LT6650 - Micropower, 400mV Reference with Rail-to-Rail Buffer Amplifier in SOT-23
Features
- Low Quiescent Current 5.6µA (typical)
- Wide Supply Range: 1.4V to 18V
- 400mV Reference ±1% Maximum Accuracy Over Temperature at 5V
- Rail-to-Rail Buffer Amplifier
- 0.5% 400mV Maximum Initial Accuracy at 5V
- Shunt Configurable
- Sinks and Sources Current
- Wide Operational Range –40°C to 125°C
- Externally Adjustable Output Voltage
- Low Profile 1mm 5-lead SOT-23 (ThinSOT™) Package
AEC-Q100 data available for specific packages
Typical Application
Description
The LT6650 is a micropower, low voltage 400mV reference. Operating with supplies from 1.4V up to 18V, the device draws only 5.6µA typical, making it ideal for low voltage systems as well as handheld instruments and industrial control systems. With only two resistors the internal buffer amplifier can scale the 400mV reference to any desired value up to the supply voltage.
The reference is post package-trimmed to increase the output accuracy. The output can sink and source 200µA over temperature. Quiescent power dissipation is 28µW. Stability is ensured with any output capacitor of 1µF or higher.
The LT6650 is the lowest voltage series reference available in the 5-lead SOT-23 package.
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 |
|---|---|---|---|---|---|
| LT6650CS5#PBF | SOT-23 | S5 | C | 05-08-1635 | Yes |
| LT6650CS5#TRMPBF | SOT-23 | S5 | C | 05-08-1635 | Yes |
| LT6650CS5#TRPBF | SOT-23 | S5 | C | 05-08-1635 | Yes |
| LT6650HS5#PBF | SOT-23 | S5 | H | 05-08-1635 | Yes |
| LT6650HS5#TRMPBF | SOT-23 | S5 | H | 05-08-1635 | Yes |
| LT6650HS5#TRPBF | SOT-23 | S5 | H | 05-08-1635 | Yes |
| LT6650IS5#PBF | SOT-23 | S5 | I | 05-08-1635 | Yes |
| LT6650IS5#TRMPBF | SOT-23 | S5 | I | 05-08-1635 | Yes |
| LT6650IS5#TRPBF | SOT-23 | S5 | I | 05-08-1635 | 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 | |
|---|---|---|---|---|---|---|
| LT6650CS5#PBF | SOT-23 | C | $1.88 | Yes | ||
| LT6650CS5#TRMPBF | SOT-23 | C | $1.88 | $1.27 | Yes | |
| LT6650CS5#TRPBF | SOT-23 | C | $1.88 | $1.25 | Yes | |
| LT6650HS5#PBF | SOT-23 | H | $2.41 | Yes | ||
| LT6650HS5#TRMPBF | SOT-23 | H | $2.41 | $1.71 | Yes | |
| LT6650HS5#TRPBF | SOT-23 | H | $2.41 | $1.69 | Yes | |
| LT6650IS5#PBF | SOT-23 | I | $2.41 | Yes | ||
| LT6650IS5#TRMPBF | SOT-23 | I | $2.41 | $1.71 | Yes | |
| LT6650IS5#TRPBF | SOT-23 | I | $2.41 | $1.69 | 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.Click here to view our complete list of demo boards
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 | |
|---|---|---|---|---|---|---|
| LT6650HS5#PBF | SOT-23 | H | $2.41 | Yes | ||
| LT6650HS5#TRMPBF | SOT-23 | H | $2.41 | $1.71 | Yes | |
| LT6650HS5#TRPBF | SOT-23 | H | $2.41 | $1.69 | Yes | |
| LT6650IS5#PBF | SOT-23 | I | $2.41 | Yes | ||
| LT6650IS5#TRMPBF | SOT-23 | I | $2.41 | $1.71 | Yes | |
| LT6650IS5#TRPBF | SOT-23 | I | $2.41 | $1.69 | Yes | |
| Buy Now • Request Samples | ||||||
Applications
- Battery-Operated Systems
- Handheld Instruments
- Industrial Control Systems
- Data Acquisition Systems
- Negative Voltage References
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Design Tools
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LT6650
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.
