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LH0070-0H 产品手册 - National Semiconductor（美国国家半导体）
制造商:
National Semiconductor（美国国家半导体）
分类:
主动器件
封装:
TO-5-3
描述:
LH0070系列精密BCD缓冲基准 LH0070 Series Precision BCD Buffered Reference
Pictures:
3D模型
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LH0070-0H数据手册
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TL/H/5550
LH0070 Series Precision BCD Buffered Reference
LH0071 Series Precision Binary Buffered Reference
July 1987
LH0070 Series Precision BCD Buffered Reference
LH0071 Series Precision Binary Buffered Reference
General Description
The LH0070 and LH0071 are precision, three terminal, volt-
age references consisting of a temperature compensated
zener diode driven by a current regulator and a buffer ampli-
fier. The devices provide an accurate reference that is virtu-
ally independent of input voltage, load current, temperature
and time. The LH0070 has a 10.000V nominal output to
provide equal step sizes in BCD applications. The LH0071
has a 10.240V nominal output to provide equal step sizes in
binary applications.
The output voltage is established by trimming ultra-stable,
low temperature drift, thin film resistors under actual operat-
ing circuit conditions. The devices are shortcircuit proof in
both the current sourcing and sinking directions.
The LH0070 and LH0071 series combine excellent long
term stability, ease of application, and low cost, making
them ideal choices as reference voltages in precision D to A
and A to D systems.
Features
Y
Accuracy output voltage
LH0070 10V
g
0.02%
LH0071 10.24V
g
0.02%
Y
Single supply operation 11.4V to 40V
Y
Low output impedance 0.2X
Y
Excellent line regulation 0.1 mV/V
Y
Low zener noise 20 mVp-p
Y
3-lead TO-5 (pin compatible with the LM109)
Y
Short circuit proof
Y
Low standby current 3 mA
Equivalent Schematic
TL/H/5550– 1
Connection Diagram
TO-5 Metal Can Package
TL/H/5550– 7
Order Number LH0070-0H, LH0071-0H, LH0070-1H,
LH0071-1H, LH0070-2H or LH0071-2H
See NS Package Number H03B
Typical Applications
Statistical Voltage Standard
TL/H/5550– 8
*Output Voltage Fine Adjustment
TL/H/5550– 9
*Note: The output of the LH0070 and LH0071 may be adjusted to a precise voltage by using the above circuit since the supply current of the devices is
relatively small and constant with temperature and input voltage. For the circuit shown, supply sensitivities are degraded slightly to 0.01%/V change in V
OUT
for changes in V
IN
and V
b
.
An additional temperature drift of 0.0001%/
§
C is added due to the variation of supply current with temperature of the LH0070 and LH0071. Sensitivity to the
value of R1, R2 and R3 is less than 0.001%/%.
C
1995 National Semiconductor Corporation RRD-B30M115/Printed in U. S. A.
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