Texas Instruments TLV387DBVT

Overview

TLV387DBVT from Texas Instruments is a single-channel, high-precision zero-drift operational amplifier in a 5-pin SOT-23 package. It delivers ±10 µV max offset voltage, ±0.01 µV/°C drift, and 5.7 MHz gain bandwidth while operating from 1.7 V to 5.5 V single supply - enabling ultra-stable signal conditioning in 24-bit data acquisition systems and precision sensor front-ends.

For engineers reviewing the TLV387DBVT datasheet, TLV387DBVT pinout, TLV387DBVT application, or TLV387DBVT equivalent, key selection criteria include its rail-to-rail input extending 100 mV beyond supplies, 8.5 nV/√Hz broadband noise, 177 nVPP 0.1–10 Hz noise, 300 pA max input bias current, and guaranteed operation from –40°C to +125°C.

Technical Context

The TLV387DBVT implements proprietary auto-zeroing with internal clocking (100–150 kHz) to continuously correct input offset and drift, eliminating 1/f noise without introducing switching artifacts in most configurations. Its input stage features EMI/RFI filtering on both common-mode and differential paths, and its flat bias current over temperature minimizes calibration needs in high-impedance sensor interfaces.

This amplifier uses a chopper-stabilized core with ripple reduction technology and operates as a unity-gain stable, rail-to-rail input/output device. The common-mode input range extends 100 mV beyond both rails, and output swing reaches within 20 mV of rails under no-load conditions - critical for low-voltage, high-linearity analog signal chains feeding 16–24-bit ADCs.

Key Specifications

Pinout & Package

TLV387DBVT is housed in a 5-pin SOT-23 (DBV) package with 0.95 mm pitch, optimized for space-constrained PCB layouts and thermal performance (R_θJA = 187.1°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision op-amp applications.

Compared with OPA388IDBVR and LTC2057HMS8#PBF, TLV387DBVT uniquely combines sub-10-µV offset, 570 µA quiescent current, and 5-pin SOT-23 packaging - making it the only option meeting stringent low-power, high-accuracy, and space-constrained requirements simultaneously.

Availability

TLV387DBVT is available at Aetrix Electronics and suitable for electronic thermometer, weigh scale, and temperature transmitter applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV387DBVT 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 signal-chain components.

The TLV387DBVT belongs to TI's TLVx387 zero-drift op-amp family, engineered specifically for ultra-high-DC-accuracy applications including sensor signal conditioning, precision DAQ, and industrial process control where long-term stability and low noise are non-negotiable.

FAQ

What is the maximum operating temperature range for TLV387DBVT?

The TLV387DBVT is fully specified over the industrial temperature range of –40°C to +125°C. All key parameters-including offset voltage, drift, gain bandwidth, and input bias current-are guaranteed across this range per TI's production test data. This makes TLV387DBVT suitable for under-hood automotive, factory-floor PLC, and outdoor environmental monitoring applications where ambient extremes are expected.

Does TLV387DBVT require external compensation for unity-gain stability?

No, TLV387DBVT is internally compensated and unity-gain stable. It maintains phase margin ≥40° with 100 pF capacitive load and exhibits no phase reversal under overload conditions. The device can drive resistive loads down to 2 kΩ and capacitive loads up to 100 pF directly-eliminating need for isolation resistors or external compensation networks in standard configurations.

How does the zero-drift architecture of TLV387DBVT affect system-level noise performance?

The TLV387DBVT's zero-drift architecture eliminates 1/f noise entirely, delivering flat 8.5 nV/√Hz spectral density from 1 Hz upward and only 177 nVPP integrated noise from 0.1 Hz to 10 Hz. Unlike conventional choppers, its internal clock (100–150 kHz) is filtered and typically not observable at the output-preserving signal integrity in DC-coupled medical, scientific, and metrology applications without post-processing filtering.

Can TLV387DBVT operate from a single 1.8-V supply?

Yes, TLV387DBVT supports single-supply operation down to 1.7 V. At 1.8 V, it maintains full functionality: rail-to-rail input (extending 100 mV beyond rails), output swing within 30 mV of rails (RL = 2 kΩ), 5.7 MHz gain bandwidth, and 570 µA typical quiescent current. This enables direct integration with energy-harvesting systems and coin-cell–powered portable sensors without voltage boosting.

What is the common-mode input voltage range specification for TLV387DBVT?

TLV387DBVT features an extended common-mode input range of (V–) – 0.1 V to (V+) + 0.1 V at 1.7 V supply, and (V–) – 0.2 V to (V+) + 0.1 V at 5.5 V supply. This allows inputs to go 100 mV below ground or 100 mV above V+-critical for interfacing with unbuffered thermocouples, bridge sensors, and current-sense shunts without level-shifting circuitry.