Datasheet LM199, LM399, LM199A, LM399A (Analog Devices) - 3

HerstellerAnalog Devices
BeschreibungPrecision Reference
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DokumentenspracheEnglisch

elec. Trical characTerisTics The. denotes the specifications which apply over the full operating

elec Trical characTerisTics The denotes the specifications which apply over the full operating

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LM199/LM399 LM199A/LM399A
elec Trical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) LM199/LM199A LM399/LM399A SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
ΔVZ Long-Term Stability Stabilized, 22°C ≤ TA ≤ 28°C, 8 (Note 4) 8 (Note 4) ppm/√kH ΔTime 1000 Hours, IR = 1mA ±0.1% IH Temperature Stabilizer Supply TA = 25°C, Still Air, VH = 30V 8.5 14 8.5 15 mA Current TA = –55°C (Note 5) 22 28 VH Temperature Stabilizer Supply l 9 40 9 40 V Voltage Warm-Up Time to ±0.05% VZ VH = 30V 3 3 Seconds Initial Turn-On Current 9V ≤ VH ≤ 40V (Note 5) 140 200 140 200 mA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
These specifications apply for 30V applied to the temperature may cause permanent damage to the device. Exposure to any Absolute stabilizer and –55°C ≤ TA ≤ 125°C for the LM199; and 0°C ≤ TA ≤ 70°C for Maximum Rating condition for extended periods may affect device the LM399. reliability and lifetime.
Note 4:
Devices with maximum guaranteed long-term stability of
Note 2:
The substrate is electrically connected to the negative terminal 20ppm/√kH are available. Drift decreases with time. of the temperature stabilizer. The voltage that can be applied to either
Note 5:
This initial current can be reduced by adding an appropriate terminal of the reference is 40V more positive or 0.1V more negative than resistor and capacitor to the heater circuit. See the Typical Performance the substrate. Characteristics graphs to determine values.
Note 6:
Guaranteed by “Reverse Breakdown Change with Current.”
Typical perForMance characTerisTics Reverse Characteristics Dynamic Impedance Stabilization Time
100 100 1 VH = 15V TA = 25°C 0 10 10 TA = –55°C –1 1 STABILIZED (TJ ≈ 90°C) –2 TJ = 25°C OUTPUT (mV) 1 TJ = 25°C REVERSE CURRENT (mA) 0.1 DYNAMIC IMPEDANCE (Ω) STABILIZED –3 (TJ ≈ 90°C) 0.01 0.1 –4 6.25 6.45 6.65 6.85 7.05 10 100 1k 10k 100k 0 4 8 12 16 20 REVERSE VOLTAGE (V) FREQUENCY (Hz) HEATER ON TIME (SECONDS) LM199 G01 LM199 G02 LM199 G03 199399fc For more information www.linear.com/LM399 3 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Functional Block Diagram Typical Applications Schematic Diagrams Package Description Revision History Related Parts