Analog Devices Inc. LTC6078AIMS8#PBF

Overview

LTC6078AIMS8#PBF from Analog Devices (formerly Linear Technology) is a dual-channel, micropower, precision CMOS operational amplifier with rail-to-rail input and output swing. It delivers 25µV max offset voltage, 0.7µV/°C max drift, 54µA per amplifier supply current at 3V, and 95dB min CMRR - enabling high-accuracy signal conditioning in battery-powered instrumentation and sensor interfaces.

For engineers reviewing the LTC6078AIMS8#PBF datasheet, LTC6078AIMS8#PBF pinout, LTC6078AIMS8#PBF application, or LTC6078AIMS8#PBF equivalent, this page provides verified package mapping (MSOP-8), confirmed dual-amplifier topology, validated shutdown functionality, precise thermal performance data (–40°C to 125°C), and real-world application constraints for photodiode, thermocouple, and pH probe circuits.

Technical Context

The LTC6078AIMS8#PBF integrates complementary PMOS/NMOS input stages to achieve true rail-to-rail common-mode input range (V– to V+), with seamless transition between transistor pairs near 0.9V–1.3V below V+. Its low-noise (16nV/√Hz @ 1kHz), low-bias-current (≤1pA @ 25°C) architecture supports high-impedance source interfacing without guard-ring degradation.

Each amplifier features independent active-low shutdown pins (SHDN_A/SHDN_B) only available in the DFN-10 variant - not present on the MSOP-8 package. The LTC6078AIMS8#PBF operates from 2.7V to 5.5V, maintains 115dB large-signal voltage gain, and achieves 0.05V/µs slew rate with 420kHz gain-bandwidth product under 100kΩ load.

Key Specifications

Pinout & Package

Package: 8-lead plastic MSOP (MS8), 3mm × 3mm body, exposed pad connected to V–, θ_JA = 200°C/W, rated for 150°C junction temperature.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LTC6078AIMS8#PBF, LTC2051IMS8#PBF trades 3× power for 8× lower drift, while LT6012IMS8#PBF sacrifices precision for extended supply range and ruggedness - making LTC6078AIMS8#PBF optimal for µA-budget, high-Z, wide-temperature analog front-ends.

Availability

LTC6078AIMS8#PBF is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor nodes, and medical diagnostics equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC6078AIMS8#PBF 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

Analog Devices acquired Linear Technology in 2017 and maintains its legacy of high-performance analog ICs for precision signal conditioning, power management, and data conversion.

The LTC6078 series belongs to Linear's micropower precision op amp product line, designed specifically for battery-operated test equipment, environmental sensors, and portable medical devices demanding µV-level accuracy at nanoamp quiescent current.

FAQ

What is the maximum operating temperature range for the LTC6078AIMS8#PBF?

The LTC6078AIMS8#PBF is specified for operation from –40°C to 125°C, with guaranteed performance across this full industrial and extended automotive temperature range. Its MSOP-8 package has a maximum junction temperature of 150°C, and thermal resistance θ_JA is 200°C/W - requiring careful PCB copper area design for sustained 125°C ambient operation. This rating is confirmed in the Absolute Maximum Ratings table and applies to all LTC6078 variants with 'I' or 'H' suffixes.

Does the LTC6078AIMS8#PBF include shutdown functionality?

No, the LTC6078AIMS8#PBF does not include shutdown pins. Shutdown capability (SHDN_A/SHDN_B) is exclusive to the LTC6078DD (DFN-10) package variant, as explicitly stated in the datasheet's "Pin Functions" section and functional block diagram. The MSOP-8 package (LTC6078AIMS8#PBF) has only eight pins: two outputs, four inputs, and two supplies - with no dedicated shutdown terminals.

What is the typical input bias current of the LTC6078AIMS8#PBF at 85°C?

The typical input bias current of the LTC6078AIMS8#PBF is ≤50pA at temperatures up to 85°C, as specified in the "Maximum Input Bias" bullet under Features and confirmed in the Electrical Characteristics table (IB column, C/I suffix row). At 25°C, it is ≤1pA. This graded specification reflects CMOS process behavior and is critical for maintaining accuracy in high-impedance pH and thermistor circuits at elevated temperatures.

Can the LTC6078AIMS8#PBF drive capacitive loads, and if so, what is the limit?

Yes, the LTC6078AIMS8#PBF can drive capacitive loads up to 200pF in unity-gain configuration, as documented in the Applications Information section. For higher gains, the allowable capacitance increases. Stability is further enhanced by adding a small series resistor (e.g., 10–50Ω) between the output and load - a technique validated in Figure 19 (Output Impedance vs Frequency) and recommended for driving ADC input capacitors or long PCB traces.

How does the rail-to-rail input stage of the LTC6078AIMS8#PBF operate across the full supply range?

The LTC6078AIMS8#PBF uses a composite input stage combining PMOS and NMOS differential pairs to achieve true rail-to-rail common-mode input range (V– to V+). As described in the Applications Information section, the NMOS pair conducts at high common-mode voltages (near V+), while the PMOS pair activates at low common-mode voltages (near V–), with transition occurring between 0.9V and 1.3V below V+. This architecture eliminates input crossover distortion and ensures consistent bias current and offset behavior across the entire range - critical for precision single-supply sensor interfaces.