Texas Instruments TLC254BCN

Overview

TLC254BCN from Texas Instruments is a LinCMOS™ quad operational amplifier optimized for low-power, single-supply operation with 2-mV maximum input offset voltage, 1.4-V to 16-V supply range, and rail-to-rail common-mode input extending to the negative rail. It serves as a precision signal-conditioning IC in battery-powered sensor interfaces and portable instrumentation.

For engineers reviewing the TLC254BCN datasheet, TLC254BCN pinout, TLC254BCN application, or TLC254BCN equivalent, key selection criteria include its ultra-low input bias current (1 pA typ), wide supply voltage tolerance, true single-supply capability, and guaranteed 2-mV V_IO max at 25°C - critical for high-impedance transducer amplification and energy-constrained designs.

Technical Context

The TLC254BCN implements a silicon-gate LinCMOS™ process enabling stable input-offset voltage grading (2 mV max), extremely high input impedance (>10¹² Ω), and sub-picoampere input bias/offset currents. Its architecture supports unity-gain stability and operates down to 1.4 V with full functionality across 0°C to 70°C.

It features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.1), rail-inclusive common-mode input range, and low-noise performance (25 nV/√Hz typ at 1 kHz for high-bias variants - though TLC254BCN is medium-bias with 32 nV/√Hz at V_DD = 5 V).

Key Specifications

Pinout & Package

Package: 14-pin plastic DIP (N package), through-hole mountable, 0.3-inch width, JEDEC MS-001 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC25L4BCN and TLV2464CDR, the TLC254BCN uniquely delivers 2-mV V_IO max with medium-speed performance (0.43 V/µs) and true single-supply rail-inclusive input - making it the optimal choice for precision, battery-operated sensor interfaces requiring guaranteed low offset without trimming.

Availability

TLC254BCN is available at Aetrix Electronics and suitable for portable medical devices, environmental sensor nodes, and industrial data loggers requiring stable component supply across long production lifecycles.

Supply support for TLC254BCN 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-amps and low-power innovation.

The TLC254 family was designed specifically for cost-sensitive, battery-powered instrumentation requiring high input impedance, low offset, and single-supply operability - targeting sensor signal chains in portable and remote equipment.

FAQ

What is the maximum input offset voltage specification for TLC254BCN?

The TLC254BCN is binned to a maximum input offset voltage (V_IO) of 2 mV at 25°C, as confirmed in the "Available options" table and electrical characteristics sections of the SLOS003G datasheet. This grade is explicitly designated by the 'B' suffix and applies across the full 0°C to 70°C operating range with a max of 3 mV. The TLC254BCN maintains this tight offset spec without requiring external trimming or calibration circuitry.

Does TLC254BCN support true single-supply operation with input signals at ground potential?

Yes, the TLC254BCN supports true single-supply operation with its common-mode input voltage range extending to the negative rail (V_DD–/GND). As stated in the datasheet description and verified in the VICR specifications, the input can accept voltages down to GND (0 V) when powered from a single positive supply - eliminating the need for input biasing networks in ground-referenced sensor applications.

What is the typical supply current consumption of TLC254BCN at 5 V?

At V_DD = 5 V and T_A = 25°C, the TLC254BCN draws a typical supply current of 420 µA per amplifier, or 1.68 mA total for all four op-amps, as specified in the "electrical characteristics" table for TLC25M4BC under V_DD = 5 V conditions. This value is measured with no load and VIC = VO = 2.5 V, and remains within 340–880 µA per amplifier across the full 0°C to 70°C range.

Is TLC254BCN pin-compatible with other devices in the TLC25x4 family?

Yes, the TLC254BCN shares identical pinout and footprint with all 14-pin N-package variants in the TLC25x4 family, including TLC254CN, TLC254ACN, TLC25L4BCN, and TLC25M4BCN. The datasheet's "D, N, OR PW PACKAGE (TOP VIEW)" diagram confirms uniform pin assignment across all versions, enabling drop-in replacement based on required V_IO grade and bias current profile without PCB modification.

What is the unity-gain bandwidth of TLC254BCN at 5 V supply?

The unity-gain bandwidth (B1) of the TLC254BCN is 525 kHz at V_DD = 5 V and T_A = 25°C, as specified in the "operating characteristics, VDD = 5 V" table for the TLC25M4BC variant. This value decreases to 400 kHz at 70°C and scales with supply voltage - 635 kHz at V_DD = 10 V - reflecting its medium-bias architecture optimized for speed-power tradeoff.