LM129/LM329
6.9V Precision
Voltage Reference
Fea T Descrip T
n
Guaranteed 10ppm/C Temperature Coefficient The LM 329 temperature compensated 6.9V Zener
n
Guaranteed 1 Maximum Dynamic Impedance references provide excellent stability over time and
n
Guaranteed 20V Maximum Wideband Noise temperature, very low dynamic impedance and a wide
n
Wide Operating Current Range: 0.6mA to 15mA operating current range. The device achieves low dynamic
impedance by incorporating a high gain shunt regulator
around the Zener. The excellent noise performance of the
a T
device is achieved by using a buried Zener design which
n eliminates surface noise phenomenon associated with
Transducers
n ordinary Zeners. To serve a wide variety of applications,
A/D and D/A Converters
n the LM129 is available in several temperature coefficient
Calibration Standards
n grades and two package styles. A 20mA positive current
Instrumentation Reference
source application is shown below.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Typical a T
20mA Positive Current Source Reverse Voltage Change
20V 8
T = 25C
A
174
20k
7
0.1%
0.1%
6
2 7 5
LM329
6.95V 6
4
LT1001
3
+
3
4
20k
2
0.1%
10k
1
OUT
20mA
4.3k
0
129329 TA01
0 2 4 6 8 10
REVERSE CURRENT (mA)
129329 TA01b
129329fd
1
For more information www.linear.com/LM329
REVERSE VOLTAGE CHANGE (mV)
ion pplica
ions pplica
ion uresLM129/LM329
a Te Maxi Mu M r a T (Note 1)
Operating Temperature Range Lead Temperature (Soldering, 10 sec) .................. 300C
LM129 (OBSOLETE) .......................... 55C to 125C Reverse-Breakdown Current ..................................30mA
LM329 ..................................................... 0C to 70C Forward Current .......................................................2mA
Storage Temperature Range ................... 65C to 150C
p in c F T
BOTTOM VIEW
BOTTOM VIEW
H PACKAGE
2-LEAD TO-46 METAL CAN
Z PACKAGE
T = 150C,
JMAX
3-LEAD PLASTIC TO-92
q = 440C/W, q = 80C/W
JA JC
T = 150C, q = 160C/W
JMAX JA
OBSOLETE PACKAGE
Consider the Z Package for Alternate Source
Der in F Ma T
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LM129AH#PBF LM129AH#TRPBF LM129AH 2-Lead Plastic TO-46 Metal Can 55C to 125C
LM129BH#PBF LM129BH#TRPBF LM129BH 2-Lead Plastic TO-46 Metal Can 55C to 125C
LM129CH#PBF LM129CH#TRPBF LM129CH 2-Lead Plastic TO-46 Metal Can 55C to 125C
LM329AH#PBF LM329AH#TRPBF LM329AH 2-Lead Plastic TO-46 Metal Can 0C to 70C
LM329BH#PBF LM329BH#TRPBF LM329BH 2-Lead Plastic TO-46 Metal Can 0C to 70C
LM329CH#PBF LM329CH#TRPBF LM329CH 2-Lead Plastic TO-46 Metal Can 0C to 70C
LM329DH#PBF LM329DH#TRPBF LM329DH 2-Lead Plastic TO-46 Metal Can 0C to 70C
LM329AZ#PBF LM329AZ#TRPBF LM329BZ 3-Lead Plastic TO-92 0C to 70C
LM329BZ#PBF LM329BZ#TRPBF LM329BZ 3-Lead Plastic TO-92 0C to 70C
LM329CZ#PBF LM329CZ#TRPBF LM329BZ 3-Lead Plastic TO-92 0C to 70C
LM329DZ#PBF LM329DZ#TRPBF LM329BZ 3-Lead Plastic TO-92 0C to 70C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: