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LM199

  

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National-Semiconductor
National ->Texas Instruments
LM199 Precision Reference
other parts : LM199AH  LM199AH-20  LM199AH-20/883  LM199AH/883  LM199AH/Q  LM299H  LM399AH  LM399H  LM299  LM399  
LM199 PDF
TI
Texas Instruments
LM199 Low-Power Low-Offset Voltage Quad Comparators

DESCRIPTION
The LM199 series are precision, temperature-stabilized monolithic zeners offering temperature coefficients a factor of ten better than high quality reference zeners. Constructed on a single monolithic chip is a temperature stabilizer circuit and an active reference zener. The active circuitry reduces the dynamic impedance of the zener to about 0.5Ω and allows the zener to operate over 0.5 mA to 10 mA current range with essentially no change in voltage or temperature coefficient. Further, a new subsurface zener structure gives low noise and excellent long term stability compared to ordinary monolithic zeners. The package is supplied with a thermal shield to minimize heater power and improve temperature regulation.

FEATURES
• 0.0001%/°C Temperature Coefficient
• Low Dynamic Impedance — 0.5Ω
• Initial Tolerance on Breakdown Voltage — 2%
• Sharp Breakdown at 400 μA
• Wide Operating Current — 500 μA to 10 mA
• Wide Supply Range for Temperature Stabilizer
• Low Noise
• Low Power for Stabilization — 300 mW at 25°C
• Proven Reliability, Low-Stress Packaging in TO-46 Integrated-Circuit Hermetic Package, for Low Hysteresis after Thermal Cycling. 33 Million Hours MTBF at TA = +25°C (TJ = +86°C)


other parts : LM299  LM399  LM3999  
LM199 PDF
Linear
Linear Technology
LM199 Precision Reference

DESCRIPTION
The LM199/LM399 precision shunt reference features excellent temperature stability over a wide range of voltage, temperature and operating current conditions. A stabilizing heater is incorporated with the active Zener on a monolithic substrate which nearly eliminates changes in
voltage with temperature. The subsurface Zener operates over a current range of 0.5mA to 10mA, and offers minimal noise and excellent long-term stability. Ideal applications for the LM199/LM399 include digital voltmeters, precision calibration equipment, current sources and a variety of other precision low cost references. A 10V buffered reference application is shown below.

FEATURES
■ 6.95V Shunt Reference
■ Guaranteed 0.5ppm/°C Temperature Coeffi cient
■ Guaranteed 1Ω Maximum Dynamic Impedance
■ Guaranteed 20μVRMS Maximum Noise
■ Guaranteed Initial Tolerance of 2%
■ Wide Operating Current Range
■ Available in 4-Lead TO-46 Metal Can

APPLICATIONS
■ Precision Voltage Reference for Multimeters
■ Calibration Equipment Voltage Standards
■ Laboratory Measurement Equipment
■ Industrial Monitor/Control Instruments
■ High Accuracy Data Converters


other parts : LM199A  LM199AH  LM199AH-20  LM199H  LM399  LM399A  LM399AH  LM399AH-20  LM399AH-50  LM399H  
LM199 PDF
Linear
Linear Technology
LM199H Precision Reference

DESCRIPTION
The LM199/LM399 precision shunt reference features excellent temperature stability over a wide range of voltage, temperature and operating current conditions. A stabilizing heater is incorporated with the active Zener on a monolithic substrate which nearly eliminates changes in
voltage with temperature. The subsurface Zener operates over a current range of 0.5mA to 10mA, and offers minimal noise and excellent long-term stability. Ideal applications for the LM199/LM399 include digital voltmeters, precision calibration equipment, current sources and a variety of other precision low cost references. A 10V buffered reference application is shown below.

FEATURES
■ 6.95V Shunt Reference
■ Guaranteed 0.5ppm/°C Temperature Coeffi cient
■ Guaranteed 1Ω Maximum Dynamic Impedance
■ Guaranteed 20μVRMS Maximum Noise
■ Guaranteed Initial Tolerance of 2%
■ Wide Operating Current Range
■ Available in 4-Lead TO-46 Metal Can

APPLICATIONS
■ Precision Voltage Reference for Multimeters
■ Calibration Equipment Voltage Standards
■ Laboratory Measurement Equipment
■ Industrial Monitor/Control Instruments
■ High Accuracy Data Converters


other parts : LM199  LM199A  LM199AH  LM199AH-20  LM399  LM399A  LM399AH  LM399AH-20  LM399AH-50  LM399H  
LM199H PDF
Linear
Linear Technology
LM199A Precision Reference

DESCRIPTION
The LM199/LM399 precision shunt reference features excellent temperature stability over a wide range of voltage, temperature and operating current conditions. A stabilizing heater is incorporated with the active Zener on a monolithic substrate which nearly eliminates changes in
voltage with temperature. The subsurface Zener operates over a current range of 0.5mA to 10mA, and offers minimal noise and excellent long-term stability. Ideal applications for the LM199/LM399 include digital voltmeters, precision calibration equipment, current sources and a variety of other precision low cost references. A 10V buffered reference application is shown below.

