Texas Instruments INA4180, User Manual, Page: 3 / 18

www.ti.com
Overview
3 SBOU189 – November 2017
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
INA4180-INA4181 Evaluation Module User's Guide
1 Overview
The INA4180 family of current-shunt monitors (also called current-sense amplifiers) can sense drops
across shunts at common-mode voltages from –0.2 V to +26 V, independent of the supply voltage. Four
fixed gains are available: 20 V/V, 50 V/V, 100 V/V, and 200 V/V. The INA4181 family has the same
capabilities as the INA4180 family but with the addition of reference pins on each channel that enables
bidirectional current measurements. These devices operate from a single 2.7-V to 5.5-V power supply,
drawing a maximum of 260
μ A of supply current per amplifier channel.
The INA4180 devices are currently available in a TSSOP(14) and the INA4181 devices are available in a
TSSOP(20) surface-mount packages.
Table 1 lists the available gain options.
Table 1. INA418x Device Summary
PRODUCT GAIN
INA4180A1, INA4181A1 20
INA4180A2, INA4181A2 50
INA4180A3, INA4181A3 100
INA4180A4, INA4181A4 200
1.1 INA4180-4181EVM Kit Contents
Table 2 lists the contents of the INA4180-4181EVM kit. Contact the nearest Texas Instruments Product
Information Center if any component is missing. TI highly recommends checking the INA4180 family
product folders on the TI website at www.ti.com for further information regarding these products.
Table 2. INA4180-4181EVM Kit Contents
ITEM QUANTITY
INA4180-4181EVM Test Board 1
1.2 Related Documentation From Texas Instruments
This user guide provides information regarding TI's integrated circuits used in the assembly of the
INA4180-4181EVM. See also the device data sheets:
Table 3. Related Documentation
DOCUMENT LITERATURE NUMBER
INA4180 Product data sheet SBOS741
INA4181 Product data sheet SBOS793
2 INA4180-4181EVM Hardware
The INA4180 is a current sense integration solution that provides ease of use and high performance. The
INA4181 has the same capabilities as the INA4180 but with the addition of reference pins that enable
bidirectional current measurements. The INA4180-4181EVM 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 INA4180-4181EVM consists of one PCB
with an option to snap apart eight individual PCBs — one for each of the eight devices (INA4180A1,
INA4180A2, INA4180A3, INA4180A4, INA4181A1, INA4181A2, INA4181A3 and INA4181A4).