Agilent Technologies 34951A User manual

Agilent Technologies
Agilent 34951A
4-Channel Isolated D/A
Converter with
Waveform Memory
Module
User’s Guide
Agilent Technologies, Inc.
Printed in Malaysia
Edition 1
June 2008 E0608
*34980-90051*
34980-90051

Notices
© Agilent Technologies, Inc. 2008
No part of this manual may be reproduced
in any form or by any means (including
electronic storage and retrieval or transla-
tion into a foreign language) without prior
agreement and written consent from
Agilent Technologies, Inc. as governed
by United States and international copy-
right laws.
Manual Part Number
34980-90051
Edition
First Edition, June 2008
Printed in Malaysia
Agilent Technologies, Inc.
3501 Stevens Creek Blvd
Santa Clara, CA 95052 USA
Microsoft® and Windows® are U.S. regis-
tered trademarks of Microsoft Corporation.
Software Revision
This guide is valid for the firmware that
was installed in the instrument at the time
of manufacture. However, upgrading the
firmware may add or change product
features. For the latest firmware and
documentation, go to the product page at:
www.agilent.com/find/34980A
Warranty
The material contained in this docu-
ment is provided “as is,” and is sub-
ject to being changed, without notice,
in future editions. Further, to the max-
imum extent permitted by applicable
law, Agilent disclaims all warranties,
either express or implied, with regard
to this manual and any information
contained herein, including but not
limited to the implied warranties of
merchantability and fitness for a par-
ticular purpose. Agilent shall not be
liable for errors or for incidental or
consequential damages in connection
with the furnishing, use, or perfor-
mance of this document or of any
information contained herein. Should
Agilent and the user have a separate
written agreement with warranty
terms covering the material in this
document that conflict with these
terms, the warranty terms in the sep-
arate agreement shall control.
Technology Licenses
The hardware and/or software described in
this document are furnished under a
license and may be used or copied only in
accordance with the terms of such license.
Restricted Rights Legend
U.S. Government Restricted Rights.
Software and technical data rights granted
to the federal government include only
those rights customarily provided to end
user customers. Agilent provides this
customary commercial license in Software
and technical data pursuant to FAR 12.211
(Technical Data) and 12.212 (Computer
Software) and, for the Department of
Defense, DFARS 252.227-7015 (Technical
Data - Commercial Items) and DFARS
227.7202-3 (Rights in Commercial Com-
puter Software or Computer Software
Documentation).
Safety Notices
CAUTION
A CAUTION notice denotes a haz-
ard. It calls attention to an operat-
ing procedure, practice, or the like
that, if not correctly performed or
adhered to, could result in damage
to the product or loss of important
data. Do not proceed beyond a
CAUTION notice until the indicated
conditions are fully understood and
met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly per-
formed or adhered to, could result
in personal injury or death. Do not
proceed beyond a WARNING
notice until the indicated condi-
tions are fully understood and met.
ii Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide

Additional Safety Notices
The following general safety precautions
must be observed during all phases of oper-
ation of this instrument. Failure to comply
with these precautions or with specific
warnings or instructions elsewhere in this
manual violates safety standards of design,
manufacture, and intended use of the
instrument. Agilent Technologies assumes
no liability of the customer’s failure to com-
ply with the requirements.
General
Do not use this products in any manner not
specified by the manufacturer. The protec-
tive features of this product may be
impaired if it is used in a manner not speci-
fied in the operation instructions.
Before Applying Power
Verify that all safety precautions are taken.
Make all connections to the unit before
applying power.
Ground the Instrument
This product is provided with protective
earth terminals. To minimize shock hazard,
the instrument must be connected to the
ac power mains through a grounded power
cable, with the ground wire firmly con-
nected to an electrical ground (safety
ground) at the power outlet. Any interrup-
tion of the protective (grounding) conduc-
tor or disconnection of the protective earth
terminal will cause a potential shock haz-
ard that could result in personal injury.
Do Not Operate in an Explosive
Atmosphere
Do not operate the instrument in the pres-
ence of flammable gases or fumes.
Do Not Remove the Instrument
Cover
Only qualified, service-trained personal
who are aware of the hazards involved
should remove instrument covers. Always
disconnect the power cable and any exter-
nal circuits before removing the instrument
cover.
Do Not Modify the Instrument
Do not install substitute parts or perform
any unauthorized modification to the prod-
uct. Return the product to an Agilent Sales
and Service Office for service and repair to
ensure that safety features are maintained.
In Case of Damage
Instruments that appear damaged or defec-
tive should be made inoperative and
secured against unintended operation until
they can be repaired by qualified service
personnel.
Safety Symbols
Waste Electrical and Electronic
Equipment (WEEE) Directive
2002/96/EC
This product complies with the WEEE
Directive (2002/96/EC) marking require-
ment. The affixed product label (see above)
indicates that you must not discard this
electrical/electronic product in domestic
household waste.
Product Category: With reference to the
equipment types in the WEEE directive
Annex 1, this product is classified as a
“Monitoring and Control instrumentation”
product.
To return unwanted products, contact
your local Agilent office, or go to
www.agilent.com/environment/product
for more information.
Technical Support
If you have questions about your shipment,
or if you need information about warranty,
service, or technical support, contact
Agilent Technologies:
In the United States: [phone]
In Europe: 31 20 547 2111
In Japan: 0120-421-345
Or go to www.agilent.com/find/assist
for information on contacting Agilent in
your country of specific location. You can
also contact your Agilent Technologies
Representative.
Alternating current
Frame or chassis
terminal
Standby supply. Unit is
not completely
disconnected from ac
mains when switch is off
Caution, risk of electric
shock
Caution, refer to
accompanying description
Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide iii

