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| Part Number | ADM1021ARQ | ADM1023ARQ | ADM1029ARQ | ADM1028ARQ | ADM1027ARQ | ADM1031ARQ | ADM1021ARQZ | ADM1021AARQ |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | onsemi | Analog Devices Inc. |
| Product Status | Active | Active | Active | Active | Active | Active | Obsolete | Active |
| Function | Temp Monitoring System (Sensor) | Temp Monitoring System (Sensor) | Fan Control, Temp Monitor | Fan Control, Temp Monitor | Fan Control, Temp Monitor | Fan Control, Temp Monitor | Temp Monitoring System (Sensor) | Temp Monitoring System (Sensor) |
| Sensor Type | Internal and External | Internal and External | Internal and External | Internal and External | Internal and External | Internal and External | Internal and External | Internal and External |
| Sensing Temperature | 0°C ~ 100°C, External Sensor | 0°C ~ 120°C, External Sensor | 0°C ~ 100°C, External Sensor | 0°C ~ 100°C, External Sensor | 0°C ~ 105°C, External Sensor | 0°C ~ 100°C, External Sensor | 0°C ~ 100°C, External Sensor | 0°C ~ 100°C, External Sensor |
| Accuracy | ±1°C Local, ±5°C Remote | ±1°C Local, ±3°C Remote | ±1°C Local, ±3°C Remote | - | ±1°C | ±1°C Local, ±0.5°C Remote | ±1°C Local, ±5°C Remote | ±1°C Local, ±5°C Remote |
| Topology | ADC, Comparator, Multiplexer, Register Bank | ADC, Comparator, Multiplexer, Register Bank | ADC, Fan Control, Multiplexer, Register Bank | ADC, Register Bank | ADC, Comparator, Fan Speed Counter, Multiplexer, Register Bank | ADC, Comparator, Multiplexer, Register Bank | ADC, Comparator, Multiplexer, Register Bank | ADC, Comparator, Multiplexer, Register Bank |
| Output Type | SMBus | SMBus | Open Drain | SMBus | SMBus | SMBus | SMBus | SMBus |
| Output Alarm | Yes | Yes | Yes | No | No | Yes | Yes | Yes |
| Output Fan | No | No | Yes | Yes | Yes | Yes | No | No |
| Voltage - Supply | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V |
| Operating Temperature | 0°C ~ 100°C | 0°C ~ 120°C | 0°C ~ 100°C | 0°C ~ 100°C | 0°C ~ 105°C | 0°C ~ 100°C | 0°C ~ 100°C | 0°C ~ 100°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 16-SSOP (0.154", 3.90mm Width) | 16-SSOP (0.154", 3.90mm Width) | 24-SSOP (0.154", 3.90mm Width) | 16-SSOP (0.154", 3.90mm Width) | 24-SSOP (0.154", 3.90mm Width) | 16-SSOP (0.154", 3.90mm Width) | 16-SSOP (0.154", 3.90mm Width) | 16-SSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 16-QSOP | 16-QSOP | 24-QSOP | 16-QSOP | 24-QSOP | 16-QSOP | 16-QSOP | 16-QSOP |
