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Texas Instruments OPA4330AIDR — Analog & Data Acquisition

TI OPA4330AIDR quad zero-drift op-amp, 350 kHz, 8 µV offset

MPNOPA4330AIDR
End of Life

Texas Instruments OPA4330AIDR, CMOS zero-drift quad operational amplifier, 350 kHz gain-bandwidth, 8 µV input offset, 0.16 V/µs slew rate, rail-to-rail output, 1.8 V to 5.5 V supply, 14-SOIC package, -40°C to 125°C.

$3.94Ref. price · indicative, final on quote
Packaging14-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

OPA4330AIDR specifications
ParameterValue
Output typeRail-to-Rail
MountingSurface Mount
Amplifier typeCMOS, Zero-Drift
Voltage - input offset8 µV
Voltage - supply span5.5 V
Current - supply21µA (x4 Channels)
Current - input bias200 pA
Current - output (Channel)5 mA
Operating temperature-40°C ~ 125°C
Gain bandwidth product350 kHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate0.16V/µs
Case14-SOIC (0.154\", 3.90mm Width)
Number of circuits4

Product details

8 µV offset, zero-drift — the precision DC workhorse

The 8 µV input offset voltage and zero-drift architecture mean the offset doesn't wander with temperature or time, so you skip the external trimming pot or calibration step in production. With 350 kHz gain-bandwidth and a 0.16 V/µs slew rate it's clearly a slow, stable loop amp — think current-sense amplifiers, thermocouple buffers, bridge transducer front-ends, and battery-monitoring dividers. The 21 µA supply current per channel (84 µA total for all four) keeps it viable for always-on sensor nodes and portable instruments.

Rail-to-rail output swing gives you the full headroom on low-voltage rails — important when the ADC reference is the same 3.3 V rail and every millivolt of swing counts.

Package and temperature grade — board-fit and environment

The tape-and-reel delivery suits automated pick-and-place, and the ROHS3 compliance keeps it clear of the exemption-expiry issues that plague older halogenated finishes.

Texas Instruments continues to manufacture this part, so the BOM line doesn't carry the obsolescence risk you'd accept on a legacy precision amp.

Frequently asked questions

Can I use OPA4330AIDR as a drop-in replacement for other quad zero-drift op-amps?

Pin compatibility depends on the specific alternative's pinout. The OPA4330AIDR uses the standard 14-SOIC quad op-amp pinout (outputs on pins 1, 7, 8, 14; inverting inputs on pins 2, 6, 9, 13; non-inverting inputs on pins 3, 5, 10, 12; V+ on pin 4; V- on pin 11). Check the target part's datasheet for pin-for-pin match. The OPA4374AIPWT is a 6.5 MHz CMOS quad in the same package but lacks zero-drift — its 1 mV typical offset is 125× worse, so it's not a functional replacement for precision DC applications.

What is the slew rate of OPA4330AIDR?

The slew rate is 0.16 V/µs. This is consistent with the 350 kHz gain-bandwidth product and confirms the part is intended for low-frequency precision signals, not fast-slewing waveforms like video or high-speed data acquisition.