Texas Instruments TLV2381IDBVR

Overview

TLV2381IDBVR from Texas Instruments is a single-channel micropower rail-to-rail input/output operational amplifier in a 5-pin SOT-23 package, delivering 160 kHz gain-bandwidth, 7 µA supply current per channel, and 90 nV/√Hz input noise voltage at 1 kHz - enabling ultra-low-power sensor signal conditioning in portable medical and smoke detection systems.

For engineers reviewing the TLV2381IDBVR datasheet, TLV2381IDBVR pinout, TLV2381IDBVR application, or TLV2381IDBVR equivalent, this page provides verified electrical specifications, thermal performance data across –40°C to 125°C, SOT-23 layout guidance, and direct alternatives for low-voltage, high-precision analog front-end designs.

Technical Context

The TLV2381IDBVR employs BiMOS architecture to achieve rail-to-rail input common-mode range (–0.2 V to VS + 0.2 V) and rail-to-rail output swing (within 120 mV of rails at VS = 2.7 V), supporting operation from 2.7 V to 16 V single supply or ±1.35 V to ±8 V dual supply. Its 1 pA typical input bias current enables high-impedance source interfacing without significant error.

It delivers stable unity-gain operation with 62° phase margin into 100 kΩ || 50 pF loads and achieves 0.06 V/µs slew rate at 25°C, making it suitable for DC-coupled, low-frequency precision amplification rather than high-speed signal processing.

Key Specifications

Pinout & Package

SOT-23 (DBV) 5-pin package: ultra-small footprint (2.92 mm × 1.6 mm × 1.45 mm max height), surface-mount, lead-free (Sn finish), MSL Level-1, compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA349AIDBVR and TLV2371IDBVR, the TLV2381IDBVR uniquely balances ultra-low power (7 µA), wide supply range (2.7–16 V), and low noise (90 nV/√Hz) - making it optimal for industrial and automotive sensor nodes where voltage flexibility and precision coexist.

Availability

TLV2381IDBVR is available at Aetrix Electronics and suitable for portable medical devices, power monitoring systems, and low-power security detection systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV2381IDBVR 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 TLV2381IDBVR belongs to TI's micropower rail-to-rail op amp product line, engineered specifically for battery-constrained, high-accuracy sensing applications in medical, industrial, and safety-critical environments.

FAQ

What is the maximum supply voltage rating for TLV2381IDBVR?

The absolute maximum supply voltage for TLV2381IDBVR is 16.5 V, with recommended operation up to 16 V. Exceeding this may cause permanent damage. The device supports single-supply operation from 2.7 V to 16 V or dual-supply operation from ±1.35 V to ±8 V, making it adaptable to diverse power architectures including two-cell lithium or alkaline batteries.

Does TLV2381IDBVR support rail-to-rail input and output simultaneously?

Yes, TLV2381IDBVR supports true rail-to-rail input (common-mode range from –0.2 V to VS + 0.2 V) and rail-to-rail output (swing within 120 mV of both rails at VS = 2.7 V). This dual rail-to-rail capability allows full utilization of the supply range in single-supply configurations, eliminating the need for level-shifting circuitry in 3.3 V or 5 V systems interfacing with microcontrollers or ADCs.

What is the input bias current specification for TLV2381IDBVR across temperature?

TLV2381IDBVR has a typical input bias current of 1 pA at 25°C, rising to 100 pA at 70°C and 1000 pA at 125°C. This ultra-low bias current remains stable enough to interface directly with high-impedance sources like photodiodes, pH electrodes, or thermopiles without introducing significant offset errors - a key advantage over older CMOS op amps in precision analog front ends.

Can TLV2381IDBVR drive capacitive loads without instability?

TLV2381IDBVR is stable with capacitive loads up to 50 pF when driving a 100 kΩ load, as confirmed by 62° phase margin measurements. For larger capacitive loads (e.g., ADC input capacitance or long PCB traces), a series isolation resistor (≥100 Ω) between TLV2381IDBVR output and the load is required to maintain stability and prevent peaking or oscillation in the frequency response.

Is TLV2381IDBVR pin-compatible with other SOT-23 op amps like TLV2371IDBVR?

Yes, TLV2381IDBVR shares the same 5-pin SOT-23 (DBV) package and identical pinout (IN–, IN+, GND, VDD, OUT) with TLV2371IDBVR and several other TI single-channel SOT-23 op amps. This allows direct PCB-level substitution in existing layouts when upgrading or downgrading performance parameters such as bandwidth, supply current, or noise - provided system-level validation confirms compatibility with the new device's electrical behavior.