LINER LM129AH

LM129/LM329
6.9V Precision
Voltage Reference
U
FEATURES
■
■
■
■
DESCRIPTIO
Guaranteed 10ppm/°C Temperature Coefficient
Guaranteed 1Ω Maximum Dynamic Impedance
Guaranteed 20µV Maximum Wideband Noise
Wide Operating Current Range 0.6mA to 15mA
U
APPLICATIO S
■
■
■
■
Transducers
A/D and D/A Converters
Calibration Standards
Instrumentation Reference
The LM129 temperature compensated 6.9V zener references provide excellent stability over time and temperature, very low dynamic impedance and a wide 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 device is
achieved by using a “buried zener” design which eliminates surface noise phenomenon associated with ordinary zeners. To serve a wide variety of applications, the
LM129 is available in several temperature coefficient
grades and two package styles. A 20mA positive current
source application is shown below.
, LTC and LT are registered trademarks of Linear Technology Corporation.
U
TYPICAL APPLICATIO
20mA Positive Current Source
Reverse Voltage Change
20V
8
–
7
LT1001
3
20k
0.1%
4.3k
+
REVERSE VOLTAGE CHANGE (mV)
2
LM329
6.95V
TA = 25°C
174Ω
0.1%
20k
0.1%
6
4
10k
OUT
20mA
129/329 TA01
7
6
5
4
3
2
1
0
0
2
4
8
6
REVERSE CURRENT (mA)
10
129/329 TA01b
1
LM129/LM329
W W
U
W
ABSOLUTE
AXI U RATI GS
(Note 1)
Operating Temperature Range
LM129 (OBSOLETE) ................... –55°C to 125°C
LM329 ..................................................... 0°C to 70°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
Reverse Breakdown Current ................................. 30mA
Forward Current ..................................................... 2mA
U
W
U
PACKAGE/ORDER I FOR ATIO
BOTTOM VIEW
H PACKAGE
2-LEAD TO-46 METAL CAN
BOTTOM VIEW
ORDER PART
NUMBER
Z PACKAGE
3-LEAD PLASTIC TO-92
LM329AZ
LM329BZ
LM329CZ
LM329DZ
ORDER PART
NUMBER
LM129AH LM329AH
LM129BH LM329BH
LM129CH LM329CH
LM329DH
TJMAX = 150°C,
θJA = 440°C/W, θJC = 80°C/W
TJMAX = 150°C, θJA = 160°C/W
OBSOLETE PACKAGE
Consider the Z Package for Alternate Source
Consult LTC Marketing for availability of LM329AZ,LM329CZ and LM329DZ
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2)
PARAMETER
CONDITIONS
LM129A/
LM129B/LM129C
MIN
TYP
MAX
VZ
Reverse Breakdown Voltage
TA = 25°C, 0.6mA ≤ IR ≤ 15mA
6.7
∆VZ
∆IR
Reverse Breakdown Voltage
Change with Current
TA = 25°C, 0.6mA ≤ IR ≤ 15mA
1mA ≤ IR ≤ 15mA
●
Temperature Coefficient
IR = 1mA,
LM129A/LM329A
LM129A/LM329B
LM129A/LM329C
LM329D
SYMBOL
∆VZ
∆Temp
Change in Temperature
Coefficient
rZ
en
∆VZ
∆Time
Dynamic Impedance
6.6
UNITS
6.9
7.2
9
12
●
●
●
●
6
15
30
1mA ≤ IR ≤ 15mA
●
1
TA =25°C, IR = 1mA
1mA ≤ IR ≤ 15mA
0.6
0.8
1
0.8
1
2
●
Ω
Ω
20
7
100
µV
RMS Noise
TA =25°C, 10Hz ≤ f ≤ 10kHz
7
Long Term Stability
TA = 45°C ±0.1°C, IR = 1mA ±0.3%
20
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
2
LM329A/LM329B/
LM329C/LM329D
MIN
TYP
MAX
6.9
7.25
V
14
9
12
20
mV
mV
10
20
50
6
15
30
50
10
20
50
100
ppm/°C
ppm/°C
ppm/°C
ppm/°C
1
20
ppm/°C
ppm/kHr
Note 2: To determine the junction temperature as a function of the
ambient temperature, see θJA for each package.
