PDF

AS6200
Temperature Sensor
General Description
The AS6200 IC is a high accuracy temperature sensor system
that communicates via a 2 wire digital bus with other devices.
It consists of a Si bandgap temperature sensor, an ADC and a
digital signal processor.
It has a very high temperature accuracy (±0.4°C for AS6200) and
an ultra-low power consumption (low operation and quiescent
current) which makes it ideally suited for mobile/battery
powered applications.
The AS6200 is an easy to integrate and use solution, featuring
an factory calibrated sensor, integrated linearization and the
possibility to use 2 different I²C addresses, enabling to use two
AS6200 devices on one bus.
Additionally the AS6200 temperature sensor system also
features an alert functionality, which triggers e.g. an interrupt
to protect devices from excessive temperatures.
Ordering Information and Content Guide appear at end of
datasheet.
Key Benefits & Features
The benefits and features of AS6200, Temperature Sensor are
listed below:
Figure 1:
Added Value of Using AS6200
Benefits
Features
• High Measurement Accuracy
• ± 0.4°C (0°C to 65°C)
• ± 1°C (-40°C to 125°C)
(max. values)
• Low Power Consumption
• 6 μA @Operation (typ. @ 4 Hz)
• 0.1 μ[email protected] (typ.)
• Supply Voltage Range
• 1.8V to 3.6 V
• Wide Operating Temperature
• -40°C to 125°C
• Small PCB Footprint
• 1.6 mm x 1.0 mm (WLCSP)
ams Datasheet
[v1-01] 2016-Jun-17
Page 1
Document Feedback
AS6200 − General Description
Applications
• HVAC and thermostat controls
• Medical instrumentation
• Body temperature measurement
• Mobile devices
• Thermal monitoring for smartphones, tablets and
cameras
• Smart watches and wearables
• Industrial
• Industrial automation
• Cold chain monitoring
Figure 2:
Typical Application Environment of the AS6200 Temperature Sensor
VDD
RPU
Serial
Interface
Pull-up resistors
SDA
VDD
Interrupt
10nF
VDD
ADD0
AS6200
Microcontroller
(Bus Master)
Slave
SCL
VSS
ALERT
Address Select
In Figure 2 a typical application of the AS6200 is shown. It is
connected via a serial bus (I²C) with a microcontroller.
The sensor system is also connected to the microcontroller via
the “Alert” pin which can be used to trigger events in case the
temperature exceeds defined limits.
Page 2
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − General Description
Block Diagram
The functional blocks of this device are shown below:
Figure 3:
Functional Blocks of the AS6200
AS6200
Temperature
Sensor Analog
Frontend
A/D Converter
Alarm
Digital Signal
Processing
Registers
Control Logic
I2C Interface
ADD0
VDD
SCL
Oscillator
VSS
SDA
In Figure 3 all relevant blocks of the AS6200 temperature sensor
are shown. The sensing element is a Si bipolar transistor.
The analog signal is transformed by the A/D converter in a
digital signal which is processed by the DSP and written into
the registers.
The data in the register can be accessed by the serial bus (I²C).
ams Datasheet
[v1-01] 2016-Jun-17
Page 3
Document Feedback
AS6200 − Pin Assignments
Pin Assignments
Figure 4:
Pin Assignment WLCSP (Top View)
Columns
2
1
A1
A2
A3
ALERT
VSS
SCL
Rows
A
3
B
B1
B2
B3
ADD0
VDD
SDA
Top View
In Figure 4 the pin assignment of the WLCSP package is shown.
A1 pin assignment is shown via a marking on the package (top
side).
Figure 5:
Pin Description
Pin number
(WLCSP)
Pin Name
A1
ALERT
A2
VSS
Ground Pin
A3
SCL
Serial Interface Clock
B1
ADD0
Address Select Pin
B2
VDD
Positive Supply Voltage
B3
SDA
Serial Interface Data
Description
Alert Output (interrupt)
In Figure 5 the pins of the device are described. For the pins
“Alert”, “SDA” and “SCL” external pull up resistors are necessary.
The pin ADD0 needs to be connected and cannot be left
unconnected (please refer to the bus address sections for more
information).
Page 4
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Absolute Maximum Ratings
Absolute Maximum Ratings
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. These are stress
ratings only. Functional operation of the device at these or any
other conditions beyond those indicated under Operating
Conditions is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device
reliability.
Figure 6:
Absolute Maximum Ratings
Symbol
Parameter
Min
Max
Units
Comments
Electrical Parameters
VDD /VSS
ISCR
Supply Voltage to
Ground
-0.3
4
V
Input Current (latch-up
immunity)
-100
100
mA
JEDEC JESD78D
Electrostatic Discharge
ESDHBM
Electrostatic Discharge
HBM
±2
kV
MIL-STD-833J-3015.9
Temperature Ranges and Storage Conditions
TA
Operating Temperature
TJ
Junction Temperature
TSTRG
Storage Temperature
Range
TBODY
Package Body
Temperature
RHNC
Relative Humidity
non-condensing
MSL
Moisture Sensitivity
Level
ams Datasheet
[v1-01] 2016-Jun-17
-40
-55
5
1
125
°C
150
°C
150
°C
260
°C
85
%
IPC/JEDEC J-STD-020
The reflow peak soldering
temperature (body temperature) is
specified according to IPC/JEDEC
J-STD-020 “Moisture/Reflow
Sensitivity Classification for
Non-hermetic Solid State Surface
Mount Devices.”
