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| 型號： | AD8253ARMZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 15/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP INST ICMOS LDRIFT 10MSOP |
| 標準包裝： | 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） |
| 供應商設(shè)備封裝： | 10-MSOP |
| 包裝： | 帶卷 (TR) |
AD8253
Data Sheet
Rev. B | Page 22 of 24
DATA ACQUISITION
The AD8253 makes an excellent instrumentation amplifier
for use in data acquisition systems. Its wide bandwidth, low
distortion, low settling time, and low noise enable it to
condition signals in front of a variety of 16-bit ADCs.
Figure 63 shows the AD825x as part of a total data acquisition
system. The quick slew rate of the AD8253 allows it to condition
rapidly changing signals from the multiplexed inputs. An FPGA
mechanical switches and jumpers allow users to pin strap the
gains when in transparent gain mode.
This system achieved 116 dB of THD at 1 kHz and a signal-to-
noise ratio of 91 dB during testing, as shown in Figure 62.
–70
–80
–90
–100
–110
–120
–130
–140
–150
–160
–170
–60
–10
–20
–30
–40
–50
0
050
06
98
3-
0
62
FREQUENCY (kHz)
A
M
PL
IT
U
D
E
(
d
B
)
5
1015202530354045
Figure 62. FFT of the AD825x in a Total Data Acquisition System
Using the AD8253 1 kHz Signal
AD8253
2
+IN
–IN
A1
A0
VOUT
REF
–VS
+VS
DGND
5
3
4
9
1
7
10
11
12
13
14
15
16
6
2
S1A EN
DA
DB
GND
S2A
S3A
S4A
S1B
S2B
S3B
S4B
A0
A1
VSS
VDD
JMP
+12V –12V
+12V
–12V
JMP
–VS
+5V
DGND
806
0
0 49.9
0
–CH1
+CH1
+CH2
–CH2
+CH3
–CH3
+CH4
–CH4
1nF
2k
0.1F
GND
+12V
–12V
+
10F
0.1F
CD
CC
C3
0.1F
C4
0.1F
+5V
DGND
R8
2k
+IN
AD7612
ADR435
ADG1209
DGND
ALTERA
EPF6010ATC144-3
8
0
1
10
6
WR
9
4
5
8
3
7
+
–
DGND
2k
DGND
06
98
3-
06
7
Figure 63. Schematic of ADG1209, AD8253, and AD7612 Used with the AD825x in a Total Data Acquisition System
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