TSYS02D Digital Temperature Sensor
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High Accuracy Temperature Sensor
16 bit Resolution
High Speed, low Response Time
Low Power Consumption
I2C Interface
Small TDFN8 Package
DESCRIPTION
The TSYS02D is a single chip, temperature sensor.
It provides factory calibrated data corresponding to the measured temperature.
The data is provided via I2C interface.
The temperature range is -40°C ... +125°C while the resolution is 0.01°C.
The TSYS02D can be interfaced to any microcontroller by an I2C interface.
The TDFN8 package provides smallest size and very fast time response.
FEATURES APPLICATIONS
High Accuracy ±0.2°C @ Temp.: -5°C … +50°C
Industrial Control
Adjustment of high accuracy temperature range on request
Replacement of Precision RTDs,
Thermistors and NTCs
Low Supply Current < 420μA (standby < 0.14μA)
Heating / Cooling Systems
I2C Interface up to 400kHz
HVAC
Small IC-Package TDFN8 2.5mm x 2.5mm
Operating Temperature Range: -40°C … +125°C
TSYS02D Digital Temperature Sensor
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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.
Parameter
Symbol
Conditions
Min
Max
Unit
Supply Voltage
VDD
-0.3
+3.6
V
Operating Temperature
Top
-40
+125
°C
Storage temperature
Tstor
-55
+150
°C
ESD rating
ESD
Human Body Model (HBM)
pin to pin incl. VDD & GND
-2
+2
kV
Humidity
Hum
Non condensing
OPERATING CONDITIONS
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Operating Supply Voltage
VDD
stabilized
1.5
3.6
V
Supply Current
IDD
1 sample per second
18
µA
Standby current
IS
No conversion, VDD = 3V
T = 25°C
T = 85°C
0.02
0.70
0.14
1.40
µA
µA
Peak Supply Current
IDD
During conversion
420
µA
Conversion time
TCONV
43
ms
Serial Data Clock I2C
FSCL
400
kHz
VDD Capacitor
Place close to the chip
100nF
OPERATIONAL CHARACTERISTICS
If not otherwise noted, 3.3V supply voltage is applied.
Parameter
Symbol
Conditions
Min
Typ
Unit
Temp. Measurement Range
TRANG
-40
°C
Accuracy 1
TACC1
-5°C < T < +50°C
VDD = 3.2V – 3.4V
-0.2
°C
Accuracy 2
TACC2
-20°C < T < +100°C
VDD = 3.2V – 3.4V
-0.5
°C
Accuracy 3
TACC2
-40°C < T < +125°C
VDD = 3.2V – 3.4V
-1.0
°C
PSRR
Power Supply Reject Ratio
VDD = 2.7 – 3.6
T = 25°C, C = 100nF
°C
Temperature Resolution
TRES
°C
Self Heating
SH1
10 samples/s, 60s, still air
°C
TSYS02D Digital Temperature Sensor
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ACCURACY
ANALOGUE TO DIGITAL CONVERTER
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Resolution
16
bit
Conversion Time
tc
43
ms
DIGITAL INPUTS (SCLK, SDA)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Input High Voltage
VIH
VDD = 1.5…3.6V
0.7 VDD
VDD
V
Input Low Voltage
VIL
VDD = 1.5…3.6V
0.0 VDD
0.3 VDD
V
Input leakage Current
Ileak_25
Ileak_85
T = 25°C
T = 85°C
0.01
0.25
0.14
1.40
µA
Input Capacitance
CIN
6
pF
DIGITAL OUTPUTS (SDA)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Output High Voltage
VOH
ISource = 1mA
0.8 VDD
VDD
V
Output Low Voltage
VOL
ISink = 1mA
0.0 VDD
0.2 VDD
V
TSYS02D Digital Temperature Sensor
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CONNECTION DIAGRAM
PIN FUNCTION TABLE
Pin
Name
Type
Function
1
VDD
Power
Supply Voltage
2
SCL
Digital Input
I2C: Serial Data Clock
3
SDA
Digital Input/Output
I2C Data Input / Output
4
VSS
Power
Ground
5 – 8
NC
---
Not connected / Do not connect
INTERFACE DESCRIPTION
I2C INTERFACE
An I2C 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.
I2C ADDRESS
The I2C address is 0b1000000x.
