LT1034BCH-2.5 [Linear]
Micropower Dual Reference; 微功耗双参考
| 型号： | LT1034BCH-2.5 |
| 厂家： | 
Linear |
| 描述： | Micropower Dual Reference |
| 文件： | 总4页 (文件大小：187K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT1034-1.2/LT1034-2.5
Micropower Dual
Reference
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FEATURES
DESCRIPTION
The LT®1034 is a micropower, precision 1.2V/2.5 refer-
encecombinedwitha7Vauxiliaryreference.The1.2V/2.5V
reference is a trimmed, thin-film, band-gap, voltage refer-
ence with 1% initial tolerance and guaranteed 20ppm/°C
temperature drift. Operating on only 20µA, the LT1034
offers guaranteed drift, low temperature cycling hyster-
esis and good long-term stability. The low dynamic im-
pedance makes the LT1034 easy to use from unregulated
supplies. The7Vreferenceisasubsurfacezenerdevicefor
less demanding applications.
■
Guaranteed 20 ppm/
°
C Drift
(H Package and Z Package)
■
■
■
■
Guaranteed 40 ppm/
°C Drift (SO-8 Package)
20 A to 20mA Operation (1.2V)
µ
Dynamic Impedance: 1Ω
7V, 100µA Reference
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APPLICATIONS
■
■
■
Portable Meters
Precision Regulators
Calibrators
The LT1034 reference can be used as a high performance
upgrade of the LM385 or LT1004, where guaranteed
temperature drift is desired.
, LTC and LT are registered trademarks of Linear Technology Corporation.
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TYPICAL APPLICATION AND BLOCK DIAGRAM
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Temperature Drift LT1034CS8-1.2
15V
2.5
2.0
1.5
50k
500k
1.0
1.2V OR 2.5V
OUTPUT
0.5
7V OUTPUT
0
1.225V
–0.5
–1.0
–1.5
–2.0
–2.5
7V
OR 2.500V
LT1034 • TA01
–50
0
25
50
75 100 125
–25
TEMPERATURE (°C)
LT1034 • TPC02
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LT1004
Low Cost Precision Band-Gap
Micropower, SO-8, Industrial Temperature Options
Low Dropout, Multiple Output Options
LT1019
Precision Series or Shunt Band-Gap
Precision Series or Shunt Buried Zener
LT1236
Low Noise, Low Power, Multiple Output Options
1
LT1034-1.2/LT1034-2.5
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ABSOLUTE MAXIMUM RATINGS
Operating Temperature
Operating Current ................................................. 20mA
Forward Current (Note 1)...................................... 20mA
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
Commercial ............................................. 0° to 70°C
Industrial .......................................... –40°C to 85°C
Military ........................................... –55°C to 125°C
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PACKAGE/ORDER INFORMATION
BOTTOM VIEW
ORDER PART
NUMBER
ORDER PART NUMBER
1.2V
LT1034BCH-1.2
7V
LT1034CS8-1.2
LT1034BCH-2.5
TOP VIEW
LT1034CS8-2.5
LT1034BMH-1.2
NC
NC
1
2
3
4
8
7
6
5
2.5V
NC
LT1034IS8-1.2
LT1034IS8-2.5
LT1034BMH-2.5
H PACKAGE
3-LEAD TO-46 METAL CAN
LT1034CH-1.2
NC
2.5V
7V
TJMAX = 150°C, θJA = 440°C/ W,
LT1034CH-2.5
θJC = 80°C/ W
PART MARKING
GND
LT1034MH-1.2
LT1034MH-2.5
S8 PACKAGE
8-LEAD PLASTIC SO
3401
3402
34I01
34I02
ORDER PART NUMBER
BOTTOM VIEW
TJMAX = 175°C, θJA = 150°C/ W
1.2V
LT1034BCZ-1.2
LT1034BCZ-2.5
LT1034BIZ-1.2
LT1034BIZ-2.5
LT1034CZ-1.2
LT1034CZ-2.5
LT1034IZ-1.2
LT1034IZ-2.5
7V
Z PACKAGE
3-LEAD TO-92 PLASTIC
T
JMAX = 100°C, θJA = 160°C/ W
ELECTRICAL CHARACTERISTICS
TA = 25°C, unless otherwise specified.