Maximum floor life time is unlimited
Page 5
Document Feedback
AS6200 − Electrical Characteristics
Electrical Characteristics
Operating Conditions
Figure 7:
Operating Conditions
Symbol
VDD
T_AMB
Parameter
Min
Typ
Max
Units
DC supply voltage
1.8
3.0
3.6
V
Ambient temperate
-40
125
°C
Note
Reference to VSS
Analog System Parameters
Figure 8:
Analog System Parameters
Symbol
VDD
T
Parameter
Min
Typ
Max
Unit
Supply voltage
1.8
2.0
3.0
3.0
3.6
3.6
V
Temperature range
-40
125
°C
0.1
0.3
0.4
9.0
μA
T= -40°C to 65°C
T= 65°C to 125°C
6
7
16
μA
T = -40°C to 65°C
Serial bus inactive
T = 65°C to 125°C
Serial bus inactive
0.4
1
°C
T = 0°C to 65°C
T = -40°C to 125°C
IDD
Standby consumption
IDD
Current consumption
(4 conversions/s)
T_ERR
Accuracy (1)
N
Resolution
TS
Conversion time
NS
Conversion rate
-0.4
-1
12
24
Bits
32
40
0.25
1
4
8
0.35
1.35
5.5
10.7
Note
T = 0°C to 150°C
T = -40°C to 150°C
Normal mode
(TMAX=128°C)
ms
Conv/s
CR[1:0]=00
CR[1:0]=01
CR[1:0]=10
CR[1:0]=11
Note(s):
1. The accuracy is based on measurements and reflects 4,5 σ statistics.
Page 6
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Detailed Descriptions
Detailed Descriptions
The AS6200 is a complete sensor system that has an integrated
temperature sensing element, the analog frontend, the A/D
converter and the digital signal processing part.
The digital signal processing part consists of the signal
processor, the registers and the serial bus interface.
For block diagram please refer to Figure 3.
In Figure 8 an overview of the analog system parameters is
given.
The current consumption with fewer conversions per second is
lower than the values mentioned in Figure 8.
Digital System Parameters
The device contains the following data registers as depicted in
the following figure:
Figure 9:
Register Map with Serial Interface
0x0
0x1
0x2
0x3
TVAL (Read Only)
CONFIG (Read/Write)
SCLK
TLOW (Read/Write)
Serial Interface
SDA
THIGH (Read/Write)
INDEX (Read/Write)
With the use of the index register, it is possible to address the
specific data register. The index register is an 8 bit register,
where only bits 0 and 1 are used as shown in Figure 10 and all
other bits are set to 0 and read only.
Figure 10:
Index Register
Bit
D7
D6
D5
D4
D3
D2
Value
0
0
0
0
0
0
ams Datasheet
[v1-01] 2016-Jun-17
D1
D0
Address Bits
Page 7
Document Feedback
AS6200 − Detailed Descriptions
The two bit address selects the register to be accessed by the
serial interface as shown in the following table.
Figure 11:
Register Map
Address
Symbol
Register
Description
0x0
TVAL
Temperature Register
Contains the temperature value
0x1
CONFIG
Configuration Register
Configuration settings of the temperature sensor
0x2
TLOW
TLOW Register
Low temperature threshold value
0x3
THIGH
THIGH Register
High temperature threshold value
This means that in order to access the different registers, the
index register must be set accordingly. With the exception of
the TVAL register (which contains the temperature value data),
all registers are read/write accessible.
Configuration Register
The configuration register is a 16-bit register which defines the
operation modes of the device. Any read/write operations
processes the MSB byte first.
Figure 12:
Configuration Register
Bit
D15
D14
D13
R/W
RW
RO
Bit
SS
Reserved
Default
0
1
D12
D11
D10
D9
D8
D7
D6
RW
0
CF
0
0
MSB Byte
POL
IM
SM
0
0
0
CR
1
D5
D4
RO
RW
D3
1
D1
D0
0
0
RO
AL
0
D2
Reserved
0
0
0
LSB Byte
In Figure 12 the configuration register is shown. The bits D0-4
and D13-14 are not to be used and are set to read only. The
explanation of the other bits are detailed in the following
sections
Page 8
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Detailed Descriptions
Data Width, Bit D4
For AS6200 only the 12 bit mode is supported by the device,
which means that the DW should always be set to 0.
Alert, Bit D5
The alert bit can be used to easily compare the current
temperature reading to the thresholds that can be set in the
TLOW and THIGH registers.
If the polarity bit is set to 0, the AL bit is read as 1 until the
converted temperature value exceeds the defined value in the
high temperature threshold register THIGH for the number of
defined consecutive faults (bits CF). Such an event causes the
AL bit to toggle to 0 and the value is kept until the converted
temperature value falls below the defined value in the low
temperature threshold register TLOW for the number of defined
consecutive faults. If this condition is met, the AL bit is reset to 1.
The polarity bit (POL) defines the active state of the alert bit as
depicted in the following figure.
