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參數(shù)資料
| 型號： | AD8290ACPZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/20頁 |
| 文件大小： | 0K |
| 描述： | IC AMP CS CMOS LP 16LFCSP |
| 標準包裝： | 5,000 |
| 放大器類型： | 電流檢測 |
| 電路數(shù)： | 1 |
| -3db帶寬： | 250Hz |
| 電流 - 輸入偏壓： | 100pA |
| 電流 - 電源： | 1.2mA |
| 電壓 - 電源，單路/雙路(±)： | 2.6 V ~ 5.5 V，±1.3 V ~ 2.75 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-UFQFN 裸露焊盤，CSP |
| 供應商設備封裝： | 16-LFCSP-UQ |
| 包裝： | 帶卷 (TR) |
G = 50, CMOS Sensor Amplifier
with Current Excitation
AD8290
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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.
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
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.
FUNCTIONAL BLOCK DIAGRAM
VREF
14
15
13
11
6
5
3
4
10
2
ADC
ANTI-
ALIASING
FILTER
VCC
GND
ENBL
CFILTER
RSET
06
74
5-
00
1
AD8290
CBRIDGE
NC
16
1
12
9
7
8
Figure 1.
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