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AD7942 Datasheet Pseudo Differential ADC

Manufacturer: Analog Devices

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General Description

The AD7942 is a 14-bit, charge redistribution successive approximation, analog-to-digital converter (ADC) that operates from a single 5V power supply, VDD.

It contains a low power, high speed, 14-bit sampling ADC with no missing codes, an internal conversion clock, and a versatile serial interface port.

The part also contains a low noise, wide bandwidth, short www.DataSheet4U.com aperture delay track-and-hold circuit.

Overview

Preliminary Technical Data.

Key Features

  • 14-bit resolution with no missing codes Throughput: 250 kSPS INL: ±0.4 LSB typ, ±1 LSB max (±0.0061 % of FSR) S/(N + D): 85 dB @ 20 kHz THD:.
  • 100 dB @ 20 kHz Pseudo-differential analog input range 0 V to VREF with VREF up to VDD No pipeline delay Single-supply 5V operation with 1.8 V/2.5 V/3 V/5 V logic interface Serial interface SPI®/QSPI™/µWire/DSP compatible Daisy chain multiple ADCs and BUSY indicator Power dissipation 1.15 mW @ 2.5 V/100 kSPS, 3.3 mW @ 5 V/100 kSPS, 1.15 µW @ 2.5 V/.

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