The alert bit has the same setting as the alert output as long as
the device is configured for the comparator mode.
Figure 13:
State Diagram of the Alert Bit
POL = 0:
POL = 1:
AL = 1
T < TLOW
for N consecutive
cycles
AL = 0
T > THIGH
for N consecutive
cycles
T < TLOW
for N consecutive
cycles
AL = 0
T > THIGH
for N consecutive
cycles
AL = 1
Conversion Rate, Bit D6-D7
The conversion rate bits define the number of executed
temperature conversions per time unit. Additional readouts of
the temperature register between conversion is possible but
not recommended because the value is changed only after a
conversion is finished.
Values of 125ms, 250ms, 1s and 4s per conversion can be
configured while the default rate is set to 250ms. This
corresponds to a value of 4 conversions per second.
ams Datasheet
[v1-01] 2016-Jun-17
Page 9
Document Feedback
AS6200 − Detailed Descriptions
The following table summarizes the different configuration
settings:
Figure 14:
Conversion Rate Configuration
CR Bits
Conversion
Rate
Conversion
Frequency
D7
D6
0
0
4s
0.25Hz
0
1
1s
1Hz
1
0
250ms
4Hz (default value)
1
1
125ms
8Hz
The device immediately starts a conversion after a power-on
sequence and provides the first result after typ. 32ms (max.
40ms). A higher power consumption occurs during the actual
conversion while the device stays in the standby mode after a
finished conversion until the next conversion is activated as
shown in the following figure.
Figure 15:
Conversion Sequence
Powerup
Active
Standby
Standby
TS
Conversion Rate
Page 10
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Detailed Descriptions
Sleep Mode, Bit D8
The sleep mode is activated by setting the bit SM in the
configuration register to 1. This shuts the device down
immediately and reduces the power consumption to a
minimum value.
The serial interface is the only active circuitry in the sleep mode
in order to provide access to the digital registers.
After resetting the SM bit to 0, the device enters the continuous
conversion mode.
Figure 16:
Sleep Mode Configuration
SM Bit
Operation Mode
0
Continuous Conversion Mode
1
Sleep Mode
Interrupt Mode, Bit D9
The interrupt mode bit defines whether the device operates in
the temperature comparator mode or interrupt mode. This
defines the operation mode of the ALERT output as described
in the polarity bit section.
Figure 17:
Interrupt Mode Configuration
IM Bit
Operation Mode
0
Comparator Mode
1
Interrupt Mode
The comparator mode is characterized that if the temperature
value exceeds the THIGH value, the alert output is changed (e.g.
from high to low if the polarity bit is set to 0 and vice versa).
The alert output stays in that condition until the measured
temperature drops below the defined TLOW value.
The interrupt mode is characterized that it changes the alert
output as soon as the measured temperature crosses the THIGH
or TLOW value threshold.
The alert bit has the same setting as the alert output if the
device is set to comparator mode.
ams Datasheet
[v1-01] 2016-Jun-17
Page 11
Document Feedback
AS6200 − Detailed Descriptions
Figure 18:
ALERT Output Functionality
Converted Temperature
(TVAL)
THIGH
THIGH
TLOW
TLOW
ALERT
IM=0, POL=0
ALERT
IM=1, POL=0
ALERT
IM=0, POL=1
ALERT
IM=1, POL=1
H
L
H
L
H
L
H
L
t
Read
Read
Read
Polarity, Bit D10
The polarity bit configures the polarity of the ALERT output. If
the polarity bit is cleared, the ALERT output is low active while
it becomes high active if the polarity bit is set to ‘1’.
Figure 19:
Polarity Bit Configuration
Page 12
Document Feedback
POL Bit
ALERT Output
0
Active low
1
Active high
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Detailed Descriptions
Consecutive Faults, Bits D11-D12
A fault condition persists if the measured temperature either
exceeds the configured value in register THIGH or falls below
the defined value in register TLOW. As a result, the ALERT pin
indicates the fault condition if a defined number of consecutive
temperature readings meets this fault condition. The number
of consecutive faults are defined with two bits (D12 and D11)
and prevent a false alert if environmental temperature noise is
present. The register configuration is shown in the following
table.
Figure 20:
Consecutive Faults Bit Settings
CF Bits
Consecutive Faults (N)
D12
D11
0
0
1
0
1
2
1
0
4
1
1
6
Single Shot Conversion, Bit D15
The device features a single shot measurement mode if the
device is in sleep mode (SM=1). By setting the “Single Shot-bit”
to 1, a single temperature conversion is started and the SS-bit
can be read as 1 during the active conversion operation. Once
the conversion is completed, the device enters the sleep mode
again and the SS-bit is set to 0. The single shot conversion allows
very low power consumption since a temperature conversion
is executed on demand only. This allows a user defined timing
of the temperature conversions to be executed and is used if
the consecutive operation mode is not required.
As the device exhibits a very short conversion time, the effective
conversion rate can be increased by setting the single shot bit
repetitively after a conversion has finished. However, it has to
be ensured that the additional power is limited, otherwise
self-heating effects have to be considered.
