1 Features

1• Low Offset Voltage: 10 μV (Maximum)

• Zero Drift: 0.05 μV/°C (Maximum)

• Specified Start-Up Time: 500 μs (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 Package: 2-mm × 2-mm WSON

2 Applications

• Smartphones

• Wearables

• Fitness and Healthcare Products

• Electronic Scales

• Medical Instrumentation

• Battery-Powered Instruments

• Handheld Test Equipment

• Circuit Breakers

3 Description

The OPA2333P is a CMOS operational amplifier that

uses a proprietary auto-calibration technique to

simultaneously provide very low offset voltage (10 μV,

maximum) and near-zero drift over time and

temperature. This miniature, high-precision, low

quiescent current amplifier offers 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. This device is optimized for low-voltage,

single-supply operation.

The OPA2333P also features a specified maximum

start-up time. Specified start-up time ensures highprecision

performance after 500 μs of powering the

amplifier, allowing for reliable use in dynamic supply

operation.

The OPA2333P 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 differential linearity.

The OPA2333P is available in a 2-mm × 2-mm 8-pin

WSON package and is specified for operation from

–40°C to 125°C.