AD7708

a 8-/10-Channel, Low Voltage, Low Power, ⌺-⌬ ADCs AD7708/AD7718 FEATURES 8-/10-Channel, High Resolution ⌺-⌬ ADCs AD7708 Has 16-Bit Resolution AD7718 Has 24-Bit Resolution Factory-Calibrated Single Conversion Cycle Setting Programmable Gain Front End Simultaneous 50 Hz and 60 Hz Rejection VREF Select™ Allows Absolute and Ratiometric Measurement Capability Operation Can Be Optimized for Analog Performance (CHOP = 0) or Channel Throughput (CHOP = 1) INTERFACE 3-Wire Serial SPITM, QSPITM, MICROWIRETM, and DSP-Compatible Schmitt Trigger on SCLK POWER Specified for Single 3 V and 5 V Operation Normal: 1.28 mA Typ @ 3 V Power-Down: 30 ␮A (32 kHz Crystal Running) On-Chip Functions Rail-to-Rail Input Buffer and PGA 2-Bit Digital I/O Port GENERAL DESCRIPTION The AD7708/AD7718 are complete analog front-ends for low frequency measurement applications. The AD7718 contains a 24-bit Σ-∆ ADC with PGA and can be configured as 4/5 fullydifferential input channels or 8/10 pseudo-differ...