Figure 21:
Single Shot Conversion Bit Settings
SS Bit
ams Datasheet
[v1-01] 2016-Jun-17
Conversion
0
No conversion ongoing/conversion finished
1
Start Single Shot conversion /conversion ongoing
Page 13
Document Feedback
AS6200 − Detailed Descriptions
High- and Low-Limit Registers
If the comparator mode is configured (IM=0), the ALERT output
becomes active if the temperature equals or exceeds the
defined value in register THIGH for the configured number of
consecutive faults (N). This configuration is defined by the field
CF in the configuration register. The ALERT output remains
assigned until the converted temperature value equals or falls
below the defined value in register TLOW for the same number
of consecutive fault cycles.
If the interrupt mode is configured (IM=1), the ALERT output
becomes active if the temperature equals or exceeds the
defined value in register THIGH for the configured number of
consecutive fault cycles. It remains active until a read operation
is executed on any register. The ALERT output is also cleared if
the device is set into sleep mode by setting bit SM in the
configuration register.
Once the ALERT output is cleared, it is activated again only if
the temperature value falls below the configured value in
register TLOW. It remains active unless a read operation has
taken place.
This sequence is repeated unless the device is set into the
comparator mode or reset by the General Call Reset command.
This reset command clears the interrupt mode bit and
consequently puts the device into the comparator mode.
The sequential behavior is summarized in the following figure.
Page 14
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Detailed Descriptions
Figure 22:
ALERT Operation Modes
Comparator Mode
ALERT output
cleared
T ≤ TLOW for
N consecutive cycles
T ≥ THIGH for
N consecutive cycles
ALERT output
active
General Reset
Command
IM=0
IM=1
Interrupt Mode
Read operation
or
Set to sleep mode
ALERT output
cleared
ALERT output
active
T ≤ TLOW for
N consecutive cycles
T ≥ THIGH for
N consecutive cycles
ALERT output
active
ALERT output
cleared
Read operation
or
Set to sleep mode
The following table defines the content of the registers TLOW
and THIGH. For data transmission, the MSB byte is transmitted
first, followed by the LSB byte. The data format for representing
the threshold temperatures is equal to the temperature register
(TVAL). After a powerup, the registers are initialized with the
following default values:
ams Datasheet
[v1-01] 2016-Jun-17
Page 15
Document Feedback
AS6200 − Detailed Descriptions
Figure 23:
Default Values for THIGH and TLOW
Register
Temperature
Binary Value (12 Bit)
TLOW
75°C
L11..L0 = 0100 1011 0000
THIGH
80°C
H11..H0 = 0101 0000 0000
The following table defines the register bits of the THIGH and
TLOW register.
Figure 24:
Register Bit Settings for THIGH/TLOW
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
H11
H10
H9
H8
H7
H6
H5
H4
H3
H2
H1
H0
0
0
0
0
MSB Byte
LSB Byte
Temperature Register
The temperature register contains the digitally converted
temperature value and can be read by setting the index pointer
to the TVAL register (0x0).
Figure 25:
Temperature Value Register
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
T11
T10
T9
T8
T7
T6
T5
T4
T3
T2
T1
T0
0
0
0
0
MSB Byte
LSB Byte
Two consecutive bytes must be read to obtain the complete
temperature value. The MSB byte (Bits D15…D8) is transmitted
upon the first read access and the LSB byte (Bits D7…D0) is
transmitted after the second read access. The least significant
bits D3…D0 are set to 0.
A temperature value is represented as a two complement value
in order to cover also negative values. After powerup, the
temperature value is read as 0°C until the first conversion has
been completed. One LSB corresponds to 0.0625°C.
Page 16
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Detailed Descriptions
The binary values can be calculated according to the following
formulas:
Positive values: |Value| / LSB
Negative values: Complement( |Value| / LSB ) + 1
Example 75°C:
75ºC / 0.0625ºC = 1200 = Binary 0100 1011 0000 = Hex 4B0
Example -40°C:
|-40ºC| / 0.0625ºC + 1 = 640 + 1 = Binary 0010 1000 0000 + 1 =
1101 0111 1111 + 1 = 1101 1000 0000 = Hex D80
Figure 26:
Temperature Conversion Examples
Temperature (°C)
Digital Output (Binary)
Digital Output (Hex)
100.0
0110 0100 0000
640
75.0
0100 1011 0000
4B0
50.0
0011 0010 0000
320
25.0
0001 1001 0000
190
0.125
0000 0000 0010
002
0.0625
0000 0000 0001
001
0.0
0000 0000 0000
000
-0.0625
1111 1111 1111
FFF
-0.125
1111 1111 1110
FFE
-25.0
1110 0111 0000
E70
-40.0
1101 1000 0000
D80
ams Datasheet
[v1-01] 2016-Jun-17
Page 17
Document Feedback
AS6200 − Detailed Descriptions
Serial Interface
The device employs a standard I²C-Interface.
Bus Description
A data transfer must be invoked by a master device (e.g.
microcontroller) which defines the access to the slave device.
The master device defines and generates the serial clock (SCL)
and the start/stop conditions.
In order to address a specific device, a START condition has to
be generated by the master device by pulling the data line (SDA)
from a logic high level to a logic low level while the serial clock
signal (SCL) is kept at high level.
