OPA338NA(UMW)

The UMW OPA338 series rail-to-rail output CMOS op-amps are designed for low-cost and compact applications. This series offers low bias current, high-speed operation, high open-loop gain, and rail-to-rail output swing. They operate from a single supply as low as 2.5V with a quiescent current of only 525μA. In addition, the input common-mode voltage range includes ground, making them well-suited for single-supply operation. This series is optimized for gains of 5 or greater, easy to use, and free from the phase reversal and overload issues found in some other op-amps. Excellent performance is maintained even when the output swing reaches the specified limits. The dual-channel version features fully independent circuitry, ensuring minimal crosstalk and mutual interference even under overdrive or overload conditions.

Applications

• Battery-powered instruments
• Photodiode preamplifiers
• Medical instruments
• Test equipment
• Audio systems
• Consumer products

Key features

• Single-supply operation
• Rail-to-rail output swing
• FET input: max IB = 10 pA
• High speed: OPA337: 3 MHz, 1.2 V/μs (G = 1); OPA338: 12.5 MHz, 4.6 V/μs (G = 5)
• Operating voltage range: 2.5 V to 5.5 V
• High open-loop gain: 120 dB
• Low quiescent current: 525 μA/channel
• Available in single and dual versions