Texas Instruments TLV2241CDR

Overview

TLV2241CDR from Texas Instruments is a single-channel micropower rail-to-rail input/output operational amplifier in 5-pin SOT-23 package, delivering 1 µA/channel supply current, 5.5 kHz gain bandwidth product, and 600 µV typical input offset voltage at 2.7 V. It operates from 2.5 V to 12 V and supports 0°C to 70°C commercial temperature range - ideal for battery-powered sensor signal conditioning and low-power analog front-ends.

For engineers reviewing the TLV2241CDR datasheet, TLV2241CDR pinout, TLV2241CDR application, or TLV2241CDR equivalent, key selection criteria include ultra-low quiescent current, rail-to-rail I/O swing at sub-3-V operation, input bias current below 500 pA, and compatibility with Li-ion and MSP430-based systems requiring long-term active life.

Technical Context

The TLV2241CDR uses 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 output stage delivers rail-to-rail swing under light loads (±2 µA), with open-loop gain ≥100 V/mV at 2.7 V and phase margin of 60° into 100 pF capacitive load.

Designed for single-supply operation, it maintains specified performance across 2.5–12 V supply range, with PSRR ≥70 dB (2.7–5 V) and CMRR ≥100 dB at 25°C. Input offset drift is 3 µV/°C, and unity-gain stable operation is ensured up to 100 pF load capacitance.

Key Specifications

Pinout & Package

TLV2241CDR is housed in a 5-pin SOT-23 (DBV) package with exposed pad not electrically connected. The package measures 2.9 mm × 1.6 mm × 1.1 mm and is RoHS-compliant, tape-and-reel packaged (3000 pcs/reel).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2241CDR, TLV2211IDBVR trades micropower for speed and lacks rail-to-rail input, while TLV2401CDBVR matches power consumption but adds reverse-battery protection and tighter offset - making it preferable for harsh-environment deployments where reliability outweighs marginal cost increase.

Availability

TLV2241CDR is available at Aetrix Electronics and suitable for portable medical devices, battery-powered environmental sensors, and industrial temperature monitoring systems requiring stable component supply and long-lifecycle support.

Supply support for TLV2241CDR 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 designed specifically for ultra-low-power, single-supply sensor signal conditioning in portable and energy-constrained applications - emphasizing micropower operation without sacrificing rail-to-rail I/O capability or DC accuracy.

FAQ

What is the maximum recommended supply voltage for TLV2241CDR?

The absolute maximum supply voltage for TLV2241CDR is 16.5 V, but the recommended operating range is 2.5 V to 12 V. Operation above 12 V risks exceeding safe power dissipation limits and may degrade long-term reliability. Electrical specifications are guaranteed at 2.7 V, 5 V, and 12 V per the datasheet - TLV2241CDR must not be operated continuously above 12 V in production designs.

Does TLV2241CDR support true rail-to-rail input operation?

Yes, TLV2241CDR supports true rail-to-rail input operation with common-mode voltage range from 0 V to V_CC. This is enabled by its complementary CMOS input stage, allowing accurate amplification of signals near ground or near the positive rail - a critical feature for single-supply systems like those using TLV2241CDR in battery-monitoring or sensor front-end applications.

What is the typical input offset voltage of TLV2241CDR and how does it affect precision designs?

The typical input offset voltage of TLV2241CDR is 600 µV at 25°C, with a maximum of 3000 µV across the 0°C to 70°C range. In a unity-gain buffer configuration, this directly appears as output error. For example, when interfacing with a 12-bit 3.3-V ADC, TLV2241CDR's typical offset contributes <0.8 LSB error - acceptable for most 10–12-bit sensor applications but may require calibration in higher-precision use cases.

Can TLV2241CDR drive capacitive loads, and what is the stability limit?

TLV2241CDR is unity-gain stable and characterized for capacitive loads up to 100 pF, maintaining 60° phase margin per Figure 24. Driving larger capacitive loads (e.g., >200 pF) may cause peaking or oscillation. For ADC input buffering or cable-driving applications, a series resistor (e.g., 10–50 Ω) between TLV2241CDR output and the load is recommended to isolate capacitance and preserve stability.

Is TLV2241CDR pin-compatible with other members of the TLV224x family?

No, TLV2241CDR is not pin-compatible with TLV2242 or TLV2244. TLV2241CDR uses a 5-pin SOT-23 (DBV) package with dedicated single-channel pinout, whereas TLV2242 (dual) and TLV2244 (quad) use 8-pin MSOP and 14-pin TSSOP packages respectively. Each variant has distinct pin assignments - TLV2241CDR cannot be substituted without PCB layout changes.