TSZ121ICT

Instrumentation, Op Amps, Buffer Amps Overview

The TSZ121ICT is a single-channel precision operational amplifier from the TSZ12x series by STMicroelectronics. It features a CMOS architecture with rail-to-rail input and output capabilities, designed for low-voltage operation between 1.8 V and 5.5 V. The device offers a gain-bandwidth product of 400 kHz and a maximum supply current of 40 µA at 5 V. Key electrical specifications include a maximum input offset voltage of 1 µV, an input bias current of 50 pA, and a conversion rate of 170 mV/µs. It provides high common-mode rejection ratio (CMRR) of 112 dB and operates within an extended temperature range of -40 °C to +125 °C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Very high accuracy with virtually zero drift characteristics
• Rail-to-rail input and output performance
• Ultra-low input bias current for minimal signal loading

Instrumentation, Op Amps, Buffer Amps Applications

• Sensor interfaces requiring high precision
• Battery-powered portable applications
• Low-power signal conditioning circuits

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix ICT corresponds to the SC-70-5 surface-mount package when sourcing. Confirm that the component meets AEC-Q100 automotive qualification standards if required for your application. Ensure compatibility with standard PCB footprints for micro-packages. Cross-reference datasheet revisions to confirm parameter consistency across manufacturing batches.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for designs prioritizing ultra-low offset voltage and drift in space-constrained environments. The single-channel configuration suits applications where only one precision amplification stage is needed. Consider the 400 kHz bandwidth limit for high-speed signal processing tasks. Evaluate power consumption constraints against the 40 µA typical supply current at 5 V operation.

Instrumentation, Op Amps, Buffer Amps Part Context

The TSZ121ICT belongs to the TSZ12x family of zero-drift operational amplifiers. This series includes single (TSZ121), dual (TSZ122), and quad (TSZ124) versions with compatible pinouts. The family is engineered for high stability and low power consumption, making it suitable for modern portable electronics and industrial sensor systems requiring precise analog signal processing.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Check for direct pin-compatible alternatives within the same TSZ12x family or other zero-drift op-amp series from STMicroelectronics. Verify that substitute components match the 1 µV offset voltage and 400 kHz bandwidth requirements. Ensure replacement packages align with SC-70-5 footprint constraints.