Released by piezosystem jena GmbH, the 12V40 CLE is a compact piezo amplifier with an integrated measurement system for low-voltage piezo actuators that is particularly suitable for OEMs. The single-channel amplifier has 40-mA output power, and it can be used for subnanometer positioning. Only a 12-VDC power supply is required, with 24-VDC optional. The external measurement system and the electronic PID controller eliminate drift and hysteresis, the company says. A modulation input, a monitoring output and the driving signal can be tapped off from the front plate connectors or the rear wiring.