AD7708BRUZ

The AD7708BRUZ is a high-resolution 16-bit Sigma-Delta analog-to-digital converter (ADC) designed for low-frequency measurement applications. It integrates a multiplexer (MUX), programmable gain amplifier (PGA), and ADC core in a single CMOS device. The converter supports up to 4 fully differential or 8 pseudo-differential input channels, configurable through the SPI/DSP-compatible serial interface.

The ADC operates from a single 3V (2.7V to 3.3V) or 5V supply, with a typical sampling rate of 1.37 kSPS. It uses an external voltage reference for ratiometric or absolute measurements. The architecture provides simultaneous 50 Hz and 60 Hz rejection, making it suitable for industrial process control and instrumentation.

The device is offered in a compact 28-pin TSSOP package (0.173" width) for surface-mount assembly. It is specified over the industrial temperature range of -40°C to +85°C. The AD7708BRUZ includes a two-bit digital I/O port and a Schmitt trigger on the serial clock for robust noise immunity.

This ADC is ideal for applications requiring high accuracy at low frequencies, such as pressure transducers, smart transmitters, and portable instrumentation. The programmable gain front end allows direct interface with low-level sensor outputs without external signal conditioning.