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Texas Instruments INA821IDGKT — Logic ICs
Texas Instruments

INA821IDGKT Instrumentation Amplifier, 4.7 MHz, 40 µV Offset

MPNINA821IDGKT
End of Life

Texas Instruments INA821IDGKT, single instrumentation amplifier, 4.7 MHz bandwidth, 2 V/µs slew rate, 40 µV input offset, 600 µA supply, 4.5 V to 36 V supply, -40°C to 125°C, 8-VSSOP package.

$6.88Ref. price · indicative, final on quote
INA821IDGKT datasheet
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
StockContact for availability
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

INA821IDGKT Technical Specifications
ParameterValue
Mounting typeSurface Mount
Amplifier typeInstrumentation
Voltage - input offset40 µV
Voltage - supply span4.5 V
Current - supply600µA
Current - input bias150 pA
Current - output (Channel)20 mA
Operating temperature-40°C ~ 125°C
-3db bandwidth4.7 MHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate2V/µs
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Number of circuits1

Product details

It delivers a 4.7 MHz bandwidth with a 2 V/µs slew rate, a 40 µV input offset voltage, and draws 600 µA supply current.

The 40 µV input offset voltage (max) and 150 pA input bias current let the INA821 resolve microvolt-level signals from high-impedance sources like strain gauges or thermocouples without significant loading error. The 4.7 MHz bandwidth supports moderate-speed data acquisition, while the 2 V/µs slew rate handles fast transients on the input common-mode. For a 10 V full-scale bridge output, the offset contribution is roughly 0.0004% of span — well inside a 16-bit system's noise floor.

Single-supply operation and output drive

The INA821 works from a single supply as low as 4.5 V, making it drop-in compatible with 5 V industrial logic rails and 3.6 V battery-backed systems.

Frequently asked questions

Are there any alternatives to INA821IDGKT?

Within the same family, the INA821IDGKR (8-SOIC) offers identical electrical specs in a different footprint. For a higher-bandwidth option, the INA826 provides 1 MHz bandwidth with similar offset and supply range, but verify pin compatibility for your layout.