|
|
PDF LT1389ACS8-1.25 Data sheet ( Hoja de datos )
| Número de pieza | LT1389ACS8-1.25 | |
| Descripción | Nanopower Precision Shunt Voltage Reference | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LT1389ACS8-1.25 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
|
No Preview Available !
FEATURES
s Initial Voltage Accuracy: 0.05%
s Low Operating Current: 800nA
s Low Drift: 10ppm/°C Max
s Less Than 1Ω Dynamic Impedance
s Available in 1.25V, 2.5V, 4.096V and
5V SO-8 Packages
U
APPLICATIO S
s Portable Meters
s Precision Regulators
s A/D and D/A Converters
s Calibrators
TYPICAL APPLICATIO
5V
4.7M
VOUT
1.25V
LT1389-1.25
1389 TA01
LT1389
Nanopower Precision
Shunt Voltage Reference
DESCRIPTIO
The LT®1389 is a nanopower, precision shunt voltage
reference. The bandgap reference uses trimmed preci-
sion thin-film resistors and improved curvature correction
techniques to achieve 0.05% initial voltage accuracy with
guaranteed 10ppm/°C maximum temperature drift. Volt-
age regulation is maintained to an ultralow 800nA operating
current. Advances in design, processing and packaging
achieve low temperature cycling hysteresis.
The LT1389 does not require an output compensation
capacitor, but is stable with capacitive loads. Low dy-
namic impedance makes the LT1389 reference easy to
use from unregulated supplies.
The LT1389 reference can be used as a high performance
upgrade to the LM185/LM385, LT1004, LT1034 and
LT1634 where lowest power and guaranteed tempera-
ture drift are required.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Temperature Drift
2.0
IR = 0.8µA
1.5 VOUT = 1.25V
1.0
0.5
0
– 0.5
– 1.0
– 1.5
– 2.0
0
10 20 30 40 50 60 70
TEMPERATURE (°C)
1389 TA02
1
1 page  
1.25V TYPICAL PERFOR A CE CHARACTERISTICS
LT1389
Reverse Characteristics
1.0
TA = – 40°C TO 85°C
0.8
0.6
0.4
0.2
0
0 0.4 0.8 1.2 1.6
REVERSE VOLTAGE (V)
1389-1.25 G01
Reverse Dynamic Impedance
1000
TA = 25°C
f = 25Hz
100
10
1
0.1
0.001
0.01 0.1
1
REVERSE CURRENT (mA)
10
1389-1.25 G04
0.1Hz to 10Hz Noise
25
IR = 0.8µA
20
15
10
5
0
–5
–10
–15
– 20
– 25
0
10 20 30 40 50
TIME (SEC)
60 70
1389-1.25 G07
Temperature Drift
2.0
1.5
1.0
0.5
0
IR = 250µA
– 0.5
– 1.0
IR = 0.8µA
– 1.5
– 2.0
– 40
–20 0 20 40
TEMPERATURE (°C)
60 80
1389-1.25 G02
Dynamic Impedance vs Frequency
100
TA = 25°C
10
1
IR = 0.8µA
COUT = 0µF
IR = 0.8µA
COUT = 0.047µF
IR = 10µA
0.1 COUT = 0.1µF
IR = 10µA
COUT = 0µF
0.01
0.01
0.1 1
FREQUENCY (kHz)
10
1389-1.25 G05
Response Time
1.5V
1V
0.5V
0V
5V
0V
IR = 0.8µA
COUT = 0µF
1ms/DIV
1389-1.25 G08
Reverse Voltage Change
vs Current
1.2
1.0
0.8
– 40°C
0.6
0.4 25°C
0.2 85°C
0
0.001
0.01 0.1
1
REVERSE CURRENT (mA)
10
1389-1.25 G03
Forward Characteristics
1.0
TA = 25°C
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.001
0.01 0.1 1 10 100
FORWARD CURRENT (mA)
1389-1.25 G06
Response Time
1.5V
1V
0.5V
0V
5V
0V
IR = 0.8µA
COUT = 0.1µF
200ms/DIV
1389-1.25 G09
5
5 Page 
PACKAGE DESCRIPTIO Dimensions in inches (millimeters) unless otherwise noted.
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.189 – 0.197*
(4.801 – 5.004)
8 765
LT1389
0.228 – 0.244
(5.791 – 6.197)
0.150 – 0.157**
(3.810 – 3.988)
12
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
34
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
BSC
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 LT1389ACS8-1.25.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LT1389ACS8-1.25 | Nanopower Precision Shunt Voltage Reference | Linear Technology |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |