TLC2254QDG4

Instrumentation, Op Amps, Buffer Amps Overview

The TLC2254QDG4 is a quad operational amplifier from the Advanced LinCMOS family, featuring rail-to-rail output performance. It operates on supply voltages ranging from ±2.2 V to ±8 V (4.4 V to 16 V total). Key electrical parameters include a maximum input offset voltage of 1500 µV at 25°C and 1750 µV across the full temperature range. The device exhibits a typical input bias current of 60 pA and an equivalent input noise voltage of 19 nV/√Hz at 1 kHz. Supply current is typically 35 µA per channel. It supports an operating free-air temperature range of -40°C to 125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail output swing capability for increased dynamic range in single- or split-supply applications
• Very low power consumption with micropower operation suitable for battery-powered designs
• Low noise performance significantly improved over previous CMOS generations
• High input impedance with low input bias current

Instrumentation, Op Amps, Buffer Amps Applications

• Small-signal conditioning for high-impedance sources such as piezoelectric transducers
• Hand-held monitoring equipment
• Remote-sensing applications
• Interfacing with analog-to-digital converters (ADCs)

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the Q suffix indicates automotive qualification status and confirm the DG4 package designation corresponds to the SOIC-14 form factor. Ensure the component meets specific environmental requirements for the intended operating temperature range of -40°C to 125°C. Cross-reference datasheet revisions to confirm parameter consistency.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing circuits requiring low power dissipation combined with rail-to-rail output capabilities. It serves as a direct upgrade for legacy designs using TLC27L2/L4 or TS27L2/L4 devices, offering superior output dynamic range and lower noise. Consider the quad configuration for space-constrained multi-channel signal processing tasks.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the TLC225x family of very low-power operational amplifiers manufactured by Texas Instruments. The family includes dual (TLC2252) and quad (TLC2254) variants. The Q suffix denotes availability for automotive high-reliability applications, distinguishing it from standard commercial or industrial grade parts within the same functional family.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

TLC2254CDG4

Instrumentation, Op Amps, Buffer Amps FAQ

Does the TLC2254QDG4 support both single-supply and split-supply operation?

Yes, the device is fully specified for both single-supply and split-supply configurations.

What is the typical input bias current for this amplifier?

The typical input bias current is 1 pA, with a maximum specification of 60 pA at 25°C.