OPA345NA/3KG4

Instrumentation, Op Amps, Buffer Amps Overview

The OPA345NA/3KG4 is a single-channel, low-power operational amplifier from Texas Instruments. It features rail-to-rail input and output capabilities, supporting supply voltages between 2.7 V and 5.5 V. Key electrical parameters include a gain-bandwidth product of 3 MHz, a slew rate of 2 V/us, and an input bias current of 10 pA. The device operates with a supply current of 250 uA and maintains a common-mode rejection ratio of 66 dB. It is housed in a SOT-23-5 package and functions within a temperature range of -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input and output operation for maximum dynamic range
• Low power consumption suitable for battery-powered applications
• High input impedance with ultra-low input bias current

Instrumentation, Op Amps, Buffer Amps Applications

• Portable instrumentation systems
• Battery-operated measurement devices
• Signal conditioning circuits

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the complete part number including the suffix to ensure correct packaging and compliance status. Confirm that the specific revision matches design requirements. Check manufacturer documentation for moisture sensitivity levels and recommended soldering profiles. Ensure compatibility with existing board layouts and thermal management strategies before finalizing procurement decisions.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when low power consumption and rail-to-rail performance are required in a small footprint. The 3 MHz bandwidth suits moderate-speed signal processing tasks. Consider the SOT-23-5 package constraints for PCB layout. Evaluate if the 250 uA supply current meets strict energy budgets compared to higher-performance alternatives.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the MicroAmplifier series by Texas Instruments, designed for general-purpose analog signal processing. It complements other members like the OPA340 and OPA341 within the same family. The series emphasizes efficiency and compact integration for modern electronic designs requiring reliable amplification in constrained spaces.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Check for direct pin-compatible substitutes within the same family, such as the OPA340 or OPA341, ensuring their specific electrical characteristics align with the original design intent.