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PDF LT1460-2.5 Data sheet ( Hoja de datos )
| Número de pieza | LT1460-2.5 | |
| Descripción | Micropower Precision Series Reference | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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LT1460-2.5
Micropower Precision
Series Reference
FEATURES
s Trimmed to High Accuracy: 0.075% Max
s Low Drift: 10ppm/°C Max
s Industrial Temperature Range SO Package
s Temperature Coefficient Guaranteed to 125°C
s Low Supply Current: 130µA Max
s Minimum Output Current: 20mA
s No Output Capacitor Required
s Reverse Battery Protection
s Minimum Input/Output Differential: 0.9V
s Available in Small MSOP Package
U
APPLICATIO S
s Handheld Instruments
s Precision Regulators
s A/D and D/A Converters
s Power Supplies
s Hard Disk Drives
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
Basic Connection
3.4V
TO 20V
LT1460-2.5
IN OUT
C1
0.1µF
GND
2.5V
1460-2.5 TA01
DESCRIPTIO
The LT®1460-2.5 is a micropower bandgap reference that
combines very high accuracy and low drift with low power
dissipation and small package size. This series reference
uses curvature compensation to obtain low temperature
coefficient and trimmed precision thin-film resistors to
achieve high output accuracy. The reference will supply up to
20mA, making it ideal for precision regulator applications, yet
it is almost totally immune to input voltage variations.
This series reference provides supply current and power
dissipation advantages over shunt references that must idle
the entire load current to operate. Additionally, the LT1460-
2.5 does not require an output compensation capacitor, but
it is stable with capacitive loads. This feature is important in
critical applications where PC board space is a premium or
fast settling is demanded. Reverse battery protection keeps
the reference from conducting current and being damaged.
The LT1460-2.5 is available in the 8-lead MSOP, SO, PDIP
and the 3-lead TO-92 packages. It is also available in the
SOT-23 package (see separate data sheet LT1460S3-2.5).
Typical Distribution of Output Voltage
S8 Package
20
18 1400 PARTS
FROM 2 RUNS
16
14
12
10
8
6
4
2
0
–0.10
–0.06 –0.02 0 0.02 0.06 0.10
OUTPUT VOLTAGE ERROR (%)
1460-2.5 TA02
1
http://www.Datasheet4U.com
1 page  
LT1460-2.5
TYPICAL PERFORMANCE CHARACTERISTICS
Output Voltage Temperature Drift
2.503
3 TYPICAL PARTS
2.502
2.501
2.500
2.499
2.498
–50 –25 02
5 50
TEMPERATURE (°C)
75 100
1460-2.5 G04
Power Supply Rejection Ratio
vs Frequency
90
80
70
60
50
40
30
20
10
0
–10
100
1k 10k 100k
FREQUENCY (Hz)
1M
1460-2.5 G07
Output Voltage Noise Spectrum
1000
Supply Current vs Input Voltage
175
150 125°C
125
25°C
100
75 –55°C
50
25
0
0 51
0 15 20
INPUT VOLTAGE (V)
1460-2.5 G05
Output Impedance vs Frequency
1k
CL= 0.1µF
CL = 0
100
10
CL= 1µF
1
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
1460-2.5 G08
Output Noise 0.1Hz to 10Hz
100
10
100 1k 10k 100k
FREQUENCY (Hz)
1460-2.5 G10
0 1 2 3 4 5 6 7 8 9 10
TIME (SEC)
1460-2.5 G11
Line Regulation
2.5014
2.5010
125°C
2.5006
2.5002
25°C
2.4998
2.4994
– 55°C
2.4990
0 26 4
8 10 12 14 16 18 20
INPUT VOLTAGE (V)
1460-2.5 G06
Transient Responses
10
1
0.1
0
IOUT = 10mA
1460 G09
Long-Term Drift
Three Typical Parts (S8 Package)
2.5000
2.4998
2.4996
2.4994
2.4992
2.4990
0
200 400 600 800 1000
TIME (HOURS)
1460-2.5 G12
5
5 Page 
LT1460-2.5
PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted.
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)
*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)
TYP
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 0996
0.060 ± 0.005
(1.524± 0.127)
DIA
0.180 ± 0.005
(4.572 ± 0.127)
0.500
(12.70)
MIN
0.050 ± 0.005
(1.270 ± 0.127)
Z Package
3-Lead Plastic TO-92 (Similar to TO-226)
(LTC DWG # 05-08-1410)
0.180 ± 0.005
(4.572 ± 0.127)
0.90
(2.286)
NOM
0.060 ± 0.010
(1.524 ± 0.254)
0.140 ± 0.010
(3.556 ± 0.127)
0.050 UNCONTROLLED
(1.270) LEAD DIMENSION
MAX
0.016 ± 0.003
(0.406 ± 0.076)
5°
NOM
10° NOM
0.015 ± 0.002
(0.381 ± 0.051)
Z3 (TO-92) 0695
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
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| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LT1460-2.5.PDF ] | |
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