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| Part Number | MAX191BENG+ | MAX191BEWG+ | MAX190BENG+ | MAX191BCNG+ | 
|---|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | 
| Product Status | Active | Active | Active | Active | 
| Number of Bits | 12 | 12 | 12 | 12 | 
| Sampling Rate (Per Second) | 100k | 100k | 76k | 100k | 
| Number of Inputs | 1 | 1 | 1 | 1 | 
| Input Type | Pseudo-Differential | Pseudo-Differential | Pseudo-Differential | Pseudo-Differential | 
| Data Interface | SPI, Parallel | SPI, Parallel | SPI, Parallel | SPI, Parallel | 
| Configuration | S/H-ADC | S/H-ADC | S/H-ADC | S/H-ADC | 
| Ratio - S/H:ADC | 1:1 | 1:1 | 1:1 | 1:1 | 
| Number of A/D Converters | 1 | 1 | 1 | 1 | 
| Architecture | SAR | SAR | SAR | SAR | 
| Reference Type | Internal | Internal | Internal | Internal | 
| Voltage - Supply, Analog | ±5V, 5V | ±5V, 5V | 5V | ±5V, 5V | 
| Voltage - Supply, Digital | 5V | 5V | 5V | 5V | 
| Features | - | - | - | - | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 70°C | 
| Package / Case | 24-DIP (0.300", 7.62mm) | 24-SOIC (0.295", 7.50mm Width) | 24-DIP (0.300", 7.62mm) | 24-DIP (0.300", 7.62mm) | 
| Supplier Device Package | 24-PDIP | 24-SOIC | 24-PDIP | 24-PDIP | 
| Mounting Type | Through Hole | Surface Mount | Through Hole | Through Hole |