LT1034-1.2
MIN
LT1034-2.5
TYP
PARAMETER
CONDITIONS
TYP
MAX
MIN
MAX
UNITS
Reverse Breakdown Voltage
I = 100µA
1.210 1.225 1.240
1.205 1.225 1.245
2.46
2.43
2.5
2.5
1.0
1.5
6.0
10.0
15
10
20
2.54
2.57
3.0
6.0
16.0
20.0
30
V
V
mV
mV
mV
mV
R
●
●
Reverse Breakdown Change
with Current
Note 3
0.5
1.0
4.0
6.0
2.0
4.0
8.0
2mA ≤ I ≤ 20mA
R
●
●
●
15.0
Minimum Operating Current
Temperature Coefficient
10
20
µA
ppm/°C
ppm/°C
I = 100µA LT1034B
R
10
20
20
40
20
40
LT1034
Reverse Dynamic Impedance (Note 2) I = 100µA
0.25
0.50
4
1.0
2.0
0.5
1.0
6
1.5
2.5
Ω
Ω
R
●
●
Low Frequency Noise
Long-Term Stability
I = 100µA, 0.1Hz ≤ F ≤ 10Hz
µV
P-P
R
I = 100µA
R
20
20
ppm√khrs
2
LT1034-1.2/LT1034-2.5
7V Reference. TA = 25°C, unless otherwise specified.
ELECTRICAL CHARACTERISTICS
PARAMETER
CONDITIONS
I = 100µA
MIN
6.80
6.75
TYP
7.0
7.0
MAX
UNITS
Reverse Breakdown Voltage
7.3
7.4
V
V
R
●
●
Reverse Breakdown Change
with Current
100µA ≤ I ≤ 1mA
90
140
190
250
350
mV
mV
mV
mV
R
100µA ≤ I ≤ 1mA
100
160
200
R
1mA ≤ I ≤ 20mA
R
1mA ≤ I ≤ 20mA
●
●
R
Temperature Coefficient
Long-Term Stability
I = 100µA
I = 100µA
R
40
20
ppm/°C
ppm√khrs
R
The
●
denotes specifications which apply over the full operating
Note 2: This parameter guaranteed by “reverse breakdown change with
current” test.
temperature range.
Note 1: Forward biasing either diode will affect the operation of the other
diode.
Note 3: For the LT1034-1.2: 20µA ≤ I ≤ 2mA. For the LT1034-2.5:
R
30µA ≤ I ≤ 2mA.
R
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TYPICAL PERFORMANCE CHARACTERISTICS
Reverse Voltage Change 1.2V
Reverse Voltage Change 7V
0.1Hz to 10Hz Noise 1.2V
8
6
0.4
0.3
0.2
0.1
0
11
10
8
T
= –55°C TO 125°C
A
T
= 25°C
A
7V
6
1.2V
4
4
2
0
–2
–4
–6
–8
–10
–11
2
0
–2
–0.1
0.01
0.1
1
10
100
0.1
1
10
100
0
1
2
3
4
5
6
7
8
9
10 11 12
REVERSE CURRENT (mA)
1s/DIV
REVERSE CURRENT (mA)
LT1034 • TPC01
LT1034 • TPC02
LT1034 • TPC03
Reverse Dynamic Impedance 2.5V
Reverse Dynamic Impedance 7V
Reverse Dynamic Impedance 1.2V
100
10
1
100
10
1
60
50
40
30
20
10
0
T
I
= 25°C
T
= 25°C
I
= 100µA
A
Z
A
Z
= 100µA
f = 25Hz
1.2V
1.2V
0.1
0.01
0.1
0.01
0.1
1
10
100
0.1
1
10
100
10
100
1k
10k
100k
REVERSE CURRENT (mA)
FREQUENCY (Hz)
FREQUENCY (kHz)
LT1034 • TPC04
LT1034 • TPC06
LT1034 • TPC05
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 represen-
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.
