|
|
PDF AD8290 Data sheet ( Hoja de datos )
| Número de pieza | AD8290 | |
| Descripción | CMOS Sensor Amplifier | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
|
1. AD8290 CMOS Sensor Amplifier  Hay una vista previa y un enlace de descarga de AD8290 (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
|
No Preview Available !
FEATURES
Supply voltage range: 2.6 V to 5.5 V
Low power
1.2 mA + 2× excitation current
0.5 μA shutdown current
Low input bias current: ±100 pA
High CMRR: 120 dB
Space savings: 16-lead, 3.0 mm × 3.0 mm × 0.55 mm LFCSP
Excitation current
300 μA to 1300 μA range
Set with external resistor
APPLICATIONS
Bridge and sensor drives
Portable electronics
G = 50, CMOS Sensor Amplifier
with Current Excitation
AD8290
GENERAL DESCRIPTION
The AD8290 contains both an adjustable current source to
drive a sensor and a difference amplifier to amplify the signal
voltage. The amplifier is set for a fixed gain of 50. The AD8290
is an excellent solution for both the drive and the sensing aspects
required for pressure, temperature, and strain gage bridges.
In addition, because the AD8290 operates with low power,
works with a range of low supply voltages, and is available in a
low profile package, it is suitable for drive/sense circuits in
portable electronics as well.
The AD8290 is available in a lead free 3.0 mm × 3.0 mm ×
0.55 mm package and is operational over the industrial
temperature range of −40°C to +85°C.
CBRIDGE
FUNCTIONAL BLOCK DIAGRAM
CFILTER
ENBL
RSET
11
6
www.DataSheet.co.kr
5
3 2 VCC
13
10 GND
15
4
ANTI-
14
VREF AD8290
ALIASING
FILTER
NC NC NC NC NC NC
1 7 8 9 12 16
ADC
Figure 1.
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2007–2008 Analog Devices, Inc. All rights reserved.
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltage
Input Voltage
Differential Input Voltage1
Output Short-Circuit Duration to GND
Storage Temperature Range
Operating Temperature Range
Junction Temperature Range
Lead Temperature (Soldering, 10 sec)
Rating
6V
+VSUPPLY
±VSUPPLY
Indefinite
−65°C to +150°C
−40°C to +85°C
−65°C to +150°C
300°C
1 Differential input voltage is limited to ±5.0 V, the supply voltage, or
whichever is less.
AD8290
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 3.
Package Type
θJA θJC
16-Lead LFCSP (0.55 mm)
42.5 7.7
Unit
°C/W
ESD CAUTION
www.DataSheet.co.kr
Rev. B | Page 5 of 20
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
40
35
30
25
20
15
10
5
0
–16.0 –15.5 –15.0 –14.5 –14.0 –13.5 –13.0 –12.5 –12.0
DRIFT (ppm/°C)
Figure 27. Gain Drift from −40°C to +85°C at 2.6 V Supply
40
35
30
25
20
15
10
5
0
–16.0 –15.5 –15.0 –14.5 –14.0 –13.5 –13.0 –12.5 –12.0
DRIFT (ppm/°C)
Figure 28. Gain Drift from −40°C to +85°C at 3.6 V Supply
40
35
30
25
20
15
10
5
0
–16.0 –15.5 –15.0 –14.5 –14.0 –13.5 –13.0 –12.5 –12.0
DRIFT (ppm/°C)
Figure 29. Gain Drift from −40°C to +85°C at 5.0 V Supply
AD8290
100
10
1
1 10 100 1k 10k
FREQUENCY (Hz)
Figure 30. Frequency Response for Supply Range of 2.6 V to 5.0 V
(External CFILTER = 6.8 nF, Antialiasing Capacitor = 68 nF)
310
308
306
304
302
300
298
296
294
www.DataSheet.co.kr
292
290
2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.25 5.50
POWER SUPPLY (V)
Figure 31. Low Excitation Current vs. Power Supply
1.310
1.308
1.306
1.304
1.302
1.300
1.298
1.296
1.294
1.292
1.290
2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.25 5.50
POWER SUPPLY (V)
Figure 32. High Excitation Current vs. Power Supply
Rev. B | Page 11 of 20
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet AD8290.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AD829 | Low Noise Video Op Amp | Analog Devices |
| AD8290 | CMOS Sensor Amplifier | Analog Devices |
| AD8293G160 | Zero-Drift In-Amp | Analog Devices |
| AD8293G80 | Zero-Drift In-Amp | Analog Devices |
| 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 |