GENERAL DESCRIPTION

The AD7684 is a 16-bit, charge redistribution, successive approximation, PulSAR® analog-to-digital converter (ADC) that operates from a single power supply, VDD, between 2.7 V to 5.5 V. It contains a low power, high speed, 16-bit sampling ADC with no missing codes, an internal conversion clock, and a serial, SPI-compatible interface port. The part also contains a low noise, wide bandwidth, short aperture delay, track-and-hold circuit.

FEATURES

16-bit resolution with no missing codes

Throughput: 100 kSPS

INL: ±1 LSB typical, ±3 LSB maximum

True differential analog input range: ±VREF

0 V to VREF with VREF up to VDD on both inputs

Single-supply operation: 2.7 V to 5.5 V

Serial interface SPI®-/QSPI-™/MICROWIRE-™/DSP-compatible

Power dissipation

4 mW @ 5 V

1.5 mW @ 2.7 V

150 μW @ 2.7 V/10 kSPS

Standby current: 1 nA

8-lead MSOP package

APPLICATIONS

Battery-powered equipment

Data acquisition

Instrumentation

Medical instruments

Process control

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