3
LT1034-1.2/LT1034-2.5
W
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TYPICAL PERFORMANCE CHARACTERISTICS
Reverse Characteristics 1.2V
Reverse Characteristics 2.5V
Reverse Characteristics 7V
100
100
80
60
40
20
0
16
12
8
T
= –55°C TO 125°C
REF
A
T
= –55°C TO 125°C
REF
A
V
= 7V
V
= 1.2V
10
1
4
0.1
0.01
0
2.490
2.495
2.500
2.505
2.510
0.8
0.4
REVERSE VOLTAGE (V)
1
2
3
5
6
7
9
0
1.2
1.6
0
4
8
10
REVERSE VOLTAGE (V)
REVERSE VOLTAGE (V)
LT1034 • TPC09
LT1034 • TPC02
LT1034 • TPC07
Forward Characteristics
Response Time
Response Time
1.2
0.8
0.4
0
T
= 25°C
A
8
6
4
2
0
OUTPUT
82k
1.5
1.0
0.5
0
OUTPUT
36k
V
V
IN
OUT
V
V
OUT
IN
7V
1.2V
INPUT
INPUT
15
0
5
0
0.01
0.1
1
10
100
0
20
40
60
80
0
300
400
100
200
TIME (µs)
TIME (µs)
FORWARD CURRENT (mA)
LT1034 • TPC10
LT1180A • TPC11
LT1180A • TPC12
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PACKAGE DESCRIPTION Dimension in inches (millimeters) unless otherwise noted.
H Package
Metal Can
Z Package
Plastic
0.209 – 0.219
(5.309 – 5.537)
0.100
(2.540)
TYP
0.180 ± 0.005
0.050
(1.270)
TYP
0.060 ± 0.005
(1.524± 0.127)
DIA
(4.572 ± 0.127)
0.050
(1.270)
TYP
0.178 – 0.195
(4.521 – 4.953)
0.085 – 0.105
(2.159 – 2.667)
0.90
(2.286)
NOM
0.015
(0.381)
MAX
0.500
(12.700)
MIN
FOR 3-LEAD PACKAGE ONLY
0.180 ± 0.005
(4.572 ± 0.127)
45°
0.028 – 0.048
0.036 – 0.046
(0.711 – 1.219)
(0.914 – 1.168)
0.025
(0.635)
MAX
H3(46) 0594
5°
NOM
0.500
(12.70)
MIN
0.050
(1.270)
MAX
UNCONTROLLED
LEAD DIA
0.016 – 0.019
(0.406 – 0.483)
DIA
0.189 – 0.197*
(4.801 – 5.004)
S8 Package
8
7
6
5
8-Lead Plastic SO
0.020 ± 0.003
(0.508 ± 0.076)
0.015 ± 0.02
(0.381 ± 0.051)
0.010 – 0.020
(0.254 – 0.508)
× 45°
0.053 – 0.069
(1.346 – 1.752)
0.016 ± 0.03
(0.406 ± 0.076)
0.060 ± 0.010
(1.524 ± 0.254)
0.004 – 0.010
(0.101 – 0.254)
0.050 ± 0.005
(1.270 ± 0.127)
0.150 – 0.157*
(3.810 – 3.988)
0.008 – 0.010
(0.203 – 0.254)
0.228 – 0.244
(5.791 – 6.197)
0°– 8° TYP
0.140 ± 0.010
(3.556 ± 0.127)
0.016 – 0.050
0.406 – 1.270
0.050
(1.270)
0.014 – 0.019
(0.355 – 0.483)
BSC
1
2
3
4
SO8 0294
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm).
10° NOM
Z3 0694
LT/GP 0995 2K REV D • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1995
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
4
●
●
(408) 432-1900 FAX: (408) 434-0507 TELEX: 499-3977
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