LT1783 - 1.25MHz, Over-The-Top Micropower, Rail-to-Rail Input and Output Op Amp in SOT-23

Features

  • Operates with Inputs Above V+
  • Rail-to-Rail Input and Output
  • Micropower: 300µA Supply Current Max
  • Operating Temperature Range: –40°C to 125°C
  • Gain Bandwidth product: 1.25MHz
  • Slew Rate: 0.42V/µs
  • Low Input Offset Voltage: 800µV Max
  • Single Supply Input Range: 0V to 18V
  • High Output Current: 18mA Min
  • Specified on 3V, 5V and ±5V Supplies
  • Output Shutdown on 6-Lead Version
  • Reverse Battery Protection to 18V
  • High Voltage Gain: 1500V/mV
  • Low Profile (1mm) ThinSOT™ Package
Designed for Automotive and Transportation Applications
AEC-Q100 generic family data available for specific packages


Typical Application

LT1783 Typical Application
LT1783 Typical Application

Description

The LT1783 is a 1.25MHz 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 300µA of quiescent current and has reverse battery protection, drawing negligible current for reverse supply voltages up to 18V.

The input range of the LT1783 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 LT1783 can drive loads up to 18mA 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 LT1783 op amp is available in the 5- and 6-lead SOT-23 packages. For applications requiring lower power, refer to the LT1782.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LT1783CS5#PBF SOT-23 S5 C 05-08-1635 Yes
LT1783CS5#TRMPBF SOT-23 S5 C 05-08-1635 Yes
LT1783CS5#TRPBF SOT-23 S5 C 05-08-1635 Yes
LT1783CS6#PBF SOT-23 S6 C 05-08-1636 Yes
LT1783CS6#TRMPBF SOT-23 S6 C 05-08-1636 Yes
LT1783CS6#TRPBF SOT-23 S6 C 05-08-1636 Yes
LT1783HS5#PBF SOT-23 S5 H 05-08-1635 Yes
LT1783HS5#TRMPBF SOT-23 S5 H 05-08-1635 Yes
LT1783HS5#TRPBF SOT-23 S5 H 05-08-1635 Yes
LT1783HS6#PBF SOT-23 S6 H 05-08-1636 Yes
LT1783HS6#TRMPBF SOT-23 S6 H 05-08-1636 Yes
LT1783HS6#TRPBF SOT-23 S6 H 05-08-1636 Yes
LT1783IS5#PBF SOT-23 S5 I 05-08-1635 Yes
LT1783IS5#TRMPBF SOT-23 S5 I 05-08-1635 Yes
LT1783IS5#TRPBF SOT-23 S5 I 05-08-1635 Yes
LT1783IS6#PBF SOT-23 S6 I 05-08-1636 Yes
LT1783IS6#TRMPBF SOT-23 S6 I 05-08-1636 Yes
LT1783IS6#TRPBF SOT-23 S6 I 05-08-1636 Yes


LT1783 Package Drawing
LT1783 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LT1783CS5#PBF SOT-23 C $1.37 Yes
LT1783CS5#TRMPBF SOT-23 C $1.37 $1.12 Yes
LT1783CS5#TRPBF SOT-23 C $1.37 $1.10 Yes
LT1783CS6#PBF SOT-23 C $1.57 Yes
LT1783CS6#TRMPBF SOT-23 C $1.57 $1.32 Yes
LT1783CS6#TRPBF SOT-23 C $1.57 $1.30 Yes
LT1783HS5#PBF SOT-23 H $1.87 Yes
LT1783HS5#TRMPBF SOT-23 H $1.87 $1.58 Yes
LT1783HS5#TRPBF SOT-23 H $1.87 $1.56 Yes
LT1783HS6#PBF SOT-23 H $2.02 Yes
LT1783HS6#TRMPBF SOT-23 H $2.02 $1.73 Yes
LT1783HS6#TRPBF SOT-23 H $2.02 $1.71 Yes
LT1783IS5#PBF SOT-23 I $1.67 Yes
LT1783IS5#TRMPBF SOT-23 I $1.67 $1.43 Yes
LT1783IS5#TRPBF SOT-23 I $1.67 $1.41 Yes
LT1783IS6#PBF SOT-23 I $1.87 Yes
LT1783IS6#TRMPBF SOT-23 I $1.97 $1.63 Yes
LT1783IS6#TRPBF SOT-23 I $1.87 $1.61 Yes
Buy NowRequest Samples
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC417B DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp $25.00
DC479A LT3781EG, LTC1698EGN, LT1783CS5 | Isolated Synchronous, Forward Converter, Vin=36V-72V, Vout=3.3V @ 15A $75.00
DC617A LT3781EG LTC1698EGN LT1783CS5 | Isolated Synchronous Forward Converter, +Vin = 36V - 72V, +Vout = 2.5V @ 20A, Quarter Brick footprint $75.00
Buy Now
Click here to view our complete list of demo boards

Designed for Automotive and Transportation Applications

Please contact your local sales representative for more information regarding reliability reports and AEC-Q100 data or to inquire about parts that are not included. For more information, view our Automotive and Transportation page

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LT1783HS5#PBF SOT-23 H $1.87 Yes
LT1783HS5#TRMPBF SOT-23 H $1.87 $1.58 Yes
LT1783HS5#TRPBF SOT-23 H $1.87 $1.56 Yes
LT1783HS6#PBF SOT-23 H $2.02 Yes
LT1783HS6#TRMPBF SOT-23 H $2.02 $1.73 Yes
LT1783HS6#TRPBF SOT-23 H $2.02 $1.71 Yes
LT1783IS5#PBF SOT-23 I $1.67 Yes
LT1783IS5#TRMPBF SOT-23 I $1.67 $1.43 Yes
LT1783IS5#TRPBF SOT-23 I $1.67 $1.41 Yes
LT1783IS6#PBF SOT-23 I $1.87 Yes
LT1783IS6#TRMPBF SOT-23 I $1.97 $1.63 Yes
LT1783IS6#TRPBF SOT-23 I $1.87 $1.61 Yes
Buy NowRequest Samples
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Applications

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

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