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
Resolution (Bits)	16 Bit
Input Type	± 10 V
Features	8-channel inputs 16-bit resolution 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