Analog Technologies AHVA250V2X20MA User manual

1161 Ringwood Ct, #110, San Jose, CA 95131, U. S. A. Tel.: [phone], Fax: [phone] www.analogtechnologies.com
Copyrights 2000-2023, Analog Technologies, Inc. All Rights Reserved. Updated on 7/7/2023 Email: [email protected]/[email protected] 1
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nalog Technologies AHVA250V2X20MA
High Voltage Amplifier/Piezo Driver
Figure 1. Physical Photos of AHVA250V2X20MA
MAIN FEATURES
Built-in High Voltage Converter
Compact Size: 176.5(L)×147.0(W)×41.2(H) mm
High Current Capability: Up to 20mA
High Slew Rate: 100V/µs
Wide Output Voltage Range: VOUT=10~250V@VIN=24V
Offset Voltage Range: 10V
Bandwidth: Up to 10kHz
Weight: 2.2lb (1.0kg)
APPLICATIONS
High voltage amplifications for driving piezos and other high
voltage loads.
DESCRIPTION
The AHVA250V2X20MA is an electronic module for
amplifying an analog input voltage into a high voltage output.
Figure 1 shows its physical photo. It comes with a high voltage
DC-DC converter, which converts the 24V input voltage into a
10 to 250V output voltage. The analog output voltage can
swing almost from 10 to 250V when it is powered by a 24V
power supply. There is three LEDs indicating if the amplifier
works properly.
CAUTION
First, set up the AC power supply and fix it stably and firmly.
Then make sure that the two switches of the high voltage
amplifier are OFF. Connect the 24V DC power supply to the
VPS and PGND of the high voltage amplifier. After the
connection is complete, turn on the low voltage switch and set
the input AC voltage or DC voltage. Then use the output
monitor to check whether the input set voltage is correct.
Finally turn on the high voltage switch.
Table 1. Descriptions of Terminal Block Pin Functions
Pin # Name Type Description
1 VPS Power Input Power supply 24V.
2 PGND Power Ground Power ground pin.
3 SBDN Digital Input This is a duplex pin. It sets the amplifier into Off, Standby or On mode.
4 AGND Signal Ground Signal ground pin. Connect ADC and DAC grounds to here.
5 10VR Analog Output 10V voltage reference.
6 IHVMON Analog Input -
7 HVMON Analog Output
Output voltage indication. When going from 0.4V to 10V, it indicates the
output voltage is from 10V to 250V.
8 OFFSO Analog Output
Output voltage setting. When going from 0.4V to 10V, it indicates the output
voltage is from 10V to 250V. The pin is controlled by a potentiometer.
9 GND Signal Ground Signal ground pin. Connect ADC and DAC grounds to here.

1161 Ringwood Ct, #110, San Jose, CA 95131, U. S. A. Tel.: [phone], Fax: [phone] www.analogtechnologies.com
Copyrights 2000-2023, Analog Technologies, Inc. All Rights Reserved. Updated on 7/7/2023 Email: [email protected]/[email protected] 2
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nalog Technologies AHVA250V2X20MA
High Voltage Amplifier/Piezo Driver
Pin # Name Type Description
BNC 1 Input Analog Input Output voltage setting. When going from 0.4V to 10V, it indicates the output
voltage is from 10V to 250V.
BNC 2 Input+Offset
Monitor Analog Output Input+Offset input control signal indication.
BNC 3 HVOUT Analog Output Output voltage for driving the load.
OGND Output
Ground Connect this pin to the load return terminal.
SPECIFICATIONS
Table 2. Characteristics (Test ambient temperature TA = 25°C)
Parameter Symbol Test Conditions Min. Typ. Max. Units
Power Supply Input
Input Range VVPS 23 24 25 V
Input Current IIN 0 4 A
Voltage Output
Output Voltage VOUT 10 250 V
Output Current IOUT 0 20 mA
SBDN Pin (Pin 3)
Off State
VSBDN-OFF 0 0.4 V
VSBDN-OFF-HI
Going up from Off to
Standby threshold 2.1 V
VSBDN-OFF-LOW
Going down from Standby
to Off threshold 0.4 V
SBDN State
VSBDN-STANDBY 2.1 2.51 V
VSBDN-SB-HI
Going up from Standby to
On threshold 2.64 V
VSBDN-SB-LOW
Going down from On to
Standby threshold 2.51 V
On State VSBDN-ON 2.64 VVPS V
SBDN Current ISBDN 10 20 µA
10VR Pin (Pin 5)
Voltage Reference VREF 10 V
Maximum Input Power 10 W
Maximum Slew Rate 100 V/µs

