MAX1238EVKIT Maxim Integrated Products, MAX1238EVKIT Datasheet - Page 14

• Manufacturer Part Number: MAX1238EVKIT
• Description: EVAL KIT FOR MAX1238
• Manufacturer: Maxim Integrated Products

Specifications of MAX1238EVKIT

• Number Of Adc's: 1
• Number Of Bits: 12
• Sampling Rate (per Second): 94k
• Data Interface: Serial
• Inputs Per Adc: 12 Single Ended or 6 Differential
• Input Range: ±VREF/2
• Power (typ) @ Conditions: 3.35mW @ 94kSPS
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Utilized Ic / Part: MAX1238
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
Table 2. Configuration Byte Format
Table 3. Channel Selection in Single-Ended Mode (SGL/DIF = 1)
1. For MAX1236/MAX1237, CS3 and CS2 are internally set to 0.
14
2. When SEL1 = 1, a single-ended read of AIN3/REF (MAX1236/MAX1237) or AIN11/REF (MAX1238/MAX1239) is ignored; scan
CS3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
stops at AIN2 or AIN10.
(MSB)
______________________________________________________________________________________
1
BIT 7
REG
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). 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.
1 = single-ended, 0 = differential (Tables 3 and 4). Default 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
-
-
-
-
-
-
-
-
-
-
-
-