Texas Instruments TLV379IDR

Overview

TLV379IDR from Texas Instruments is a single-channel, micropower, rail-to-rail input/output operational amplifier optimized for ultra-low-power battery-operated systems. It delivers 4 µA typical quiescent current, 0.8 mV typical input offset voltage, and 90 kHz gain-bandwidth product across 1.8 V to 5.5 V supply, enabling precision signal conditioning in power-bank voltage monitoring and portable medical sensor front-ends.

For engineers reviewing the TLV379IDR datasheet, TLV379IDR pinout, TLV379IDR application, or TLV379IDR equivalent, this page provides verified package mapping (SOIC-8), confirmed pin functions, real-world design implications of rail-to-rail I/O and 5 pA input bias current, and two validated alternative op-amps with documented functional trade-offs.

Technical Context

The TLV379IDR employs a complementary differential input stage to achieve rail-to-rail common-mode input range extending 100 mV beyond both supply rails, with CMRR specified from V– to (V+) – 1 V. Its class AB output stage enables full rail-to-rail swing-typically within 25 mV of either rail at 5 kΩ load-while maintaining unity-gain stability.

It operates across –40°C to +125°C with guaranteed 12 µA maximum quiescent current per channel and 83 nV/√Hz input voltage noise density at 1 kHz. The device features internal ESD protection (±2000 V HBM) and is designed for single-supply operation without external level-shifting circuitry.

Key Specifications

Pinout & Package

TLV379IDR is packaged in an 8-pin SOIC (D package) with 4.90 mm × 3.91 mm body size and standard JEDEC MS-012 footprint. Pin 1 is marked by a beveled corner or dot; pin numbering follows counterclockwise convention from top-left when viewed from top with marking side up.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2379IDR and OPA348AIDBVR, TLV379IDR uniquely balances ultra-low quiescent current (4 µA), rail-to-rail I/O, and SOIC-8 manufacturability-making it the only choice for cost-sensitive, single-channel, battery-life-critical applications where speed is secondary to power efficiency.

Availability

TLV379IDR is available at Aetrix Electronics and suitable for power bank voltage monitoring, solar inverter MPPT sensing, and portable medical sensor front-ends requiring stable component supply across extended production lifecycles.

Supply support for TLV379IDR 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 company specializing in analog and embedded processing technologies, with leadership in precision analog ICs and low-power design methodologies.

The TLV379IDR belongs to TI's cost-optimized, micropower op-amp product line targeting battery-powered instrumentation, portable medical devices, and energy-harvesting systems where sub-µA standby current and rail-to-rail performance are essential.

FAQ

What is the maximum supply voltage rating for TLV379IDR?

The absolute maximum supply voltage for TLV379IDR is 7 V, as specified in the Absolute Maximum Ratings table. Operation above 5.5 V is outside the recommended range and risks permanent damage. For reliable long-term performance, maintain VS between 1.8 V and 5.5 V, with proper 0.1 µF ceramic bypass capacitors placed close to pins 4 (V–) and 7 (V+). Exceeding 7 V violates the device's stress limits and voids warranty coverage for TLV379IDR.

Does TLV379IDR support true rail-to-rail input and output operation?

Yes, TLV379IDR supports rail-to-rail input with common-mode range extending from (V–) – 0.1 V to (V+) + 0.1 V, and rail-to-rail output with swing to within 25 mV of either rail under 5 kΩ load. This is achieved via complementary input transistors and a class AB output stage. However, CMRR degrades above (V+) – 1 V due to input stage transition-designers must keep input signals within the high-CMRR region for precision applications using TLV379IDR.

Can TLV379IDR drive capacitive loads without instability?

TLV379IDR is stable with capacitive loads ≤30 pF in unity-gain configuration. For larger loads, insert a 10–20 Ω series resistor between the output (pin 1) and the load to suppress ringing-this preserves DC accuracy while reducing overshoot. Do not use this resistor with parallel resistive loads, as it introduces a voltage-divider error. Always verify stability with actual PCB parasitics when using TLV379IDR in high-capacitance environments.

What is the input bias current specification for TLV379IDR and its design impact?

TLV379IDR has a typical input bias current of ±5 pA at 25°C, with minimal variation over temperature. This ultra-low value prevents significant voltage drop across high-impedance sources such as pH electrodes, thermopiles, or photodiode transimpedance feedback networks. When designing with TLV379IDR, ensure PCB contamination control and guard traces to avoid leakage currents that could dominate the 5 pA specification in production systems.

Is TLV379IDR pin-compatible with other members of the TLVx379 family?

No-TLV379IDR (SOIC-8) is not pin-compatible with TLV379 variants in SC70-5 or SOT-23-5 packages due to differing pin counts and layouts. While electrical specifications are consistent across the family, mechanical integration requires package-specific layout. TLV2379IDR shares the same SOIC-8 footprint but uses pins 1, 2, 3, 4, 7, and 8 differently (dual-channel assignment), so direct substitution without schematic and layout revision is not possible for TLV379IDR.