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ADuM7703 Datasheet Sigma-delta Adc

Manufacturer: Analog Devices

Overview: Data Sheet.

General Description

The ADuM7703 is a high performance, second-order, Σ-Δ analogto-digital converter (ADC) with an integrated low dropout (LDO) regulator that converts an analog input signal into a high speed, single-bit data stream with on-chip digital isolation based on Analog Devices, Inc., iCoupler® technology.

The device operates from a 4.5 V to 20 V power supply range (VDD1) and accepts a pseudo differential input signal of ±250 mV (±320 mV full-scale).

The pseudo differential input is ideally suited to shunt voltage monitoring in high voltage applications where galvanic isolation is required.

Key Features

  • 5 MHz to 21 MHz master clock input frequency Offset drift vs. temperature: ±0.6 μV/°C maximum SNR: 86 dB typical 16 bits, no missing codes Full-scale analog input voltage range: ±320 mV ENOB: 14 bits typical IDD1: 10 mA maximum On-board digital isolator Operating temperature range.
  • 40°C to +125°C (16-lead SOIC_W).
  • 40°C to +105°C (8-lead SOIC_IC) 20 V operation on VDD1 High CMTI: 150 kV/μs minimum, VDD2 = 3.3 V Wide-body SOICs 16-lead SOIC_W 8-lead SOIC_IC with increased creepage.

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