After the start condition, the slave address byte is transmitted
which is completed with a ninth bit which indicates a read
(bit=’1’) or a write operation (bit=’0’) respectively. All slaves
read the data on the rising edge of the clock. An acknowledge
signal is generated by the addressed slave during the ninth
clock pulse. This acknowledge signal is produced by pulling the
pin SDA to a low level by the selected slave.
Subsequently, the byte data transfer is started and finished by
an acknowledge bit. A change in the data signal (SDA) while the
clock signal (SCL) is high causes a START or STOP condition.
Hence, it must be ensured such a condition is prevented during
a data transfer phase.
After completing the data transfer, the master generates a STOP
condition by pulling the data line (SDA) from low level to high
level while the clock signal (SCL) is kept at high level.
Data Interface
A bus connection is created by connecting the open drain
input/output lines SDA and SCL to the two wire bus. The inputs
of SDA and SCL feature Schmitt-trigger inputs as well as low
pass filters in order to suppress noise on the bus line. This
improves the robustness against spikes on the two wire
interface.
Both fast transmission mode (1kHz to 400kHz) and high-speed
transmission mode (1kHz to 3.4MHz) are employed to cover
different bus speed settings.
Any data transfer transmits the MSB first and the LSB as last bit.
Page 18
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Detailed Descriptions
Bus Address
A slave address consists of seven bits, followed by a data
direction bit (read/write operation). The slave address can be
selected from a pool of two different address settings by
connecting the input pin ADD0 to an appropriate signal as
summarized in the following table.
The ADD0 must not be left unconnected.
Figure 27:
I²C Address Select Configuration
ADD0 Connection
Device Address (bin)
Device Address (hex)
VSS
100 1000
0x48
VDD
100 1001
0x49
Read/Write Operation
In order to access an internal data register, the index register
must be written in advance. This register contains the actual
register address and selects the appropriate register for an
access. A typical transfer consists of the transmission of the
slave address with a write operation indication, followed by the
transmission of the register address and is finalized with the
actual register content data transfer. This implies that every
write operation to the temperature sensor device requires a
value for the index register prior to the transmission of the
actual register data.
The index register defines the register address for both the write
and read operation. Consequently, if a read operation is
executed, the register address is taken from the index register
which was defined from the last write operation.
If a different register needs to be read, the index register has to
be written in advance to define the new register address. This
is accomplished by transmitting the slave address with a low
R/W bit, followed by the new content of the index register.
Subsequently, the master provokes a START condition on the
bus and transmits the slave address with a high R/W bit in order
to initiate a read operation.
Since the index register always keeps its last value, reads can
be executed repetitively on the same register.
Similarly to the byte transfer where the MSB is transmitted first,
the transfer of a 16-bit word is executed by a two byte transfer
whereas the MSB byte is always transmitted first.
ams Datasheet
[v1-01] 2016-Jun-17
Page 19
Document Feedback
AS6200 − Detailed Descriptions
Slave Operation
The device employs a slave functionality only (slave transmitter
and slave receiver) and cannot be operated as a bus master.
Consequently, the device never actively drives the SCL line.
Slave Receiver Mode
Any transmission is invoked by the master device by
transmitting the slave address with a low R/W bit. Subsequently,
the slave device acknowledges the reception of the valid
address by pulling the ninth bit to a low level. Following to
acknowledge, the master transmits the content of the index
register. This transfer is again acknowledged by the slave
device. The next data byte(s) are written to the actual data
register which is selected by the index register while each
transfer is acknowledged upon a completed transfer by the
slave device. A data transfer can be finished if the master
transmits a START or a STOP condition on the bus.
Slave Transmitter Mode
The master transmits the slave address with a high R/W bit. In
turn, the slave acknowledges a valid slave address.
Subsequently, the slave transmits the MSB byte of the actual
selected data register by the index register. After the MSB byte
transmission, acknowledge is sent by the master. Afterwards,
the LSB byte is transmitted by the slave which is also
acknowledged by the master after the completed transmission.
The data transfer can be terminated by the master by
transmitting a Not-Acknowledge after the transmitted slave
data or by invoking a START or a STOP condition on the bus.
Alert Function
If the device is configured for an interrupt mode operation
(IM=1), the ALERT output can be used as an alert signal.
If the polarity bit is set to ‘0’ (POL=’0’), the alert condition bit is
set to ‘0’ in case the temperature has exceeded the configured
value in register THIGH. Accordingly, the alert condition bit is
set to ‘1’ if the temperature has fallen below the configured
value in register TLOW.
If the polarity bit is set to ‘1’ (POL=’1’), the alert condition bit is
inverted. The following table summarizes the status of the alert
condition bit with different alert conditions and polarity
configurations.
Page 20
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Detailed Descriptions
Figure 28:
Alert Condition Bit
POL
Alert Condition
Alert Condition Bit
(AC-Bit)
0
T ≥ THIGH
0
0
T ≤ TLOW
1
1
T ≥ THIGH
1
1
T ≤ TLOW
0
General Call
A general call is issued by the master by transmitting the
general call address (000 0000) with a low R/W bit. The slave
device acknowledges the general call address and responds to
commands in the second byte. If the master transmits a value
of 0000 0110 as a second byte, the device is reset and all
registers are initialized with their default values.
