M117/M117B Series Digital Temperature Sensors
Product Overview
The M117 and M117B series are high-precision digital-analog mixed-signal temperature sensor chips designed for accurate and reliable temperature monitoring. Leveraging CMOS semiconductor PN junction characteristics and bandgap voltage, these chips offer exceptional measurement accuracy of up to 0.1C or 0.5C without user calibration. They feature a wide operating range from -70C to +150C with a 16-bit ADC for a resolution of 0.004C. Key advantages include high accuracy, excellent consistency, fast measurement, low power consumption, flexible programmable configuration, and long lifespan. The chips are factory-calibrated and support I2C communication for data access and configuration. An integrated non-volatile E2PROM stores chip ID, alarm thresholds, calibration data, and user-defined information. An ALERT pin is available for hardware alarm indication. These sensors are ideal for applications requiring precise temperature control and monitoring.
Product Attributes
- Brand: mysentech
- Technology: Digital-Analog Mixed Signal
- Sensing Principle: CMOS Semiconductor PN Junction & Bandgap Voltage
Technical Specifications
| Model | Max Temperature Accuracy | Accuracy Range | I2C Address | Package |
|---|---|---|---|---|
| M117 | 0.1C | +28C to +43C | 0x44 | DFN6L |
| M117B01 | 0.1C | +28C to +43C | 0x45 | DFN6L |
| M117Z | 0.1C | 0C to +50C | 0x44 | DFN6L |
| M117W | 0.1C | +20C to +70C | 0x44 | DFN6L |
| M117P | 0.1C | -20C to +30C | 0x44 | DFN6L |
| M117B | 0.5C | 0C to +50C | 0x45 | DFN6L |
| M117B05 | 0.5C | 0C to +50C | 0x44 | DFN6L |
Key Features
- Maximum Temperature Accuracy: 0.1C / 0.5C
- Temperature Measurement Range: -70C to +150C
- Low Power Consumption: Typical standby current 0.1A, peak measurement current 0.45mA, average measurement current 4.8A (1 measurement/s, high repeatability)
- Wide Operating Voltage Range: 1.8V - 5.5V
- Temperature Resolution: 16-bit output, 0.004C
- Configurable Temperature Conversion Time: 10.5ms / 5.5ms / 4ms
- Configurable Single/Periodic Measurement
- User-Settable Temperature Alarm
- 32-bit Additional E2PROM Space for User Information
- Standard I2C Interface (up to 400kHz)
Applications
- Smart Wearables
- Electronic Thermometers
- Animal Temperature Detection
- Medical Electronics
- Cold Chain Logistics & Warehousing
- Smart Home Devices
- Heat Meters, Gas Meters, Water Meters
- Replacement for PT100/PT1000
- On-board Temperature Monitoring
- Industrial and Agricultural Environment Temperature Sensing
- Smart Appliances
- Consumer Electronics
- Temperature Measurement Instruments
Electrical Specifications
| Parameter | Symbol | Condition | Min | Typical | Max | Unit | Notes |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VDD | 1.8 | 3.3 | 5.5 | V | ||
| Supply Current (Idle, Single Measurement Mode) | IDD | Sensor not measuring in single measurement mode | 0.1 | 1 | uA | ||
| Supply Current (Idle, Periodic Measurement Mode) | IDD | Sensor not sleeping in periodic measurement mode | 55 | uA | |||
| Temperature Measurement Peak Current | 450 | uA | |||||
| Temperature Measurement Average Current | Single mode, high repeatability, 1 measurement/s | 4.8 | uA | ||||
