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Texas Instruments OPA2189IDGKT — Analog & Data Acquisition

TI OPA2189IDGKT Zero-Drift Op-Amp, 14 MHz, 1.5 µV Offset

MPNOPA2189IDGKT
End of Life

Texas Instruments Zero-Drift series, OPA2189IDGKT, dual zero-drift op-amp, 14 MHz gain bandwidth, 20 V/µs slew rate, rail-to-rail output, 4.5 V to 36 V supply, -40°C to 125°C, 8-VSSOP package.

$5.19Ref. price · indicative, final on quote
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHSROHS3 Compliant
SeriesZero-Drift
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

OPA2189IDGKT specifications
ParameterValue
SeriesZero-Drift
Output typeRail-to-Rail
MountingSurface Mount
Amplifier typeZero-Drift
Voltage - input offset1.5 µV
Voltage - supply span4.5 V
Current - supply1.3mA (x2 Channels)
Current - input bias70 pA
Current - output (Channel)65 mA
Operating temperature-40°C ~ 125°C (TA)
Gain bandwidth product14 MHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate20V/µs
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Number of circuits2

Product details

Precision dual op-amp for low-drift signal chains

Rail-to-rail output and a 20 V/µs slew rate let it handle fast transients in precision DC and low-frequency AC paths. Supply span from 4.5 V to 36 V covers common industrial and automotive rails without a secondary regulator. The 8-VSSOP package fits tight mixed-signal boards where two channels need matched drift performance.

1.5 µV offset — the precision floor for sensor front-ends

A 1.5 µV typical input offset voltage and 70 pA input bias current keep error low with high source impedances.

14 MHz GBW at 1.3 mA per channel — bandwidth without a power penalty

The 14 MHz gain-bandwidth product and 1.3 mA supply current per channel suit multi-channel data-acquisition boards with tight per-channel power budgets.

Rated for -40°C to 125°C ambient, the OPA2189IDGKT accepts a 4.5 V to 36 V supply span. Surface-mount 8-VSSOP package fits compact PCBs.

No direct second-source alternate is listed in the TI documentation, but the TLV9362IDDFR (10.6 MHz, 400 µV offset) is a general-purpose dual that shares the same 4.5 V to 36 V supply range and -40°C to 125°C temperature grade, though its higher offset and lower bandwidth make it a functional alternative only where the 1.5 µV precision floor is not critical.

Frequently asked questions

Is OPA2189IDGKT suitable for precision sensing?

Yes. The 1.5 µV typical input offset voltage and 70 pA input bias current make it well suited for bridge, thermocouple, and current-sense front-ends where drift over temperature must stay under a few microvolts.

What is the closest functional second-source — TLV9362IDDFR?

The TLV9362IDDFR is a general-purpose dual op-amp with a 10.6 MHz GBW and 400 µV offset, sharing the same 4.5 V to 36 V supply range and -40°C to 125°C temperature grade. It is a functional alternative only where the OPA2189IDGKT's 1.5 µV precision floor is not required.