LT1634 - Micropower Precision Shunt Voltage Reference
Features
- Initial Voltage Accuracy: 0.05%
- Low Operating Current: 10μA
- Low Drift: 10ppm/°C Max
- Less Than 1Ω Dynamic Impedance
- Both Commercial and Industrial Temperature Range Parts Are Available
- Available in 1.25V, 2.5V, 4.096V and 5V in SO-8 and TO-92 Packages
- 1.25V and 2.5V Available in MSOP Package
Typical Application
Description
The LT1634 is a micropower, precision, shunt voltage reference. The bandgap reference uses trimmed precision thin film resistors to achieve 0.05% initial voltage accuracy.Improved curvature correction technique guarantees10ppm/°C maximum temperature drift. Advances in design, processing and packaging techniques guarantee10µA operation and low temperature cycling hysteresis.The LT1634 does not require an output compensation capacitor, but is stable with capacitive loads. Low dynamic impedance makes the LT1634 reference easy to use from unregulated supplies.
The LT1634 reference can be used as a high performance upgrade to the LM185/LM385, LT1004 and LT1034 where lower power and guaranteed temperature drift is required.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
SO-8,MS-8,TO-92
Order Info
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- 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 | Pins | Temp | Price (1-99) | Price (1k)* | RoHS Data |
|---|---|---|---|---|---|---|
| LT1634ACS8-1.25 | SO | 8 | C | $5.10 | $4.50 | View |
| LT1634ACS8-1.25#PBF | SO | 8 | C | $5.10 | $4.50 | View |
| LT1634ACS8-1.25#TR | SO | 8 | C | $4.56 | View | |
| LT1634ACS8-1.25#TRPBF | SO | 8 | C | $4.56 | View | |
| LT1634ACS8-2.5 | SO | 8 | C | $5.10 | $4.50 | View |
| LT1634ACS8-2.5#PBF | SO | 8 | C | $5.10 | $4.50 | View |
| LT1634ACS8-2.5#TR | SO | 8 | C | $4.56 | View | |
| LT1634ACS8-2.5#TRPBF | SO | 8 | C | $4.56 | View | |
| LT1634ACS8-4.096 | SO | 8 | C | $5.10 | $4.50 | View |
| LT1634ACS8-4.096#PBF | SO | 8 | C | $5.10 | $4.50 | View |
| LT1634ACS8-4.096#TR | SO | 8 | C | $4.56 | View | |
| LT1634ACS8-4.096#TRPBF | SO | 8 | C | $4.56 | View | |
| LT1634ACS8-5 | SO | 8 | C | $5.10 | $4.50 | View |
| LT1634ACS8-5#PBF | SO | 8 | C | $5.10 | $4.50 | View |
| LT1634ACS8-5#TR | SO | 8 | C | $4.56 | View | |
| LT1634ACS8-5#TRPBF | SO | 8 | C | $4.56 | View | |
| LT1634AIS8-1.25 | SO | 8 | I | $5.70 | $4.95 | View |
| LT1634AIS8-1.25#PBF | SO | 8 | I | $5.70 | $4.95 | View |
| LT1634AIS8-1.25#TR | SO | 8 | I | $5.01 | View | |
| LT1634AIS8-1.25#TRPBF | SO | 8 | I | $5.01 | View | |
| LT1634AIS8-2.5 | SO | 8 | I | $5.70 | $4.95 | View |
| LT1634AIS8-2.5#PBF | SO | 8 | I | $5.70 | $4.95 | View |
| LT1634AIS8-2.5#TR | SO | 8 | I | $5.01 | View | |
| LT1634AIS8-2.5#TRPBF | SO | 8 | I | $5.01 | View | |
| LT1634AIS8-4.096 | SO | 8 | I | $5.70 | $4.95 | View |
| LT1634AIS8-4.096#PBF | SO | 8 | I | $5.70 | $4.95 | View |
| LT1634AIS8-4.096#TR | SO | 8 | I | $5.01 | View | |
| LT1634AIS8-4.096#TRPBF | SO | 8 | I | $5.01 | View | |
| LT1634AIS8-5 | SO | 8 | I | $5.70 | $4.95 | View |
| LT1634AIS8-5#PBF | SO | 8 | I | $5.70 | $4.95 | View |
| LT1634AIS8-5#TR | SO | 8 | I | $5.01 | View | |
| LT1634AIS8-5#TRPBF | SO | 8 | I | $5.01 | View | |
| LT1634BCMS8-1.25 | MSOP | 8 | C | $2.95 | $2.60 | View |
| LT1634BCMS8-1.25#PBF | SO | 8 | C | $2.95 | $2.60 | View |
| LT1634BCMS8-1.25#TR | MSOP | 8 | C | $2.66 | View | |
| LT1634BCMS8-1.25#TRPBF | MSOP | 8 | C | $2.66 | View | |
