Data Sheet

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TSYS01 Digital Temperature Sensor

TSYS01 Rev 11 www.meas-spec.com 2013-03

1/10

High Accuracy Temperature Sensor

16/24 bit Resolution

Low Power

SPI/I2C Interface

• QFN16 Package

DESCRIPTION

The TSYS01 is a single chip, versatile, new technology temperature sensor. The TSYS01

provides factory calibrated temperature information. It includes a temperature sensing chip

and a 24 bit ΔΣ-ADC. The essence of the digital 24 bit temperature value and the internal

factory set calibration values lead to highly accurate temperature information accompanied

by high measurement resolution.

The TSYS01 can be interfaced to any microcontroller by an I

C or SPI interface. This

microcontroller has to calculate the temperature result based on the ADC values and the

calibration parameters.

The basic working principle is:

Converting temperature into digital 16/24 bit ADC value

Providing calibration coefficients

Providing ADC value and calibration coefficients by SPI or I

C interface.

FEATURES APPLICATIONS

High Accuracy ±0.1°C @ Temp.: -5°C … +50°C

Industrial Control

Adjustment of high accuracy temp. range on request

Replacement of Thermistors and NTCs

Low Current, <12.5 μA (standby < 0.14 μA)

Heating / Cooling Systems

SPI / I

C Interface

HVAC

Small Package: QFN16

Operating Temperature Range: -40°C … +125°C

Summary of content (10 pages)

PAGE 1
TSYS01 Digital Temperature Sensor • High Accuracy Temperature Sensor 16/24 bit Resolution Low Power SPI/I2C Interface QFN16 Package DESCRIPTION The TSYS01 is a single chip, versatile, new technology temperature sensor. The TSYS01 provides factory calibrated temperature information. It includes a temperature sensing chip and a 24 bit ΔΣ-ADC.
PAGE 2
TSYS01 Digital Temperature Sensor ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings are limiting values of permitted operation and should never be exceeded under the worst possible conditions either initially or consequently. If exceeded by even the smallest amount, instantaneous catastrophic failure can occur. And even if the device continues to operate satisfactorily, its life may be considerably shortened.
PAGE 3
TSYS01 Digital Temperature Sensor ANALOGUE TO DIGITAL CONVERTER Parameter Output Word Conversion Time Symbol Conditions tc Min 7.40 Typ 24 8.22 Max 9.04 Unit bit ms DIGITAL INPUTS (SCLK, SDI, CSB, PS) Parameter Input High Voltage Input Low Voltage CS low to first SCLK rising CS high to first SCLK rising SDI setup to first SCLK rising SDI hold to first SCLK rising Symbol VIH VIL tCSL tCSH TDSO TDO Conditions VDD = 2.2…3.6V VDD = 2.2…3.6V Min 0.7 VDD 0.0 VDD 21 21 6 6 Typ Max VDD 0.
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TSYS01 Digital Temperature Sensor CONNECTION DIAGRAM PIN FUNCTION TABLE Pin 1 Name VSS Type G 2 CSB DI 3 SCLK/SCL DI 4 SDI/SDA DIO 5 6–9 10 11 12 – 14 15 16 SDO NC A B NC VDD PS DO --I I --P DI TSYS01 Rev 11 Function Ground SPI: Chip Select (active low) 2 I C: Address Selection SPI: Serial Data Clock I2C: Serial Data Clock SPI: Serial Data Input I2C: Data Input / Output SPI: Serial Data Output Not connected / Do not connect Connect Pin10 with Pin11 Connect Pin11 with Pin10 Not connected / D
PAGE 5
TSYS01 Digital Temperature Sensor INTERFACE DESCRIPTION PROTOCOL SELECTION PS pin input level has to be defined in dependence to protocol selection. PS = 0 activates SPI. 2 PS = 1 activates I C. 2 I C INTERFACE 2 A I C communication message starts with a start condition and it is ended by a stop condition. Each command consists of two bytes: the address byte and command byte. 2 I C ADDRESS SELECTION 2 The I C address can be selected by CSB pin. CSB=1 then the address is 1110110x.
PAGE 6
TSYS01 Digital Temperature Sensor RESET SEQUENCE The Reset sequence has to be sent once after power-on. It can be also used to reset the device ROM from an unknown condition. SPI 2 IC PROM READ SEQUENCE The PROM Read command consists of two parts. First command sets up the system into PROM read mode. The second part gets the data from the system. Below examples are sequences to read address 3 (command 0xA6). SPI 2 IC TSYS01 Rev 11 www.meas-spec.
PAGE 7
TSYS01 Digital Temperature Sensor CONVERSION SEQUENCE A conversion has to be started by sending this command. The sensor stays busy until conversion is done. When conversion is finished the data can be accessed by using ADC read command SPI The last clock will start the conversion which TSYS01 indicates by pulling SDO low. SDO goes high when conversion is completed. 2 IC When the command is sent the TSYS01 stays busy until the conversion is done.
PAGE 8
TSYS01 Digital Temperature Sensor TEMPERATURE CALCULATION CALIBRATION PARAMETER Variable k4 k3 k2 k1 k0 Description Coefficient k4 of polynomial Coefficient k3 of polynomial Coefficient k2 of polynomial Coefficient k1 of polynomial Coefficient k0 of polynomial Command 0xA2 0xA4 0xA6 0xA8 0xAA Size / bit 16 16 16 16 16 Min 0 0 0 0 0 Max 65535 65535 65535 65535 65535 Example 28446 24926 36016 32791 40781 TEMPERATURE POLYNOMAL ADC24: ADC16: ADC value ADC24 / 256 T / °C = (-2) 4 (-2) 1 (-1.
PAGE 9
TSYS01 Digital Temperature Sensor DIMENSIONS TOP VIEW SIDE VIEW BOTTOM VIEW MARKING Line 1 2 3 TSYS01 Rev 11 Description Manufacturer Product Name Pin 1 Dot, Date Code YYWW Example MEAS TSYS01 1141 www.meas-spec.
PAGE 10
TSYS01 Digital Temperature Sensor ORDER INFORMATION Please order this product using following: Part Number G-NICO-018 Part Description TSYS01 Digital Temperature Sensor EMC Due to the use of these modules for OEM application no CE declaration is done. Especially line coupled disturbances like surge, burst, HF etc. cannot be removed by the module due to the small board area and low price feature. There is no protection circuit against reverse polarity or over voltage implemented.