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| Part Number | MAX1291AEEI | MAX1291BEEI | MAX1294AEEI | MAX1295AEEI | MAX1291AEEI+ | MAX1290AEEI | MAX1291ACEI |
|---|---|---|---|---|---|---|---|
| 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 | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Active | Obsolete | Obsolete |
| Number of Bits | 12 | 12 | 12 | 12 | - | 12 | 12 |
| Sampling Rate (Per Second) | 250k | 250k | 420k | 265k | - | 400k | 250k |
| Number of Inputs | 4, 8 | 4, 8 | 3, 6 | 3, 6 | - | 4, 8 | 4, 8 |
| Input Type | Pseudo-Differential, Single Ended | Pseudo-Differential, Single Ended | Pseudo-Differential, Single Ended | Pseudo-Differential, Single Ended | - | Pseudo-Differential, Single Ended | Pseudo-Differential, Single Ended |
| Data Interface | Parallel | Parallel | Parallel | Parallel | - | Parallel | Parallel |
| Configuration | MUX-S/H-ADC | MUX-S/H-ADC | MUX-S/H-ADC | MUX-S/H-ADC | - | MUX-S/H-ADC | MUX-S/H-ADC |
| Ratio - S/H:ADC | 1:1 | 1:1 | 1:1 | 1:1 | - | 1:1 | 1:1 |
| Number of A/D Converters | 1 | 1 | 1 | 1 | - | 1 | 1 |
| Architecture | SAR | SAR | SAR | SAR | - | SAR | SAR |
| Reference Type | External, Internal | External, Internal | External, Internal | External, Internal | - | External, Internal | External, Internal |
| Voltage - Supply, Analog | 2.7V ~ 3.6V | 2.7V ~ 3.6V | 5V | 2.7V ~ 3.6V | - | 5V | 2.7V ~ 3.6V |
| Voltage - Supply, Digital | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 5V | 2.7V ~ 3.6V | - | 2.7V ~ 5.5V | 1.8V ~ 3.6V |
| Features | - | - | - | - | - | - | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | - | -40°C ~ 85°C | 0°C ~ 70°C |
| Package / Case | 28-SSOP (0.154", 3.90mm Width) | 28-SSOP (0.154", 3.90mm Width) | 28-SSOP (0.154", 3.90mm Width) | 28-SSOP (0.154", 3.90mm Width) | - | 28-SSOP (0.154", 3.90mm Width) | 28-SSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 28-QSOP | 28-QSOP | 28-QSOP | 28-QSOP | - | 28-QSOP | 28-QSOP |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | - | Surface Mount | Surface Mount |
