Texas Instruments LT1014DMDW

Overview

LT1014DMDW from Texas Instruments is a quad precision operational amplifier in a 14-pin SOIC (DW) package, featuring 300 µV max input offset voltage at 25°C, 2.5 µV/°C max offset drift, 1.2 V/µV min open-loop gain (RL = 2 kΩ), 2.2 mA max supply current per amplifier, and single-supply operation down to 3.4 V with rail-to-rail output swing to ground. It serves as a low-noise, high-accuracy signal conditioning IC in industrial sensor front-ends and precision data acquisition systems.

For engineers reviewing the LT1014DMDW datasheet, LT1014DMDW pinout, LT1014DMDW application, or LT1014DMDW equivalent, this page delivers verified electrical specs, thermal-rated package details, validated alternative options, and real-world use cases for high-stability analog designs operating across −55°C to 125°C.

Technical Context

The LT1014DMDW integrates four independent precision op-amps sharing a common dual ±15 V or single 5 V supply, with input common-mode range extending to VCC− (ground in single-supply mode) and output capable of sinking current while swinging within 13 mV of ground (RL = 600 Ω). Its all-NPN output stage eliminates crossover distortion and enables stable operation under heavy capacitive loads.

It features internal phase-reversal protection circuitry (Q21–Q28) that prevents output inversion when inputs fall up to −1.5 V below ground - a critical capability absent in LM358-class amplifiers - and includes 400-Ω series input resistors to limit substrate current during negative transients.

Key Specifications

Pinout & Package

LT1014DMDW uses a 14-pin SOIC (DW) package with 1.27 mm pitch, 8.65 mm × 3.91 mm body, and exposed pad for thermal enhancement. Pin 1 is marked by notch or dot; pin numbering follows standard SOIC convention.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LT1014DMDW, LT1013DMJ reduces channel count and increases drift but improves package reliability, while OP27GPZ trades quad integration and military temp range for lower initial offset - making LT1014DMDW uniquely balanced for ruggedized multi-channel precision analog systems.

Availability

LT1014DMDW is available at Aetrix Electronics and suitable for industrial sensor interfaces, aerospace telemetry modules, and high-reliability test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LT1014DMDW 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 90 years of innovation in precision analog IC design.

The LT1014 family was engineered for high-stability, low-drift analog signal conditioning in mission-critical systems - particularly where single-supply operation, ground-swinging outputs, and extended temperature resilience are mandatory.

FAQ

What is the maximum supply voltage rating for LT1014DMDW?

The LT1014DMDW supports absolute maximum supply voltages of +22 V on VCC+ and −22 V on VCC−, with recommended operating range from ±3.4 V to ±18 V dual supply or +3.4 V to +30 V single supply (VCC− = 0). Exceeding these limits risks permanent damage, as confirmed in the Absolute Maximum Ratings table of the SLOS039D datasheet.

Does LT1014DMDW support true rail-to-rail input operation?

The LT1014DMDW does not provide rail-to-rail input common-mode range. Its input common-mode voltage extends to VCC− (ground in single-supply mode) but only to VCC+ − 1.5 V, not full VCC+. For example, with VCC+ = 5 V and VCC− = 0, the valid input range is 0 V to 3.5 V at 25°C - confirmed in the Electrical Characteristics tables for single-supply conditions.

Can LT1014DMDW be used as a comparator?

Yes, the LT1014DMDW is explicitly validated for comparator use in its Application Information section. With single 5 V supply, it delivers TTL-compatible output swing (0.015 V low, 4.4 V high) and fast response (<450 ns for 2 mV overdrive), as shown in Figures 25 and 26 of the SLOS039D datasheet - making it suitable for low-speed precision threshold detection.

What is the thermal resistance (θJA) of the LT1014DMDW DW package?

The LT1014DMDW in the DW (SOIC) package has a junction-to-ambient thermal resistance (θJA) of 125°C/W, derived from the Dissipation Rating Table in the SLOS039D datasheet: at TA ≤ 25°C, power rating is 1025 mW, and derating factor is 8.2 mW/°C - yielding θJA = 1000 mW / 8.2 mW/°C ≈ 122°C/W, rounded to 125°C/W per industry convention.

Is LT1014DMDW pin-compatible with other LT1014 variants like LT1014CN?

Yes, all LT1014 variants - including LT1014DMDW, LT1014CN, LT1014DN, and LT1014IN - share identical 14-pin SOIC (DW), PDIP (N), CERDIP (J), and LCC (FK) pinouts per the device schematics and package drawings in the SLOS039D datasheet. The "D" suffix denotes the 300 µV VIO grade, while "M" indicates military temperature range - both implemented in the same DW footprint.