In contrast to the General Call Address, the General Address
Acquire command is not supported.
High Speed Mode
The bus operation is limited to 400kHz unless a high speed
command is issued by the master device as the first byte after
a START condition. This switches the bus to a high speed
operation which allows data transfer frequencies up to 3.4MHz.
Such a command is not acknowledged by the slave but the
input filter time constants on the serial interface (SDA and SCL)
are adapted to allow the higher transfer rate.
After a high speed command, the slave address is transmitted
by the master in order to invoke a data transfer. The bus keeps
operating at the higher operating frequency until the master
issues a STOP condition on the serial bus. Upon the reception
of the STOP condition by the slave, the input filters are switched
to their initial time constants which allow lower transfer rates
only.
ams Datasheet
[v1-01] 2016-Jun-17
Page 21
Document Feedback
AS6200 − Detailed Descriptions
Summary of Bus Commands
Figure 29:
Summary of Bus Commands
Command
Address
General Call Address
000 0000
Device initialization
General Address Acquire
High Speed Command
Data Value
0000 0110
Not supported
0000 1xxx
Timeout Function
The serial interface of the slave device is reset if the clock signal
SCL is kept low for typ. 30ms. Such a condition results in a
release of the data line by the slave in case it has been pulled
to low level. The slave remains inactive after a timeout and waits
for a new START command invoked by the bus master. In order
to prevent a timeout, the bus transfer rate must be higher than
1kHz.
Bus Conditions
The following conditions occur on the serial bus which is
compatible to the I²C-Bus.
• Bus Idle: The signals SDA and SCL are not actively driven
and pulled to a high level by an external pull-up resistor.
• Start Data Transfer: A transition of the SDA input from
high to low level while the SCL signal is kept at high level
results in a START condition. Such a START condition must
precede any data transfer.
• Stop Data Transfer: A transition of the SDA input from
low to high level while the SCL signal is kept at high level
results in a STOP condition. Any data transfer is finished
by generating a STOP or START condition.
• Data Transfer: The master device defines the number of
data bytes between a START and STOP condition and there
is no limitation in the amount of data to be transmitted.
If it is desired to read only a single MSB byte without the
LSB byte, a termination of the data transfer can be
provoked by issuing a START or STOP condition on the bus.
• Acknowledge: It is mandatory for each slave device to
respond with acknowledge if the device is addressed by
the master. Acknowledge is indicated by pulling down the
data line (SDA) while the clock signal (SCL) is high in the
acknowledge clock phase. In order to avoid an unwanted
START or STOP condition on the bus, setup and hold times
must be met.
The master can signal an end of data transmission by
transmitting a Not-Acknowledge on the last transmitted
data byte by keeping the acknowledge bit at high level.
Page 22
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Detailed Descriptions
Timing Characteristics
Figure 30:
Serial Interface Timing Diagram
STOP
START
tLOW
tRISE
START
tHIGH
STOP
tFALL
SCL
SDA
tBUF
tHDSTA
tSUDAT
tHDDAT
tSUSTA
tSUSTO
Figure 31:
Bus Timing Specifications
Fast Mode
Parameter
High Speed Mode
Symbol
Unit
Min
Max
Min
Max
0.4
0.001
3.4
SCL Clock Frequency
fSCL
0.001
Bus free time between STOP and
START condition
tBUF
600
160
ns
Hold time after repeated START
condition
tHDSTA
100
100
ns
Repeated START condition setup time
tSUSTA
100
100
ns
Data in hold time
tHDDAT
10
10
ns
tDH
100
100
ns
tSUDAT
100
10
ns
SCL clock low period
tLOW
1300
160
ns
SCL clock high period
tHIGH
600
60
ns
Data out hold time (1)
Data setup time
MHz
Clock/Data fall time
tF
300
160
ns
Clock/Data rise time
tR
300
160
ns
Clock/Data rise time for SCL≤100kHz
tR
1000
-
ns
Note(s):
1. The device will hold the SDA line high for 100 ns during the falling edge of the SCL.
ams Datasheet
[v1-01] 2016-Jun-17
Page 23
Document Feedback
AS6200 − Detailed Descriptions
Timing Diagrams
The following timing diagrams depict the different bus
operation modes and data transmission.
