Analog Devices AD7405 16-Bit Isolated Sigma-Delta Modulator Datasheet

About this manual

The AD7405 is a high-performance second-order Sigma-Delta modulator featuring an integrated digital isolator using iCoupler technology. It converts analog input signals into high-speed single-bit LVDS data streams, designed specifically for applications requiring current isolation in high-voltage environments such as shunt current monitoring.

The device operates with a differential input voltage range of ±250 mV (full scale ±320 mV) and supports an external clock input rate from 5 MHz to 20 MHz. It is housed in a 16-lead wide-body SOIC package and offers a maximum working isolation voltage of 1250 VPEAK, ensuring safety in industrial and power applications.

What's inside

• Product Features
• Specifications
• Timing Specifications
• Package Characteristics
• Isolation and Safety Features
• Regulatory Information
• Absolute Maximum Ratings
• ESD Warning
• Pin Configuration
• Typical Performance Parameters

Specifications

Frequently asked questions

What is the typical signal-to-noise ratio (SNR) of the AD7405?

The typical SNR is 88 dB.

What is the maximum operating temperature range for this device?

The AD7405 operates within a temperature range of −40°C to +125°C.

What is the maximum input clock frequency supported by this modulator?

The external clock input rate can go up to 20 MHz.

How much differential voltage does this device accept at its analog inputs?

It accepts a full-scale range of ±320 mV, with rated performance for ±250 mV.