Analog Devices Inc. LTC6078IDD#TRPBF

Overview

LTC6078IDD#TRPBF from Analog Devices (formerly Linear Technology) is a dual micropower precision CMOS operational amplifier with rail-to-rail input and output swing, 25µV max offset voltage at 25°C, 0.7µV/°C max offset drift, and 54µA per amplifier supply current at 3V. It operates from 2.7V to 5.5V and is optimized for high-impedance sensor signal conditioning in battery-powered instrumentation.

For engineers reviewing the LTC6078IDD#TRPBF datasheet, LTC6078IDD#TRPBF pinout, LTC6078IDD#TRPBF application, or LTC6078IDD#TRPBF equivalent, this page delivers verified specifications, package mapping, thermal performance data, shutdown behavior, and real-world design context for low-power precision analog circuits.

Technical Context

The LTC6078IDD#TRPBF integrates dual independent amplifiers sharing a common 10-lead DFN (3mm × 3mm) package with exposed V– pad. Its input stage combines PMOS and NMOS differential pairs to achieve true rail-to-rail common-mode range (V– to V+), while internal trimming ensures ≤25µV offset and <0.7µV/°C drift over –40°C to 125°C.

Each amplifier features active-low shutdown pins (SHDN_A and SHDN_B), delivering <2µA shutdown current and 50µs turn-on time. The device maintains 95dB min CMRR and 100dB min PSRR across 2.7V–5.5V supplies, with 16nV/√Hz input noise density at 1kHz and 420kHz gain-bandwidth product under 100kΩ load.

Key Specifications

Pinout & Package

Package: 10-lead plastic DFN (3mm × 3mm), exposed metal pad connected to V–, θ_JA = 43°C/W, TJ_MAX = 125°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LTC6078IMS8, the LTC6078IDD#TRPBF adds independent shutdown control and superior thermal performance in a smaller footprint, while ADA4522-2 trades 33× higher supply current for zero-drift stability - making LTC6078IDD#TRPBF optimal for portable, long-life precision sensing.

Availability

LTC6078IDD#TRPBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial sensor nodes, and medical diagnostics equipment requiring stable component supply, extended temperature operation (–40°C to 125°C), and long-term parametric consistency.

Supply support for LTC6078IDD#TRPBF 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 precision analog portfolio with rigorous qualification and long-term product support.

The LTC6078 series belongs to Linear's micropower precision op-amp family, designed specifically for high-impedance, low-drift signal conditioning in energy-constrained and thermally demanding applications.

FAQ

What is the maximum operating temperature range for the LTC6078IDD#TRPBF?

The LTC6078IDD#TRPBF is rated for operation from –40°C to 125°C, with guaranteed performance across this full range for parameters marked with ● in the datasheet. Its DFN package has a maximum junction temperature of 125°C and thermal resistance θ_JA = 43°C/W, making it suitable for under-hood automotive and industrial control environments where ambient temperatures exceed 85°C.

Does the LTC6078IDD#TRPBF support rail-to-rail input and output simultaneously?

Yes, the LTC6078IDD#TRPBF supports true rail-to-rail input common-mode range (V– to V+) and rail-to-rail output swing (V– to V+) simultaneously. This is achieved via complementary PMOS/NMOS input stage topology, enabling full utilization of supply rails in single-supply configurations - critical for interfacing with 3.3V or 5V ADC references without headroom loss.

How does the shutdown feature work on the LTC6078IDD#TRPBF?

The LTC6078IDD#TRPBF provides two independent active-low shutdown pins: SHDN_A (Pin 6) and SHDN_B (Pin 5). When pulled ≤0.8V, each amplifier enters shutdown mode, reducing supply current to <2µA per channel while placing its output in high-impedance state. Internal pull-up current sources hold both pins at V+ when floating, ensuring normal operation without external biasing.

Can the LTC6078IDD#TRPBF drive capacitive loads, and what is the limit?

Yes, the LTC6078IDD#TRPBF can drive capacitive loads up to 200pF in unity-gain configuration. Driving capability improves at higher closed-loop gains. For loads exceeding 200pF, adding a small series resistor (e.g., 10–50Ω) between the output and load restores stability - a technique validated in the datasheet's "Capacitive Load" section and typical performance curves.

What is the input bias current specification for the LTC6078IDD#TRPBF at elevated temperatures?

The LTC6078IDD#TRPBF guarantees input bias current ≤50pA at temperatures ≤85°C and ≤350pA at 125°C. At 25°C, typical IB is 0.2pA with a maximum of 1pA - among the lowest available for CMOS op-amps. This ultra-low bias enables direct interfacing with high-impedance sensors (e.g., pH electrodes, photodiodes) without guard-ring degradation or leakage-induced errors.