OPA2338EA/3K

Instrumentation, Op Amps, Buffer Amps Overview

The OPA2338EA/3K is a dual-channel, single-supply CMOS operational amplifier from the MicroAmplifier series. It features rail-to-rail output swing and operates within a supply voltage range of 2.7V to 5.5V. The device offers a gain-bandwidth product of 12.5MHz and a slew rate of 4.6V/µs at a gain of 5. Key electrical characteristics include a maximum input bias current of 10pA, an open-loop gain of 120dB, and a quiescent current of 525µA per amplifier. It is housed in an SOT-23-8 package with an operating temperature range of -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail output swing capability for maximizing dynamic range in low-voltage applications.
• FET-input architecture providing extremely low input bias current of 10pA maximum.
• High-speed performance with 12.5MHz gain-bandwidth product and 4.6V/µs slew rate.
• Space-saving MicroSIZE SOT-23-8 packaging, representing one-quarter the size of conventional SO-8 packages.

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered instruments
• Photodiode pre-amplifiers
• Medical instruments
• Test equipment
• Driving ADCs

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix '/3K' corresponds to the tape and reel quantity of 3000 units as documented in the manufacturer's Package Option Addendum. Confirm that the component status is listed as 'Active Production' rather than 'Last Time Buy'. Ensure the moisture sensitivity level (MSL) rating aligns with your assembly process requirements before placing orders.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high speed and compact form factor are required simultaneously. Unlike the unity-gain stable OPA337, the OPA338 series is optimized for gains greater than or equal to 5. If unity-gain stability is mandatory without external compensation, the OPA337 series should be considered instead. Verify that the application circuit maintains a closed-loop gain of at least 5 to ensure phase stability.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the Texas Instruments MicroAmplifier series, which focuses on low-cost, miniature solutions for space-sensitive designs. The OPA2338EA/3K is the dual-channel variant of the OPA338 single-channel amplifier. Both share identical electrical specifications but differ in channel count and physical footprint, with the dual version utilizing the SOT-23-8 package.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The OPA2337EA/3K serves as a direct pin-compatible alternative within the same package if unity-gain stability is required instead of high-speed optimization. Other family members like the OPA338UA offer different packaging options such as SOIC-8.