Two engineers working in the lab

Save time and deliver your solutions faster with ADI’s new suite of precision technology signal chains. Align your applications ranging from Smart Industry to Instrumentation, Electrification to Digital Health, to exactly the right precision technology combinations.

Tailor your signal chain with confidence

ADEMO139A

RECOMMENDED FOR NEW DESIGNS

Low Noise Amplifier for Use with PCB-Based di/dt Sensors and ADEMA12x ADC

Data Sheet (Rev. Sp0) Product Selection Table
Viewing:

Overview

  • Single-supply operation: 2.97V to 3.63V
  • Three configurable gain options
    • Av setting = 30 (actual gain = 26.37)
    • Av setting = 45 (actual gain = 41.25)
    • Av setting = 60 (actual gain = 57.44)
  • Low noise
    • 7nV/√Hz at f = 45Hz to 65Hz, at Av setting = 30 (26.37)
    • 5.9nV/√Hz at f = 45Hz to 65Hz, at Av setting = 45 (41.25)
    • 5.6nV/√Hz at f = 45Hz to 65Hz, at Av setting = 60 (57.44)
  • Integrated temperature sensor

The ADEMO139A is a low-drift fully-differential programmable-gain amplifier, for use with a PCB-based di/dt current sensor and the ADEMA12x 4-channel and 7-channel ADC. An output commonmode (CM) voltage of 1.2V and supply voltage of 3.3V allows direct connection to ADEMA12x ADC.

The ADEMO139A has high gain, low noise, and excellent common- mode rejection ratio (CMRR) and power-supply rejection ratio (PSRR) specifications, which makes it ideal for high-accuracy energy measurement applications. The ADEMO139A is specified over the extended industrial temperature (−40°C to +125°C), and is available in a 8-lead LFCSP.

APPLICATIONS

  • Single-phase energy meters
  • Polyphase energy meters
  • Split-phase energy meters
  • Power quality monitoring
  • Protective devices
  • Smart breakers
  • EV chargers
  • Machine health
  • Smart power distribution units
ADEMO139A
Low Noise Amplifier for Use with PCB-Based di/dt Sensors and ADEMA12x ADC
ADEMO139A Pin Connection ADEMO139A Chip Illustration
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Request an NDA

Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA).

Request an NDA
Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Latest Discussions

No discussions on ADEMO139A yet. Have something to say?

Start a Discussion on EngineerZone®

Recently Viewed