LM385-1.2_15 Datasheet, PDF (1/8 Pages) Linear Technology – Micropower Voltage Reference

FEATURES
s _{10µA to 20mA Operating Range}
s _{Guaranteed 1% Initial Voltage Tolerance}
s _{Guaranteed 1Ω Dynamic Impedance}
s _{Very Low Power Consumption}
U
APPLICATIO S
s _{Portable Meter References}
s _{Portable Test Instruments}
s _{Battery Operated Systems}
s _{Current Loop Instrumentation}
TYPICAL APPLICATIO
LM185-1.2/
LM285-1.2/LM385-1.2
Micropower Voltage
Reference
DESCRIPTIO
The LM185-1.2 is a two terminal band gap reference diode
that has been designed for applications which require
precision performance with micropower operation. The
device provides guaranteed operating specifications at
currents as low as 10µA. The nominal voltage is 1.235V
with both 1% and 2% tolerances available. Some addi-
tional features are: maximum dynamic impedance of 1Ω,
low noise and excellent stability over time and tempera-
ture. Advanced design, processing and testing techniques
make Linear’s LM185-1.2 a superior choice over previous
designs. A micropower 5V reference application is shown
below. For guaranteed TC, micropower references, see the
LT1034 data sheet.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Micropower 5V Reference
V⁺
LM334
V^–
LM385-1.2
V_IN
7V TO 15V
R
5.6k
3₊ ⁷
6
LT1494
2_–
4
1M
1%
5V
150pF
3.01M
1%
185/285/385 TA01a
Reverse Voltage Change with Current
10
T_A = 25°C
8
6
4
2
0
–2
0.01
0.1
1
10
100
REVERSE CURRENT (mA)
185/285/385 TA01b
1