| LT1634BCMS8-2.5 | MSOP | 8 | C | $2.95 | $2.60 | View |
| LT1634BCMS8-2.5#PBF | MSOP | 8 | C | $2.95 | $2.60 | View |
| LT1634BCMS8-2.5#TR | MSOP | 8 | C | $2.66 | View | |
| LT1634BCMS8-2.5#TRPBF | MSOP | 8 | C | $2.66 | View | |
| LT1634BCS8-1.25 | SO | 8 | C | $2.75 | $2.35 | View |
| LT1634BCS8-1.25#PBF | SO | 8 | C | $2.75 | $2.35 | View |
| LT1634BCS8-1.25#TR | SO | 8 | C | $2.41 | View | |
| LT1634BCS8-1.25#TRPBF | SO | 8 | C | $2.41 | View | |
| LT1634BCS8-2.5 | SO | 8 | C | $2.75 | $2.35 | View |
| LT1634BCS8-2.5#PBF | SO | 8 | C | $2.75 | $2.35 | View |
| LT1634BCS8-2.5#TR | SO | 8 | C | $2.41 | View | |
| LT1634BCS8-2.5#TRPBF | SO | 8 | C | $2.41 | View | |
| LT1634BCS8-4.096 | SO | 8 | C | $2.75 | $2.35 | View |
| LT1634BCS8-4.096#PBF | SO | 8 | C | $2.75 | $2.35 | View |
| LT1634BCS8-4.096#TR | SO | 8 | C | $2.41 | View | |
| LT1634BCS8-4.096#TRPBF | SO | 8 | C | $2.41 | View | |
| LT1634BCS8-5 | SO | 8 | C | $2.75 | $2.35 | View |
| LT1634BCS8-5#PBF | SO | 8 | C | $2.75 | $2.35 | View |
| LT1634BCS8-5#TR | SO | 8 | C | $2.41 | View | |
| LT1634BCS8-5#TRPBF | SO | 8 | C | $2.41 | View | |
| LT1634BIS8-1.25 | SO | 8 | I | $3.35 | $2.85 | View |
| LT1634BIS8-1.25#PBF | SO | 8 | I | $3.35 | $2.85 | View |
| LT1634BIS8-1.25#TR | SO | 8 | I | $2.91 | View | |
| LT1634BIS8-1.25#TRPBF | SO | 8 | I | $2.91 | View | |
| LT1634BIS8-2.5 | SO | 8 | I | $3.35 | $2.85 | View |
| LT1634BIS8-2.5#PBF | SO | 8 | I | $3.35 | $2.85 | View |
| LT1634BIS8-2.5#TR | SO | 8 | I | $2.91 | View | |
| LT1634BIS8-2.5#TRPBF | SO | 8 | I | $2.91 | View | |
| LT1634BIS8-4.096 | SO | 8 | I | $3.35 | $2.85 | View |
| LT1634BIS8-4.096#PBF | SO | 8 | I | $3.35 | $2.85 | View |
| LT1634BIS8-4.096#TR | SO | 8 | I | $2.91 | View | |
| LT1634BIS8-4.096#TRPBF | SO | 8 | I | $2.91 | View | |
| LT1634BIS8-5 | SO | 8 | I | $3.35 | $2.85 | View |
| LT1634BIS8-5#PBF | SO | 8 | I | $3.35 | $2.85 | View |
| LT1634BIS8-5#TR | SO | 8 | I | $2.91 | View | |
| LT1634BIS8-5#TRPBF | SO | 8 | I | $2.91 | View | |
| LT1634CCZ-1.25 | TO-92 | 3 | C | $2.50 | $2.10 | View |
| LT1634CCZ-1.25#PBF | TO-92 | 3 | C | $2.50 | $2.10 | View |
| LT1634CCZ-1.25#TR | TO-92 | 3 | C | $2.16 | View | |
| LT1634CCZ-1.25#TRPBF | TO-92 | 3 | C | $2.16 | View | |
| LT1634CCZ-2.5 | TO-92 | 3 | C | $2.50 | $2.10 | View |
| LT1634CCZ-2.5#PBF | TO-92 | 3 | C | $2.50 | $2.10 | View |
| LT1634CCZ-2.5#TR | TO-92 | 3 | C | $2.16 | View | |
| LT1634CCZ-2.5#TRPBF | TO-92 | 3 | C | $2.16 | View | |
| LT1634CCZ-4.096 | TO-92 | 3 | C | $2.50 | $2.10 | View |
| LT1634CCZ-4.096#PBF | TO-92 | 3 | C | $2.50 | $2.10 | View |
| LT1634CCZ-4.096#TR | TO-92 | 3 | C | $2.16 | View | |
| LT1634CCZ-4.096#TRPBF | TO-92 | 3 | C | $2.16 | View | |
| LT1634CCZ-5 | TO-92 | 3 | C | $2.50 | $2.10 | View |
| LT1634CCZ-5#PBF | TO-92 | 3 | C | $2.50 | $2.10 | View |
| LT1634CCZ-5#TR | TO-92 | 3 | C | $2.16 | View | |
| LT1634CCZ-5#TRPBF | TO-92 | 3 | C | $2.16 | View | |
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Demo Boards
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Applications
- Portable Meters
- Precision Regulators
- A/D and D/A Converters
- Calibrators
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Simulate
LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.
Related models available in LTspice IV
LT1634-1.25
LT1634-2.5
LT1634-4.096
LT1634-5
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.