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
AEC-Q100 data available for specific packages
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 |
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 Now • Request Samples | ||||||
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 | |||
Designed for Automotive and Transportation Applications
AEC-Q100 data is available for these specific part numbers. Please contact your local sales representative for more information regarding reliability reports 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 Now • Request Samples | ||||||
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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Design Tools
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LT1783
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
