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| 型號(hào)： | AD8229HRZ-R7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/24頁 |
| 文件大小： | 0K |
| 描述： | IC AMP INST LN 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 放大器類型： | 儀表 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 22 V/µs |
| -3db帶寬： | 15MHz |
| 電流 - 輸入偏壓： | 70nA |
| 電壓 - 輸入偏移： | 100µV |
| 電流 - 電源： | 6.7mA |
| 電流 - 輸出 / 通道： | 35mA |
| 電壓 - 電源，單路/雙路(±)： | ±4 V ~ 17 V |
| 工作溫度： | -40°C ~ 175°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
1 nV/√Hz Low Noise
210°C Instrumentation Amplifier
Data Sheet
Rev. B
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
Fax: 781.461.3113
2011–2012 Analog Devices, Inc. All rights reserved.
FEATURES
Designed and guaranteed for 210°C operation
Low noise
1 nV/√Hz input noise
45 nV/√Hz output noise
High CMRR
126 dB CMRR (minimum), G = 100
80 dB CMRR (minimum) to 5 kHz, G = 1
Excellent ac specifications
15 MHz bandwidth (G = 1)
1.2 MHz bandwidth (G = 100)
22 V/μs slew rate
THD: 130 dBc (1 kHz, G = 1)
Versatile
±4 V to ±17 V dual supply
Gain set with single resistor (G = 1 to 1000)
Specified temperature range
40°C to +210°C, SBDIP package
40°C to +175°C, SOIC package
APPLICATIONS
Down-hole instrumentation
Harsh environment data acquisition
Exhaust gas measurements
Vibration analysis
FUNCTIONAL BLOCK DIAGRAM
TOP VIEW
(Not to Scale)
–IN
1
RG
2
RG
3
+IN
4
+VS
8
VOUT
7
REF
6
–VS
5
AD8229
09
41
2-
0
01
Figure 1.
100
80
60
40
20
0
–20
–40
–60
–80
–100
V
OS
I
(V)
–55 –35 –15
5
25
45
65
85 105 125 145 165 185 205 225
TEMPERATURE (°C)
09
41
2-
0
1
6
Figure 2. Typical Input Offset vs. Temperature (G = 100)
GENERAL DESCRIPTION
The AD8229 is an ultralow noise instrumentation amplifier
designed for measuring small signals in the presence of large
common-mode voltages and high temperatures.
The AD8229 has been designed for high temperature operation.
The process is dielectrically isolated to avoid leakage currents at
high temperatures. The design architecture was chosen to
compensate for the low VBE voltages at high temperatures.
The AD8229 excels at measuring tiny signals. It delivers industry
leading 1 nV/√Hz input noise performance. The high CMRR of
the AD8229 prevents unwanted signals from corrupting the
acquisition. The CMRR increases as the gain increases, offering
high rejection when it is most needed.
The AD8229 is one of the fastest instrumentation amplifiers
available. Its current feedback architecture provides high
bandwidth at high gain, for example, 1.2 MHz at G = 100. The
design includes circuitry to improve settling time after large
input voltage transients. The AD8229 was designed for excellent
distortion performance, allowing use in demanding applications
such as vibration analysis.
Gain is set from 1 to 1000 with a single resistor. A reference pin
allows the user to offset the output voltage. This feature can be
useful when interfacing with analog-to-digital converters.
For the most demanding applications, the AD8229 is available
in an 8-lead side-brazed ceramic dual in-line package (SBDIP).
For space-constrained applications, the AD8229 is available in
an 8-lead plastic standard small outline package (SOIC).
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