LT1784

PRODUCTION

2.5MHz, Over-The-Top Low Power, Rail-to-Rail Input and Output Op Amp in SOT-23

Part Models: 8
1ku List Price: Starting From $1.09

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Overview

Operates with Inputs Above V⁺
Rail-to-Rail Input and Output
Gain Bandwidth Product: 2.5MHz
Slew Rate: 2.1V/µs
Low Input Offset Voltage: 3.5mV Max
High Voltage Gain: 1000V/mV
Single Supply Input Range: 0V to 18V
Specified on 3V, 5V and ±5V Supplies
Reverse Battery Protection to 18V
Low Power: 750µA Supply Current Max
Output Shutdown on 6-Lead Version
High Output Current: 15mA Min
Operating Temperature Range: –40°C to 85°C
Low Profile (1mm) ThinSOT^™ Package

The LT1784 is a 2.5MHz op amp available in the small SOT-23 package that operates on all single and split supplies with a total voltage of 2.5V to 18V. The amplifier draws less than 750µA of quiescent current and has reverse battery protection, drawing negligible current for reverse supply voltages up to 18V.

The input range of the LT1784 includes ground, and a unique feature of this device is its Over-The-Top^® operation capabilitity with either or both of its inputs above the positive rail. The inputs handle 18V both differential and common mode, independent of supply voltage. The input stage incorporates phase reversal protection to prevent false outputs from occurring even when the inputs are 9V below the negative supply.

The LT1784 can drive loads up to 15mA and still maintain rail-to-rail capability. A shutdown feature on the 6-lead version can disable the part, making the output high impedance and reducing quiescent current to 5µA. The LT1784 op amp is available in the 5- and 6-lead SOT-23 packages. For applications requiring lower power, refer to the LT1782 and LT1783 data sheets.

Applications

Portable Instrumentation
Battery-Powered Systems
Sensor Conditioning
Supply Current Sensing
MUX Amplifiers
4mA to 20mA Transmitters

Part Models: 8
1ku List Price: Starting From $1.09

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
LT1784CS5#TRMPBF	5-Lead TSOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1784CS5#TRPBF	5-Lead TSOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1784CS6#TRMPBF	6-Lead TSOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1784CS6#TRPBF	6-Lead TSOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1784IS5#TRMPBF	5-Lead TSOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1784IS5#TRPBF	5-Lead TSOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1784IS6#TRMPBF	6-Lead TSOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LT1784IS6#TRPBF	6-Lead TSOT-23	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

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

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Tools & Simulations

LTspice 1

LTC3625/LT1784/LT1634 Demo Circuit - Solar Powered SCAP Charger with MPPT

Models for the following parts are available in LTspice:

LT1784

Analog Filter Wizard

Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.

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.