ADuM7701

RECOMMENDED FOR NEW DESIGNS

16-Bit, Isolated Sigma-Delta Modulator

Data Sheet (Rev. A)
Part Models
6
1ku List Price
Starting From $4.79
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Part Details

  • 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
  • High common-mode transient immunity: 150 kV/μs minimum, VDD2 = 3.3 V
  • Wide-body SOICs
    • 16-lead SOIC_W
    • 8-lead SOIC_IC with increased creepage
  • Safety and regulatory approvals
    • 8-lead SOIC_IC
      • UL 1577
        • VISO = 5700 V rms for 1 minute
    •  IEC/EN/CSA 62368-1
    • IEC/CSA 60601-1
    • IEC/CSA 61010-1
    • DIN EN IEC 60747-17 (VDE 0884-17)
      • VIORM = 1401 VPEAK
    • 16-lead SOIC_IC
      • UL 1577
        • VISO = 5700 V rms for 1 minute
    •  IEC/EN/CSA 62368-1
    • IEC/CSA 60601-1
    • IEC/CSA 61010-1
    • DIN EN IEC 60747-17 (VDE 0884-17)
      • VIORM = 1401 VPEAK
ADuM7701
16-Bit, Isolated Sigma-Delta Modulator
ADuM7701 Functional Block Diagram
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Documentation

Data Sheet 1

User Guide 2

Technical Articles 1

Safety and Regulatory Compliance 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
ADSP-CM402F
LAST TIME BUY

150MHz ARM Cortex-M4 with 11+ ENOB ADC, LQFP120
Buck Regulators & Controllers 1
ADP2360
RECOMMENDED FOR NEW DESIGNS 50 mA, 60 V, High Efficiency Buck Regulator
Interface Transceivers & Isolators 3
ADUM6000
PRODUCTION Isolated, 5 kV, DC/DC Converter
ADuM6028
RECOMMENDED FOR NEW DESIGNS Low Emission, 5 kV Isolated DC-to-DC Converters
ADuM6020
RECOMMENDED FOR NEW DESIGNS Low Emission, 5 kV Isolated DC-to-DC Converters
Processors & Microcontrollers 4
ADSP-CM403F
PRODUCTION

240MHz ARM Cortex-M4 with 13+ ENOB ADC, LQFP120
ADSP-CM407F
PRODUCTION 240MHz ARM Cortex-M4 with 11+ ENOB ADC, LQFP176
ADSP-CM408F
PRODUCTION 240MHz ARM Cortex-M4 with 13+ ENOB ADC, LQFP176
ADSP-CM409F
PRODUCTION 240MHz ARM Cortex-M4 with 13+ ENOB ADC, BGA212
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Tools & Simulations

IBIS Model 1

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
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EVAL-ADuM7701

ADuM7701 Evaluation Board

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Features and Benefits

  • Fully featured evaluation board for the ADuM7701
  • On-board power supplies
  • Standalone capability
  • SDP-H1 controller board compatible
  • PC-based software for control and data analysis

Product Details

The EV-ADuM7701-8FMCZ is a fully featured evaluation board that allows the user to evaluate all features of the ADuM7701 isolated analog-to-digital converter (ADC). The EVAL-SDP-CH1Z system demonstration platform high speed (SDP-H1) controller board controls the EV-ADuM7701-8FMCZ evaluation board via the J9 connector, and through the USB port of a PC using the Analysis Control Evaluation (ACE) software. The ACE software is available for download on the ACE software page.

On-board components include an isolated, 5 kV, isoPower dc-to-dc converter (the ADuM6000), a 50 mA, 60 V, high efficiency buck regulator (the ADP2360ACPZ-5.0), and a 5 V, low noise, low dropout (LDO) regulator (the ADP7104ARDZ-5.0).

This user guide explains how to use the EV-ADuM7701-8FMCZ evaluation board to evaluate the ADuM7701. The 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, Inc., iCoupler technology. The device is powered by a 4.5 V to 5.5 V power supply (VDD1) and accepts a pseudo differential input signal of up to ±250 mV (±320 mV at full scale). The pseudo differential input shunts voltage monitoring in high voltage applications where galvanic isolation is required.

The analog input is continuously sampled by a high performance analog modulator, and converts to a ones density digital output stream with a data rate of up to 21 MHz. The original information can be reconstructed with the appropriate digital filter to achieve an 86 dB signal-to-noise ratio (SNR) at 78.1 kSPS with a 20 MHz master clock (MCLK) for the ADuM7701. The serial input/output is powered by a supply of either 5 V or 3.3 V (VDD2).

The serial interface is digitally isolated. The on-chip isolation provides performance characteristics superior to alternatives such as optocoupler devices due to high speed complementary metal-oxide semiconductor (CMOS) technology combined with monolithic transformer technology. The ADuM7701 comes in both 16-lead and 8-lead, wide-body SOIC packages, and has an operating temperature range of −40° C to +125° C.

Complete specifications for the ADuM7701 are provided in the ADuM7701 data sheet and must be consulted in conjunction with this user guide when using the evaluation board. Full details on the EVAL-SDP-CH1Z board are available on the SDP-H1 product page.
EVAL-ADuM7701
ADuM7701 Evaluation Board
ADuM7701 Evaluation Board ADuM7701 Evaluation Board ADuM7701 Evaluation Board

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