Texas Instruments TLV2387DR

Overview

TLV2387DR from Texas Instruments is a dual-channel, high-precision, zero-drift operational amplifier in an 8-pin SOIC 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 high-fidelity signal conditioning in low-voltage, battery-powered instrumentation such as electronic thermometers and weigh scales.

For engineers reviewing the TLV2387DR datasheet, TLV2387DR pinout, TLV2387DR application, or TLV2387DR equivalent, key selection criteria include ultra-low drift over –40°C to +125°C, rail-to-rail input extending 100 mV beyond supplies, 300 pA max input bias current, and EMI-filtered inputs for robust sensor front-end performance.

Technical Context

The TLV2387DR implements proprietary auto-zeroing with internal clocking (100–150 kHz) to continuously correct input offset and eliminate 1/f noise - achieving 177 nVPP (0.1 Hz–10 Hz) and 8.5 nV/√Hz broadband noise. Its input stage features matched CMOS inputs without antiparallel diodes, enabling true rail-to-rail common-mode range and high-impedance operation.

Each amplifier channel operates independently with unity-gain stability, 2.8 V/µs slew rate, and 1.5 µs settling to 0.1% - supporting precision DC-coupled amplification and buffering of 16- to 24-bit ADCs and DACs without linearity degradation.

Key Specifications

Pinout & Package

TLV2387DR is housed in an 8-pin SOIC (D) package with exposed thermal pad connected to V−. Pin functions are validated per TI SBOSA91B Rev. December 2023.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2387DR, OPA2189IDR trades 2× higher supply current for 10× lower offset, while AD8629ARZ offers lower cost but fails to meet the 0.01 µV/°C drift requirement for high-end instrumentation - making TLV2387DR the optimal balance of precision, stability, and EMI resilience in industrial-grade analog front-ends.

Availability

TLV2387DR 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 product lifecycles.

Supply support for TLV2387DR 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 over 50 years of innovation in precision signal chain components.

The TLVx387 family was designed specifically for high-resolution sensor signal conditioning and data acquisition systems demanding ultra-low drift, low noise, and robust operation from 1.7 V to 5.5 V supplies.

FAQ

What is the maximum operating temperature range for TLV2387DR?

The TLV2387DR is specified over the industrial temperature range of –40°C to +125°C. All electrical characteristics - including offset voltage, drift, gain bandwidth, and input bias current - are guaranteed across this full range per TI SBOSA91B. This makes TLV2387DR suitable for under-hood automotive sensors, industrial PLC modules, and outdoor environmental monitoring equipment where ambient temperatures exceed 85°C.

Does TLV2387DR support rail-to-rail input and output?

Yes, TLV2387DR supports rail-to-rail input with common-mode voltage range extending 100 mV beyond both supply rails (V− − 100 mV to V+ + 100 mV), and rail-to-rail output with typical swing within 20 mV of each rail under no-load conditions. This capability is explicitly verified in Section 5.7 of the TLV2387DR datasheet and enables direct interfacing with low-voltage sensors and ADCs without level-shifting circuitry.

Is TLV2387DR compatible with single-supply operation at 1.8 V?

Yes, TLV2387DR is fully functional at 1.8 V single supply - well within its specified 1.7 V to 5.5 V operating range. At 1.8 V, it maintains ±10 µV max offset, 5.7 MHz gain bandwidth, and 300 pA max input bias current. This low-voltage capability allows direct integration into energy-harvesting systems and battery-powered IoT edge nodes where supply regulation is omitted to reduce BOM count and power loss.

How does the internal zero-drift clock affect system design?

The TLV2387DR uses an internal 100–150 kHz auto-zeroing clock to correct input offset. While filtered and typically non-intrusive, charge injection pulses can appear at the inputs. To prevent amplified clock artifacts, avoid series resistors >100 kΩ on either input and match impedances between +IN and −IN pins. This guidance is documented in Section 7.1.1 of the TLV2387DR datasheet and confirmed in application note SBOSA91B.

What thermal considerations apply to TLV2387DR in SOIC-8 (D) package?

For TLV2387DR in SOIC-8 (D) package, junction-to-ambient thermal resistance (RθJA) is 127.9°C/W. To maintain TJ < 125°C at 125°C ambient, total power dissipation must remain below 47 mW (i.e., <83 µA per amplifier at 5.5 V). Proper PCB layout - including minimum 1-inch² copper pour connected to Pin 4 (V−) and thermal pad - is essential to achieve this rating, as specified in Section 5.5 of the TLV2387DR datasheet.