Texas Instruments TLV387DBVR

Overview

TLV387DBVR from Texas Instruments is a single-channel, zero-drift, precision operational amplifier in a 5-pin SOT-23 package. It delivers ±10 µV max offset voltage, ±0.01 µV/°C drift, 5.7 MHz gain bandwidth, 8.5 nV/√Hz noise at 1 kHz, and rail-to-rail input extending 100 mV beyond supplies - enabling high-accuracy signal conditioning for 24-bit ADC front-ends in low-voltage industrial sensor systems.

For engineers reviewing the TLV387DBVR datasheet, TLV387DBVR pinout, TLV387DBVR application, or TLV387DBVR equivalent, key selection criteria include ultra-low drift over –40°C to +125°C, 300 pA max input bias current for high-Z sensor interfaces, EMI-filtered inputs for noisy environments, and guaranteed operation down to 1.7 V single supply.

Technical Context

The TLV387DBVR employs proprietary auto-zeroing with internal clocking (100–150 kHz) to continuously correct input offset and 1/f noise, achieving true zero-drift performance without external components. Its input stage uses matched MOSFETs with no antiparallel diodes, enabling differential input voltage up to supply rails and flat bias current vs. temperature.

This architecture supports rail-to-rail input common-mode range (V– – 0.2 V to V+ + 0.1 V at 5.5 V), rail-to-rail output swing (within 20 mV of rails, no load), and unity-gain stability with 40° phase margin into 100 pF - making it suitable for direct sensor buffering and DAC output amplification without external compensation.

Key Specifications

Pinout & Package

TLV387DBVR is housed in a 5-pin SOT-23 (DBV) package with 0.95 mm pitch, 2.9 mm × 1.6 mm footprint, and exposed pad not connected internally - optimized for space-constrained PCB layouts and thermal dissipation via board copper.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV387DBVR, OPA387AIDBVR offers tighter offset but increases power consumption by 32%, while LTC2057HS5#TRMPBF trades drift performance for broader supply compatibility - making TLV387DBVR the optimal balance of ultra-low drift, low power, and single-supply simplicity in space-constrained industrial sensors.

Availability

TLV387DBVR 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 TLV387DBVR 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 innovation in precision signal-chain components.

The TLV387DBVR belongs to TI's TLVx387 zero-drift op amp family, designed specifically for high-resolution sensor signal conditioning and 24-bit data acquisition where long-term DC stability and low-noise performance are mandatory.

FAQ

What is the maximum operating temperature range for TLV387DBVR?

The TLV387DBVR is specified over the industrial temperature range of –40°C to +125°C. All electrical characteristics - including offset voltage drift (±0.01 µV/°C), input bias current (≤300 pA), and open-loop gain (≥115 dB) - are guaranteed across this full range, making TLV387DBVR suitable for under-hood automotive sensors and factory-floor instrumentation without derating.

Does TLV387DBVR require external capacitors for stability?

No, TLV387DBVR is unity-gain stable and does not require external compensation capacitors. It maintains ≥40° phase margin with capacitive loads up to 100 pF and exhibits no phase reversal. However, a 100-nF ceramic decoupling capacitor between V+ and V–, placed within 1 cm of the DBV package, is mandatory to suppress supply noise and ensure specified PSRR performance.

Can TLV387DBVR drive ADC inputs directly?

Yes, TLV387DBVR is optimized for direct connection to high-resolution ADCs. Its rail-to-rail output swings within 20 mV of supply rails (no load), its 5.7 MHz bandwidth supports settling in <2.5 µs to 0.01%, and its 177 nVPP 0.1–10 Hz noise ensures minimal contribution to 24-bit ADC effective resolution - all verified in TI's SBOSA91B datasheet Figure 5-26 and Section 7.1.

How does the internal chopping clock affect TLV387DBVR performance?

The TLV387DBVR uses an internal 100–150 kHz auto-zeroing clock to cancel offset and 1/f noise. This clock is filtered and typically not observable at the output, but can induce small charge-injection pulses. To minimize impact, keep series input resistances ≤100 kΩ and match impedances on +IN and –IN pins - guidance confirmed in Section 7.1.1 of the TLV387DBVR datasheet.

Is TLV387DBVR compatible with lead-free reflow profiles?

Yes, TLV387DBVR (DBV package) is rated for standard JEDEC J-STD-020 lead-free reflow, with peak temperature up to 260°C for 30 seconds. The device's moisture sensitivity level (MSL) is 1 - unlimited floor life at ≤30°C/85% RH - and its thermal resistance (RθJA = 187.1°C/W) has been validated under IPC/JEDEC standards for SOT-23 packages.