Description 

The OPA330 series of CMOS operational amplifiers offer precision performance at a very competitive price. These devices are members of the Zero-Drift family of amplifiers which use a proprietary autocalibration technique to simultaneously provide low offset voltage (50-μV maximum) and near-zero drift over time and temperature at only 35 μA (maximum) of quiescent current. The OPA330 family features railto-rail input and output in addition to near-flat 1/f noise, making this amplifier ideal for many applications and much easier to design into a system. These devices are optimized for low-voltage operation as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V). The OPA330 (single version) is available in the 5-pin DSBGA, 5-pin SC70, 5-pin SOT-23, and 8-pin SOIC packages. The OPA2330 (dual version) is offered in 3 mm × 3 mm, 8-pin SON, 8-pin VSSOP, and 8-pin SOIC packages. The OPA4330 is offered in the standard 14-pin SOIC and 14-pin TSSOP packages, as well as in the space-saving 14-pin VQFN package. All versions are specified for operation from –40°C to 125°C.

Features 

• Unmatched Price Performance • Low Offset Voltage: 50 µV (Maximum) • Zero Drift: 0.25 µV/°C (Maximum) • Low Noise: 1.1 µVPP, 0.1 Hz to 10 Hz • Quiescent Current: 35 µA (Maximum) • Supply Voltage: 1.8 V to 5.5 V • Rail-to-Rail Input and Output • Internal EMI Filtering • microSize Packages: DSBGA, SC70, VQFN 2 

Applications 

• Battery-Powered Instruments • Temperature Measurements • Transducer Applications • Electronic Scales • Medical Instrumentation • Handheld Test Equipment • Current Sense