Medium voltage amplifiers are part of the ATI High Voltage Amplifier / Piezo Driver product line. If your load needs more than 250V, or a bipolar output, see the AHVA high voltage series (100V to ±2kV, slew rate to 2400V/µs).
A medium voltage amplifier amplifies a low-voltage analog control signal into an output of roughly 100V to 250V. It sits between a general-purpose op-amp and a kilovolt-class high voltage amplifier: enough swing to drive piezo stacks, piezo benders, MEMS elements and other capacitive loads, without the cost, size and insulation requirements of a kV-rated design.
ATI offers two medium voltage amplifiers, in two different forms:
| AMVA12V250V20MA | MP108T | |
|---|---|---|
| Output voltage | 10V to 250V, adjustable | Up to 200V |
| Input voltage | 12V DC | 200V |
| Form | Self-contained module with built-in high voltage DC-DC converter and three status LEDs | Surface-mount power operational amplifier on a thermally conductive, electrically insulating substrate; mounts directly to a heat sink |
| Best for | Driving a piezo or other medium voltage load directly from a 12V rail, with no separate high voltage supply | Higher-current industrial drive, and as a lower-heat drop-in upgrade from the MP108 |
Full electrical specifications differ between the two parts and are given on each product page and in its datasheet.
APPLICATIONS
Piezo actuators, piezo transducers and benders, MEMS devices, electro-optic elements, and other medium voltage or capacitive loads in industrial, test and research equipment.
Other models can be customized.
The 250V Medium Voltage Amplifier is a high-performance electronic module designed to amplify an analog input voltage into a medium-voltage output. It features an integrated high-voltage DC-DC converter, which efficiently boosts a 12V input voltage to an adjustable output range of 10V to 250V.
When powered by a 12V power supply, the amplifier's analog output voltage can swing from 10V to 250V, ensuring precise voltage control.
Key Features:
Input Voltage: 12V DC
Output Voltage: 10V to 250V
Built-in High-Voltage DC-DC Converter
Three LED Indicators for real-time status monitoring
This amplifier is engineered for reliability and efficiency, making it ideal for applications requiring stable medium-voltage amplification.
200V Medium Voltage Amplifier
High-Efficiency Upgrade for MP108
This 200V Medium Voltage Amplifier is a high-efficiency upgraded replacement for the MP108, offering significantly improved thermal performance and reduced heat generation.
The MP108T operational amplifier, designed for surface-mount applications, delivers a cost-effective solution for a wide range of industrial applications. It features enhanced efficiency, making it an ideal choice for applications that demand high power and precision.
Key Features & Advantages:
Input Voltage: 200V
Enhanced Efficiency – Produces less heat than the MP108
Four-Wire Current Limit Sensing (optional feature)
External Compensation Support for optimized performance
High Power Bandwidth: 300kHz
Maximum Output Current: 10A
Ideal for Piezo Transducer Drive Applications
Built on a Thermally Conductive, Electrically Insulating Substrate – Easily mountable to a heat sink
This next-generation amplifier is designed to deliver higher efficiency, greater reliability, and superior thermal management, making it a robust solution for high-voltage industrial applications.
