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| 型號： | AD8253ARMZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP INST ICMOS LDRIFT 10MSOP |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 系列： | iCMOS® |
| 放大器類型： | 儀表 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 20 V/µs |
| -3db帶寬： | 10MHz |
| 電流 - 輸入偏壓： | 5nA |
| 電壓 - 輸入偏移： | 150µV |
| 電流 - 電源： | 4.6mA |
| 電流 - 輸出 / 通道： | 37mA |
| 電壓 - 電源，單路/雙路(±)： | ±5 V ~ 15 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 10-MSOP |
| 包裝： | 帶卷 (TR) |
10 MHz, 20 V/μs, G = 1, 10, 100, 1000 iCMOS
Programmable Gain 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
2008–2012 Analog Devices, Inc. All rights reserved.
www.analog.com
FEATURES
Small package: 10-lead MSOP
Programmable gains: 1, 10, 100, 1000
Digital or pin-programmable gain setting
Wide supply: ±5 V to ±15 V
Excellent dc performance
High CMRR: 100 dB (minimum), G = 100
Low gain drift: 10 ppm/°C (maximum)
Low offset drift: 1.2 μV/°C (maximum), G = 1000
Excellent ac performance
Fast settling time: 780 ns to 0.001% (maximum)
High slew rate: 20 V/μs (minimum)
Low distortion: 110 dB THD at 1 kHz,10 V swing
High CMRR over frequency: 100 dB to 20 kHz (minimum)
Low noise: 10 nV/√Hz, G = 1000 (maximum)
Low power: 4 mA
APPLICATIONS
Data acquisition
Biomedical analysis
Test and measurement
GENERAL DESCRIPTION
The AD8253 is an instrumentation amplifier with digitally
programmable gains that has gigaohm (GΩ) input impedance,
low output noise, and low distortion, making it suitable for
interfacing with sensors and driving high sample rate analog-to-
digital converters (ADCs).
It has a high bandwidth of 10 MHz, low THD of 110 dB, and
fast settling time of 780 ns (maximum) to 0.001%. Offset drift and
gain drift are guaranteed to 1.2 μV/°C and 10 ppm/°C, respectively,
for G = 1000. In addition to its wide input common voltage range,
it boasts a high common-mode rejection of 100 dB at G = 1000
from dc to 20 kHz. The combination of precision dc performance
coupled with high speed capabilities makes the AD8253 an
excellent candidate for data acquisition. Furthermore, this
monolithic solution simplifies design and manufacturing and
boosts performance of instrumentation by maintaining a tight
match of internal resistors and amplifiers.
The AD8253 user interface consists of a parallel port that allows
users to set the gain in one of two different ways (see Figure 1
for the functional block diagram). A 2-bit word sent via a bus
can be latched using the WR input. An alternative is to use
transparent gain mode, where the state of logic levels at the gain
port determines the gain.
FUNCTIONAL BLOCK DIAGRAM
A1
A0
DGND WR
AD8253
+VS
–VS
REF
OUT
+IN
LOGIC
–IN 1
10
8
3
7
4
5
6
2
9
06
98
3-
0
01
Figure 1.
80
70
60
50
40
30
20
10
0
–10
–20
1k
10k
100k
1M
10M
100M
FREQUENCY (Hz)
GA
IN
(
d
B
)
00
69
83
-0
23
G = 1000
G = 100
G = 10
G = 1
Figure 2. Gain vs. Frequency
Table 1. Instrumentation Amplifiers by Category
General
Purpose
Zero
Drift
Mil
Grade
Low
Power
High Speed
PGA
1 Rail-to-rail output.
The AD8253 is available in a 10-lead MSOP package and is
specified over the 40°C to +85°C temperature range, making it
an excellent solution for applications where size and packing
density are important considerations.
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