Texas Instruments TLC272CP

Overview

TLC272CP from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 10 mV max input offset voltage (C-suffix), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to the negative rail. It operates from 3 V to 16 V over 0°C to 70°C and delivers 4.5 MHz unity-gain bandwidth - used in sensor signal conditioning, industrial analog front-ends, and low-power instrumentation.

For engineers reviewing the TLC272CP datasheet, TLC272CP pinout, TLC272CP application, or TLC272CP equivalent, key selection considerations include its wide supply range, ultra-low input bias current (<60 pA), high CMRR (65–80 dB), and compatibility with single-supply systems requiring ground-referenced inputs and outputs.

Technical Context

The TLC272CP uses a polysilicon-gate CMOS process enabling high input impedance (>10¹² Ω), low input bias current (10–60 pA), and stable offset voltage drift (0.3 µV/°C). Its input stage supports common-mode voltage down to –0.1 V (at VDD = 5 V) and output swing within 50 mV of ground - critical for single-supply transducer interfaces.

It achieves 0.5 V/µs slew rate and 4.5 MHz unity-gain bandwidth while maintaining low power consumption (1.12–3.2 mA total supply current). Designed-in latch-up immunity and ESD protection support robust operation in industrial environments without external clamping.

Key Specifications

Pinout & Package

Package: PDIP-8 (Plastic Dual In-line Package), 9.81 mm × 9.43 mm, through-hole mounting compatible with legacy PCB layouts and prototyping breadboards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2462CP and LM358N, the TLC272CP uniquely balances ultra-low bias current, single-supply rail-to-ground operation, and proven industrial reliability - making it optimal for precision analog front-ends where power, noise, and supply flexibility intersect.

Availability

TLC272CP is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable instrumentation amplifiers, single-supply active filters, and transducer interface circuits requiring stable component supply across extended production lifecycles.

Supply support for TLC272CP 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 leader specializing in analog, embedded processing, and connectivity technologies with over 50 years of op-amp innovation and manufacturing excellence.

The TLC27xx family was engineered for precision analog signal conditioning in cost-sensitive industrial and instrumentation systems - delivering BiFET-like performance with CMOS power efficiency and robustness.

FAQ

What is the maximum supply voltage rating for the TLC272CP?

The absolute maximum supply voltage for the TLC272CP is 18 V, as specified in Section 4.1 of the datasheet. However, the recommended operating range is 3 V to 16 V over 0°C to 70°C. Exceeding 16 V may compromise long-term reliability or parametric stability, and operation above 18 V risks permanent damage. The TLC272CP must never be operated outside these limits to ensure compliance with TI's production specifications and warranty terms.

Does the TLC272CP support true rail-to-rail input operation?

No, the TLC272CP does not support rail-to-rail input. Its common-mode input voltage range extends to –0.1 V below the negative rail (V–) but only up to VDD – 1 V at 25°C - approximately 4 V when VDD = 5 V. This means the upper input limit is not the positive rail. The device does provide rail-to-rail *output* swing (within 50 mV of V– and ≤200 mV of V+), but input headroom must be designed accordingly. For full rail-to-rail input, consider TI's TLV2462CP or OPA2333.

Can the TLC272CP drive capacitive loads directly?

The TLC272CP is not unity-gain stable into heavy capacitive loads. Datasheet Figure 4-10 shows phase margin drops below 60° when CL exceeds 20 pF under unity-gain conditions. Driving >100 pF loads (e.g., long cables or unbuffered ADC inputs) risks oscillation unless isolation resistance (e.g., 100 Ω in series with output) or feedback compensation is applied. For stable capacitive loading, use a dedicated buffer stage or select a capacitor-drive-optimized op-amp like the OPA2350.

What is the typical input bias current of the TLC272CP at 85°C?

At 85°C, the typical input bias current of the TLC272CP is 200 pA, with a maximum of 35 pA per the electrical characteristics table for I-suffix variants (Section 4.5). While the C-suffix TLC272CP is rated for 0°C to 70°C operation, its bias current behavior at elevated temperatures follows the same CMOS process trend - increasing exponentially with temperature. At 70°C, the max is 600 pA; thus, thermal design must account for this rise in high-ambient applications to avoid gain error in high-impedance networks.

How does the TLC272CP compare to the TLC272AC and TLC272BC variants?

The TLC272CP has a maximum input offset voltage of 10 mV, whereas the TLC272AC offers 5 mV max and the TLC272BC provides 2 mV max - all at 25°C. All three share identical package (PDIP-8), pinout, supply range, bandwidth, noise, and temperature range (0°C to 70°C). The "C" suffix denotes commercial temperature grade; "A" and "B" indicate tighter VIO bins. No other parameters differ - so system-level performance trade-offs depend solely on required DC precision versus cost.