{"id":6813,"date":"2026-06-21T12:40:39","date_gmt":"2026-06-21T12:40:39","guid":{"rendered":"https:\/\/materialparts.com\/ina240a1edrq1\/"},"modified":"2026-06-21T12:40:39","modified_gmt":"2026-06-21T12:40:39","slug":"ina240a1edrq1","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/ina240a1edrq1\/","title":{"rendered":"INA240A1EDRQ1"},"content":{"rendered":"

Productos<\/h2>\n

The INA240A1EDRQ1 from Texas Instruments is an AEC-Q100 qualified, -4V to 80V bidirectional current sense amplifier with 20 V\/V gain and enhanced PWM rejection, designed for motor drive and solenoid control.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Tipo<\/td>\nAutomotive Current Sense Amplifier with Enhanced PWM Rejection<\/td>\n<\/tr>\n
Gain<\/td>\n20 V\/V<\/td>\n<\/tr>\n
Common-Mode Voltage Range<\/td>\n-4 V to +80 V<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n2.7 V to 5.5 V<\/td>\n<\/tr>\n
Offset Voltage<\/td>\n+\/-25 uV (max)<\/td>\n<\/tr>\n
Gain Error<\/td>\n0.20% (max)<\/td>\n<\/tr>\n
Offset Drift<\/td>\n250 nV\/C (max)<\/td>\n<\/tr>\n
Gain Error Drift<\/td>\n2.5 ppm\/C (max)<\/td>\n<\/tr>\n
DC CMRR<\/td>\n132 dB<\/td>\n<\/tr>\n
AC CMRR @ 50kHz<\/td>\n93 dB<\/td>\n<\/tr>\n
Bandwidth<\/td>\n400 kHz<\/td>\n<\/tr>\n
Supply Current<\/td>\n2.4 mA (max)<\/td>\n<\/tr>\n
Paquete<\/td>\nVSSOP-8 (DGK)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40C to +125C (Grade 1)<\/td>\n<\/tr>\n
AEC-Q100<\/td>\nGrade 1 qualified<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • AEC-Q100 Grade 1 qualified (-40C to +125C)<\/li>\n
  • -4V to +80V common-mode range (below ground capable)<\/li>\n
  • Enhanced PWM rejection for motor drive applications<\/li>\n
  • 132 dB DC CMRR for precision measurement<\/li>\n
  • +\/-25 uV max offset voltage (zero-drift architecture)<\/li>\n
  • 0.20% max gain error<\/li>\n
  • Functional safety documentation available<\/li>\n
  • Bidirectional current sensing with REF pins<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Motor drive current sensing with PWM<\/li>\n
    • Electronic power steering torque sensing<\/li>\n
    • Solenoid and valve current control<\/li>\n
    • Battery management system current monitoring<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The INA240A1EDRQ1 from Texas Instruments is an AEC-Q100 qualified, -4V to 80V bidirectional current sense amplifier with 20 V\/V gain and enhanced PWM rejection, designed for motor drive and solenoid control. Key Specifications Type Automotive Current Sense Amplifier with Enhanced PWM Rejection Gain 20 V\/V Common-Mode Voltage Range -4 V to +80 V […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13],"tags":[],"chip_brand":[138],"class_list":["post-6813","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"AEC-Q100 Current Sense Amp, 20V\/V, -4V to 80V CM, Enhanced PWM Rejection, VSSOP-8","date_code":"","package_case":"VSSOP-8 \/ MSOP-8 (4.9 x 3.0 x 1.0 mm)","in_stock":8765,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/ina240-q1.pdf","price":"$1.45 @ 1ku","product_introduction":"The INA240A1EDRQ1 from Texas Instruments is an automotive-qualified bidirectional current sense amplifier with a fixed gain of 20 V\/V. The device features an exceptional -4 V to +80 V common-mode voltage range that operates independently of the 2.7-5.5 V supply, enabling current measurement on high-side and low-side shunts as well as below-ground sensing during solenoid flyback periods. The enhanced PWM rejection circuitry suppresses large common-mode transients (dV\/dt) from motor drive PWM signals, eliminating output ripple artifacts that plague conventional current sense amplifiers. The zero-drift architecture delivers +\/-25 uV max offset voltage with 250 nV\/C drift, enabling accurate measurement of very small shunt voltages (down to 10 mV full-scale). AEC-Q100 Grade 1 qualification ensures reliability in automotive environments.","working_principle":"The INA240A1EDRQ1 uses a zero-drift (chopper-stabilized) architecture where the input offset and 1\/f noise are continuously corrected by modulating the input signal at a high frequency, passing it through the amplifier, and then demodulating the output. This auto-correction cycle eliminates offset drift and low-frequency noise, achieving +\/-25 uV max offset over temperature. The enhanced PWM rejection circuit consists of a specialized input filter and common-mode detection stage that identifies rapid common-mode transitions (such as PWM switching edges) and applies additional suppression during these events. Two reference pins (REF1, REF2) allow setting the output baseline voltage for bidirectional sensing: the output voltage equals VREF + Gain x (IN+ - IN-). The -4 V negative common-mode capability is achieved through a charge-pump circuit that biases the input stage below ground, accommodating the negative flyback voltage across inductive loads.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>IN-<\/td>Input<\/td>Inverting input (shunt low side)<\/td><\/tr>
      2<\/td>IN+<\/td>Input<\/td>Non-inverting input (shunt high side)<\/td><\/tr>
      3<\/td>VS<\/td>Power<\/td>Supply voltage (2.7-5.5V)<\/td><\/tr>
      4<\/td>GND<\/td>Ground<\/td>Ground<\/td><\/tr>
      5<\/td>REF2<\/td>Input<\/td>Reference voltage input 2<\/td><\/tr>
      6<\/td>REF1<\/td>Input<\/td>Reference voltage input 1<\/td><\/tr>
      7<\/td>OUT<\/td>Output<\/td>Amplifier output<\/td><\/tr>
      8<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr><\/table>","application_scenarios":"
      • Three-phase BLDC motor phase current sensing with PWM inverter rejection<\/li>
      • Electric power steering motor current feedback loop<\/li>
      • 48V battery management system high-side current measurement<\/li>
      • Solenoid driver current monitoring with negative flyback common-mode<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>INA240A2EDRQ1<\/td>VSSOP-8<\/td>50 V\/V gain version<\/td><\/tr>
        TI<\/td>INA240A3EDRQ1<\/td>VSSOP-8<\/td>100 V\/V gain version<\/td><\/tr>
        TI<\/td>INA240A4EDRQ1<\/td>VSSOP-8<\/td>200 V\/V gain version<\/td><\/tr>
        TI<\/td>INA293A1QDRQ1<\/td>VSSOP-8<\/td>Similar, -4V to 110V CM<\/td><\/tr>
        ADI<\/td>AD8418AWHRZ<\/td>SOIC-8<\/td>Automotive, 0-80V CM, 20V\/V<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6813","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=6813"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6813\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=6813"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=6813"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=6813"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=6813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}