MICROCHIP MCP9801 M SN Digital Temperature Sensor Offering Accurate 12 bit Resolution and Low Current
Product Overview
The MCP9800/1/2/3 family of digital temperature sensors from Microchip Technology Inc. offers precise temperature monitoring with a 12-bit resolution and accuracy up to 0.5C (typical at +25C). These sensors convert temperatures between -55C and +125C into a digital word, featuring user-selectable resolution from 9-12 bits. They operate on a wide voltage range (2.7V to 5.5V) and utilize a 2-wire I2C/SMBus compatible interface. With low operating current (200 A typical) and power-saving modes like Shutdown and One-shot, they are ideal for various applications including personal computers, servers, entertainment systems, and mobile phones, particularly for sophisticated multi-zone temperature monitoring.
Product Attributes
- Brand: Microchip Technology Inc.
- Origin: Not specified
- Material: Not specified
- Color: Not specified
- Certifications: Not specified
Technical Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions |
| General Specifications | ||||||
| Temperature Range | TA | -55 | +125 | C | Specified Temperature Range (Note 1) | |
| Operating Voltage Range | VDD | 2.7 | 5.5 | V | ||
| Operating Current | IDD | 200 | 400 | A | Continuous Operation | |
| Shutdown Current | ISHDN | 0.1 | 1 | A | Shutdown mode | |
| Accuracy with 12-bit Resolution | ||||||
| @ +25C | TACY | 0.5 | C | VDD = 3.3V | ||
| -10C to +85C | TACY | -1.0 | +1.0 | C | VDD = 3.3V | |
| -10C to +125C | TACY | -2.0 | +2.0 | C | VDD = 3.3V | |
| -55C to +125C | TACY | -3.0 | +3.0 | C | VDD = 3.3V | |
| Conversion Time | ||||||
| 9-bit Resolution | tCONV | 30 | 75 | ms | 33 samples/sec (typical) | |
| 10-bit Resolution | tCONV | 60 | 150 | ms | 17 samples/sec (typical) | |
| 11-bit Resolution | tCONV | 120 | 300 | ms | 8 samples/sec (typical) | |
| 12-bit Resolution | tCONV | 240 | 600 | ms | 4 samples/sec (typical) | |
| Interface Specifications (I2C/SMBus Compatible) | ||||||
| Serial Port Frequency | fSC | 0 | 400 | kHz | I2C MCP9800/01 | |
| Serial Port Frequency | fSC | 10 | 400 | kHz | SMBus MCP9802/03 | |
| Clock Period | tSC | 2.5 | s | |||
| Low Clock | tLOW | 1.3 | s | |||
| High Clock | tHIGH | 0.6 | s | |||
| Rise Time | tR | 20 | 300 | ns | 10% to 90% of VDD (SCLK, SDA) | |
| Fall Time | tF | 20 | 300 | ns | 90% to 10% of VDD (SCLK, SDA) | |
| Data Setup Before SCLK High | tSU-DATA | 0.1 | s | |||
| Data Hold After SCLK Low | tH-DATA | 0 | 0.9 | s | ||
| Start Condition Setup Time | tSU-START | 0.6 | s | |||
| Start Condition Hold Time | tH-START | 0.6 | s | |||
| Stop Condition Setup Time | tSU-STOP | 0.6 | s | |||
| Bus Idle | tIDLE | 1.3 | s | |||
| Time Out (MCP9802/03 only) | tOUT | 25 | 35 | 50 | ms | |
| Package Thermal Resistance | ||||||
| 5L-SOT23 | JA | 256 | C/W | |||
| 8L-SOIC | JA | 163 | C/W | |||
| 8L-MSOP | JA | 206 | C/W | |||
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.