Analog Devices Inc. LT6370IMS8#PBF

Overview

LT6370IMS8#PBF from Analog Devices is a gain-programmable, high-precision instrumentation amplifier delivering 25µV max input offset voltage, 0.3µV/°C max drift, and 94dB min CMRR at G = 1. It features 3.1MHz bandwidth (G = 1), integrated RFI filtering, and operates from ±2.375V to ±17.5V supplies. Used in precision bridge and thermocouple signal conditioning where DC accuracy and EMI immunity are critical.

For engineers reviewing the LT6370IMS8#PBF datasheet, LT6370IMS8#PBF pinout, LT6370IMS8#PBF application, or LT6370IMS8#PBF equivalent, key selection criteria include guaranteed input offset drift over –40°C to 85°C, single-resistor gain programming (G = 1 to >1000), and MSOP-8 package compatibility with space-constrained industrial sensor front-ends.

Technical Context

The LT6370IMS8#PBF implements an enhanced three-op-amp topology with laser-trimmed 12.1kΩ internal resistors enabling precise gain setting via a single external resistor (RG). Its proprietary bipolar process ensures matched input transistors (Q1/Q2) for low drift and 400pA max input bias current.

DC precision is enforced through on-chip automated testing for both input offset voltage drift (0.3µV/°C) and gain drift (30ppm/°C), while integrated EMI filters on +IN/–IN pins maintain accuracy under RF interference without external components.

Key Specifications

Pinout & Package

LT6370IMS8#PBF is housed in an 8-pin MSOP package (θ_JA = 163°C/W), compatible with standard surface-mount assembly and thermal management for industrial environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD8421ARMZ and INA826AIDGKR, the LT6370IMS8#PBF uniquely delivers factory-guaranteed 0.3µV/°C drift and integrated EMI filtering-critical for unshielded industrial sensor nodes where long-term calibration stability and RF immunity cannot be compromised.

Availability

LT6370IMS8#PBF is available at Aetrix Electronics and suitable for bridge amplification, thermocouple measurement, and precision data acquisition requiring stable component supply across extended temperature ranges.

Supply support for LT6370IMS8#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The LT6370IMS8#PBF belongs to Analog Devices' precision instrumentation amplifier product line, engineered specifically for high-accuracy sensor signal conditioning in harsh electromagnetic and thermal environments.

FAQ

What is the maximum gain achievable with LT6370IMS8#PBF using a single external resistor?

The LT6370IMS8#PBF supports gains from G = 1 to >1000 using a single external resistor RG, calculated as G = 1 + 24.2kΩ/RG. At G = 1000, RG = 24.3Ω - PCB layout must minimize parasitic resistance to maintain accuracy. The LT6370IMS8#PBF datasheet confirms this range applies across its full operating temperature span.

Does LT6370IMS8#PBF require external filtering for EMI immunity?

No, the LT6370IMS8#PBF integrates RFI filters on both +IN and –IN pins, eliminating the need for external RC networks. This is confirmed in the "Features" section and validated by EMI rejection performance plots (EMIRR >120dB up to 1GHz) in the LT6370IMS8#PBF datasheet.

What is the guaranteed input offset voltage drift specification for LT6370IMS8#PBF over temperature?

The LT6370IMS8#PBF guarantees ≤0.3µV/°C input offset voltage drift over the –40°C to 85°C range, verified per unit during automated final test on the MS8 package. This is explicitly stated in the Electrical Characteristics table and supported by histogram data (Figure G04).

Can LT6370IMS8#PBF operate from a single 5V supply?

Yes, the LT6370IMS8#PBF supports single-supply operation down to +4.75V (V+ to V– = 4.75V), with valid input common-mode range extending from V– + 1.8V to V+ – 1.4V. Output swing remains functional at ±2V with RL = 10kΩ, making it compatible with 5V microcontroller-based systems.

How does the REF pin function in LT6370IMS8#PBF?

The REF pin sets the output common-mode voltage for the LT6370IMS8#PBF. When grounded, output swings symmetrically around 0V; when biased to mid-supply, it enables rail-to-rail output with single-supply operation. The LT6370IMS8#PBF provides 1V/V REF gain with ±20ppm REF gain error, ensuring predictable level-shifting.