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參數資料
| 型號： | MAX1202 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Scan Test Devices With 18-Bit Bus Transceivers 56-SSOP -40 to 85 |
| 中文描述： | 5V、8通道、串行、12位ADC，3V數字接口 |
| 文件頁數： | 21/24頁 |
| 文件大?。?/td> | 309K |
| 代理商： | MAX1202 |
M
5V, 8-Channel, S erial, 12-Bit ADCs
with 3V Digital Interfac e
______________________________________________________________________________________
21
Figure 16. Bipolar Transfer Function, ±4.096V/2 = Full Scale
Figure 15. Unipolar Transfer Function, 4.096V = Full Scale
(“star” ground point) at GND. Connect all other analog
grounds to this ground. No other digital system ground
should be connected to this single-point analog
ground. The ground return to the power supply for this
ground should be low impedance and as short as pos-
sible for noise-free operation.
High-frequency noise in the power supplies can affect
the ADC’s high-speed comparator. Bypass these sup-
plies to the single-point analog ground with 0.1μF and
4.7μF
bypass
capacitors
MAX1202/MAX1203. Minimize capacitor lead lengths
for best supply-noise rejection. If the +5V power supply
is very noisy, a 10
resistor can be connected as a
lowpass filter, as shown in Figure 18.
close
to
the
OUTPUT CODE
FULL-SCALE
TRANSITION
11 . . . 111
11 . . . 110
11 . . . 101
00 . . . 011
00 . . . 010
00 . . . 001
00 . . . 000
1
2
3
0
FS
FS - 3/2LSB
+4.096V
+ 4.096V
4096
FS =
1LSB =
INPUT VOLTAGE (LSBs)
011 . . . 111
OUTPUT CODE
011 . . . 110
000 . . . 010
000 . . . 001
000 . . . 000
111 . . . 111
111 . . . 110
111 . . . 101
100 . . . 001
100 . . . 000
-FS
0V
INPUT VOLTAGE (LSBs)
+FS - 1LSB
FS = +2.048V
1 4096
+5V
510k
100k
24k
0.01μF
12
REFADJ
MAX1202
Figure 17. MAX1202 Reference-Adjust Circuit
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1202ACAP | 功能描述:模數轉換器 - ADC Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1202ACAP+ | 功能描述:模數轉換器 - ADC 12-Bit 8Ch 133ksps 5V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1202ACAP+T | 功能描述:模數轉換器 - ADC 12-Bit 8Ch 133ksps 5V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1202ACAP-T | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1202ACPP | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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