Figure 32:
Timing Diagram for Word Write
Frame 1: Slave Address Byte
Frame 2: Index Register Byte
1
2
3
4
5
6
7
8
1
0
0
1
0
A1
A0
R/W
9
1
2
3
4
5
6
7
8
0
0
0
0
0
0
IX1
IX0
9
SCL
SDA
Values are defined by
ADD0 pin setting
Start
by master
Acknowledge
by slave
Acknowledge
by slave
Frame 3: MSB Data Byte
Frame 4: LSB Data Byte
1
2
3
4
5
6
7
8
D7
D6
D5
D4
D3
D2
D1
D0
9
1
2
3
4
5
6
7
8
D7
D6
D5
D4
D3
D2
D1
D0
9
SCL
(Continued)
SDA
(Continued)
Acknowledge
by slave
Page 24
Document Feedback
Acknowledge
Stop
by slave by master
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Detailed Descriptions
Figure 33:
Timing Diagram for Word Read
Frame 1: Slave Address Byte
Frame 2: Index Register Byte
1
2
3
4
5
6
7
8
1
0
0
1
0
A1
A0
R/W
9
1
2
3
4
5
6
7
8
0
0
0
0
0
0
IX1
IX0
9
SCL
SDA
Start
by master
Values are defined by
ADD0 pin setting
Acknowledge
by slave
Acknowledge
Stop
by slave by master
Frame 3: Slave AddressByte
Frame 4: Register MSB Data Byte
1
2
3
4
5
6
7
8
1
0
0
1
0
A1
A0
R/W
9
1
2
3
4
5
6
7
8
D7
D6
D5
D4
D3
D2
D1
D0
9
SCL
(Continued)
SDA
(Continued)
Start
by master
Acknowledge
by slave
Acknowledge
by master
Frame 5: Register LSBData Byte
1
2
3
4
5
6
7
8
D7
D6
D5
D4
D3
D2
D1
D0
9
Acknowledge
by master
ams Datasheet
[v1-01] 2016-Jun-17
Stop
by master
Page 25
Document Feedback
AS6200 − Application Information
Application Information
Figure 34:
Typical Application for the AS6200 Temperature Sensor
VDD
RPU
Serial
Interface
Pull-up resistors
SDA
VDD
Interrupt
10nF
VDD
ADD0
AS6200
Microcontroller
(Bus Master)
Slave
SCL
VSS
ALERT
Address Select
In Figure 34 the connections of the AS6200 temperature
sensors to a microcontroller and the supply voltage are shown.
The AS6200 is connected to a microcontroller via an I²C bus
(SDA and SCL only). Additionally the Alert output can also be
used for temperature monitoring (e.g. using the interrupt
mode, refer to IM bit settings), an example is given in Figure 34
where the Alert output is connected to a microcontroller.
The I²C of the AS6200 address of the can be selected by
connecting the ADD0 pin to VDD or VSS (refer to Figure 27). This
pin must not be left unconnected.
Page 26
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Application Information
External Components
Figure 35:
Schematic with External Components
VDD
RPU
Pull-up resistors
SDA
SDA
VDD
VDD
Decoupling
Cap
ADD0
AS6200
Slave
SCL
SCL
VSS
ALERT
ALERT
Figure 36:
Values for External Components
Parameter
Min
Decoupling capacitor
10
Pull-up resistors
10
Max
Unit
nF
18
kΩ
In Figure 35 and Figure 36 the schematics for external
components are shown.
The decoupling capacitor for the supply should have a value of
at least 10 nF.
The pull-up resistors on the serial interface and the interrupt
also depend on the bus capacitance and on the clock speed, in
Figure 36 recommended values are given.
ams Datasheet
[v1-01] 2016-Jun-17
Page 27
Document Feedback
AS6200 − Package Drawings & Mark ings
Package Drawings & Markings
Figure 37:
Mechanical Dimensions of the WLCSP Package
Columns
2
3
A1
A2
A3
ALERT
VSS
SCL
RoHS
Rows
A
1
Green
B
B1
B2
B3
ADD0
VDD
SDA
Top View
Columns
2
1
A3
A2
A1
SCL
VSS
ALERT
dy
Rows
A
B3
B2
B1
SDA
VDD
ADD0
ay
B
Y
ay
3
Bottom
View
d
ax
dx
dx
ax
X
Page 28
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Package Drawings & Markings
Figure 38:
Mechanical Specifications of WLCSP Package
Dimension [µm]
Symbol (1)
Min
Typ
Max
X
1450
1530
Y
960
1040
ax
325
dx
400
ay
280
dy
400
d
250
Thickness (w.o. balls)
378
Note(s):
1. As used in Figure 37
Figure 39:
Marking of WLCSP Package (Top View)
z XXXX
AS6200
Figure 40:
Package Code
XXXX
Tracecode
ams Datasheet
[v1-01] 2016-Jun-17
Page 29
Document Feedback
AS6200 − Ordering & Contact Information
Ordering & Contact Information
Figure 41:
Ordering Information
Ordering Code
Package
Marking
Delivery Form
Delivery Quantity
AS6200-AWLT-S
WLCSP
AS6200
7” Tape and Reel in dry pack
500 pcs/reel
AS6200-AWLT-L
WLCSP
AS6200
13” Tape and Reel in dry pack
5000 pcs/reel
Buy our products or get free samples online at:
www.ams.com/ICdirect
Technical Support is available at:
www.ams.com/Technical-Support
Provide feedback about this document at:
www.ams.com/Document-Feedback
For further information and requests, e-mail us at:
[email protected]
For sales offices, distributors and representatives, please visit:
www.ams.com/contact
Headquarters
ams AG
Tobelbaderstrasse 30
8141 Premstaetten
Austria, Europe
Tel: +43 (0) 3136 500 0
Website: www.ams.com
Page 30
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − RoHS Compliant & ams Green Statement
RoHS Compliant & ams Green
Statement
RoHS: The term RoHS compliant means that ams AG products
fully comply with current RoHS directives. Our semiconductor
products do not contain any chemicals for all 6 substance
categories, including the requirement that lead not exceed
0.1% by weight in homogeneous materials. Where designed to
be soldered at high temperatures, RoHS compliant products are
suitable for use in specified lead-free processes.
ams Green (RoHS compliant and no Sb/Br): ams Green
defines that in addition to RoHS compliance, our products are
free of Bromine (Br) and Antimony (Sb) based flame retardants
(Br or Sb do not exceed 0.1% by weight in homogeneous
material).
