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ADuM7701 Isolated Sigma-Delta ADC

Analog Devices' modulator has high AC and low offset drift performance

Image of Analog Devices' ADuM7701 Isolated Sigma-Delta ADCAnalog Devices' ADuM7701 is a high-performance, second-order, Σ-Δ modulator that converts an analog input signal into a high-speed, single-bit data stream with on-chip digital isolation based on Analog Devices iCoupler® technology. The device operates from a 4.5 V to 5.5 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.

Features
  • 5 MHz to 21 MHz external clock input rate
  • Offset drift vs. temperature: 1 μV/°C max
  • Signal-to-noise ratio (SNR): 86 dB typical
  • 16 bits, no missing codes
  • Full-scale analog input range: ±320 mV
  • Effective number of bits (ENOB): 14 bits typical
  • Current consumption 10 mA max
  • On-board digital isolator
  • Operating temperature range: -40°C to +125°C
  • High common-mode transient immunity: >150 kV/μs
  • Wide-body SOIC with increased creepage package
    • 16-pin and 8-pin package options
  • Safety and regulatory approvals (pending)
    • UL recognition
      • 5700 VRMS for 1 minute per UL 1577
    • CSA Component Acceptance Notice SA
    • VOE certificate of conformity
      • DIN V VDE V 0884-10
      • VlORM = 1270 VPEAK
      • DIN V VDE V 0884-11
      • VlORM = 1060 VPEAK
Features
  • Shunt current monitoring
  • AC motor controls
  • Power and solar inverters
  • Wind turbine inverters
  • Analog-to-digital and optoisolator replacement

Evaluation Board

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
EVALUATION BOARD I.C.EV-ADUM7701-8FMCZEVALUATION BOARD I.C.6 - Immediate
49 - Factory Stock
View Details

ADuM7701 Isolated Sigma-Delta ADCs

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
250MV LOW POWER ISO ADCADUM7701-8BRIZ250MV LOW POWER ISO ADC20 - Immediate
6720 - Factory Stock
View Details
250MV LOW POWER ISO ADCADUM7701BRWZ250MV LOW POWER ISO ADC130 - Immediate
1316 - Factory Stock
View Details
Published: 2019-09-10