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| Part Number | MAX1231ACEG+ | MAX1231BCEG+ | MAX1231AEEG+ | MAX1231ACEG+T | MAX1230ACEG+ | 
|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | 
| Product Status | Obsolete | Active | Obsolete | Obsolete | Obsolete | 
| Number of Bits | 12 | 12 | 12 | 12 | 12 | 
| Sampling Rate (Per Second) | 300k | 300k | 300k | 300k | 300k | 
| Number of Inputs | 8, 16 | 8, 16 | 8, 16 | 8, 16 | 8, 16 | 
| Input Type | Differential, Single Ended | Differential, Single Ended | Differential, Single Ended | Differential, Single Ended | Differential, Single Ended | 
| Data Interface | SPI | SPI | SPI | SPI | SPI | 
| Configuration | S/H-ADC | S/H-ADC | S/H-ADC | S/H-ADC | MUX-S/H-ADC | 
| Ratio - S/H:ADC | 1:1 | 1:1 | 1:1 | 1:1 | 1:1 | 
| Number of A/D Converters | 1 | 1 | 1 | 1 | 1 | 
| Architecture | SAR | SAR | SAR | SAR | SAR | 
| Reference Type | External, Internal | External, Internal | External, Internal | External, Internal | External, Internal | 
| Voltage - Supply, Analog | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 5V | 
| Voltage - Supply, Digital | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 5V | 
| Features | Temperature Sensor | Temperature Sensor | Temperature Sensor | Temperature Sensor | Temperature Sensor | 
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 
| Package / Case | 24-SSOP (0.154", 3.90mm Width) | 24-SSOP (0.154", 3.90mm Width) | 24-SSOP (0.154", 3.90mm Width) | 24-SSOP (0.154", 3.90mm Width) | 24-SSOP (0.154", 3.90mm Width) | 
| Supplier Device Package | 24-QSOP | 24-QSOP | 24-QSOP | 24-QSOP | 24-QSOP | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |