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| 型号： | AD8235ACBZ-P7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC AMP INSTR RRIO 23KHZ 11WLCSP |
| 产品变化通告： | 8mm Carrier Tape Changes 28/Feb/2012 |
| 特色产品： | AD8235 Instrumentation Amplifier |
| 标准包装： | 1 |
| 放大器类型： | 仪表 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 0.011 V/µs |
| -3db带宽： | 23kHz |
| 电流 - 输入偏压： | 1pA |
| 电压 - 输入偏移： | 2500µV |
| 电流 - 电源： | 30µA |
| 电流 - 输出 / 通道： | 55mA |
| 电压 - 电源，单路/双路(±)： | 1.8 V ~ 5.5 V，±0.9 V ~ 2.75 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 11-WFBGA，WLCSP |
| 供应商设备封装： | 11-WLCSP（1.57x2.04） |
| 包装： | 标准包装 |
| 产品目录页面： | 771 (CN2011-ZH PDF) |
| 其它名称： | AD8235ACBZ-P7DKR |
40 μA Micropower Instrumentation
Amplifier in WLCSP Package
AD8235
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
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
Inc. All rights reserved.
2009 Analog Devices,
FEATURES
Low power
40 μA maximum supply current
6 nA shutdown current
Low input currents
50 pA input bias current
25 pA input offset current
High Common Mode Rejection Ratio (CMRR)
110 dB CMRR , G = 100
Space saving
WLCSP package
Zero input crossover distortion
Versatile
Rail-to-rail input and output
Shutdown
Gain set with single resistor (G = 5 to 200)
AD8236: μSOIC package version of AD8235
APPLICATIONS
Medical instrumentation
Low-side current sense
Portable electronics
GENERAL DESCRIPTION
The AD8235 is the smallest and lowest power instrumentation
amplifier in the industry. It is available in a 1.5 mm × 2.2 mm
wafer level chip scale package (WLCSP). The AD8235 draws
a maximum quiescent current of 40 μA. In addition, it draws a
maximum 500 nA of current during shutdown mode, making
it an excellent instrumentation amplifier for battery powered,
portable applications.
The AD8235 can operate on supply voltages as low as 1.8 V. The
input stage allows for wide rail-to-rail input voltage range without
the crossover distortion, common in other designs. The rail-to-
rail output enables easy interfacing to ADCs.
The AD8235 is an excellent choice for signal conditioning. Its
low input bias current of 50 pA and high CMRR of 110 dB
(G = 100) offer tremendous value for its size and low power.
It is specified over the extended industrial temperature range of
40°C to 125°C.
CONNECTION DIAGRAM
RG
REF
–IN
+IN
VOUT
210k
52.5k
AD8235
C3
+VS
RG
–VS
B3
A1
D1
ESD
PROTECTION
ESD
PROTECTION
A3
D3
B1
SDN
A2
C1
NC B2
NC D2
ESD
PROTECTION
ESD
PROTECTION
ESD
PROTECTION
OP AMP
A
OP AMP
B
ESD
PROTECTION
0
82
11
-00
1
TOP VIEW
(BALL SIDE DOWN)
Not to Scale
Figure 1.
PIN CONFIGURATION
BALL A1
INDICATOR
+VS
–VS
VOUT
SDN
–IN
RG
REF
NC
RG
NC
NC = NO CONNECT
+IN
08
2
1
-00
4
1
A
B
C
D
23
Figure 2. 11-Ball WLCSP (CB-11-1)
1.0
2.0
4.0
3.0
0.5
1.5
3.5
2.5
0
OUTPUT VOLTAGE (V)
IN
P
U
T
C
O
M
ON
-M
OD
E
V
O
LT
A
G
E
5.0
4.5
(
V
)
5.5
5.0
0.5
–0.5
1.5 2.0
3.0
4.0
4.5
0
1.0
2.5
3.5
G = 5
VS = 5V
VREF = 2.5V
G = 5
VS = 1.8V
VREF = 0.9V
0
82
11
-00
2
Figure 3. Wide Common-Mode Voltage Range vs. Output Voltage
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