The EVAL-CN0251-SDPZ is a flexible 4 channel analog front end circuit evaluation board for wide dynamic range signal conditioning. The circuit comprises of ADG1409 multiplexer, AD8226 instrumentation amplifier, AD8475 difference amplifier and AD7192 sigma delta ADC with ADR444 reference and the ADP1720 regulator. Only a few external components are used for protection, filtering and decoupling, making this circuit highly integrated and it requires a small circuit board (printed circuit board) area. This circuit evaluation board is a flexible signal conditioning circuit for processing signals of wide dynamic range, varying from several mV p-p to 20V p-p. The circuit provides the necessary conditioning and level shifting and achieves the dynamic range using the internal programmable gain amplifier (PGA) of the high resolution analog to digital converter (ADC). This circuit solves all of the challenges and provides programmable gain, high CMR and high input impedance.
- 4 channel wide dynamic range
- Industrial signal levels
- In amp input stage for high CMR
信号处理, 工业, 自动化与过程控制, 传感与仪器, 医用