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INA170 Datasheet(PDF) 1 Page - Burr-Brown (TI) |
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INA170 Datasheet(HTML) 1 Page - Burr-Brown (TI) |
1 / 13 page www.ti.com PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2001-2006, Texas Instruments Incorporated Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. FEATURES q COMPLETE BIDIRECTIONAL CURRENT MEASUREMENT CIRCUIT q WIDE SUPPLY RANGE: 2.7V to 40V q SUPPLY-INDEPENDENT COMMON-MODE VOLTAGE: 2.7V TO 60V q RESISTOR PROGRAMMABLE GAIN SET q LOW QUIESCENT CURRENT: 75 µA (typ) q MSOP-8 PACKAGE High-Side, Bidirectional CURRENT SHUNT MONITOR DESCRIPTION The INA170 is a high-side, bidirectional current shunt moni- tor featuring a wide input common-mode voltage range, low quiescent current, and a tiny MSOP-8 package. Bidirectional current measurement is accomplished by out- put offsetting. The offset voltage level is set with an external resistor and voltage reference. This permits measurement of a bidirectional shunt current while using a single supply for the INA170. Input common-mode and power-supply voltages are inde- pendent. Input voltage can range from +2.7V to +60V on any supply voltage from +2.7V to +40V. Low 10 µA input bias current adds minimal error to the shunt current. The INA170 converts a differential input voltage to a current output. This current develops a voltage across an external load resistor, setting any gain from 1 to over 100. The INA170 is available in an MSOP-8 package, and is specified over the extended industrial temperature range, –40 °C to +85°C with operation from –55°C to +125°C. APPLICATIONS q CURRENT SHUNT MEASUREMENT: Automotive, Telephone, Computers, Power Systems, Test, General Instrumentation q PORTABLE AND BATTERY-BACKUP SYSTEMS q BATTERY CHARGERS q POWER MANAGEMENT q CELL PHONES INA170 SBOS193D – MARCH 2001 – REVISED JANUARY 2006 2 1 3 OUT GND INA170 Q1 A1 A2 Q2 6 4 I S V REF V+ V SUPPLY R OS 8 5 Load R L R G1 1k Ω R G2 1k Ω R S V IN V IN + – R OS All trademarks are the property of their respective owners. |
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Similar Description - INA170_12 |
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