Diodes Incorporated TLC27L1IS-13

Overview

TLC27L1IS-13 from Diodes Incorporated is a CMOS low-power operational amplifier with 10 mV input offset voltage, -40°C to +85°C industrial temperature range, SO-8 package, and rail-to-rail output swing down to the negative rail. It delivers 68 nV/√Hz input noise at 1 kHz, 85 MHz unity-gain bandwidth at VDD = 5 V, and consumes only 10–17 µA supply current - enabling precision signal conditioning in battery-powered portable instrumentation.

For engineers reviewing the TLC27L1IS-13 datasheet, TLC27L1IS-13 pinout, TLC27L1IS-13 application, or TLC27L1IS-13 equivalent, key selection criteria include its extended common-mode input range below ground, low bias current (≤60 pA typ), offset null capability, and compatibility with single-supply systems operating from 4 V to 16 V.

Technical Context

The TLC27L1IS-13 implements a CMOS input stage delivering ultra-low input bias current (0.6–60 pA) and high input impedance (>10¹² Ω), paired with a Class AB output stage enabling rail-to-rail output swing including the negative rail. Its internal offset null terminals (Pins 1 and 5) support external trimming for precision DC-coupled applications.

Designed for single-supply operation, it features a common-mode input voltage range extending 0.2 V below the negative rail (GND), stable phase margin (≥28°) across temperature and capacitive loads, and inherent latch-up immunity per JEDEC JESD78. It is not a programmable amplifier but a fixed-gain, low-power variant of the TLC271 family.

Key Specifications

Pinout & Package

SO-8 surface-mount package (Package Code S), 1.27 mm pitch, standard JEDEC MS-012AC footprint. Pin 4 is GND; Pins 1 and 5 are dedicated offset null terminals requiring external 100 kΩ potentiometer connection for trimming.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC27L1CS-13, the TLC27L1IS-13 provides guaranteed performance over -40°C to +85°C with identical offset and noise specs, making it the sole choice for uncontrolled-temperature deployments. Versus TLV2461IDBVR, it trades higher precision for 25× lower supply current and offset adjustability - critical for battery longevity and calibration flexibility.

Availability

TLC27L1IS-13 is available at Aetrix Electronics and suitable for portable medical meters, industrial power supply monitoring, audio preamplifiers, and low-power sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLC27L1IS-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, energy-efficient components for industrial, computing, and consumer markets.

The TLC27L1 series belongs to Diodes' precision analog portfolio, designed specifically for low-power, single-supply signal conditioning in portable and battery-operated instrumentation where offset stability and input impedance are critical.

FAQ

Can TLC27L1IS-13 operate from a 3 V supply?

No. The TLC27L1IS-13 is specified for 4 V to 16 V operation over its full -40°C to +85°C industrial temperature range. At 3 V, the device may fail to meet guaranteed parameters including input common-mode range, output swing, and slew rate. For 3 V systems, consider the TLC27L2 or TLV246x families.

What is the purpose of Pins 1 and 5 on TLC27L1IS-13?

Pins 1 (OFFSET N1) and 5 (OFFSET N2) are dedicated offset null terminals. They connect to the ends of an external 100 kΩ potentiometer, with the wiper tied to VDD or GND depending on configuration, enabling manual trimming of input offset voltage to sub-millivolt levels for DC-critical applications.

Does TLC27L1IS-13 support rail-to-rail input?

No. While the output swings rail-to-rail (including GND), the input common-mode range extends only to -0.2 V below GND and up to VDD – 1.5 V (e.g., 3.5 V at VDD = 5 V). It does not support full rail-to-rail input; for that, consider the TLV2461 or MCP6001.

Is TLC27L1IS-13 pin-compatible with TLC271IS-13?

Yes, both devices share identical SO-8 pinout and footprint. However, TLC271IS-13 draws ~1.2 mA supply current and offers higher slew rate (3.6 V/µs) and bandwidth (2.3 MHz), whereas TLC27L1IS-13 prioritizes ultra-low power (17 µA) at the expense of speed - direct substitution requires verifying bandwidth and power budget constraints.