iv Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide
The Declaration of Conformity (DoC) for the 34980A mainframe
instrument can be found on page iii in the 34980A Mainframe User’s
Guide. That DoC applies to the 34980A mainframe and all available
plug- in modules.

Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide v
Contents
34951A 4-Channel Isolated D/A Converter with Waveform Memory Module. . . . . . . . . .1
Operating Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Level Output Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Waveform (Trace) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Clock In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Clock Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Trigger In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Trigger Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Auto-Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
34951A SCPI Programming Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Level Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Waveform Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
External Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
External Trigger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Auto Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Configuring a DAC Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
34951A Simplified Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
34951A D-Sub Connector Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
34951T Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

vi Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide

34951A 4-Channel Isolated D/A Converter with Waveform Memory Module
Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide 1
34951A 4-Channel Isolated D/A Converter with Waveform Memory Module
The 34951A 4- Ch Isolated D/A module (DAC module) has four
independent, isolated DAC channels that output DC voltage up to ±16V or
DC current up to ±20 mA (Level Output Mode). Since the DACs are
electrically isolated, you can stack or combine multiple DACs to have up to
±64 V on a module. It also features a capability to specify and store
waveform points (Waveform Trace Mode).
You can control each channel manually, or use the onboard memory to
store multiple sequenced points.
Operating Considerations
See the Introduction to the Plug In Modules chapter of the 34980A
Mainframe User’s Guide for detailed environmental operating conditions
for the 34980A mainframe and its installed modules. That guidance sets
maximum per channel current ratings at rated voltage for pollution degree
1 (dry) and pollution degree 2 (possible condensation) conditions, for the
DAC module.
Level Output Mode
The module can generate voltages between -16 V DC and +16 V DC at 500
µV resolution on any or all four channels. Each channel configured for
voltage output has hardware remote- sensing capability to ensure that an
accurate voltage is present at the load. With the remote sensing feature,
the DAC channel outputs an additional voltage to compensate for the
voltage drop in the test leads. Thus, using the sense connections, the load
voltage equals the programmed voltage as long as the resistance in each
sense lead is less than 2.5Ωand the maximum voltage drop in the output
leads is 0.5 volts.
When using the remote- sensing feature, connect sense wires from the load
to the High Sense and Low Sense terminals for the desired channels.
Each channel can also generate current between -20 mA and +20 mA at
630 nA resolution. When outputting current the High Sense and Low Sense
terminals are not used and are opened. For protection, each channel
incorporates a fuse that will open at greater than 20 mA. If an overload
condition exists, the fuse will open, but no error or SRQ will be generated.
To reset the fuse, remove the overload and wait a few minutes for the fuse
to cool.
NOTE To ensure that an accurate voltage is present at the loads, it is
recommended that you use remote-sensing. However, if
remote-sensing is not used, do not connect loads or cables to the
remote-sensing terminals (H Sense and L Sense).

