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PDF LT1460-10 Data sheet ( Hoja de datos )
| Número de pieza | LT1460-10 | |
| Descripción | Micropower Precision Series Reference | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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LT1460-10
Micropower Precision
Series Reference
FEATURES
s High Accuracy: 0.075% Max
s Low Drift: 10ppm/°C Max
s Industrial Temperature Range SO-8 Package
s Low Supply Current: 270µA 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
APPLICATIONS
s Handheld Instruments
s Precision Regulators
s A/D and D/A Converters
s Power Supplies
s Hard Disk Drives
TYPICAL APPLICATION
10.9V
TO 20V
Basic Connection
LT1460-10
IN OUT
C1
0.1µF
GND
10V
1460-10 TA01
DESCRIPTION
The LT®1460-10 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 a 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 LT1460-10
does not require an output capacitor, but it is stable with
capacitive loads. This feature is important in critical applica-
tions 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 LT1460-10 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 LT1460S3-10
(SOT-23).
, LTC and LT are registered trademarks of Linear Technology Corporation.
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 (%)
1460-10 TA02
1
1 page  
TYPICAL PERFORMANCE CHARACTERISTICS
LT1460-10
Power Supply Rejection Ratio
vs Frequency
100
90
80
70
60
50
40
30
20
10
0
0.1 1
10 100 1000
INPUT FREQUENCY (kHz)
1460-10 G07
Output Impedance vs Frequency
1000
CL = 0µF
100
CL = 0.1µF
10
CL = 1µF
1
0.1
0.01
0.1 1 10 100
FREQUENCY (kHz)
1000
1460-10 G08
Transient Responses
10
1
0.1
0
IOUT = 10mA
200µs/DIV
Output Voltage Noise Spectrum
10
Output Noise 0.1Hz to 10Hz
1460-10 G09
1
0.1
0.01
0.1 1
10
FREQUENCY (kHz)
100
1460-10 G10
0 2 4 6 8 10 12 14
TIME (SEC)
1460-10 G11
APPLICATIONS INFORMATION
Precision Regulator
The LT1460-10 is ideal as a precision regulator, and since
it operates in series mode it does not require a current
setting resistor. The reference can supply up to 20mA of
load current with good transient response. Load regula-
tion at 20mA output is typically 70ppm/mA meaning the
output changes only 14mV.
Capacitive Loads
The LT1460-10 is designed to be stable with capacitive
loads. With no capacitive load, the reference is ideal for
fast settling or applications where PC board space is a
premium. The test circuit shown in Figure 1 is used to
measure the response time for various load currents and
load capacitors. The 1V step from 10V to 9V produces a
5
5 Page 
LT1460-10
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)
BSC
0.228 – 0.244
(5.791 – 6.197)
0.189 – 0.197*
(4.801 – 5.004)
8 765
0.150 – 0.157**
(3.810 – 3.988)
SO8 0695
1 2 34
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
0.050 UNCONTROLLED
(1.270) LEAD DIMENSION
MAX
0.016 ± 0.003
(0.406 ± 0.076)
5°
NOM
0.060 ± 0.010
(1.524 ± 0.254)
0.140 ± 0.010
(3.556 ± 0.127)
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
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LT1460-10.PDF ] | |
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