ADCs - Analog Devices
Description
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...
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