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LT1789

PRODUCTION

Micropower, Single Supply Rail-to-Rail Output Instrumentation Amplifier

Data Sheet Product Selection Table

Part Models: 8
1ku List Price: Starting From $3.84

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Overview

Micropower: 95μA Supply Current Max
Low Input Offset Voltage: 100μV Max
Low Input Offset Voltage Drift: 0.5μV/°C Max
Single Gain Set Resistor:

G = 1 to 1000 (LT1789-1)
G = 10 to 1000 (LT1789-10)

Inputs Common Mode to V^–
Wide Supply Range: 2.2V to 36V Total Supply
CMRR at G = 10: 96dB Min
Gain Error: G = 10, 0.25% Max
Gain Nonlinearity: G = 10, 40ppm Max
Input Bias Current: 40nA Max
PSRR at G = 10: 100dB Min
1kHz Voltage Noise: 48nV/√Hz
0.1Hz to 10Hz Noise: 1.5μV_P-P

The LT1789-1/LT1789-10 are micropower, precision instrumentation amplifiers that are optimized for single supply operation from 2.2V to 36V. The quiescent current is 95μA max, the inputs common mode to ground and the output swings within 110mV of ground. The gain is set with a single external resistor for a gain range of 1 to 1000 for the LT1789-1 and 10 to 1000 for the LT1789-10.

The high accuracy of the LT1789-1 (40ppm maximum nonlinearity and 0.25% max gain error) is unmatched by other micropower instrumentation amplifiers. The LT1789-10 maximizes both the input common mode range and dynamic output range when an amplification of 10 or greater is required, allowing precise signal processing where other instrumentation amplifiers fail to operate. The LT1789-1/LT1789-10 are laser trimmed for very low input offset voltage, low input offset voltage drift, high CMRR and high PSRR. The output can handle capacitive loads up to 400pF (LT1789-1), 1000pF (LT1789-10) in any gain configuration while the inputs are ESD protected up to 10kV (human body).

The LT1789-1/LT1789-10 are offered in the 8-pin SO package, requiring significantly less PC board area than discrete multi op amp and resistor designs.

Applications

Portable Instrumentation
Bridge Amplifiers
Strain Gauge Amplifiers
Thermocouple Amplifiers
Differential to Single-Ended Converters
Medical Instrumentation

Part Models: 8
1ku List Price: Starting From $3.84

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LT1789CS8-1#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1789CS8-1#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1789CS8-10#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1789CS8-10#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1789IS8-1#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1789IS8-1#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1789IS8-10#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1789IS8-10#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 24, 2024 - 24_0246 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package
		PCN24_0246_Form Material_Report Marking Comparison Delta Qualification Matrix
LT1789CS8-1#PBF	PRODUCTION
LT1789CS8-1#TRPBF	PRODUCTION
LT1789CS8-10#PBF	PRODUCTION
LT1789CS8-10#TRPBF	PRODUCTION
LT1789IS8-1#PBF	PRODUCTION
LT1789IS8-1#TRPBF	PRODUCTION
LT1789IS8-10#PBF	PRODUCTION
LT1789IS8-10#TRPBF	PRODUCTION
Oct 12, 2022 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)
		PCN22_0255_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT1789CS8-1#PBF	PRODUCTION
LT1789CS8-1#TRPBF	PRODUCTION
LT1789CS8-10#PBF	PRODUCTION
LT1789CS8-10#TRPBF	PRODUCTION
LT1789IS8-1#PBF	PRODUCTION
LT1789IS8-1#TRPBF	PRODUCTION
LT1789IS8-10#PBF	PRODUCTION
LT1789IS8-10#TRPBF	PRODUCTION
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
		PCN21_0026_Form Material_Report Delta Qualification Matrix
LT1789CS8-1#PBF	PRODUCTION
LT1789CS8-1#TRPBF	PRODUCTION
LT1789CS8-10#PBF	PRODUCTION
LT1789CS8-10#TRPBF	PRODUCTION
LT1789IS8-1#PBF	PRODUCTION
LT1789IS8-1#TRPBF	PRODUCTION
LT1789IS8-10#PBF	PRODUCTION
LT1789IS8-10#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LT1789-1
LT1789-10

In-Amp Diamond Plot Tool

The Diamond Plot Tool is a web application that generates a configuration-specific Output Voltage Range vs. Input Common-Mode Voltage graph, also known as the Diamond Plot, for Analog Devices Instrumentation Amplifiers. Based on user inputs such as supply voltage, gain, and input signal range, the tool detects saturation and recommends in-amps for which the input signal is in-range and the configuration is valid. Avoid saturation, find the best in-amp for your design, and save time.

Open Tool

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.