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PDF LT1019IN8-2.5 Data sheet ( Hoja de datos )
| Número de pieza | LT1019IN8-2.5 | |
| Descripción | Precision Reference | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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LT1019
Precision Reference
FEATURES
s Tight Initial Output Voltage: < 0.05%
s Ultralow Drift: 3ppm/°C Typical
s Series or Shunt Operation
s Curvature Corrected
s Ultrahigh Line Rejection: ≈ 0.5ppm/V
s Low Output Impedance: ≈ 0.02Ω
s Plug-In Replacement for Present References
s Available at 2.5V, 4.5V, 5V, and 10V
s 100% Noise Tested
s Temperature Output
s Industrial Temperature Range in SO-8
U
APPLICATIO S
s Negative Shunt References
s A/D and D/A Converters
s Precision Regulators
s Constant Current Sources
s V/F Converters
s Bridge Excitation
DESCRIPTIO
The LT®1019 is a third generation bandgap voltage refer-
ence utilizing thin film technology and a greatly improved
curvature correction technique. Wafer level trimming of
both reference and output voltage combines to produce
units with high yields to very low TC and tight initial
tolerance of output voltage.
The LT1019 can both sink and source up to 10mA and can
be used in either the series or shunt mode. This allows the
reference to be used for both positive and negative output
voltages without external components. Minimum input/
output voltage is less than 1V in the series mode, providing
improved tolerance of low line conditions.
The LT1019 is available in four voltages: 2.5V, 4.5V, 5V
and 10V. It is a direct replacement for most bandgap
references presently available including AD580, AD581,
REF-01, REF-02, MC1400, MC1404 and LM168.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
15V 357Ω*
0.5W 5V
IN OUT
LT1019-5
GND
+
A1†
LT1637
–
Ultralinear Strain Guage
350Ω
BRIDGE
ACTIVE
ELEMENT
– 5V
357Ω*
0.5W
– 15V
R3
2M
R2
20k –
R4 A2
20k +LT1001
GAIN = 100
R5
2M R6**
2M
LT1019 • TA01
*REDUCES REFERENCE AND AMPLIFIER
LOADING TO ≈0.
**IF R6 = R3, BRIDGE IS NOT LOADED BY R2 AND R4.
†A1 VOS AND DRIFT ARE NOT CRITICAL BECAUSE A2
ACTS AS A DIFFERENTIAL AMPLIFIER.
Output Voltage Drift
1.003
1.002
1.001
1.000
10ppm/°C
FULL TEMP RANGE “BOX”
LT1019
CURVE
0.999
5ppm/°C
0°C TO 70°C “BOX”
0.998
UNCOMPENSATED
“STANDARD” BANDGAP
0.997
–50 –25
DRIFT CURVE
0 25 50 75
TEMPERATURE (˚C)
100 125
1019 TA02
1
1 page  
TYPICAL PERFOR A CE CHARACTERISTICS
Quiescent Current (LT1019-2.5)
1.6
1.4
1.2
1.0 125°C
0.8 25°C
– 55°C
0.6
0.4
0.2
0
0 5 10 15 20 25 30 35 40 45
INPUT VOLTAGE (V)
LT1019 • TPC01
Minimum Input/Output Voltage
Differential
10
7.5
5.0
TJ = 125°C
2.5
TJ = –55°C
TJ = 25°C
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
INPUT/OUTPUT VOLTAGE (V)
LT1019 • TPC04
Shunt Mode Characteristics
(LT1019-2.5)
1.0
INPUT OPEN
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
TJ = 125°C
TJ = 25°C
TJ = –55°C
