Analog Devices HS Precision Amplifiers
Analog Devices’ ADHV4702-1 is a high voltage, unity-gain stable precision operational amplifier that is designed for a wide range of applications, such as high-side current sensing or voltage monitoring in automated test equipment or precision test and measurement instruments.
As well as high voltage waveform generation in scientific instruments, sensor bias and control for high performance sensors such as avalanche photodiodes, silicon photomultipliers, ion lenses, and piezoelectric transducers.
The ADHV4702-1 is built on a next-generation high-voltage BCDMOS process. It can operate from a ±12V to ±110V dual power supply or a single supply up to 220V and offers a ±107V input common mode voltage range as well as near rail-to-rail output, with 10MHz of small signal bandwidth and a 74V/µs slew rate.
The device is housed in a 12-lead 7mm x 7mm LFCSP that meets IEC61010-1 creepage and clearance requirements, with an electrically isolated exposed copper pad that simplifies thermal management and improves system safety by allowing thermal connections to chassis ground regardless of supply connections.
An innovative input architecture enables high voltage operation while maintaining very high precision with high input impedance, low bias current drift, low offset voltage/drift, and low noise. The amplifier’s 170dB open loop gain and 160dB CMRR enable excellent system accuracy in high gain applications.
The amplifier also provides designers features that allow for optimization to the application. Supply current can be adjusted to optimize performance and power dissipation, and a shutdown pin is available to save power when the amplifier isn’t in use.
The integrated temperature sensor and thermal shutdown capability improve system robustness over wide operating temperature ranges. To learn more about Analog Devices ADHV4702-1 220V precision amplifiers and the associated evaluation board, visit Mouser.com.
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