MAXREFDES30#: 8-Ch, 16-Bit AFE

Summary

Three-phase power measurement applications require multiple analog inputs for voltage and current measurements on each line of the three-phase system. A power monitoring system must sample all of the analog inputs simultaneously to accurately calculate the instantaneous power consumption.

The Petaluma (MAXREFDES30#) subsystem reference design provides eight high-speed, 250ksps, 16-bit simultaneous-sampling analog input channels that accept ±10V input signals.

The Petaluma design utilizes two quadruple ultra-precision, ultra-low-noise input buffers (MAX44252); an 8-channel, 16-bit simultaneous-sampling ADC (MAX11046B); an ultra-high precision 4.096V voltage reference (MAX6126); and regulated +10V, -10V, and +5V power rails (MAX1659, MAX765/LM337, MAX8881). In addition to three-phase power measurement applications, this subsystem also performs well in any application that requires multiple simultaneous sampling of analog inputs, such as multiphase motor control and industrial vibration sensing.

Specifications

Manufacturer Analog Devices Inc./Maxim Integrated
Category Wired Communication
Sub-Category Analog Front Ends (AFE)
Eval Board Part Number MAXREFDES30#-ND
Eval Board Supplier Analog Devices Inc./Maxim Integrated
Eval Board Normally In Stock
Input Type ± 10 V
Input Channels 8
Resolution (Bits) 16 Bit
Sampling Rate 250 kSPS
Analog Outputs - N/A
Analog Output Type - N/A
Features Device Drivers
Component Count + Extras 104 + 35
Design Author Maxim Integrated Products
Main I.C. Base Part MAX6126
Date Created By Author 2014-04
Date Added To Library 2014-05

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