MAX1137EUA-T Maxim Integrated, MAX1137EUA-T Datasheet - Page 14

• Manufacturer Part Number: MAX1137EUA-T
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1137EUA-T

• Number Of Channels: 4/2
• Architecture: SAR
• Conversion Rate: 94.4 KSPs
• Resolution: 10 bit
• Input Type: Single-Ended/Differential
• Snr: Yes
• Interface Type: I2C
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: uMAX
• Maximum Power Dissipation: 362 mW
• Minimum Operating Temperature: - 40 C
• Number Of Converters: 1
• Voltage Reference: Internal 4.096 V

2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial 10-Bit ADCs
Table 2. Configuration Byte Format
Table 3. Channel Selection in Single-Ended Mode (SGL/DIF = 1)
1. For MAX1136/MAX1137, CS3 and CS2 are internally set to 0.
2. When SEL1 = 1, a single-ended read of AIN3/REF (MAX1136/MAX1137) or AIN11/REF (MAX1138/MAX1139) will be ignored; scan
14
CS3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
will stop at AIN2 or AIN10.
(MSB)
BIT 7
REG
1
______________________________________________________________________________________
BIT
7
6
5
4
3
2
1
0
CS2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
1
CS1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
SGL/DIF
SCAN1
SCAN1
SCAN0
NAME
BIT 6
REG
CS3
CS2
CS1
CS0
CS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
AIN0
+
Register bit 1= setup byte (see Table 1), 0 = configuration byte
Scan select bits. Two bits select the scanning configuration
(Table 5). Defaulted 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). Defaulted to 0000 at power-up. For MAX1136/MAX1137, CS3 and CS2 are
internally set to 0.
1 = single-ended, 0 = differential (Tables 3 and 4). Defaulted to 1 at power-up. See the Single-
Ended/Differential Input section.
SCAN0
BIT 5
AIN1
+
AIN2
+
BIT 4
AIN3
CS3
+
2
AIN4
+
AIN5
BIT 3
CS2
+
DESCRIPTION
RESERVED
RESERVED
RESERVED
RESERVED
AIN6
+
AIN7
BIT 2
CS1
+
AIN8
+
AIN9 AIN10 AIN11
+
BIT 1
CS0
+
SGL/DIF
+
(LSB)
BIT 0
2
GND
-
-
-
-
-
-
-
-
-
-
-
-