LM134 Series
U
TYPICAL APPLICATIO S
In-Line Current Limiter
Generating Negative Output Impedance
R
SET
V
IN
R
–
+
V
V
+
–
V
IN
V
R1*
C1*
R
LM334
R
SET
V
LM334
OP AMP
–V
TA18
IN
TA17
*Z
≈ –16 • R1(R1/V MUST NOT EXCEED I ).
IN SET
OUT
*USE MINIMUM VALUE REQUIRED TO
ENSURE STABILITY OF PROTECTED
DEVICE. THIS MINIMIZES INRUSH
CURRENT TO A DIRECT SHORT.
Ground Referred Fahrenheit Thermometer
V
≥ 3V
IN
R4
56k
2N4250
C1
0.01
V
= 10mV/°F
OUT
10°F ≤ T ≤ 250°F
V
IN
R1
8.25k
1%
+
–
V
V
R5**
R
R3*
R2
100Ω
1%
LT1009
2.5V*
LM334
TA19
*SELECT R3 = V /583µA
REF
**SELECT FOR 1.2mA
134sc LT/CP 1001 1.5K REV C • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1991
12 LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
●
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
Linear [ Linear ]
