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Texas Instruments INA4290A2IRGVR — Memory (DRAM / SRAM / Flash / EEPROM)
Texas Instruments

INA4290A2IRGVR Current Sense Amplifier, 4-Ch, 1.1 MHz

MPNINA4290A2IRGVR
End of Life

Texas Instruments INA4290A2IRGVR current sense amplifier, 4-circuit, 1.1 MHz gain bandwidth, 6 µV input offset, 2.7-20 V supply, 16-VQFN exposed pad, tape and reel.

$7.79Ref. price · indicative, final on quote
INA4290A2IRGVR datasheet
Packaging16-VQFN Exposed Pad
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

INA4290A2IRGVR Technical Specifications
ParameterValue
Mounting typeSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset6 µV
Voltage - supply span2.7 V
Current - supply1.25mA (x4 Channels)
Current - input bias20 µA
Operating temperature-40°C ~ 125°C (TA)
Gain bandwidth product1.1 MHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate2V/µs
Case16-VQFN Exposed Pad
Number of circuits4

Product details

Quad current sense with 1.1 MHz bandwidth

The INA4290A2IRGVR: Each channel draws 1.25 mA from the supply, keeping the total quiescent current under 5 mA for the quad package — relevant for multi-rail monitoring in power-constrained designs.

Offset and bias: what they mean for shunt selection

With a 20 µA bias current flowing into the shunt resistor, the voltage drop across the shunt adds a systematic error; for a 10 mΩ shunt this is 0.2 µV, negligible against the 6 µV offset, but for higher shunt values it becomes a factor in the total error budget.

Frequently asked questions

How does INA4290A2IRGVR compare to INA254A1IPWAR?

The INA254A1IPWAR is a single-channel zero-drift current sense amplifier with 350 kHz bandwidth and 2.4 V/µs slew rate, while the INA4290A2IRGVR offers four channels at 1.1 MHz bandwidth with 2 V/µs slew rate. The INA254A1IPWAR's zero-drift topology gives lower offset drift over temperature, but the INA4290A2IRGVR provides higher bandwidth and four independent channels in one package — they are not pin-compatible and serve different BOM positions.