1161 Ringwood Ct, #110, San Jose, CA 95131, U. S. A. Tel.: [phone], Fax: [phone] www.analogtechnologies.com
Copyrights 2000-2023, Analog Technologies, Inc. All Rights Reserved. Updated on 7/7/2023 Email: [email protected]/[email protected] 3
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nalog Technologies AHVA250V2X20MA
High Voltage Amplifier/Piezo Driver
Figure 2. VINPUT+OFFSET vs. VOUT
On
VSBDN
Off
Standby
2.1 2.642.51 0.4 (V)
Figure 3. VSBDN vs. Amplifier States

1161 Ringwood Ct, #110, San Jose, CA 95131, U. S. A. Tel.: [phone], Fax: [phone] www.analogtechnologies.com
Copyrights 2000-2023, Analog Technologies, Inc. All Rights Reserved. Updated on 7/7/2023 Email: [email protected]/[email protected] 4
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nalog Technologies AHVA250V2X20MA
High Voltage Amplifier/Piezo Driver
Figure 4. Schematic for Driving the Load

1161 Ringwood Ct, #110, San Jose, CA 95131, U. S. A. Tel.: [phone], Fax: [phone] www.analogtechnologies.com
Copyrights 2000-2023, Analog Technologies, Inc. All Rights Reserved. Updated on 7/7/2023 Email: [email protected]/[email protected] 5
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nalog Technologies AHVA250V2X20MA
High Voltage Amplifier/Piezo Driver
As shown in Figure 5 ~ Figure 8, when a sine wave of
0.4V ~ 10V, f = 100Hz/10kHz/20kHz/35kHz, is applied to AC input pin, measure the waveform of HVO. Gain=25.
Figure 5. f=100Hz
Figure 6. f=10kHz
Figure 7. f=20kHz
Figure 8. f=35kHz

1161 Ringwood Ct, #110, San Jose, CA 95131, U. S. A. Tel.: [phone], Fax: [phone] www.analogtechnologies.com
Copyrights 2000-2023, Analog Technologies, Inc. All Rights Reserved. Updated on 7/7/2023 Email: [email protected]/[email protected] 6
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nalog Technologies AHVA250V2X20MA
High Voltage Amplifier/Piezo Driver
As shown in Figure 9 & Figure 10, VInput+Offset = 0 ~ 10V, VOUT =1V ~ 250V, the output waveform delay time is 60µs.
Figure 9.
Figure 10.

1161 Ringwood Ct, #110, San Jose, CA 95131, U. S. A. Tel.: [phone], Fax: [phone] www.analogtechnologies.com
Copyrights 2000-2023, Analog Technologies, Inc. All Rights Reserved. Updated on 7/7/2023 Email: [email protected]/[email protected] 7
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nalog Technologies AHVA250V2X20MA
High Voltage Amplifier/Piezo Driver
DIMENSIONS
Figure 11. Dimensions of AHVA250V2X20MA
ORDERING INFORMATION
Table 3. Part Number
Part Number Description
AHVA250V2X20MA 250V high voltage amplifier

1161 Ringwood Ct, #110, San Jose, CA 95131, U. S. A. Tel.: [phone], Fax: [phone] www.analogtechnologies.com
Copyrights 2000-2023, Analog Technologies, Inc. All Rights Reserved. Updated on 7/7/2023 Email: [email protected]/[email protected] 8
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nalog Technologies AHVA250V2X20MA
High Voltage Amplifier/Piezo Driver
NOTICE
1. It is important to carefully read and follow the warnings, cautions, and product-specific notes provided with electronic
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