2 Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide
34951A 4-Channel Isolated D/A Converter with Waveform Memory Module
Waveform (Trace) Mode
Using the internal waveform point storage, you can output provided sine,
square, or ramp and triangle wave shapes, or define your own wave shape
with up to 512,000 points. The module can output points with a settling
time of 40 µs and a 200 kHz point- to-point update rate.
The on- board memory provides storage for you to create up to 32 voltage
or current waveforms. You can apply a different waveform to each channel
to output. Or you can apply the same waveform to more than one channel.
For each channel you can designate the gain, frequency, and/or offset for
its output.
The waveforms are stored in volatile memory. Therefore, whenever power
to the 34980A is cycled, the volatile memory empties of data it has
contained.
The waveform feature of the 34951A is not intended as a full- featured
substitute for a function generator, but as a means of storing
point- to- point updates.
Clock In
You can configure each DAC channel on the module to synchronize off
either an internally- generated 20 MHz clock or the positive edge of an
external user- supplied clock.
An external clock must be less than 10 MHz or indeterminate behavior
will result. Additionally, as the maximum point- to- point update rate of the
DACs is 200 kHz, if you configure a DAC to run off an external clock, you
will need to ensure that the correct clock divisor is also configured for
that DAC. For example, if you supply a 10 MHz external clock, the
minimum clock divisor is 50 because the maximum update rate is 200
kHz. If a clock divisor less than the minimum is configured, indeterminate
behavior will results. Thresholds for the Clock In are 5 V TTL tolerant.
Clock Out
There is one clock output on the DAC module, which you can configure to
output at frequencies up to 10 MHz. Since it uses a 16-bit clock divisor,
the available output frequencies range in steps of 20 MHz/216 with a
minimum output frequency of 305 Hz. The output impedance of the Clock
Out is 50 Ω.
NOTE The line between external Clock Out and external Clock In is shared.
You can use the external Clock Out to provide the external Clock In
signal. However, both a user-supplied external clock and the
module’s Clock Out cannot drive the line at the same time.

34951A 4-Channel Isolated D/A Converter with Waveform Memory Module
Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide 3
Trigger In
You can configure each DAC on the module to trigger off an externally
provide Trigger In that has a pulse width greater than 100 ns. The Trigger
In line is 5V TTL tolerant.
Trigger Out
The DAC module can source a TTL level Trigger Out. Trigger Out has a
pulse width between 5 and 10 µs.
Auto-Calibration
The 34951A features auto- calibration (auto- cal). Upon receipt of the
CALibration:MODule? command, you can adjust all four channels of the
DAC module. The adjustments, performed under complete control of the
34980A, require approximately one minute per module.
Before performing an auto calibration, be sure to allow a one- hour
warm- up of the DMM and 34951A module. The adjustment is valid for 90
days for temperatures within 5 oC of the auto-cal temperature. For the
calibration constants to be saved, calibration security must be off.
Otherwise, the new calibration constants can be used while power is on.
But when power is lost, the DAC module will revert to using the
previously stored calibration constants. For SCPI programming examples
for the auto- cal, refer to page 6.
NOTE The line between external Trigger Out and external Trigger In is
shared. You can use the external Trigger Out to provide the external
Trigger In signal. However, both a user-supplied external trigger and
the 34951A Trigger Out cannot drive the line at the same time.
WARNING Because the auto-cal uses the internal DMM, do not route signals
on ABus1 when performing an auto-cal of a DAC module. Do not
apply a signal to ABus1 via the Analog Bus connector on the rear
of the mainframe (pins 4, 5, and 9). The auto-cal will abort if a
signal is detected on ABus1.

