110V High Voltage, 1A High Current, Operational Amplifier

The ADHV4710 is a high voltage, high power, high speed operational amplifier optimized for driving up to ±1A at ±1300V/μs into capacitive and resistive loads. Combining a high voltage amplifier with low voltage analog circuitry and an SPI programmable digital engine, the ADHV4710 is ideally suited for high voltage applications such as automated test equipment (ATE), programmable power supplies, and piezo drive.

The ADHV4710 has extensive configurability for high voltage signal chains. The amplifier achieves high slew rate and bandwidth at high gain but can alternatively be configured in low gain for high voltage input and output. External transconductance resistor RSLEW enables stability under any gain and adjustable slew rate. External compensation capacitor CCOMP enables the amplifier output to stably drive unlimited capacitive loads.

A proprietary high voltage BCDMOS process, novel high voltage architecture, and thermally enhanced package from Analog Devices Inc. enable this high-performance amplifier. Fault protection and monitoring are programmable using SPI. Additional analog features extend functionality: junction temperature sensor voltage output and adjustable shutdown delay. The ADHV4710 operates on high voltage dual supplies up to ±55V, asymmetrical dual supplies, or a single supply of 110V.

APPLICATIONS

* High voltage power amplifier (PA)

* High voltage SMU/VI source

* High voltage arbitrary waveform generator (AWG)

* Piezoelectric transducer drive

* Programmable power supplies

* Wide high voltage supply range: ±12V to ±55V

* Low quiescent current: 12mA

* High output capability

* Output voltage range: Up to ±52V for IOUT = ±100 mA;

* High output current drive: ±1A continuous;

* High slew rate: ±1300V/μs into 1nF load

* Extensive configurability

* Unlimited capacitive loads stability with external compensation and output slew limiting

* Stable for any gain and adjustable slew rate with external transconductance RSLEW

* Programmable supply current with shutdown mode