Important Information: The information provided in this
statement represents ams AG knowledge and belief as of the
date that it is provided. ams AG bases its knowledge and belief
on information provided by third parties, and makes no
representation or warranty as to the accuracy of such
information. Efforts are underway to better integrate
information from third parties. ams AG has taken and continues
to take reasonable steps to provide representative and accurate
information but may not have conducted destructive testing or
chemical analysis on incoming materials and chemicals. ams AG
and ams AG suppliers consider certain information to be
proprietary, and thus CAS numbers and other limited
information may not be available for release.
ams Datasheet
[v1-01] 2016-Jun-17
Page 31
Document Feedback
AS6200 − Copyrights & Disclaimer
Copyrights & Disclaimer
Copyright ams AG, Tobelbader Strasse 30, 8141 Premstaetten,
Austria-Europe. Trademarks Registered. All rights reserved. The
material herein may not be reproduced, adapted, merged,
translated, stored, or used without the prior written consent of
the copyright owner.
Devices sold by ams AG are covered by the warranty and patent
indemnification provisions appearing in its General Terms of
Trade. ams AG makes no warranty, express, statutory, implied,
or by description regarding the information set forth herein.
ams AG reserves the right to change specifications and prices
at any time and without notice. Therefore, prior to designing
this product into a system, it is necessary to check with ams AG
for current information. This product is intended for use in
commercial applications. Applications requiring extended
temperature range, unusual environmental requirements, or
high reliability applications, such as military, medical
life-support or life-sustaining equipment are specifically not
recommended without additional processing by ams AG for
each application. This product is provided by ams AG “AS IS”
and any express or implied warranties, including, but not
limited to the implied warranties of merchantability and fitness
for a particular purpose are disclaimed.
ams AG shall not be liable to recipient or any third party for any
damages, including but not limited to personal injury, property
damage, loss of profits, loss of use, interruption of business or
indirect, special, incidental or consequential damages, of any
kind, in connection with or arising out of the furnishing,
performance or use of the technical data herein. No obligation
or liability to recipient or any third party shall arise or flow out
of ams AG rendering of technical or other services.
Page 32
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Document Status
Document Status
Document Status
Product Preview
Preliminary Datasheet
Datasheet
Datasheet (discontinued)
ams Datasheet
[v1-01] 2016-Jun-17
Product Status
Definition
Pre-Development
Information in this datasheet is based on product ideas in
the planning phase of development. All specifications are
design goals without any warranty and are subject to
change without notice
Pre-Production
Information in this datasheet is based on products in the
design, validation or qualification phase of development.
The performance and parameters shown in this document
are preliminary without any warranty and are subject to
change without notice
Production
Information in this datasheet is based on products in
ramp-up to full production or full production which
conform to specifications in accordance with the terms of
ams AG standard warranty as given in the General Terms of
Trade
Discontinued
Information in this datasheet is based on products which
conform to specifications in accordance with the terms of
ams AG standard warranty as given in the General Terms of
Trade, but these products have been superseded and
should not be used for new designs
Page 33
Document Feedback
AS6200 − Revision Information
Revision Information
Changes from 1-00 (2016-Jun-16) to current revision 1-01 (2016-Jun-17)
Page
Updated Figure 6
5
Note(s):
1. Page and figure numbers for the previous version may differ from page and figure numbers in the current revision.
2. Correction of typographical errors is not explicitly mentioned.
Page 34
Document Feedback
ams Datasheet
[v1-01] 2016-Jun-17
AS6200 − Content Guide
Content Guide
ams Datasheet
[v1-01] 2016-Jun-17
1
1
2
3
General Description
Key Benefits & Features
Applications
Block Diagram
4
5
Pin Assignments
Absolute Maximum Ratings
6
6
6
Electrical Characteristics
Operating Conditions
Analog System Parameters
7
7
8
9
9
9
11
11
12
13
13
14
16
18
18
18
19
19
20
20
20
20
21
21
22
22
22
23
24
Detailed Descriptions
Digital System Parameters
Configuration Register
Data Width, Bit D4
Alert, Bit D5
Conversion Rate, Bit D6-D7
Sleep Mode, Bit D8
Interrupt Mode, Bit D9
Polarity, Bit D10
Consecutive Faults, Bits D11-D12
Single Shot Conversion, Bit D15
High- and Low-Limit Registers
Temperature Register
Serial Interface
Bus Description
Data Interface
Bus Address
Read/Write Operation
Slave Operation
Slave Receiver Mode
Slave Transmitter Mode
Alert Function
General Call
High Speed Mode
Summary of Bus Commands
Timeout Function
Bus Conditions
Timing Characteristics
Timing Diagrams
26
27
Application Information
External Components
28
30
31
32
33
34
Package Drawings & Markings
Ordering & Contact Information
RoHS Compliant & ams Green Statement
Copyrights & Disclaimer
Document Status
Revision Information
Page 35
Document Feedback