Texas Instruments TLC27M4MJ

Overview

TLC27M4MJ from Texas Instruments is a LinCMOS™ precision quad operational amplifier optimized for low-power, high-input-impedance analog signal conditioning in industrial and test equipment. It delivers ±300 µV max input offset voltage at 25°C (VDD = 5 V), ±0.6 µV/°C offset drift, 32 nV/√Hz input noise at 1 kHz, rail-to-rail output swing to negative rail, and operates from 4 V to 16 V across –55°C to 125°C.

For engineers reviewing the TLC27M4MJ datasheet, TLC27M4MJ pinout, TLC27M4MJ application, or TLC27M4MJ equivalent, this device is selected for precision sensor interfacing, multiplexed data acquisition, and motor control feedback loops where low quiescent current (420–1120 µA at 25°C for all four amplifiers) and stable DC performance over wide temperature extremes are critical.

Technical Context

The TLC27M4MJ belongs to the TLC27Mxx family of CMOS-input op-amps designed to replace bipolar devices in precision applications while reducing power consumption by >90%. Its LinCMOS process enables 6 TΩ typical input impedance and latch-up immunity without external protection circuitry.

It supports single-supply operation with common-mode input range extending to the negative rail (GND), and output voltage swing includes GND - enabling true ground-referenced signal processing. The device is characterized across three temperature grades (C/I/M); the "MJ" suffix denotes the military-grade M-suffix variant in hermetic metal can (J package), rated for –55°C to 125°C operation.

Key Specifications

Pinout & Package

Package: J (metal can, 14-pin, hermetically sealed), suitable for high-reliability aerospace, defense, and downhole industrial environments. Dimensions per TI SLOP013B: 19.56 mm × 8.89 mm × 4.45 mm (L × W × H).

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA4188IDR and LM324J, the TLC27M4MJ uniquely balances military-grade temperature resilience (–55°C to 125°C), ultra-low input bias current (<60 pA), and sub-mV offset in a hermetic package - making it irreplaceable in downhole drilling sensors and avionics health monitors where field recalibration is impossible.

Availability

TLC27M4MJ is available at Aetrix Electronics and suitable for programmable logic controllers, motor drive feedback systems, and test & measurement equipment requiring stable component supply under extended temperature and long-life deployment conditions.

Supply support for TLC27M4MJ 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 decades of heritage in precision op-amp innovation.

The TLC27Mxx product line was engineered for high-reliability analog signal conditioning in harsh environments - targeting aerospace, defense, oil & gas, and industrial automation where long-term parametric stability and hermetic packaging are non-negotiable.

FAQ

What is the maximum operating temperature range for the TLC27M4MJ?

The TLC27M4MJ is rated for continuous operation from –55°C to 125°C, as confirmed by its M-suffix designation and J-package qualification per MIL-STD-883. This makes it suitable for downhole tools, engine control units, and space-constrained industrial enclosures where ambient temperatures exceed commercial-grade limits. All electrical specifications in the datasheet's Section 6.8 and 6.9 are guaranteed across this full range.

Does the TLC27M4MJ support true single-supply operation with input signals at ground potential?

Yes, the TLC27M4MJ supports true single-supply operation: its common-mode input voltage range includes the negative rail (GND) at all supply voltages (4–16 V), and its output swings fully to GND. This allows direct interfacing with ground-referenced sensors (e.g., bridge transducers) and ADCs without level-shifting circuitry - a key advantage over older op-amps that require dual supplies for 0-V signal handling.

How does the input offset voltage of the TLC27M4MJ compare to the TLC27M4C or TLC27M4I variants?

The TLC27M4MJ (M-suffix) has a maximum input offset voltage of ±300 µV at 25°C - identical to the TLC27M4BC and TLC27M4BI variants, but tighter than the standard TLC27M4C (±10 mV) and TLC27M4AC (±5 mV). The M-grade prioritizes low offset and extended temperature stability over cost, making TLC27M4MJ the preferred choice when precision must be maintained across –55°C to 125°C without recalibration.

Is the TLC27M4MJ pin-compatible with other TLC27Mxx quad op-amps in SOIC or TSSOP packages?

No - the TLC27M4MJ uses a 14-pin hermetic metal can (J) package with a unique pinout and physical footprint incompatible with plastic D (SOIC), PW (TSSOP), or N (PDIP) packages. While electrical functionality matches the TLC27M4 family, mechanical replacement requires PCB redesign. Engineers must verify land pattern and thermal relief requirements per TI SLOP013B mechanical drawing before integration.

What is the typical supply current for the TLC27M4MJ at 125°C and VDD = 5 V?

At 125°C and VDD = 5 V, the TLC27M4MJ draws 280–720 µA (typical to max) for all four amplifiers combined, as specified in Section 6.8 "Electrical Characteristics - TLC27M4M 5V". This represents a reduction from room-temperature current (420–1120 µA), due to CMOS process behavior - a critical detail for thermal design in sealed enclosures where self-heating could otherwise cause runaway current draw.