| Power-on Wait Time | tPU | Before entering idle state after power-on | 2 | ms | |||
| Input Logic Low | VIL | SCL, SDA | 0.3*VDD | V | |||
| Input Logic High | VIH | SCL, SDA | 0.7*VDD | V | |||
| Output Low Voltage | VOL | IOL = -3 mA | 0.4 | V | |||
| Input Leakage Current | IIN | -0.1 | 0.1 | uA | |||
| Alarm Output Drive Strength | IOH | VDD=5V | 1 | mA | |||
| Pull-up Resistor | Rup | 1 | 4.7 | 10 | k |
Non-Volatile Memory AC Electrical Characteristics
| Parameter | Symbol | Condition | Min | Typical | Max | Unit |
|---|---|---|---|---|---|---|
| Non-Volatile Memory Write Cycle | tWR | -55C to +125C; VDD=1.8V to 5.5V | 40 | ms | ||
| E2PROM Write Cycles | NEEWR | -55C to +55C | 50000 | Cycles | ||
| E2PROM Data Retention | tEEDR | -55C to +55C | 10 | Years |
Temperature Measurement Performance
| Parameter | Symbol | Condition | Min | Typical | Max | Unit |
|---|---|---|---|---|---|---|
| Temperature Range | -70 | +150 | C | |||
| Temperature Error (M117/M117B01) | tERR | +28C to +43C | 0.1 | C | ||
| Temperature Error (M117/M117B01) | tERR | -10C to +28C & +43C to +60C | 0.5 | C | ||
| Temperature Error (M117Z) | tERR | 0C to +50C | 0.1 | C | ||
| Temperature Error (M117Z) | tERR | -10C to 0C & +50C to +60C | 0.2 | C | ||
| Temperature Error (M117Z) | tERR | -30C to -10C & +60C to +70C | 0.5 | C | ||
| Temperature Error (M117W) | tERR | +20C to +70C | 0.1 | C | ||
| Temperature Error (M117W) | tERR | 0C to +20C & +70C to +75C | 0.2 | C | ||
| Temperature Error (M117W) | tERR | -20C to 0C & +75C to +90C | 0.5 | C | ||
| Temperature Error (M117P) | tERR | -20C to +30C | 0.1 | C | ||
| Temperature Error (M117P) | tERR | -30C to -20C & +30C to +40C | 0.2 | C | ||
| Temperature Error (M117P) | tERR | -70C to -30C & +40C to +70C | 0.5 | C | ||
| Temperature Error (M117B/M117B05) | tERR | 0C to +50C | 0.5 | C | ||
| Temperature Error (Overall) | tERR | -55C to +125C | 1.5 | C | ||
| Temperature Error (Overall) | tERR | -70C to +150C | 2 | C | ||
| Repeatability | Low setting | 0.07 | C | |||
| Repeatability | Medium setting | 0.05 | C | |||
| Repeatability | High setting | 0.03 | C | |||
| Resolution | 0.004 | C | ||||
| Long-term Drift | 0.03 | C/year |
Package Pin Description
| Pin Number | Pin Name | I/O | Description |
|---|---|---|---|
| 1 | SCL | Input/Output | I2C Clock Line |
| 2 | GND | Ground | |
| 3 | ALERT | Output | Alarm Indicator |
| 4 | NC | No Connect (Floating or Grounded) | |
| 5 | VDD | Power Supply | |
| 6 | SDA | Input/Output | I2C Data Line |
| Thermal Pad | NC | No Connect (Floating or Grounded) |
Ordering Information
| Model | Max Accuracy | Accuracy Range | Package | Minimum Packaging |
|---|---|---|---|---|
| M117 | 0.1C | +28C to +43C | DFN4L | 3K/Reel |
| M117B01 | 0.1C | +28C to +43C | DFN4L | 3K/Reel |
| M117Z | 0.1C | 0C to +50C | DFN4L | 3K/Reel |
| M117W | 0.1C | +20C to +70C | DFN4L | 3K/Reel |
| M117P | 0.1C | -20C to +30C | DFN4L | 3K/Reel |
| M117B | 0.5C | 0C to +50C | DFN4L | 3K/Reel |
| M117B05 | 0.5C | 0C to +50C | DFN4L | 3K/Reel |
2108251830_Mysentech-M117B_C2843549.pdf
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