Datasheet LT1236 (Analog Devices)

制造商Analog Devices
描述Precision Reference
页数 / 页12 / 1 — FEATU. DESCRIPTIO. Ultra-Low Drift: 5ppm/. C Max. Trimmed to High …
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FEATU. DESCRIPTIO. Ultra-Low Drift: 5ppm/. C Max. Trimmed to High Accuracy: 0.05% Max. Industrial Temperature Range SO Package

Datasheet LT1236 Analog Devices

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LT1236 Precision Reference
U FEATU S RE DESCRIPTIO

Ultra-Low Drift: 5ppm/
°
C Max
The LT®1236 is a precision reference that combines ultra- ■
Trimmed to High Accuracy: 0.05% Max
low drift and noise with excellent long-term stability and ■
Industrial Temperature Range SO Package
high output accuracy. The reference output will both ■ Operates in Series or Shunt Mode source and sink up to 10mA and is almost totally immune ■ Pin Compatible with AD586, AD587 to input voltage variations. Two voltages are available: 5V ■ Output Sinks and Sources in Series Mode and 10V. The 10V version can be used as a shunt regulator ■ Very Low Noise < 1ppm (two-terminal zener) with the same precision characteris- P-P (0.1Hz to 10Hz) ■ 100% Noise Tested tics as the three-terminal connection. Special care has ■ > 100dB Ripple Rejection been taken to minimize thermal regulation effects and ■ Minimum Input/Output Differential of 1V temperature induced hysteresis. The LT1236 combines both superior accuracy and tem-
O U
perature coefficient specifications without the use of high
APPLICATI S
power, on-chip heaters. The LT1236 references are based ■ A/D and D/A Converters on a buried zener diode structure which eliminates noise ■ Precision Regulators and stability problems with surface breakdown devices. ■ Precision Scales Further, a subsurface zener exhibits better temperature ■ Inertial Navigation Systems drift and time stability than even the best band-gap ■ Digital Voltmeters references. , LTC and LT are registered trademarks of Linear Technology Corporation.
O U TYPICAL APPLICATI Basic Positive and Negative Connections Typical Distribution of Temperature Drift
24 DISTRIBUTION 22 OF THREE RUNS LT1236 LT1236-10 20 V IN IN OUT V NC IN OUT OUT 18 GND GND 16 14 –VOUT 12 V R1 = OUT – (V – ) UNITS (%) 10 I R1 LOAD + 1.5mA 8 –15V 6 (V –) 4 LT1236 TA01 2 0 –3 –2 –1 0 1 2 3 OUTPUT DRIFT (ppm/°C) LT1236 TA02 1