Product Overview
The MY DS18B20 series is a digital analog mixed-signal temperature sensor chip designed for high-precision temperature measurement. It offers an accuracy of 0.5 within the -10C to +85C range, eliminating the need for user calibration. Leveraging CMOS semiconductor PN junction temperature characteristics and bandgap voltage, it provides a digital output via a standard single-bus interface. Key advantages include high accuracy, good consistency, low power consumption, flexible programmability, and long lifespan. With a built-in 14-bit ADC and a default 12-bit configuration, it supports a wide operating temperature range and features a unique 64-bit ID for multi-node networking. Applications include industrial monitoring, smart hardware, smart agriculture, instrumentation, and smart home appliances.
Product Attributes
- Brand: MySentech
- Chip Models: MYDS18B20 / MY18E20 / MY1820
- Default Cable Length: 1 meter (customizable)
- Waterproof Rating: IP67
- Stainless Steel Shell Material: 304 Stainless Steel
- Wire Material: 3*0.12mm Oxygen-free Copper
- Insulation Sleeve: 4.0mm Black
Technical Specifications
| Specification | Details |
|---|---|
| Chip Model | MYDS18B20 / MY18E20 / MY1820 |
| Temperature Measurement Accuracy | 0.5 @ -10C to +85C |
| Temperature Conversion Time | 500ms (default), configurable to 15ms |
| Operating Temperature Range (Probe) | -20C to +85C |
| Operating Temperature Range (Chip) | -55C to +125C |
| Operating Voltage Range | 1.8V to 5.5V |
| Communication Interface | Standard Single-Bus (1-Wire) |
| Waterproof Grade | IP67 |
| Default Cable Length | 1 meter |
| Stainless Steel Shell Dimensions | 6.0*50mm or 5.0*50mm |
| Sheath Wire | 3*0.12mm Oxygen-free Copper, outer diameter 3.5mm, 1m length |
| Insulation Sleeve | 4.0mm Black |
| Pin Configuration | 1: GND (Black), 2: DQ (Yellow/Other), 3: VDD (Red) |
| Temperature Sensing Resolution | 12-bit ADC (0.0625C resolution), configurable to 14-bit (0.0125C resolution) |
| Standby Current | 0.2A @ 5V (typical) |
| Average Current | 5A @ 1Hz |
| Extra EEPROM Space | 80-bit for user information |
| Unique ID | 64-bit ID sequence number per chip |
| Maximum Nodes on Bus | Up to 100 nodes |
| Maximum Bus Length | 100 to 500 meters |
| Absolute Maximum Ratings (Any Pin to Ground) | -0.5V to +6.0V |
| Storage Temperature Range | -55C to +125C |
| Non-Volatile Memory Write Cycle | 40 ms (max) |
| EEPROM Write Endurance | 50,000 cycles (-55C to +55C) |
| EEPROM Data Retention | 10 years (-55C to +55C) |
| Slot Length (tSLOT) | 60 - 120 s |
| Reset Low Pulse Width (tRSTL) | 480 - 960 s |
| Presence Detect High Time (tPDHIGH) | 15 - 60 s |
| Presence Detect Low Time (tPDLOW) | 60 - 240 s |
2405081059_Mysentech-DS18B20A10T5_C22392320.pdf
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