Description

The OPAx348 series of amplifiers are single-supply,low-power, CMOS operational amplifiers. Featuring an extended bandwidth of 1 MHz, and a supply current of 45 µA, the OPAx348 series is useful for low-power applications on single supplies of 2.1 V to

5.5 V.

A low supply current of 45 µA and an input bias current of 0.5 pA, makes the OPAx348 series an optimal candidate for low-power applications such as smoke detectors and other high-impedance sensors.

The OPA348 is available in the miniature 5-pin SC70 (SOT), 5-pin SOT-23 (SOT), and 8-pin SO (SOIC) packages. The OPA2348 is available in 8-pin SOT-23 (SOT) and 8-pin SO (SOIC) packages, and the OPA4348 is offered in space-saving 14-pin TSSOP

and 14-pin SO (SOIC) packages. The extended temperature range of –40°C to +125°C over all supply voltages offers design flexibility.

Features

• Low IQ: 45 µA (Typical)

• Rail-To-Rail Input and Output

• Single Supply: 2.1 V to 5.5 V

• Input Bias Current: 0.5 pA

• Micro Size Packages:

– 5-Pin SC70

– 8-Pin SOT-23

– 14-Pin TSSOP

• Excellent Bandwidth-to-Power Consumption

Trade-off

• Number of Channels:

– OPA348: 1

– OPA2348: 2

– OPA4348: 4

Applications

• Portable Equipment

• Battery-Powered Equipment

• Smoke Alarms

• CO Detectors

• Medical Instrumentation