TLC251CDR

Instrumentation, Op Amps, Buffer Amps Overview

The TLC251CDR is a single-channel operational amplifier utilizing Texas Instruments' silicon-gate LinCMOS process. It operates on supply voltages ranging from 1.4 V to 16 V and supports true single-supply configurations with input common-mode voltage extending to the negative rail. The device features a programmable bias-select pin allowing selection among three distinct AC performance and power-dissipation levels. It includes internal ESD protection exceeding 2000 V per MIL-STD-833C Method 3015.1 and offers external offset nulling capability via two dedicated terminals.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Utilizes silicon-gate LinCMOS technology for stable input offset voltage without sacrificing CMOS advantages
• Features a programmable bias-select pin to trade off between power consumption and AC performance
• Supports true single-supply operation with input common-mode range including the negative rail
• Includes internal electrostatic discharge protection circuits rated above 2000 V

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered or energy-conserving applications
• Remote and inaccessible equipment requiring low-voltage operation
• Microprocessor-controlled systems with software-adjustable performance
• Single battery and solar cell-powered applications

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify that the specific orderable part number matches the required bias grade (TLC251C, TLC251AC, or TLC251BC) as the suffix indicates input offset voltage specifications. Confirm the package type corresponds to the SOIC-8 surface-mount configuration. Ensure the operating temperature range of 0°C to 70°C aligns with the application environment requirements before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select the appropriate bias mode based on the required balance between power dissipation and AC performance characteristics. High-bias mode offers superior slew rate and bandwidth but higher current consumption, while low-bias mode minimizes power usage at the expense of speed. Consider the need for external offset nulling if precise DC accuracy is critical, noting that full nulling may not be achievable in all bias modes or low supply voltages.

Instrumentation, Op Amps, Buffer Amps Part Context

The TLC251 series belongs to a family of low-power programmable operational amplifiers designed for cost-effective use in high-impedance circuits. Unlike traditional metal-gate CMOS devices, this series provides stable input offset voltages suitable for applications previously limited to BIFET and NFET products. The series is characterized for operation across a standard commercial temperature range.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers: TLC251ACD, TLC251BCD.