LT1634 - Micropower Precision Shunt Voltage Reference

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 guarantee10?A 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.

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
LT1634 Typical Application
LT1634 Typical Application
Applications
  • Portable Meters
  • Precision Regulators
  • A/D and D/A Converters
  • Calibrators
Packaging
LT1634 Package Drawing
LT1634 Package Drawing
LT1634 Package Drawing
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT1634ACS8-1.25#PBFSO-8C$5.10$4.50
LT1634ACS8-1.25#TRPBFSO-8C$4.56
LT1634ACS8-2.5#PBFSO-8C$5.10$4.50
LT1634ACS8-2.5#TRPBFSO-8C$4.56
LT1634ACS8-4.096#PBFSO-8C$5.10$4.50
LT1634ACS8-4.096#TRPBFSO-8C$4.56
LT1634ACS8-5#PBFSO-8C$5.10$4.50
LT1634ACS8-5#TRPBFSO-8C$4.56
LT1634AIS8-1.25#PBFSO-8I$5.70$4.95
LT1634AIS8-1.25#TRPBFSO-8I$5.01
LT1634AIS8-2.5#PBFSO-8I$5.70$4.95
LT1634AIS8-2.5#TRPBFSO-8I$5.01
LT1634AIS8-4.096#PBFSO-8I$5.70$4.95
LT1634AIS8-4.096#TRPBFSO-8I$5.01
LT1634AIS8-5#PBFSO-8I$5.70$4.95
LT1634AIS8-5#TRPBFSO-8I$5.01
LT1634BCMS8-1.25#PBFMS-8C$2.95$2.60
LT1634BCMS8-1.25#TRPBFMS-8C$2.66
LT1634BCMS8-2.5#PBFMS-8C$2.95$2.60
LT1634BCMS8-2.5#TRPBFMS-8C$2.66
LT1634BCS8-1.25#PBFSO-8C$2.75$2.35
LT1634BCS8-1.25#TRPBFSO-8C$2.41
LT1634BCS8-2.5#PBFSO-8C$2.75$2.35
LT1634BCS8-2.5#TRPBFSO-8C$2.41
LT1634BCS8-4.096#PBFSO-8C$2.75$2.35
LT1634BCS8-4.096#TRPBFSO-8C$2.41
LT1634BCS8-5#PBFSO-8C$2.75$2.35
LT1634BCS8-5#TRPBFSO-8C$2.41
LT1634BIS8-1.25#PBFSO-8I$3.35$2.85
LT1634BIS8-1.25#TRPBFSO-8I$2.91
LT1634BIS8-2.5#PBFSO-8I$3.35$2.85
LT1634BIS8-2.5#TRPBFSO-8I$2.91
LT1634BIS8-4.096#PBFSO-8I$3.35$2.85
LT1634BIS8-4.096#TRPBFSO-8I$2.91
LT1634BIS8-5#PBFSO-8I$3.35$2.85
LT1634BIS8-5#TRPBFSO-8I$2.91
LT1634CCZ-1.25#PBFTO-92C$2.50$2.10
LT1634CCZ-1.25#TRPBFTO-92C$2.16
LT1634CCZ-2.5#PBFTO-92C$2.50$2.10
LT1634CCZ-2.5#TRPBFTO-92C$2.16
LT1634CCZ-4.096#PBFTO-92C$2.50$2.10
LT1634CCZ-4.096#TRPBFTO-92C$2.16
LT1634CCZ-5#PBFTO-92C$2.50$2.10
LT1634CCZ-5#TRPBFTO-92C$2.16
Datasheet
Design Note
Reliability Data
LT Journal
CAD Symbol
LTspice
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