Texas Instruments TLC274MDRG4

Overview

TLC274MDRG4 from Texas Instruments is a precision quad 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, >10¹² Ω input impedance, and rail-to-rail output swing down to GND - enabling accurate low-level signal conditioning in battery-powered sensor interfaces and industrial analog front-ends.

For engineers reviewing the TLC274MDRG4 datasheet, TLC274MDRG4 pinout, TLC274MDRG4 application, or TLC274MDRG4 equivalent, this device supports design-in where wide supply range (3–16 V), low bias current (<60 pA), and common-mode input extending below negative rail are required - especially in single-supply transducer amplification, active filtering, and precision reference buffering.

Technical Context

The TLC274MDRG4 employs a polysilicon-gate CMOS process delivering latch-up immunity, ESD protection, and stable offset voltage drift of 0.3 µV/°C over 0°C to 70°C. Its input stage enables operation with VIC down to –0.1 V (at VDD = 5 V) while maintaining high common-mode rejection (65–80 dB) and supply-voltage rejection (65–120 dB).

It achieves 4.5 MHz unity-gain bandwidth and 0.5 V/µs slew rate under 5 V supply, with output capable of sourcing/sinking ±30 mA per channel. The architecture supports stable closed-loop gain configurations up to 1000 with ≥60° phase margin at unity gain when loaded with 20 pF.

Key Specifications

Pinout & Package

TLC274MDRG4 is packaged in a 14-pin SOIC (D package), 8.65 mm × 6 mm body size, surface-mount format with standard JEDEC outline and moisture sensitivity level (MSL) 2a per TI documentation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC274CDR, TLC274MDRG4 offers SMT-ready packaging and identical performance; versus TLV2464IDR, it trades lower offset for wider supply range and higher output drive - making TLC274MDRG4 optimal for cost-sensitive, 5–12 V industrial analog signal chains requiring proven long-term stability.

Availability

TLC274MDRG4 is available at Aetrix Electronics and suitable for industrial process monitoring, portable medical sensors, and battery-powered data loggers requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TLC274MDRG4 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 op-amps and industrial-grade signal conditioning ICs.

The TLC27xx family was designed for cost-effective, high-stability analog signal processing in single-supply systems - targeting upgrade paths from bipolar op-amps and legacy BiFET devices in test equipment, sensor interfaces, and control systems.

FAQ

What is the maximum supply voltage rating for TLC274MDRG4?

The absolute maximum supply voltage for TLC274MDRG4 is 18 V, but the recommended operating range is 3 V to 16 V across 0°C to 70°C ambient. Exceeding 16 V risks exceeding internal power dissipation limits and may degrade long-term reliability. Always observe derating curves in the datasheet for elevated temperatures.

Does TLC274MDRG4 support true rail-to-rail input operation?

TLC274MDRG4 does not support full rail-to-rail input - its common-mode input range extends to –0.1 V below GND and up to VDD – 1 V at 25°C (VDD – 1.5 V at other temperatures). However, it does provide rail-to-rail output swing down to GND and within 50 mV of VDD, making it ideal for single-supply output stages.

Can TLC274MDRG4 be used with a 3.3 V supply?

Yes, TLC274MDRG4 is fully specified down to 3 V supply at 0°C to 70°C, delivering guaranteed performance including 10 mV max VIO, 4.5 MHz GBW, and rail-to-rail output. At 3.3 V, output swing remains 0 V to ≥3.25 V, and input common-mode range covers –0.1 V to 2.3 V - sufficient for most 3.3 V system interfacing.

How does the input bias current of TLC274MDRG4 compare to bipolar op-amps?

TLC274MDRG4 exhibits typical input bias current of 10–60 pA - over six orders of magnitude lower than typical bipolar op-amps (e.g., LM324: ~45 nA). This enables use with megaohm-level feedback and source impedances without significant DC error, critical for photodiode amplifiers and high-impedance sensor buffers.

Is thermal shutdown protection built into TLC274MDRG4?

No, TLC274MDRG4 does not include thermal shutdown circuitry. It relies on safe operating area (SOA) limits and external thermal management. Maximum junction temperature is 150°C; continuous operation above 125°C ambient requires careful PCB copper pour design and power dissipation derating per the datasheet's thermal resistance curves.