AD7715AN-5

The AD7715AN-5 is designed as a complete analog front end for low frequency measurement applications. The part can accept low level input signals directly from a transducer and outputs a serial digital word. It employs a sigma-delta conversion technique to realize up to 16 bits of no missing codes performance.

It has nine features. (1) Charge-balancing ADC which means 16 bits no missing codes and 0.0015% nonlinearity. (2) Programmable gain front end which means gains of 1, 2, 32 and 128 and differential input capability. (3) Three-wire serial interface. (4) SPI, QSPI, MICROWIRE and DSP compatible. (5) Ability to buffer the analog input. (6) 3V (AD7715-3) or 5V (AD7715-5) operation. (7) Low supply current: 450uA max @ 3V supplies. (8) Low-pass filter with programmable output update. (9) 16-lead SOIC/DIP/TSSOP. That are all the main features.

Also some static performance have been concluded into seveal points as follow. (1) Its no missing codes would be 16bit min. (2) Its integral nonlinearity would be 0.0015% of FSR max. (3) Its unipolar offset drift would be 0.5uV/°C typ. (4) Its bipolar zero drift would be 0.5uV/°C typ. (5) Its full scale drift would be 0.5uV/°C typ. (6) Its gain drift would be 0.5 ppm of FSR/°C max. (7) Its bipolar negative full scale drift would be 1uV/°C typ for gains of 1 and 2 and would be 0.6uV/°C typ for gains of 32 and 128.

Also some analog inputs and reference inputs specifications about it. (1) Its input common mode rejection is 90dB min. (2) Its normal mode 50Hz rejection would be 98dB min. (3) Its normal mode 60Hz rejection would be 98dB min. (4) Its common mode 50Hz rejection would be 150dB min. (5) Its common mode 60Hz rejection would be 150dB min. (6) Its common mode voltage range would be from AGND to AVDD. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!