EVAL-CN0255-SDPZ

EVAL-CN0255-SDPZ is a CN0255 circuit evaluation board. In most systems, there are trade-offs between performance and low power. The focus of this circuit design is to explore a few of these trade-offs and still achieve low power (8mW typical) and high performance in a 16-bit, 100kSPS data acquisition system. This circuit uses the AD7988-1, a low power (350 µA) PulSAR® analogue-to- digital converter (ADC), driven directly from the ADA4841-1 high performance, low voltage, low power op amp. This amplifier was chosen for its excellent dynamic performance and its ability to operate with a single-supply voltage and to provide a rail-to-rail output. In addition, the input common mode voltage range includes the negative rail. The AD7988-1 ADC requires an external voltage reference between 2.4V and 5.1V. In this application, the voltage reference chosen was the ADR4525 precision 2.5V reference.

• Evaluation board connects to SDP-B controller board (EVAL-SDP-CB1Z) through 120-pin connector