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PINA2181A3IDGSR Datasheet(PDF) 1 Page - Texas Instruments |
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PINA2181A3IDGSR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 43 page INA4181 (quad-channel) INA4181 (quad-channel) INA2181 (dual-channel) INA181 (single-channel) Power Supply, VS 2.7 V to 5.5 V ADC Microcontroller Bus Voltage, VCM Up To 26 V RSENSE VS Load CBYPASS 0.1 µF GND IN± IN+ OUT REF + ± Copyright © 2017, Texas Instruments Incorporated Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA. INA181, INA2181, INA4181 SBOS793B – APRIL 2017 – REVISED NOVEMBER 2017 INAx181 Bidirectional, Low- and High-Side Voltage Output, Current-Sense Amplifiers 1 1 Features 1 • Common-Mode Range (VCM): –0.2 V to +26 V • High Bandwidth: 350 kHz (A1 Devices) • Offset Voltage: – ±150 µV (Max) at VCM = 0 V – ±500 µV (Max) at VCM = 12 V • Output Slew Rate: 2 V/µs • Bidirectional Current-Sensing Capability • Accuracy: – ±1% Gain Error (Max) – 1-µV/°C Offset Drift (Max) • Gain Options: – 20 V/V (A1 Devices) – 50 V/V (A2 Devices) – 100 V/V (A3 Devices) – 200 V/V (A4 Devices) • Quiescent Current: 260 µA Max (INA181) 2 Applications • Motor Control • Battery Monitoring • Power Management • Lighting Control • Overcurrent Detection • Solar Inverters 3 Description The INA181, INA2181, and INA4181 (INAx181) current sense amplifiers are designed for cost- optimized applications. These devices are part of a family of bidirectional, current-sense amplifiers (also called current-shunt monitors) that sense voltage drops across current-sense resistors at common- mode voltages from –0.2 V to +26 V, independent of the supply voltage. The INAx181 family integrates a matched resistor gain network in four, fixed-gain device options: 20 V/V, 50 V/V, 100 V/V, or 200 V/V. This matched gain resistor network minimizes gain error and reduces the temperature drift. These devices operate from a single 2.7-V to 5.5-V power supply. The single-channel INA181 draws a maximum supply current of 260 µA; whereas, the dual-channel INA2181 draws a maximum supply current of 450 µA, and the quad-channel INA4181 draws a maximum supply current of 900 µA. The INA181 is available in a 6-pin, SOT-23 package, the INA2181 is available in an 10-pin VSSOP package, and the INA4181 is available in a 20-pin TSSOP package. All device options are specified over the extended operating temperature range of –40°C to +125°C. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) INA181 SOT-23 (6) 2.90 mm × 1.60 mm INA2181(2) VSSOP (10) 3.00 mm × 3.00 mm INA4181(2) TSSOP (20) 6.50 mm × 4.40 mm (1) For all available packages, see the package option addendum at the end of the datasheet. (2) INA2181 and INA4181 are preview devices. Typical Application Circuit |
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