OPA333

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design OPA333, OPA2333 SBOS351E – MARCH 2006 – REVISED DECEMBER 2015 OPAx333 1.8-V, microPower, CMOS Operational Amplifiers, Zero-Drift Series 1 Features 1 Low Offset Voltage: 10 μV (Maximum) Zero Drift: 0.05 μV/°C (Maximum) 0.01-Hz to 10-Hz Noise: 1.1 μVPP Quiescent Current: 17 μA Single-Supply Operation Supply Voltage: 1.8 V to 5.5 V Rail-to-Rail Input/Output microSize Packages: SC70 and SOT23 2 Applications Transducers Temperature Measurements Electronic Scales Medical Instrumentation Battery-Powered Instruments Handheld Test Equipment 3 Description The OPAx333 series of CMOS operational amplifiers use a proprietary auto-calibration technique to simultaneously provide very low offset voltage (10 μV, maximum) and near-zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high-impedance inputs that have a common-mode range 100 mV beyond the rails, and rail-to-rail output that swings within 50 mV of the rails. Single or dual supplies as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V) can be used. These devices are optimized for lowvoltage, single-supply operation. The OPAx333 family offers excellent CMRR without the crossover associated with traditional complementary input stages. This design results in superior performance for driving analog-to-digital converters (ADCs) without degradation of...