Texas Instruments TLC272BIP

Overview

TLC272BIP from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 2 mV maximum input offset voltage (25°C), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to the negative rail. It operates from 4 V to 16 V over –40°C to 85°C and delivers 0.5 V/μs slew rate and 4.5 MHz unity-gain bandwidth - used in sensor signal conditioning, industrial analog front-ends, and precision instrumentation.

For engineers reviewing the TLC272BIP datasheet, TLC272BIP pinout, TLC272BIP application, or TLC272BIP equivalent, this page provides verified electrical specifications, package mapping to PDIP-8, real-world design context for single-supply biasing and noise-sensitive circuits, and two validated alternative parts with documented parameter differences.

Technical Context

The TLC272BIP uses a polysilicon-gate CMOS process to achieve ultra-low input bias current (<60 pA typical at 25°C) and low input offset voltage drift (0.3 μV/°C from 25°C to 85°C). Its input stage supports common-mode voltage down to –0.1 V (at VDD = 5 V) and up to VDD – 1.5 V, enabling true single-supply operation without level-shifting circuitry.

It integrates ESD protection and latch-up immunity, and its open-loop gain exceeds 5 V/mV (min) with 60° phase margin at unity gain. The device is not internally compensated for gains below 5, requiring external compensation in low-gain configurations per Figure 4-10 and Section 6.1.2.

Key Specifications

Pinout & Package

The TLC272BIP is supplied in an 8-pin PDIP (Plastic Dual In-line Package) with 9.81 mm × 9.43 mm footprint and 2.54 mm lead pitch. This through-hole package supports manual prototyping and legacy industrial PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual precision op-amp applications.

Compared with TLC272BI, TLC272BIP provides identical performance in a through-hole package ideal for manual assembly and high-reliability industrial environments; versus TLV2462IDR, it supports higher supply voltages and lower noise at the cost of non-rail-to-rail input - making it better suited for 5–16 V sensor conditioning where input common-mode range includes ground.

Availability

TLC272BIP is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable instrumentation front-ends, and medical patient monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLC272BIP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TLC27xx family was designed specifically for precision, low-power, single-supply analog signal conditioning - targeting applications where BiFET performance was needed at CMOS power levels and cost.

FAQ

What is the maximum operating supply voltage for the TLC272BIP?

The TLC272BIP has an absolute maximum supply voltage rating of 18 V, but its recommended operating range is 4 V to 16 V across the full –40°C to 85°C temperature range. Operation above 16 V risks exceeding internal junction limits and is not characterized. The TLC272BIP maintains specified performance including input offset voltage and slew rate only within the 4–16 V window.

Does the TLC272BIP support true rail-to-rail input operation?

No, the TLC272BIP does not support rail-to-rail input. Its common-mode input voltage range extends to the negative rail (V−) but only to VDD – 1.5 V at temperatures other than 25°C - for example, 3.5 V max at VDD = 5 V and TA = 85°C. This limitation means the TLC272BIP cannot accept input signals all the way to the positive supply rail, unlike newer rail-to-rail input op-amps such as the TLV2462.

Can unused amplifiers in the TLC272BIP be left floating?

No, unused amplifiers in the TLC272BIP must not be left floating. Per TI's application guidance (Section 6.1.2), each unused op-amp section must be configured as a grounded unity-gain voltage follower - connecting its non-inverting input to ground, inverting input to output, and leaving output unconnected except for that feedback path. Floating inputs risk oscillation, increased supply current, and unpredictable output states that may disrupt adjacent channels.

What is the typical input bias current of the TLC272BIP at 85°C?

The typical input bias current of the TLC272BIP at 85°C is 200 pA, with a maximum of 2000 pA under worst-case conditions (per Section 4.5 Electrical Characteristics). This value reflects the CMOS input stage's temperature-dependent leakage behavior and is significantly higher than the 10–60 pA typical range at 25°C - a critical consideration for high-impedance sensor interfaces operating at elevated ambient temperatures.

Is the TLC272BIP pin-compatible with the TLC272CP or TLC272IP?

Yes, the TLC272BIP is fully pin-compatible with the TLC272CP (0°C to 70°C) and TLC272IP (–40°C to 85°C) in the same PDIP-8 package. All three share identical pinout, electrical characteristics at their respective temperature grades, and mechanical dimensions. The "B" grade denotes 2000 μV max input offset voltage, while "C" and "I" denote 10 mV and 10 mV grades respectively - meaning only VIO differs; all other parameters including pin functions and package outline are identical.