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AD7903 - PulSAR ADC

General Description

The AD7903 is a dual 16-bit, successive approximation, analogto-digital converter (ADC) that operates from a single power supply, VDDx, per ADC.

It contains two low power, high speed, 16-bit sampling ADCs and a versatile serial port interface (SPI).

Key Features

  • 16-bit resolution with no missing codes Throughput: 1 MSPS Low power dissipation 7.0 mW at 1 MSPS (VDD1 and VDD2 only) 12.0 mW at 1 MSPS (total) 140 µW at 10 kSPS INL: ±0.5 LSB typical, ±2.0 LSB maximum SINAD: 93.5 dB at 1 kHz THD:.
  • 112 dB at 1 kHz True differential analog input range: ±VREF 0 V to VREF with VREF between 2.4 V to 5.1 V Allows use of any input range Easy to drive with the ADA4941-1 No pipeline delay Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface Se.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Data Sheet FEATURES 16-bit resolution with no missing codes Throughput: 1 MSPS Low power dissipation 7.0 mW at 1 MSPS (VDD1 and VDD2 only) 12.0 mW at 1 MSPS (total) 140 µW at 10 kSPS INL: ±0.5 LSB typical, ±2.0 LSB maximum SINAD: 93.5 dB at 1 kHz THD: −112 dB at 1 kHz True differential analog input range: ±VREF 0 V to VREF with VREF between 2.4 V to 5.1 V Allows use of any input range Easy to drive with the ADA4941-1 No pipeline delay Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface Serial port interface (SPI)/QSPI/MICROWIRE/DSP compatible 20-lead QSOP package Wide operating temperature range: −40°C to +125°C Dual Differential 16-Bit, 1 MSPS PulSAR ADC 12.