text.skipToContent text.skipToNavigation

PINA290A2QDCKRQ1

AEC-Q100, 2.7 to 110V, 800kHz, ultra-precise current sense amplifier in small (sc-70) package

Availability: 193

Packaging

Package | PIN: SOT-SC70 (DCK) | 5
Temp: Q (-40 to 125)
Package qty | Carrier: 3,000 | LARGE T&R
Qty Price
1-99 $2.21
100-249 $1.92
250-999 $1.31
1,000+ $0.99

Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C,TA
  • Wide common-mode voltage:
    • Operational voltage: 2.7 V to 110 V
    • Survival voltage: −20 V to +120 V
  • Excellent CMRR:
    • 160-dB DC
    • 85-dBAC at 50 kHz
  • Accuracy
    • Gain:
      • Gain error: 0.25% (maximum)
      • Gain drift: 10 ppm/°C (maximum)
    • Offset:
      • Offset voltage: ± 25 µV (maximum)
      • Offset drift: ±0.25 µV/°C (maximum)
  • Available gains:
    • INA290A1Q: 20 V/V
    • INA290A2Q: 50V/V
    • INA290A3Q: 100V/V
    • INA290A4Q: 200V/V
    • INA290A5Q: 500V/V
  • Bandwidth: 800 kHz
  • Slew rate: 2 V/µs
  • Quiescent current: 350 µA

All trademarks are the property of their respective owners.

Texas Instruments  PINA290A2QDCKRQ1

The INA290-Q1 is an ultra-precise current sense amplifier than canmeasure voltage drops across shunt resistors over a wide common-mode range from 2.7 V to 110 V. It is in a highly space-efficient SC-70package with a PCB footprint of only 2.00 mm × 1.25 mm. The ultra-precise current measurementaccuracy is achieved thanks to the combination of an ultra-low offset voltage of 25 µV (maximum), asmall gain error of 0.25% (maximum), and a high DC CMRR of 160 dB (typical). TheINA290-Q1 is not only designed for DC current measurement, but also for high-speedapplications (like fast overcurrent protection, for example) with a high bandwidth of 800 kHz (atgain of 20 V/V) and an 85-dB AC CMRR (at 50 kHz).

The INA290-Q1 operates from a single 2.7-V to 20-V supply and draws a350-µA supply current (typical). The INA290-Q1 is available with five gain options:20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. The low offset of the zero-drift architectureenables current sensing with low ohmic shunts as specified over the extended operating temperaturerange (−40°C to +125°C).