ADuM7811

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Isolated ADC with Sigma-Delta Modulated Bit Stream Output

产品模型: 2

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概述

5MHz to 50MHz main clock input frequency
16 bits, no missing codes
Full-scale analog input voltage range: ±320mV
SNR: 88dB typical
High isolation common-mode transient immunity: 200kV/μs minimum
Offset drift vs. temperature: ±0.60μV/°C maximum
Gain error drift vs. temperature: ±28ppm/°C maximum
Integrated digital isolator

Operating temperature range: −40°C to +125°C
Wide-body SOIC
- 8-lead SOIC_IC
Safety and regulatory approvals
- UL 1577 (pending)
  - V_ISO = 5700V rms for 1minute
- IEC/EN/CSA 62368-1 (pending)
- IEC/CSA 61010-1 (pending)
DIN EN IEC 60747-17 (VDE 0884-17) (pending)
V_IORM = 2121V peak

The ADuM7811 is a high-performance isolated analog-to-digital converter (ADC) with a 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 operates from a 4.0V to 5.5V power supply range (high-side supply voltage, V_DD1) and accepts a pseudodifferential input signal of ±250mV (±320mV full-scale). The pseudodifferential input is ideally suited for shunt-resistor current monitoring in high voltage applications where galvanic isolation is required.

The analog input is continuously sampled by a high-performance analog modulator and converted to a pulse density modulation digital output stream with a data rate of up to 51MHz. The analog input can be reconstructed with an appropriate sinc3 digital filter to achieve an 88dB signal-to-noise ratio (SNR) at 195.3kSPS with a 256 decimation rate and a 50MHz input clock. The serial input and output operates from a 3V to a 5.5V supply (controller-side supply voltage, V_DD2).

The serial interface is digitally isolated. High speed complementary metal-oxide semiconductor (CMOS) technology, combined with monolithic transformer technology, results in the on-chip isolation providing outstanding performance characteristics, superior to alternatives such as optocoupler devices.

The ADuM7811 device is available in a 8-lead SOIC_IC and has an operating temperature range of −40°C to +125°C.

APPLICATIONS

Shunt current monitoring
AC motor controls
Power and solar inverters
Wind turbine inverters
Analog-to-digital and opto-isolator replacement

产品模型: 2

参考资料

数据手册 1

ADuM7811: Isolated ADC with Sigma-Delta Modulated Bit Stream Output Data Sheet (Rev.0) 04/27/2026

用户手册 1

EVAL-ADuM7811 User Guide: Evaluating the ADuM7811, 8-Lead SOIC 50MHz Isolated ADC with Sigma-Delta Modulated Bit Stream Output (Rev.0) 04/27/2026

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产品型号	引脚/封装图-中文版	文档	CAD 符号，脚注和 3D模型
ADUM7811-8BRIZ	SOIC_IC	Material Declaration Reliability Report 资料包	Ultra Librarian SamacSys
ADUM7811-8BRIZ-RL	SOIC_IC	Material Declaration Reliability Report 资料包	Ultra Librarian SamacSys

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Evaluating the ADuM7811, 8-Lead SOIC 50MHz Isolated ADC with Sigma-Delta Modulated Bit Stream Output

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特性和优点

Simplified evaluation of the ADuM7811 isolated ADC with Σ-Δ modulated bit stream output
Footprint for 6mm × 10mm, 8-lead SOIC_IC package with >8.0mm creepage and clearance
On-board power supplies
On-board ADuM6028-5 ISO DC-DC converter and ADP7142 low noise CMOS LDO regulator with jumper options for simplified evaluation in multiple supply configurations
SMA connectors for MDAT output signal, MCLK input and V_IN+, V_IN− analog input signals
Resistors and footprints for termination
Test points for measuring all signals
Standalone capability
ZedBoard™ controller board compatible
PC-based software for control and data analysis

产品详情

The EV-ADuM7811-8FMCZ is a fully-featured evaluation board that allows the user to evaluate all features of the ADuM7811 isolated ADC with Σ-Δ modulated bit stream output. The ZedBoard Zynq-7000 controller board controls the EV-ADuM7811-8FMCZ by the J9 connector and through the USB port of a PC using the ACE Software. The ACE Software is available to download on the ACE Software page.

On-board components include an isolated, 5kV, isoPower^® DC‑to- DC converter (the ADuM6028-5), a 5V, low noise, low dropout (LDO) regulator (the ADP7104), and a 200mA, 40V, low noise, LDO regulator (the ADP7142).

This user guide explains how to use the EV-ADuM7811-8FMCZ to evaluate the ADuM7811. The ADuM7811 is a high-performance isolated analog-to-digital converter (ADC) with a 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 operates from a 4.0V to 5.5V power supply range (high-side supply voltage, V_DD1) and accepts a pseudodifferential input signal of ±250mV (±320mV full-scale). The pseudodifferential input is ideally suited for shunt-resistor current monitoring in high voltage applications where galvanic isolation is required.

The analog input is continuously sampled by a high-performance analog modulator and converted to a pulse density modulation digital output stream with a data rate of up to 50MHz. The analog input can be reconstructed with an appropriate sinc3 digital filter to achieve an 88dB signal-to-noise ratio (SNR) at 195.3kSPS with a 256 decimation rate and a 50MHz input clock. The serial input and output operates from a 3V to a 5.5V supply (controller-side supply voltage, V_DD2).

The serial interface is digitally isolated. The on-chip isolation provides performance characteristics superior to alternatives, such as optocoupler devices, due to high speed CMOS technology combined with monolithic transformer technology. The ADuM7811 has an operating temperature range of −40°C to +125°C. Full specifications on the ADuM7811 are available in the ADuM7811 data sheet available from Analog Devices, Inc., and must be consulted with this user guide when using the EV-ADuM7811-8FMCZ evaluation board.

资料

EVAL-ADuM7811 User Guide: Evaluating the ADuM7811, 8-Lead SOIC 50MHz Isolated ADC with Sigma-Delta Modulated Bit Stream Output (Rev.0)
2026/4/27