LM129/LM329
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Reverse Characteristics
Response Time
Dynamic Impedance
8
100
100
TA = 25°C
OUTPUT
10
1.0
Tj = 25°C
Tj = 55°C
0.1
10
6.65 6.75 6.85 6.95
REVERSE VOLTAGE (V)
0.1
7.05
10
100
1k
10k
FREQUENCY (Hz)
129/329 G01
VOUT
INPUT
0
100k
0
100
200
300
TIME (µs)
400
129/329 G03
129/329 G02
Forward Characteristics
1.2
6.8k
0
14
.
6.55
VIN
2
1.0
Tj = 125°C
0.01
6.45
4
VOLTAGE (V)
DYNAMIC IMPEDANCE (Ω)
REVERSE CURRENT (mA)
6
Low Frequency Noise Voltage
Noise Voltage
150
TA = 25°C
0.01Hz TO 1Hz
0.6
0.4
NOISE (10µV/DIV)
0.8
NOISE (nV/√Hz)
FORWARD VOLTAGE (V)
1.0
100
0.2
0
0.001
50
0.01
0.1
1.0
FORWARD CURRENT (mA)
10
10
100
1k
10k
100k
0
FREQUENCY (Hz)
129/329 G04
129/329 G05
50
150
100
TIME (µs)
200
250
129/329 G06
W
W
SCHE ATIC DIAGRA
1
50Ω
Q2
D1
6.2V
1k
+
Q6
Q5
15pF
Q3
2k
30pF
Q4
Q7
10k
Q1
30k
2k
2.6k
2
129/329 SD
–
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
3
LM129/LM329
U
TYPICAL APPLICATIO S
Buffered Reference
Using a Single Supply
Common Reference
15V
9V TO 40V
9k
IMIN ≥ 0.6mA
RS
7.5k
2
–
7
LT1001
3
LM329
6.9V
LM329
6.9V
+
6
10V
4
20k
1%
129/329 TA02
129/329 TA03
U
PACKAGE DESCRIPTIO
H Package
2-Lead and 3-Lead TO-46 Metal Can
Z Package
3-Lead Plastic TO-92 (Similar to TO-226)
(Reference LTC DWG # 05-08-1340)
(Reference LTC DWG # 05-08-1410)
0.209 – 0.219
(5.309 – 5.537)
0.178 – 0.195
(4.521 – 4.953)
0.085 – 0.105
(2.159 – 2.667)
0.500
(12.700)
MIN
REFERENCE
PLANE
*
0.180 ± 0.005
(4.572 ± 0.127)
0.060 ± 0.005
(1.524± 0.127)
DIA
0.90
(2.286)
NOM
0.180 ± 0.005
(4.572 ± 0.127)
0.025
(0.635)
MAX
0.016 – 0.021**
(0.406 – 0.533)
DIA
0.050
(1.270)
TYP
0.100
(2.540)
TYP
0.500
(12.70)
MIN
0.050
(1.270)
TYP
0.050 UNCONTROLLED
(1.270) LEAD DIMENSION
MAX
PIN 1
FOR 3-LEAD PACKAGE ONLY
45°
0.028 – 0.048
(0.711 – 1.219)
0.036 – 0.046
(0.914 – 1.168)
0.016 ± 0.003
(0.406 ± 0.076)
0.050
(1.27)
BSC
0.060 ± 0.010
(1.524 ± 0.254)
H02/03(TO-46) 1098
*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND 0.045" BELOW THE REFERENCE PLANE
0.016 – 0.024
**FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS
(0.406 – 0.610)
OBSOLETE PACKAGE
0.140 ± 0.010
(3.556 ± 0.127)
5°
NOM
0.015 ± 0.002
(0.381 ± 0.051)
0.098 +016/–0.04
(2.5 +0.4/–0.1)
2 PLCS
Z3 (TO-92) 0401
TO-92 TAPE AND REEL
REFER TO TAPE AND REEL SECTION OF
LTC DATA BOOK FOR ADDITIONAL INFORMATION
10° NOM
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LT1460
Micropower, Precise Series Reference
10ppm/°C, Output Voltages: 2.5V, 3V, 3.3V, 5V, 10V
LT1634
0.05% Accurate, 10ppm/°C, Shunt Reference
Output Voltages: 1.25V, 2.5V, 4.096V, 5V
4
Linear Technology Corporation
129329fa LT/CP 0901 1.5K REV A • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507
●
www.linear.com
 LINEAR TECHNOLOGY CORPORATION 1985