4 Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide
34951A SCPI Programming Examples
34951A SCPI Programming Examples
The programming examples below provide you with SCPI command
examples to use for actions specific to the DAC module.
The slot and channel addressing scheme used in these examples follow
the form sccc where sis the mainframe slot number (1 through 8) and ccc
is the three- digit channel number. Valid channels for this module
are 1- 4. For information on specific configurations, refer to the simplified
schematic on page 8.
For complete information on the SCPI commands used to program the
34980A, refer to the Agilent 34980A Programmer’s Reference contained on
the 34980A Product Reference CD. For example programs, also refer to the
34980A Product Reference CD.
Level Mode
Example: Outputting a DC voltage level This command sets the output voltage
level for the specified DAC channels. After setting the desired level, send
the OUTPut:STATe command to close the corresponding output relay and
enable outputs from the specified channels. The following command
outputs +2.5 V DC on DAC channels 1 and 2 for a module in slot 4.
SOURce:VOLTage 2.5,(@4001,4002)
OUTPut:STATe ON,(@4001,4002)
Example: Outputting a current level This command sets the output current
level on the specified channels on the DAC module. After setting the
desired level, send the OUTPut:STATe command to close the
corresponding output relay and enable outputs from the specified
channels. The following command outputs +5 mA on DAC channels 1 and
2 for a module in slot 4 and closes the output relay.
SOURce:CURRent 5E-3,(@4001,4002)
OUTPut:STATe ON,(@4001,4002)
Waveform Mode
Example: Downloading a waveform to memory and outputting waveform from DACs
The following command segment downloads a 1000-point sine waveform to
memory on the module in slot 4 and outputs the waveform from DAC
channels 1 and 2. The trace name is "TEST_SINE".
TRACe:FUNCtion 4,SINusoid, TEST_SINE, 1000
SOURce:FUNCtion:TRACe TEST_SINE,(@4001,4002)
OUTPut:STATe ON,(@4001,4002)
SOURe:FUNCtion:ENABle ON,(@4001,4002)

34951A SCPI Programming Examples
Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide 5
Example: Downloading trace points to memory and outputting waveform from
DACs
The following command segment downloads seven trace points to memory
on the module in slot 4 and output the waveform from DAC channels 1
and 2. The trace name is "NEG_RAMP".
TRACe:DATA 4,NEG_RAMP, 1, .67, .33, 0, -.33, -.67, -1
SOURce:FUNCtion:TRACe NEG_RAMP,(@4001,4002)
OUTPut:STATe ON,(@4001,4002)
SOURe:FUNCtion:ENABle ON,(@4001,4002)
Example: Setting the amplitude of a waveform for offset and gain
The following commands set the offset to 5.25 and the gain to 1.5 on DAC
channels 1 and 2 of a module in slot 4.
SOURce:MODE VOLTage,(@4001,4002)
SOURce:FUNCtion:VOLTage:OFFSet 5.25,(@4001,4002)
SOURce:FUNCtion:VOLTage:GAIN 1.5,(@4001,4002)
Example: Setting cycle count for a waveform The following command
segments turn off the trace output mode on DAC channels 1 and 2 in slot
4, set the cycle count to 100, then turn the trace output mode
back on.
SOURce:FUNCtion:ENABle OFF,(@4001,4002)
SOURce:FUNCtion:TRACe:NCYCles 100,(@4001,4002)
SOURce:FUNCtion:ENABle ON,(@4001,4002)
Example: Deleting a waveform The following command deletes the trace
named "TEST_WFORM" from the module in slot 4.
TRACe:DELete 4,TEST_WFORM
External Clock
Example: Selecting an external clock source and setting a clock divisor The first
command selects the external clock source on DAC channels 1 and 2 in
slot 4. The external clock input is shared between these two channels. The
second command sets the clock divisor to 100 on the same DAC channels
(the external clock input signal is divided by 100).
SOURce:FUNCtion:CLOCk:SOURce EXTernal,(@4001,4002)
SOURce:FUNCtion:CLOCk:EXTernal:DIVisor 100,(@4001,4002)
Example: Outputting a clock The following commands set the clock output
frequency for slot 4 to 5 kHz and enable the output.
SOURce:MODule:CLOCK:FREQuency 5E+3,4
SOURce:MODule:CLOCK:STATE ON,4

6 Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide
34951A SCPI Programming Examples
External Trigger
Example: Selecting the external trigger source and issuing trigger source The
following command segment enables the trigger output mode on a DAC
module installed in slot 4, then enables the external trigger source on DAC
channels 1 and 2. The last command issues an external trigger pulse from
the module.
SOURce:MODule:TRIGger:OUTPut ON,4
SOURce:FUNCtion:TRIGger:SOURce EXTernal,(@4001,4002)
SOURce:MODule:TRIGger:EXTernal:IMMediate 4
Auto Calibration
Example: Performing an auto calibration on all DAC channels This command
performs an auto- cal of all four channels on a DAC module. Because the
auto- cal takes can take up to one minute per DAC channel, you may want
to increase the time-out value of your programming application prior to
sending this command.
The following command performs an auto- cal of a DAC module in slot 5
and returns a pass/fail indication.
CALibration:MODule? 5
The following command performs an auto- cal of all 34951A DAC modules
in a mainframe.
CALibration:MODule? ALL
Example: Effects of using the secure state command on storing calibration
constants The following command removes instrument security, and the
calibration constants are stored in non- volatile memory if sent before the
CALibration:MODule? command.
CALibration:SECure:STATe OFF <security code>
If the instrument is secured at the time of auto- cal, the calibration
constants are stored in volatile memory and are lost when power is turned
off. The *RST command will not discard the calibration constants. The
command to secure the instrument is:
CALibration:SECure:STATe ON <security code>
NOTE The default security code is AT34980.

34951A SCPI Programming Examples
Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide 7
Configuring a DAC Module
Example: Querying the system for module identify (all modules) The following
command returns the identify of the module installed in slot 7.
SYSTem:CTYPe? 7
Example: Resetting the module(s) to power-on state The following command
resets a module in slot 4 to its power- on state.
SYST:CPON 4
NOTE Using this command will erase any downloaded waveforms.

8 Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide
34951A Simplified Block Diagrams
34951A Simplified Block Diagrams
The following diagram shows how the module is generally configured.
For more detail on the internal configuration of each DAC channel,
see the next page.
16 Bits DAC
1
16 Bits DAC
2
16 Bits DAC
3
16 Bits DAC
4
34951A Module User-Supplied Connections
Channel 001
Channel 002
Channel 003
Channel 004
Ext Clock In/Out
Ext Trig In/Out
Ext Clock Out
Enable Ext Trig Out Enable
Int Clock Int Trig

34951A D-Sub Connector Pinout
Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide 9
The following diagram shows individual DAC channel configuration.
All channels are configured the same.
34951A D-Sub Connector Pinout
16 Bits
Waveform
Memory
HI Voltage Sense
LO Voltage Sense
HI Voltage, + Current
LO Voltage, −Current
Calibration Constant
(non-volatile memory)
Immediate
Data 25 mA Thermal Fuse
(resettable)
34951A Module User-Supplied Connections
(1 of 4 Channels)
DAC x
Control Logic
Internal
Clock
Internal
Trigger
Ext Clock In/Out
Ext Trig In/Out
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34
GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND
33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
GNDGND NC 4 L4H3L3H
GNDGND
NC2L2HGND NC1L1H GND
EXT
CLKGND 4L
Sense
4H
SenseGNDTRIGGND
2L
Sense
2H
Sense
1L
Sense
1H
Sense GND
3L
Sense
3H
SenseGNDGND
50-Pin D-Sub
Female Connector
Description Socket Description Socket Description Socket Description Socket Description Socket
1L 15 3L Sense 21 GND 8 GND 34 GND 44
1H 16 3H Sense 22 GND 9 GND 35 GND 45
1L Sense 31 4L 3 GND 13 GND 36 GND 46
1H Sense 32 4H 4 GND 17 GND 37 GND 47
2L 11 4L Sense 19 GND 18 GND 38 GND 48
2H 12 4H Sense 20 GND 23 GND 39 GND 49
2L Sense 27 External Clock 24 GND 26 GND 40 GND 50
2H Sense 28 Trigger 25 GND 29 GND 41 No Connect 2
3L 5 GND 1 GND 30 GND 42 No Connect 10
3H 6 GND 7 GND 33 GND 43 No Connect 14

10 Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide
34951T Terminal Block
34951T Terminal Block
Each terminal block is labeled with the model number and the abbreviated
module name. In addition, space is available on the label for you to write
the slot number.
The 34980A Product Reference CD (shipped with the instrument) contains
a 34951T Wiring Log for you to document your wiring configuration for
this module. You can open the wiring log file in Microsoft® Excel® or
Adobe® Acrobat® format.
WireSize:
20AWGTypical
18AWGMax

Index
Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide 11
Index
A
auto-calibration, 3
C
calibration, 3
clock input, 2
clock output, 2
connector pinouts, 9
D
description, 1
D-sub pinouts, 9
E
external clock input, 2
M
module description, 1
O
overload fuse, 1
P
pinouts, 9
programming examples, 4
R
remote sensing, 1
S
sense terminals, 1
simplified block diagrams, 8
synchronization, 2
T
terminal block, 10
trigger output source, 3
triggering a DAC, 3
W
warranty, ii
wiring log, 10

12 Agilent 34951A 4-Channel Isolated D/A Converter Module User’s Guide
Index