Single Micropower, Chopper Stabilized, RRIO Op Amp Evaluation Board


The ISL28133EVAL1Z evaluation board is configured as a precision high-gain (G = 10,000) differential amplifier and demonstrates the level of performance possible with this type of amplifier while operating from battery voltages as low as 2.4V.

The ISL28133 chopper stabilized rail-to-rail op amp features a low 8µV maximum VOS over-temperature and a 0.1Hz 1/f noise corner frequency enabling very high gain single-stage DC amplifiers that can operate from single cell batteries while consuming only 20µA of current.


  • Operates from a single supply, +2.4VDC to +5.5VDC or from split supplies, ±1.2VDC to ±2.75V
  • Configured for a single op amp connected for single-ended or differential input with closed loop gain of 10,000
  • Single external reference voltage (VREF) pin and provisions for a user-selectable voltage divider-filter included


  • Bidirectional current sense
  • Temperature measurement
  • Medical equipment
  • Electronic weigh scales

ISL28133EVAL1Z RRIO Chopper Op Amp Eval Board

ISL28133EVAL1Z RRIO Chopper Op Amp Evaluation Board





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Disclaimer: THIS MATERIAL IS PROVIDED “AS-IS” FOR EVALUATION PURPOSES ONLY. RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (collectively, “Renesas”) DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION, FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. Renesas provides evaluation platforms and design proposals to help our customers to develop products. However, factors beyond Renesas' control, including without limitation, component variations, temperature changes and PCB layout, could significantly affect the product performance. It is the user’s responsibility to verify the actual circuit performance.