參數資料
型號： MAX1237EUA
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： ADC
英文描述： 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
中文描述： 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8
封裝： MICRO MAX PACKAGE-8
文件頁數： 14/22頁
文件大?。?/td> 407K
代理商： MAX1237EUA
M
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
14
______________________________________________________________________________________
BIT 7
(MSB)
REG
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
(LSB)
SGL/
DIF
SCAN1
SCAN0
CS3
CS2
CS1
CS0
BIT
7
6
5
4
3
2
1
NAME
REG
SCAN1
SCAN0
CS3
CS2
CS1
CS0
DESCRIPTION
Register bit 1 = setup byte (see Table 1), 0 = configuration byte.
Scan select bits. Two bits select the scanning configuration (Table 5). Default to 00 at power-up.
Channel select bits. Four bits select which analog input channels are to be used for conversion
(Tables 3 and 4). Default to 0000 at power-up. For MAX1236/MAX1237, CS3 and CS2 are
internally set to 0.
0
SGL/
DIF
1 = single-ended, 0 = differential (Tables 3 and 4). Default to 1 at power-up. See the
Single-
Ended/Differential Input
section.
Table 2. Configuration Byte Format
CS3
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
CS2
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
CS1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
CS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
AIN0
+
AIN1
AIN2
AIN3
2
AIN4
AIN5
AIN6
AIN7
AIN8
AIN9
AIN10 AIN11
2
GND
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
RESERVED
RESERVED
RESERVED
RESERVED
1. For MAX1236/MAX1237, CS3 and CS2 are internally set to 0.
2. When SEL1 = 1, a single-ended read of AIN3/REF (MAX1236/MAX1237) or AIN11/REF (MAX1238/MAX1239) is ignored; scan
stops at AIN2 or AIN10.
Table 3. Channel Selection in Single-Ended Mode (SGL/
DIF
= 1)
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參數描述
MAX1237EUA+ 功能描述:模數轉換器 - ADC 12-Bit 4Ch 94.4ksps 3.6V 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
MAX1237EUA+C2P 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
MAX1237EUA+T 功能描述:模數轉換器 - ADC 12-Bit 4Ch 94.4ksps 3.6V 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
MAX1237EUA-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
MAX1237KEUA 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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