0.5 1.0 1.5 2.0 2.5 3.0 3.5
OUTPUT-TO-GROUND VOLTAGE (V)
4.0
LT1019 • TPC07
Quiescent Current
(LT1019-4.5/LT1019-5)
1.6
1.4
1.2
1.0 125°C
25°C
0.8
0.6 –55°C
0.4
0.2
0
0 5 10 15 20 25 30 35 40 45
INPUT VOLTAGE (V)
LT1019 • TPC02
Load Regulation
2.0
TJ = 25°C
1.5
1.0 LT1019-10
LT1019-4.5/LT1019-5
0.5
LT1019-2.5
0
– 0.5
– 1.0
– 1.5
– 2.0
–10 –8 –6 –4 –2 0 2 4 6 8 10
SINKING
SOURCING
OUTPUT CURENT (mA)
LT1019 • TPC05
Shunt Mode Characteristics
(LT1019-5)
1.0
INPUT OPEN
0.9
0.8
0.7
0.6
0.5
0.4
0.3 TJ = 125°C
0.2
TJ = 25°C
0.1 TJ = –55°C
0
01 2 34 56 7
OUTPUT-TO-GROUND VOLTAGE (V)
8
LT1019 • TPC08
LT1019
Quiescent Current (LT1019-10)
1.6
1.4
1.2
1.0 125°C
25°C
0.8
0.6 –55°C
0.4
0.2
0
0 5 10 15 20 25 30 35 40 45
INPUT VOLTAGE (V)
LT1019 • TPC03
Ripple Rejection
120
TJ = 25°C
110
LT1019-10
100 LT1019-4.5
90
LT1019-2.5
LT1019-5
80
70
60
50
40
10
100 1k 10k 100k
FREQUENCY (Hz)
1M
LT1019 • TPC06
Shunt Mode Characteristics
(LT1019-10)
1.0
0.9 INPUT OPEN
0.8
0.7
0.6
0.5
0.4
0.3 TJ = 125°C
0.2
0.1
0
0
TJ = 25°C
TJ = –55°C
2 4 6 8 10 12 14
OUTPUT-TO-GROUND VOLTAGE (V)
16
LT1019 • TPC09
5
5 Page 
U
PACKAGE DESCRIPTIO Dimensions in inches (millimeters) unless otherwise noted.
H Package
8-Lead TO-5 Metal Can (0.200 PCD)
(LTC DWG # 05-08-1320)
LT1019
0.040
(1.016)
MAX
SEATING
PLANE
0.010 – 0.045*
(0.254 – 1.143)
0.335 – 0.370
(8.509 – 9.398)
DIA
0.305 – 0.335
(7.747 – 8.509)
0.050
(1.270)
MAX
0.165 – 0.185
(4.191 – 4.699)
0.016 – 0.021**
(0.406 – 0.533)
GAUGE
PLANE
0.500 – 0.750
(12.700 – 19.050)
45°TYP
0.028 – 0.034
(0.711 – 0.864)
0.027 – 0.045
(0.686 – 1.143)
PIN 1
REFERENCE
PLANE
0.110 – 0.160
(2.794 – 4.064)
INSULATING
STANDOFF
0.200
(5.080)
TYP
*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND 0.045" BELOW THE REFERENCE PLANE
**FOR
SOLDER
DIP
LEAD
FINISH,
LEAD
DIAMETER
IS
0.016
(0.406
–
–
0.024
0.610)
H8(TO-5) 0.200 PCD 1197
0.300 – 0.325
(7.620 – 8.255)
N8 Package
8-Lead PDIP (Narrow 0.300)
(LTC DWG # 05-08-1510)
0.045 – 0.065
(1.143 – 1.651)
0.130 ± 0.005
(3.302 ± 0.127)
0.400*
(10.160)
MAX
87 65
0.009 – 0.015
(0.229 – 0.381)
0.065
(1.651)
TYP
+0.035
0.325 –0.015
( )8.255
+0.889
–0.381
0.100
(2.54)
BSC
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
0.125
(3.175) 0.020
MIN (0.508)
0.018 ± 0.003 MIN
(0.457 ± 0.076)
0.255 ± 0.015*
(6.477 ± 0.381)
12
34
N8 1098
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.010
(0.254
–
–
0.020
0.508)
×
45°
0.008 – 0.010
(0.203 – 0.254)
0.053 – 0.069
(1.346 – 1.752)
0°– 8° TYP
0.016 – 0.050
(0.406 – 1.270)
0.014 – 0.019
(0.355 – 0.483)
TYP
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
BSC
0.228 – 0.244
(5.791 – 6.197)
0.189 – 0.197*
(4.801 – 5.004)
8 765
1 2 34
0.150 – 0.157**
(3.810 – 3.988)
SO8 1298
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-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LT1019IN8-2.5.PDF ] | |
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