OPA4140AIPW

Instrumentation, Op Amps, Buffer Amps Overview

The OPA4140AIPW is a quad-channel JFET-input operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 11 MHz and a slew rate of 20 V/µs. The device operates on a supply voltage range of 4.5 V to 36 V, with a maximum power supply voltage of 36 V. Input characteristics include an input bias current of ±10 pA and an input offset voltage of 220 µV. Each channel provides an output current of 36 mA. The component is housed in a 14-pin TSSOP package with dimensions of 4.40 mm width and 1.5 mm height. It supports a wide operating temperature range from -40°C to 125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• JFET input stage providing ultra-low input bias current for high-impedance signal interfacing
• Rail-to-rail output capability maximizing dynamic range in single-supply applications
• Low noise performance suitable for precision signal conditioning tasks

Instrumentation, Op Amps, Buffer Amps Applications

• Precision data acquisition systems requiring low drift
• Medical instrumentation and patient monitoring equipment
• Industrial process control sensors and transducers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'PW' confirms the 14-pin TSSOP package variant rather than other package types like SOIC or DIP. Confirm the 'A' grade designation matches required offset voltage specifications. Ensure the ordering code aligns with tube packaging requirements if applicable. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and current production status before finalizing procurement orders.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing circuits that demand low input bias currents combined with rail-to-rail output swing. The 11 MHz bandwidth supports moderate-speed precision applications. Consider thermal management within the 14-TSSOP footprint for high-density layouts. Verify that the 36 V maximum supply rating meets system voltage headroom requirements without exceeding absolute maximum ratings.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the OPAx140 family of precision amplifiers, which includes single (OPA140), dual (OPA2140), and quad (OPA4140) configurations. The family shares core electrical characteristics such as JFET inputs and low noise profiles. The OPA4140AIPW specifically integrates four independent amplifiers into a compact surface-mount package, enabling multi-channel signal processing in space-constrained designs.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct pin-compatible alternatives within the same family include OPA4140AIDR and OPA4140AIPWR. Verify package compatibility between TSSOP and SOIC variants if physical footprint constraints exist. Check datasheet revisions for any changes in electrical specifications or recommended operating conditions.