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Digital temperature sensor chip Mysentech M1820B with calibration and programmable alarm thresholds

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Digital temperature sensor chip Mysentech M1820B with calibration and programmable alarm thresholds

Temperature Range : -70℃~+150℃

standby current : 100nA

Interface : Single-bus

Voltage - Supply : 1.8V~5.5V

Description : Temperature Sensor -70℃~+150℃ TO-92S

Mfr. Part # : M1820B

Model Number : M1820B

Package : TO-92S

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M601B, M1601B, M1820B Series Digital Temperature Sensor Chips

Product Overview
The M601B, M1601B, and M1820B series are digital-analog mixed-signal temperature sensor chips from Mysentech. These chips offer high measurement accuracy up to 0.5C without requiring user calibration. Leveraging CMOS semiconductor PN junction temperature and bandgap voltage characteristics, they provide high precision, good consistency, fast temperature sensing, low power consumption, flexible programmable configuration, and long lifespan. With a built-in 16-bit ADC, they achieve a resolution of 0.004C and operate across an ultra-wide temperature range of -70C to +150C. Each chip features a unique 64-bit ID serial number, factory tested and calibrated. The single-bus digital interface simplifies system integration, requiring only one GPIO port for communication with a host microcontroller. This enables cost-effective, distributed sensing networks supporting up to 100 nodes over distances of 100 to 500 meters. Integrated non-volatile E2PROM stores chip ID, alarm thresholds, calibration coefficients, and user-defined information. The M601B model includes an ALERT pin for hardware alarm indication.

Applications:

Board-level temperature monitoring
Industrial and agricultural environment temperature sensing
Smart home appliances
Smart home systems
Consumer electronics
Cold chain transportation and storage
Temperature measurement instruments
Multi-point series temperature sensing

Product Attributes

Brand: Mysentech
Interface: 1-Wire Digital Bus

Technical Specifications

Model	Max Temperature Accuracy	Accuracy Range	Package	Dimensions	Typical Standby Current	Temperature Measurement Peak Current	Temperature Measurement Average Current	Operating Voltage Range	Sensing Resolution	Temperature Conversion Time	Temperature Range
M601B	0.5C	0C to +50C	DFN8	220.55mm	0.1A	0.45mA	4.8A (1 measurement/s)	1.8V-5.5V	0.004C (16-bit)	Configurable (10.5ms/5.5ms/4ms)	-70C to +150C
M1601B	0.5C	0C to +50C	SOT23-3	2.92.81.1mm	0.1A	0.45mA	4.8A (1 measurement/s)	1.8V-5.5V	0.004C (16-bit)	Configurable (10.5ms/5.5ms/4ms)	-70C to +150C
M1820B	0.5C	0C to +50C	TO92S	-	0.1A	0.45mA	4.8A (1 measurement/s)	1.8V-5.5V	0.004C (16-bit)	Configurable (10.5ms/5.5ms/4ms)	-70C to +150C

Parameter	Condition	Min	Typical	Max	Unit	Notes
Temperature Error (tERR)	0C to +50C		0.5		C
Temperature Error (tERR)	-55C to +125C		1.5		C
Temperature Error (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	16-bit output
Long-term Drift				0.03	C/year
Supply Voltage (VDD)		1.8	3.3	5.5	V
Idle State Current (IDD)	Single Measurement Mode		0.1	1	uA	When not measuring
Idle State Current (IDD)	Periodic Measurement Mode		55		uA	When not in sleep
Temperature Measurement Peak Current			450		uA
Temperature Measurement Average Current			4.8		uA	Single mode, high repeatability, 1 meas/s
Non-volatile Write Cycle Time (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

2202132030_Mysentech-M1820B_C2843540.pdf

Quality Digital temperature sensor chip Mysentech M1820B with calibration and programmable alarm thresholds for sale

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