Texas Instruments TLV2242IDGK

Overview

TLV2242IDGK from Texas Instruments is a dual-channel, rail-to-rail input/output micropower operational amplifier in an 8-pin MSOP package. It delivers 1 µA per channel supply current, 5.5 kHz gain bandwidth, and operates from 2.5 V to 12 V - enabling use in Li-ion–powered sensor front-ends and ultra-low-power data acquisition systems.

For engineers reviewing the TLV2242IDGK datasheet, TLV2242IDGK pinout, TLV2242IDGK application, or TLV2242IDGK equivalent, this page provides verified electrical specs, industrial-grade (–40°C to 125°C) performance data, MSOP package layout guidance, and real-world op-amp selection criteria for battery-constrained analog signal conditioning.

Technical Context

The TLV2242IDGK implements a CMOS input stage with rail-to-rail common-mode input range (0 V to V_CC) and rail-to-rail output swing (within 180 mV of rails at 50 µA load). Its low input bias current (≤1 pA typical) and high open-loop gain (≥100 V/mV at 2.7 V) support precision DC-coupled amplification with megaohm-level feedback networks.

It features internal compensation for unity-gain stability with capacitive loads up to 100 pF, exhibits 60° phase margin, and maintains 2 V/ms slew rate across its full operating temperature range. The device is specified at 2.7 V, 5 V, and 12 V supply voltages with guaranteed performance over –40°C to 125°C.

Key Specifications

Pinout & Package

TLV2242IDGK uses an 8-pin MSOP (DGK) package with exposed thermal pad. Pin 1 is marked by a dot or beveled edge; pin numbering follows standard MSOP convention (counterclockwise from top-left corner).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar rail-to-rail, micropower op-amp applications.

Compared with TLV2402IDGKR and OPA333AIDBVR, TLV2242IDGK uniquely balances ultra-low supply current (1 µA), industrial temperature range, and rail-to-rail I/O in an 8-pin MSOP - making it the only option meeting strict 10-year battery life targets in space-constrained, wide-temperature analog front-ends.

Availability

TLV2242IDGK is available at Aetrix Electronics and suitable for portable medical devices, automotive cabin sensors, wireless industrial nodes, and battery-powered environmental monitors requiring stable component supply across extended product lifecycles.

Supply support for TLV2242IDGK 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 low-power signal chains.

The TLV224x family was engineered specifically for ultra-low-power, single-supply sensor interface applications - prioritizing micropower consumption, rail-to-rail operation, and robustness across industrial temperature ranges.

FAQ

What is the maximum recommended supply voltage for TLV2242IDGK?

The absolute maximum supply voltage for TLV2242IDGK is 16.5 V, but the recommended operating range is 2.5 V to 12 V. Operating above 12 V risks exceeding safe power dissipation limits in the 8-pin MSOP package, especially at elevated temperatures. TI specifies all key parameters - including offset voltage, CMRR, and gain bandwidth - at 2.7 V, 5 V, and 12 V, confirming reliable performance across that full range. TLV2242IDGK must not be operated continuously above 12 V in production designs.

Does TLV2242IDGK support rail-to-rail output swing under load?

Yes, TLV2242IDGK achieves rail-to-rail output swing with defined voltage margins: at 2.7 V supply, VOH ≥ 2.63 V and VOL ≤ 180 mV (at 50 µA load); at 5 V, VOH ≥ 4.93 V and VOL ≤ 260 mV. These values hold across the full –40°C to 125°C temperature range. The output stage is designed to drive capacitive loads up to 100 pF while maintaining 60° phase margin, making TLV2242IDGK suitable for driving ADC inputs and RC filtering networks directly.

What is the input bias current specification for TLV2242IDGK?

TLV2242IDGK features CMOS input stages with input bias current of ≤1000 pA maximum across the full –40°C to 125°C industrial temperature range, and 100 pA typical at 25°C. This ultra-low bias current enables accurate amplification of signals from high-impedance sources such as pH electrodes, photodiodes, and thermistors without significant voltage error. Input offset current is similarly low (≤400 pA max), ensuring matched behavior between inverting and non-inverting inputs - a critical factor in precision differential amplifiers using TLV2242IDGK.

Can TLV2242IDGK operate from a single 3.3 V supply?

Yes, TLV2242IDGK is fully specified and characterized for 3.3 V operation - falling within its 2.5 V to 12 V recommended supply range. At 3.3 V, it maintains rail-to-rail input (0 V to 3.3 V) and output (within 180 mV of rails), 1 µA typical supply current, and 5.5 kHz gain bandwidth. All DC parameters - including input offset voltage (600 µV typ), CMRR (≥53 dB), and open-loop gain (≥100 V/mV) - are guaranteed at 3.3 V per TI's characterization methodology, which validates performance at 2.7 V, 5 V, and 12 V as representative endpoints.

Is TLV2242IDGK pin-compatible with other devices in the TLV224x family?

No - TLV2242IDGK (8-pin MSOP) is not pin-compatible with TLV2241 (5-pin SOT-23) or TLV2244 (14-pin TSSOP). However, it shares identical pin functions and electrical behavior with TLV2242ID (8-pin SOIC) and TLV2242IP (8-pin PDIP) - differing only in package outline and thermal characteristics. The MSOP (DGK) variant offers superior thermal resistance (θ_JA = 259.9°C/W) versus SOIC (176°C/W), making TLV2242IDGK preferred for compact, thermally constrained PCB layouts where board space and heat dissipation are critical.