Texas Instruments NA210-214EVM, User Manual

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1 Introduction and Overview
1.1 INA210-214
1.2 INA210-214EVM
Introduction and Overview
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The INA210-214 devices are voltage output, high-side measurement, bi-directional, zero-drift current shunt
monitors. This family of devices has gains that range from 50V/V to 1000V/V. The voltage developed
across the device inputs is amplified by the corresponding gain of the specific device and is presented at
the output pin. These devices can sense voltage drops across shunts at common-mode voltages from
–0.3V to 26V, independent of supply voltages. These devices operate with supply voltages between 2.7V
and 26V and draw a maximum of 100
µ
A. The low offset of the zero-drift architecture enables current
sensing with maximum drops across the shunt as low as 10mV full-scale.
The INA210-214 devices are currently available in an SC70 surface-mount package. Table 1 summarizes
the available device options.
Table 1. INA210-214 Device Summary
Product Gain
INA210 200
INA211 500
INA212 1000
INA213 50
INA214 100
The INA210-214EVM is intended to provide basic functional evaluation of this device family. The fixture
layout is not intended to be a model for the target circuit, nor is it laid out for electromagnetic compatibility
(EMC) testing.
The layout of the INA210-214EVM printed circuit board (PCB) is designed to provide the following
features:
•
Easy handling of the small package; a mechanical drawing of the recommended land pattern is found
at the end of the
product data sheet .
•
Easy access to all device pins
•
Space for optional input filtering capacitors and resistors as well as a prototype area for additional user
defined circuitry
•
Space for shunt resistors of various footprints
•
Multiple input signal options
•
Evaluation of all gain options through provided device boards as well as a location to solder a test
device directly onto the board
The INA210-214EVM allows the user to install a shunt resistor, and then connect both the common-mode
voltage and load to develop the input voltage, or omit the shunt resistor and apply a differential voltage
directly to the device input. This flexibility allows a user to test the device operation in a simulated manner
as well as an actual application.
Refer to the INA210-214 product data sheet for comprehensive information about the INA210-214 family
of devices.
INA210-214EVM User's Guide 2 SBOU065 – August 2008
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