ADuM7812

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50MHz Isolated ADC with Sigma-Delta Modulated Bit Stream Output

数据手册 (Rev. 0) 产品选型表

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: ±64mV
SNR: 82.4dB typical
High isolation common-mode transient immunity: 200kV/μs minimum
Offset drift vs. temperature: ±0.70μV/°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
  - V_ISO = 5700V RMS for 1minute
- IEC/EN/CSA 62368-1 (pending)
- IEC/CSA 60601-1 (pending)
- IEC/CSA 61010-1 (pending)
DIN EN IEC 60747-17 (VDE 0884-17) (pending)
- V_IORM = 2121V peak

产品模型: 2

参考资料

数据手册 1

ADuM7812: 50MHz Isolated ADC with Sigma-Delta Modulated Bit Stream Output Data Sheet (Rev.0) 07/31/2026

用户手册 1

EVAL-ADuM7812 User Guide: Evaluating the ADuM7812, 8-Lead SOIC 50MHz Isolated ADC with Sigma-Delta Modulated Bit Stream Output (Rev.0) 07/31/2026

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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
ADUM7812-8BRIZ	SOIC_IC	Material Declaration Reliability Report 资料包	Ultra Librarian SamacSys
ADUM7812-8BRIZ-RL	SOIC_IC	Material Declaration Reliability Report 资料包	Ultra Librarian SamacSys

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Evaluating the ADuM7812, 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 ADuM7812 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-ADuM7812-8FMCZ is a fully-featured evaluation board that allows the user to evaluate all features of the ADuM7812 isolated analog-to-digital converter (ADC) with Σ-Δ modulated bit stream output. The ZedBoard Zynq-7000 controller board controls the EV-ADuM7812-8FMCZ 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-ADuM7812-8FMCZ to evaluate the ADuM7812. The ADuM7812 is a high-performance isolated 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 pseudodiffer-ential input signal of ±50mV (±64mV full-scale). The pseudodiffer-ential 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 84dB 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).

Please see the User Guide for the full description.