COMMANDS
There are four commands:
Reset
Read PROM (serial number)
Read ADC16 Temperature Data (with SCL hold)
Read ADC16 Temperature Data (without SCL hold)
Command
Hex Value
Reset
0x7E
Read ADC16 Temperature Data (with SCL hold)
0x E3
Read ADC16 Temperature Data (without SCL hold)
0x F3
Read first 8 bytes of Serial Number
0x FA0F
Read last 6 bytes of Serial Number
0x FCC9
TSYS02D
VDD
+3.3V
VDD
+3.3V
TSYS02D Digital Temperature Sensor
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RESET SEQUENCE
The reset of TSYS02D can be sent at any time. When SDA line is blocked by an undefined state the
only way to get the TSYS02D to work is to send a power on reset or several SCL cycles. This is not
needed when the last command was not a conversion.
CONVERSION AND ADC READ
A conversion can be started by sending this command to TSYS02D. When the command is sent to the
sensor it stays busy until conversion is done. All other commands except the reset command will not be
executed during this time. When conversion is finished the data can be accessed by sending a Read
command. If an acknowledge appears from the TSYS02D, you may then send 24 SCLK cycles to get all
result bits. Every 9th bit the system waits for acknowledge. If the acknowledge is not sent the data
clocking out of the chip stops. Two types of conversion commands for temperature reading are possible.
If the “hold” command is issued, the SCL is held low during conversion, indicating when the conversion
is finished. If the “no hold” is issued, the SCL line is not controlled by the TSYS02D.
WITH HOLD
WITHOUT HOLD
TSYS02D Digital Temperature Sensor
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READ SERIAL NUMBER FIRST 8 BYTES
READ SERIAL NUMBER LAST 6 BYTES
TEMPERATURE CALCULATION
TEMPERATURE POLYNOMAL
ADC16: ADC Result 16 bits
T / °C = ADC16 / 216 x 175.72 – 46.85
EXAMPLE
ADC16: 36636
T / °C = 36636 / 216 x 175.72 – 46.85
T / °C = 51.38°C
TSYS02D Digital Temperature Sensor
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DIMENSIONS
TOP VIEW
BOTTOM VIEW
SIDE VIEW
MARKING
Line
Description
Example
1
Product Name
TSY2
2
Pin 1 Dot, Date Code YYWW
1244
TSYS02D Digital Temperature Sensor
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ORDER INFORMATION
The TSYS02 temperature sensor family compromises currently three different solutions.
Further customer specific adaptations are available on request.
Please refer to the table below for part name, description and order information.
Part Name
Description
Order Number
TSYS02D
Digital Temperature Sensor, TDFN8, I2C Interface
G-NIMO-003
TSYS02P
Digital Temperature Sensor, TDFN8, PWM Interface
G-NIMO-004
TSYS02S
Digital Temperature Sensor, TDFN8, SDM Interface
G-NIMO-005
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. The module
will be designed using capacitors for blocking and ground plane areas in order to prevent wireless coupled
disturbances as good as possible.
DEFINITIONS AND DISCLAIMERS
Application information – Applications that are described herein for any of these products are for
illustrative purpose only. MEAS Deutschland GmbH makes no representation or warranty that such
applications will be suitable for the specified use without further testing or modification.
Life support applications – These products are not designed for use in life support appliances,
devices, or systems where malfunctions of these products can reasonably be expected to result in
personal injury. MEAS Deutschland GmbH customers using or selling this product for use in such
applications do so at their own risk and agree to fully indemnify MEAS Deutschland GmbH for any
damages resulting from such improper use or sale.
TECHNICAL CONTACT INFORMATION
NORTH AMERICA
Measurement Specialties, Inc.
910 Turnpike Road
Shrewsbury, MA 01545
Tel: 1-508-842-0516
Fax: 1-508-842-0342
Sales email:
temperature.sales.amer@meas-
spec.com
EUROPE
MEAS Deutschland GmbH
Hauert 13
44277 Dortmund
Tel: +49 (0) 231/9740-0
Fax: +49 (0) 231/9740-20
Sales email:
info.de@meas-spec.com
ASIA
Measurement Specialties (China) Ltd.
No. 26 Langshan Road
Shenzhen High-Tech Park (North)
Nanshan District, Shenzhen 518057,
China
Tel: +86 (0) 755 33305088
Fax: +86 (0) 755 33305099
Sales email:
temperature.sales.asia@meas-spec.com
The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore,
this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc.
reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee
regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use
of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can
and do vary in different applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement
Specialties, Inc. does not convey any license under its patent rights nor the rights of others.