Texas Instruments TLV2241ID

Overview

TLV2241ID from Texas Instruments is a single-channel micropower rail-to-rail input/output operational amplifier designed for ultra-low-power signal conditioning in battery-powered and energy-constrained systems. It delivers 1 µA per channel supply current, 5.5 kHz gain bandwidth product, ±200 µA output drive capability, and operates from 2.5 V to 12 V - enabling use in Li-ion–powered sensor front-ends and MSP430-based portable instrumentation.

For engineers reviewing the TLV2241ID datasheet, TLV2241ID pinout, TLV2241ID application, or TLV2241ID equivalent, key selection criteria include its guaranteed operation over –40°C to 125°C industrial temperature range, 600 µV typical input offset voltage at 25°C, rail-to-rail output swing within 180 mV of rails at 50 µA load, and compatibility with high-impedance feedback networks due to 100 pA max input bias current.

Technical Context

The TLV2241ID employs CMOS input stage architecture enabling femtoampere-level input bias currents and rail-to-rail common-mode input voltage range (0 V to V_CC). Its internal compensation ensures stable unity-gain operation with capacitive loads up to 100 pF, delivering 60° phase margin and 15 dB gain margin under standard test conditions (R_L = 500 kΩ, C_L = 100 pF).

DC precision is maintained across supply voltages via low 3 µV/°C offset drift and 100 dB CMRR at 5 V, while dynamic performance includes 2 V/ms slew rate and 1.84 ms 0.1% settling time (V_STEP = 1 V, R_L = 100 kΩ, C_L = 100 pF) - optimized for slow-varying sensor outputs and precision DC-coupled amplification.

Key Specifications

Pinout & Package

TLV2241ID is packaged in a 5-pin SOT-23 (DBV) surface-mount package with exposed pad thermal enhancement. The device uses a standard op-amp pinout optimized for minimal PCB footprint and low parasitic capacitance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2241CD, TLV2241ID provides guaranteed performance over –40°C to 125°C without sacrificing micropower or rail-to-rail functionality; versus LPV821IDBVR, it offers superior output voltage range at 2.7 V and higher supply voltage flexibility (up to 12 V), making it more robust for mixed-voltage industrial sensor hubs.

Availability

TLV2241ID is available at Aetrix Electronics and suitable for industrial temperature sensing, portable medical diagnostics, and smart metering applications requiring stable component supply across extended lifecycle and harsh environmental conditions.

Supply support for TLV2241ID 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 chain solutions.

The TLV224x family was engineered specifically for micropower, rail-to-rail precision amplification in battery-operated and energy-sensitive systems - targeting sensor signal conditioning, portable instrumentation, and industrial process monitoring.

FAQ

What is the maximum supply voltage rating for TLV2241ID?

The absolute maximum supply voltage for TLV2241ID is 16.5 V, but the recommended operating range is 2.5 V to 12 V. Operation beyond 12 V risks exceeding safe power dissipation limits and may degrade long-term reliability. Electrical characteristics are fully specified at 2.7 V, 5 V, and 12 V - confirming TLV2241ID's suitability for both low-voltage portable and higher-voltage industrial rails.

Does TLV2241ID support true rail-to-rail output swing at 2.5 V supply?

Yes, TLV2241ID achieves rail-to-rail output swing down to 2.5 V supply. At V_CC = 2.7 V and I_OL = 50 µA, VOL is specified at 260 mV max - meaning output can swing within ~260 mV of GND. Similarly, VOH reaches within ~30 mV of V_CC. This behavior is validated across the full –40°C to 125°C range, making TLV2241ID appropriate for Li-ion battery systems operating near end-of-discharge voltage.

Can TLV2241ID drive capacitive loads without instability?

TLV2241ID is internally compensated for unity-gain stability with capacitive loads up to 100 pF, delivering 60° phase margin and 15 dB gain margin under standard test conditions (R_L = 500 kΩ). For loads >100 pF, external isolation resistance (e.g., 10–50 Ω in series with output) is recommended. Layout best practices - including short traces, local 0.1 µF decoupling, and minimized input node capacitance - are essential to preserve this stability in real-world PCBs.

What is the input bias current specification for TLV2241ID over temperature?

TLV2241ID exhibits ≤100 pA typical input bias current at 25°C, rising to ≤1000 pA maximum across the full –40°C to 125°C industrial temperature range. This ultra-low I_IB enables use with high-value feedback resistors (>10 MΩ) without introducing significant offset errors - critical for precision thermistor and pH probe interfaces where leakage must be minimized.

Is TLV2241ID pin-compatible with other devices in the TLV224x family?

No - TLV2241ID (single-channel, 5-pin SOT-23) is not pin-compatible with TLV2242ID (dual, 8-pin MSOP) or TLV2244ID (quad, 14-pin TSSOP). Each variant has distinct pinouts and package footprints. However, all share identical electrical specifications and functional behavior per channel, allowing schematic reuse with layout adaptation when scaling channel count in a design.