Texas Instruments TLC374ID

Overview

TLC374ID from Texas Instruments is a LinCMOS™ quadruple differential comparator IC designed for precision voltage comparison in single- or dual-supply systems. It delivers 200 ns typical response time at 5 V, 5 pA typical input bias current, and operates across –40°C to +85°C. Used in overvoltage detection, window comparators, and analog-to-digital interface circuits.

For engineers reviewing the TLC374ID datasheet, TLC374ID pinout, TLC374ID application, or TLC374ID equivalent, key selection factors include its open-drain n-channel outputs, rail-to-rail common-mode input range down to ground, low 0.3 mA supply current at 5 V, and pin compatibility with LM339 in SOIC-14 packaging.

Technical Context

The TLC374ID implements four independent comparators using Texas Instruments' LinCMOS™ process, enabling high-input-impedance (10¹² Ω typ) operation without external biasing. Its input stage supports common-mode voltages from ground to VDD–1.5 V and tolerates differential inputs up to ±18 V.

All outputs are n-channel open-drain, requiring external pull-up resistors to define logic-high levels and enabling wired-AND functionality. Internal ESD protection meets 1000-V HBM rating, and the device is characterized for industrial temperature operation (–40°C to +85°C).

Key Specifications

Pinout & Package

Package: SOIC-14 (D package), 14-pin small-outline integrated circuit with standard 1.27 mm pitch and 8.65 mm × 3.91 mm body dimensions.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quadruple comparator applications.

Compared with LM339DR and TLC374CDR, the TLC374ID uniquely combines industrial temperature rating (–40°C to +85°C), ultra-low input bias current (5 pA), and 200 ns response - making it optimal for precision, low-power, wide-temperature embedded sensing.

Availability

TLC374ID is available at Aetrix Electronics and suitable for overvoltage protection, window comparator circuits, and motor stall detection requiring stable component supply across industrial temperature ranges.

Supply support for TLC374ID 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 expertise in precision analog IC design and high-reliability manufacturing.

The TLC374ID belongs to TI's LinCMOS™ comparator family, engineered for low-power, high-input-impedance applications in industrial control, power management, and sensor interface systems.

FAQ

What is the maximum supply voltage for the TLC374ID?

The TLC374ID supports an absolute maximum supply voltage of 18 V on VDD. For reliable long-term operation, the recommended maximum is 16 V per the datasheet's operating conditions table. Exceeding 18 V risks permanent damage to the internal LinCMOS™ structure, and operation above 16 V should be avoided unless transient conditions are strictly limited and verified.

Does the TLC374ID require external pull-up resistors on its outputs?

Yes, the TLC374ID features n-channel open-drain outputs that require external pull-up resistors to define logic-high voltage levels. The value depends on speed and load requirements - 10 kΩ is typical for general-purpose use, while lower values (e.g., 2.2 kΩ) reduce rise time for faster response. No internal pull-ups are present.

Is the TLC374ID pin-compatible with the LM339?

Yes, the TLC374ID in SOIC-14 (D) package is pin-compatible with the LM339. Pin assignments for inputs, outputs, GND, and VDD match exactly, enabling direct substitution in existing designs - provided the wider supply range (2–18 V), lower input bias current, and faster response of the TLC374ID are accounted for in system validation.

What is the input common-mode voltage range of the TLC374ID?

The TLC374ID supports a common-mode input voltage range from ground (0 V) to VDD–1.5 V across its full operating temperature range (–40°C to +85°C). This rail-to-rail capability - especially down to ground - simplifies interfacing with single-supply sensors and eliminates level-shifting circuitry in many applications.

Can the TLC374ID operate from a dual power supply?

Yes, the TLC374ID can operate from dual supplies as long as the difference between VDD and GND is maintained between 2 V and 18 V. GND serves as the reference node; applying negative voltage to GND is not supported. Dual-supply use is uncommon due to its single-supply-optimized LinCMOS™ architecture and ground-referenced input range.