Texas Instruments LT1013CPG4

Overview

LT1013CPG4 from Texas Instruments is a dual precision operational amplifier in an 8-pin PDIP package, featuring 150 µV max input offset voltage (25°C), 2 µV/°C max offset drift, 0.5 mA max supply current per amplifier, rail-to-rail output swing to ground under sink load, and phase reversal protection. It enables low-side current sensing and thermocouple amplification in single-supply industrial instrumentation.

For engineers reviewing the LT1013CPG4 datasheet, LT1013CPG4 pinout, LT1013CPG4 application, or LT1013CPG4 equivalent, this page delivers verified specifications, validated pin functions, real-world use cases for precision analog signal conditioning, and confirmed alternative options for dual op-amp designs requiring ground-swing capability and low drift.

Technical Context

The LT1013CPG4 integrates two matched, laser-trimmed op-amps on a single die with independent inputs and outputs. Its input stage uses bipolar junction transistors to achieve low input bias current (−30 nA typical) and high common-mode rejection (97 dB min), while the output stage supports true ground-swing operation when sinking current - critical for single-supply sensor interfaces.

It operates across ±15 V dual supplies or 5 V single supply (VCC+ = 5 V, VCC− = 0 V), with input common-mode range extending to VCC− and output swing within 25 mV of ground at 1 mA sink load. The architecture eliminates crossover distortion and includes internal phase reversal protection to prevent latch-up during input overvoltage.

Key Specifications

Pinout & Package

LT1013CPG4 is housed in an 8-pin plastic dual in-line package (PDIP), 9.81 mm × 6.35 mm body size, with through-hole mounting and industry-standard pin spacing (0.1 inch).

Key Features

Applications

Equivalent & Alternatives

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

Compared with OP27GP and LM358N, the LT1013CPG4 uniquely balances ground-swing capability, low drift, and dual-channel integration in a through-hole package - making it irreplaceable for calibrated single-supply sensor front-ends where output headroom and thermal stability are design-critical.

Availability

LT1013CPG4 is available at Aetrix Electronics and suitable for thermocouple amplifiers, low-side current measurement, and instrumentation amplifiers requiring stable component supply across industrial temperature ranges and long-lifecycle programs.

Supply support for LT1013CPG4 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 50 years of innovation in precision linear ICs.

The LT1013x family was designed specifically for high-accuracy, low-power analog signal conditioning in industrial instrumentation - prioritizing ground-swing operation, low drift, and robustness in single-supply systems.

FAQ

What is the maximum operating temperature range for the LT1013CPG4?

The LT1013CPG4 is rated for operation from 0°C to 70°C ambient temperature, matching the commercial-grade LT1013C specification. It is not qualified for extended industrial (−40°C to 105°C) or military (−55°C to 125°C) ranges - those require LT1013DI, LT1013M, or LT1013AM variants. Always verify thermal derating in high-power PCB layouts.

Does the LT1013CPG4 support true rail-to-rail input and output?

The LT1013CPG4 supports rail-to-rail output swing only toward ground (VCC−) when sinking current - it does not swing to VCC+. Its input common-mode range extends to VCC− but stops 2 V below VCC+, so full rail-to-rail operation is not supported. For true rail-to-rail I/O, consider modern alternatives like OPA2333 or ADA4077.

Can the LT1013CPG4 be used with a single 3.3 V supply?

Yes - the LT1013CPG4 operates down to 5 V total supply (VCC+ − VCC−), but performance degrades below that. At 3.3 V, output swing collapses (≤1.5 V high, ≥100 mV low), input common-mode range shrinks to ~0–1.3 V, and gain drops significantly. TI specifies 5 V as minimum; use 5 V or dual ±15 V for guaranteed specs.

Is the LT1013CPG4 pin-compatible with other LT1013 variants?

Yes - all LT1013x variants in PDIP-8 (e.g., LT1013CPG4, LT1013DPG4, LT1013MPG4) share identical pinout and footprint. However, electrical specs differ: LT1013CPG4 has 150 µV max VIO, while LT1013MPG4 offers 300 µV max over −55°C to 125°C. Swapping requires validation of offset, drift, and supply current in target conditions.

How does phase reversal protection work in the LT1013CPG4?

Phase reversal protection in the LT1013CPG4 prevents output inversion when input common-mode voltage exceeds VCC− by more than 0.3 V or rises above VCC+ − 2 V. Internal clamping circuitry disables the input stage before reverse conduction occurs - preserving downstream logic states and preventing latch-up in sensor fault conditions.