Texas Instruments TLV272ID

Overview

TLV272ID from Texas Instruments is a dual rail-to-rail output operational amplifier optimized for low-power, wide-bandwidth signal conditioning in battery-powered and industrial systems. It delivers 3-MHz unity-gain bandwidth, 2.4 V/µs slew rate, 550 µA per channel supply current, and 39 nV/√Hz input voltage noise across a 2.7 V to 16 V supply range - enabling precision sensing and analog front-end design in Li-ion–powered instrumentation and building automation.

For engineers reviewing the TLV272ID datasheet, TLV272ID pinout, TLV272ID application, or TLV272ID equivalent, key selection considerations include its rail-to-rail output swing down to 100 mV from each rail at 1 mA load, 1 pA input bias current for high-impedance sensor interfacing, and guaranteed operation over –40°C to +125°C industrial temperature range.

Technical Context

The TLV272ID uses CMOS input stage architecture to achieve ultra-low input bias current (1 pA typ) and high input impedance (>1 TΩ), making it suitable for photodiode amplification and high-resistance bridge sensor interfaces. Its rail-to-rail output stage employs complementary push-pull transistors to deliver full-swing capability even at low supply voltages (2.7 V).

It operates with single-supply (2.7 V–16 V) or split-supply (±1.35 V–±8 V) configurations and maintains stable unity-gain performance with capacitive loads up to 10 pF; beyond that, external series output resistance (≥20 Ω) is recommended to preserve phase margin ≥65°.

Key Specifications

Pinout & Package

TLV272ID is packaged in an 8-pin SOIC (D package) with 4.98 mm × 3.91 mm body size and standard 1.27-mm pitch. Thermal resistance R_θJA is 127.2°C/W, supporting continuous operation at ≤70°C ambient with typical PCB layout.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar operational amplifier applications.

Compared with TLV272CDR and TLV2372IDR, the TLV272ID provides guaranteed industrial-temperature operation without shutdown overhead - making it optimal for always-on monitoring in harsh environments where thermal stability and long-term reliability outweigh marginal quiescent current savings.

Availability

TLV272ID is available at Aetrix Electronics and suitable for e-bike motor control, smoke detector analog front ends, and solar inverter DC-link monitoring requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TLV272ID 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 and embedded processing technologies, with over 90 years of innovation in precision analog ICs.

The TLV27x family was designed specifically for low-power, rail-to-rail signal conditioning in battery-operated and industrial equipment - bridging performance gaps left by legacy TLC27x devices while maintaining pin compatibility in SOIC and PDIP packages.

FAQ

What is the maximum capacitive load the TLV272ID can drive without oscillation?

The TLV272ID maintains stable unity-gain operation with capacitive loads up to 10 pF. For loads exceeding 10 pF, Texas Instruments recommends adding a series resistor (≥20 Ω) between the output pin and the load capacitance to preserve phase margin above 65° and prevent ringing. This requirement is confirmed in Section 8.3.3 of the TLV272ID datasheet (SLOS351E), and applies across the full –40°C to +125°C operating range.

Does the TLV272ID support split-supply operation, and what are the limits?

Yes, the TLV272ID supports true split-supply operation from ±1.35 V to ±8 V, as specified in Section 7.2 of the datasheet. The device maintains rail-to-rail output swing and full AC performance within this range. Common-mode input voltage extends from GND to VDD − 1.35 V in single-supply mode, or from –VSS to +VDD − 1.35 V in split-supply configurations - enabling bipolar signal handling in sensor interfaces and audio preamps.

How does the TLV272ID's input bias current affect high-impedance sensor designs?

The TLV272ID's 1 pA typical input bias current minimizes voltage error across high-impedance sources: for example, a 10 MΩ source resistance introduces only 10 µV offset (1 pA × 10 MΩ). This enables accurate amplification of signals from pH electrodes, pyroelectric sensors, and MEMS microphones without active guarding or complex compensation networks - a key advantage over higher-bias alternatives like TLC272 (675 pA).

Is the TLV272ID pin-compatible with other members of the TLV27x family?

Yes, the TLV272ID (8-pin SOIC) shares identical pinout with TLV272CDR and TLV272IP, and is functionally compatible with TLV272DGK (VSSOP) and TLV272P (PDIP) variants - all follow the standard dual-op-amp SOIC pin mapping defined in Section 6 of the datasheet. However, thermal performance differs: SOIC (TLV272ID) has R_θJA = 127.2°C/W, while VSSOP (DGK) is 186.6°C/W, affecting maximum power dissipation in compact layouts.

What is the typical output voltage swing of the TLV272ID at 5-V supply and 1-mA load?

At VDD = 5 V and 1-mA load, the TLV272ID delivers VOH = 4.9 V (min) and VOL = 0.1 V (max), representing 98% of the full 0–5 V rail span. These values are measured under standard test conditions (Section 7.8, SLOS351E) and hold across the full industrial temperature range (–40°C to +125°C), confirming robust rail-to-rail behavior for driving 12-bit ADCs and low-voltage logic interfaces.