FEATURES
■ 6.95V Shunt Reference
■ Guaranteed 0.5ppm/°C Temperature Coeffi cient
■ Guaranteed 1Ω Maximum Dynamic Impedance
■ Guaranteed 20μVRMS Maximum Noise
■ Guaranteed Initial Tolerance of 2%
■ Wide Operating Current Range
■ Available in 4-Lead TO-46 Metal Can

APPLICATIONS
■ Precision Voltage Reference for Multimeters
■ Calibration Equipment Voltage Standards
■ Laboratory Measurement Equipment
■ Industrial Monitor/Control Instruments
■ High Accuracy Data Converters


other parts : LM199  LM199AH  LM199AH-20  LM199H  LM399  LM399A  LM399AH  LM399AH-20  LM399AH-50  LM399H  
LM199A PDF
National-Semiconductor
National ->Texas Instruments
LM199AH Precision Reference
other parts : LM199AH-20  LM199AH-20/883  LM199AH/883  LM199AH/Q  LM299H  LM399AH  LM399H  LM199  LM299  LM399  
LM199AH PDF
Linear
Linear Technology
LM199AH Precision Reference

DESCRIPTION
The LM199/LM399 precision shunt reference features excellent temperature stability over a wide range of voltage, temperature and operating current conditions. A stabilizing heater is incorporated with the active Zener on a monolithic substrate which nearly eliminates changes in
voltage with temperature. The subsurface Zener operates over a current range of 0.5mA to 10mA, and offers minimal noise and excellent long-term stability. Ideal applications for the LM199/LM399 include digital voltmeters, precision calibration equipment, current sources and a variety of other precision low cost references. A 10V buffered reference application is shown below.

FEATURES
■ 6.95V Shunt Reference
■ Guaranteed 0.5ppm/°C Temperature Coeffi cient
■ Guaranteed 1Ω Maximum Dynamic Impedance
■ Guaranteed 20μVRMS Maximum Noise
■ Guaranteed Initial Tolerance of 2%
■ Wide Operating Current Range
■ Available in 4-Lead TO-46 Metal Can

APPLICATIONS
■ Precision Voltage Reference for Multimeters
■ Calibration Equipment Voltage Standards
■ Laboratory Measurement Equipment
■ Industrial Monitor/Control Instruments
■ High Accuracy Data Converters


other parts : LM199  LM199A  LM199AH-20  LM199H  LM399  LM399A  LM399AH  LM399AH-20  LM399AH-50  LM399H  
LM199AH PDF
National-Semiconductor
National ->Texas Instruments
LM199AH/Q Precision Reference
other parts : LM199AH  LM199AH-20  LM199AH-20/883  LM199AH/883  LM299H  LM399AH  LM399H  LM199  LM299  LM399  
LM199AH/Q PDF
National-Semiconductor
National ->Texas Instruments
LM199AH-20 Precision Reference
other parts : LM199AH  LM199AH-20/883  LM199AH/883  LM199AH/Q  LM299H  LM399AH  LM399H  LM199  LM299  LM399  
LM199AH-20 PDF
Linear
Linear Technology
LM199AH-20 Precision Reference

DESCRIPTION
The LM199/LM399 precision shunt reference features excellent temperature stability over a wide range of voltage, temperature and operating current conditions. A stabilizing heater is incorporated with the active Zener on a monolithic substrate which nearly eliminates changes in
voltage with temperature. The subsurface Zener operates over a current range of 0.5mA to 10mA, and offers minimal noise and excellent long-term stability. Ideal applications for the LM199/LM399 include digital voltmeters, precision calibration equipment, current sources and a variety of other precision low cost references. A 10V buffered reference application is shown below.

FEATURES
■ 6.95V Shunt Reference
■ Guaranteed 0.5ppm/°C Temperature Coeffi cient
■ Guaranteed 1Ω Maximum Dynamic Impedance
■ Guaranteed 20μVRMS Maximum Noise
■ Guaranteed Initial Tolerance of 2%
■ Wide Operating Current Range
■ Available in 4-Lead TO-46 Metal Can

APPLICATIONS
■ Precision Voltage Reference for Multimeters
■ Calibration Equipment Voltage Standards
■ Laboratory Measurement Equipment
■ Industrial Monitor/Control Instruments
■ High Accuracy Data Converters


other parts : LM199  LM199A  LM199AH  LM199H  LM399  LM399A  LM399AH  LM399AH-20  LM399AH-50  LM399H  
LM199AH-20 PDF
National-Semiconductor
National ->Texas Instruments
LM199AH/883 Precision Reference
other parts : LM199AH  LM199AH-20  LM199AH-20/883  LM199AH/Q  LM299H  LM399AH  LM399H  LM199  LM299  LM399  
LM199AH/883 PDF
National-Semiconductor
National ->Texas Instruments
LM199AH-20/883 Precision Reference
other parts : LM199AH  LM199AH-20  LM199AH/883  LM199AH/Q  LM299H  LM399AH  LM399H  LM199  LM299  LM399  
LM199AH-20/883 PDF

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