Precision dual op-amp for low-frequency sensor conditioning
The Texas Instruments OPA2330AID is a dual CMOS zero-drift operational amplifier in an 8-SOIC package. Its 350 kHz gain-bandwidth product and 0.16 V/µs slew rate suit it for precision DC and low-frequency signal chains — thermocouple amplifiers, bridge transducers, and photodiode front-ends where offset drift over temperature matters more than raw speed. The 8 µV input offset and 200 pA input bias keep errors low without trimming. Rail-to-rail output swings to within millivolts of the supply rails, preserving dynamic range on a 1.8 V to 5.5 V single supply. Supply current is 21 µA per channel, making it a fit for loop-powered or battery-operated instruments.
8 µV offset — what it means for the BOM
The 8 µV maximum input offset voltage is the headline precision spec. The zero-drift architecture keeps offset drift low across the -40°C to 125°C range.
Supply range and rail-to-rail output
Operating from 1.8 V to 5.5 V, the OPA2330AID runs directly off a single Li-ion cell or a regulated rail. The rail-to-rail output stage swings to within a few millivolts of both rails.
Package and temperature grade
Housed in an 8-SOIC package (3.90 mm body width), the OPA2330AID is a surface-mount part for standard PCB assembly. The -40°C to 125°C operating temperature range qualifies it for industrial motor drives and outdoor telecom equipment.