HMI Series - First Sensor

HMI Series
Amplified pressure sensors
FEATURES
· 100 mbar to 10 bar, 1 to 150 psi
gage or differential pressure
· Increased media compatibility1
· Digital I²C bus output
· Precision ASIC signal conditioning
· Calibrated and temperature compensated2
· SIL and DIP housings
· RoHS compliant
· Quality Management System according
to ISO 13485:2003 and ISO 9001:2008
MEDIA COMPATIBILITY1,2
High pressure port: To be used with gases and
liquids which are compatible with the wetted
materials (high temperature polyamide, ceramic
AL2O3, epoxy, fluorosilicone, glass, silicon).
Low pressure port: To be used with non-corrosive,
non-ionic working fluids such as clean dry air, dry
gases and the like.
ELECTRICAL CONNECTION
DIP versions
+Vs
SPECIFICATIONS
Maximum ratings
Supply voltage VS
HMI...3
HMI...5
Output current
Sink
Source
Environmental
Temperature ranges
Compensated
Operating
Storage3
Humidity limits (non-condensing)
1
2.7 ... 4.2 VDC
4.2 ... 5.5 VDC
max. 6.5 VDC
3
HMI
8
-20 ... +85 °C
-20 ... +85 °C
-40 ... +125 °C
...95 %RH10
max. 10 g, 10...2000 Hz, random
(EN 60068-2-64)
Mechanical shock
max. 50 g, 11 ms
(EN 60068-2-27)
Lead solder temperature
max. 270 °C
(JESD22-B106D)
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SCL
SDA
2
1 mA
1 mA
GND
SIL versions
100 nF
100 nF
+Vs
1
3
(100 % condensing or direct liquid media on high pressure port1)
Vibration
5
C
SCL
HMI
4
SDA
2
GND
100 nF
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HMI Series
Amplified pressure sensors
PRESSURE SENSOR CHARACTERISTICS
(TA=25 °C, RH=50 %)
Part no.
Proof pressure4
Operating pressure
HMIM100U...
HMIM100B...
HMIM250U...
HMIM250B...
HMIB001U...
HMIB001B...
HMIB2x5U...
HMIB005U...
HMIB010U...
HMIP001U...
HMIP001B...
HMIP100U...
0...100 mbar
0...±100 mbar
0...250 mbar
0...±250 mbar
0...1 bar
0...±1 bar
0...2.5 bar
0...5 bar
0...10 bar
0...1 psi
0...±1 psi
0...100 psi
2 bar
2 bar
2 bar
2 bar
5 bar
5 bar
10 bar
14 bar
14 bar
3 0 p si
3 0 p si
2 0 0 p si
Other pressure ranges (e.g. 500 mbar, 5 psi, 150 psi) are available on request. Please contact First Sensor.
PERFORMANCE CHARACTERISTICS2
(TA=25 °C, RH=50 %,
for HMI...3 devices (VS=3.0 VDC) digital output signal is non-ratiometric to VS in the range of VS =2.7...4.2 V,
for HMI...5 devices (VS=5.0 VDC) digital output signal is non-ratiometric to VS in the range of VS =4.2...5.5 V)
Characteristics
Non-linearity (-20...85 °C)6
Accuracy7
Total accuracy (-20...85 °C)8
Response delay9
A/D resolution
Current consumption
Min.
Typ.
Max.
±0.25
±0.25
±1.5
0.5
12
4.5
5.3
HMI...3
HMI...5
Units
%FSS
ms
bi t
mA
All HMI...U... (unidirectional devices)
Characteristics
Zero pressure offset
Full scale span (FSS)5
Full scale output
Min.
2595
29595
Typ.
3000
27000
30000
Max.
3405
Units
counts
30405
All HMI...B... (bidirectional devices)
Characteristics
Zero pressure offset
Full scale span (FSS)5
Output
at max. specified pressure
at min. specified pressure
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Min.
16095
29595
2595
Typ.
16500
27000
30000
3000
Max.
16905
30405
3405
Units
counts
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HMI Series
Amplified pressure sensors
I²C BUS
Introduction
DATA valid (D): State of data line represents valid data when,
after START condition, data line is stable for duration of
HIGH period of clock signal. Data on line must be
changed during LOW period of clock signal. There is
one clock pulse per bit of data.
The HMI is capable to generate a digital output signal. The
device runs a cyclic program, which will store a corrected
pressure value with 12 bit resolution about every 250 µs
within the output registers of the internal ASIC. In order to
use the sensor for digital signal readout, it should be
connected to a bidirectional I²C-bus.
Acknowledge (A): Data is transferred in pieces of 8 bits
(1 byte) on serial bus, MSB first. After each byte receiving
device – whether master or slave – is obliged to pull
data line LOW as acknowledge for reception of data.
Master must generate an extra clock pulse for this purpose. When acknowledge is missed, slave transmitter
becomes inactive. It is on master either to send last command again or to generate STOP condition in that case.
According to the I²C-bus specification, the bus is controlled
by a master device, which generates the clock signal,
controls the bus access and generates START and STOP
conditions. The HMI is designed to work as a slave, hence
it will only respond to requests from a master device.
Digital I²C interface
Slave address: The I²C-bus master-slave concept requires
a unique address for each device. The HMI has a
preconfigured slave address (1111000xb). By factory
programming it is possible to define a secondary slave
address additional to the general one. According to I²C
specification 127 different addresses are available. The
sensor will then listen to both slave addresses. After
generating a START condition the master sends the
address byte containing a 7 bit address followed by a
data direction bit (R/W). A "0" indicates a transmission
from master to slave (WRITE), a "1" indicates a data
request (READ).
The HMI complies with the following protocol (Fig. 1):
Bus not busy: During idle periods both data line (SDA) and
clock line (SCL) remain HIGH.
START condition (S): HIGH to LOW transition of SDA line
while clock (SCL) is HIGH is interpreted as START condition. START conditions are always generated by the
master. Each initial request for a pressure value has to
begin with a START condition.
STOP condition (P): LOW to HIGH transition of SDA line while
clock (SCL) is HIGH determines STOP condition. STOP
conditions are always generated by the master. More than
one request for the current pressure value can be transmitted without generation of intermediate STOP condition.
DATA operation: The sensor starts to send 2 data bytes
containing the current pressure value as a 15 bit
information placed in the output registers.
SCL
SDA
START
condition
Data
valid
1
S Slave Address R/W A
Data allowed
to change
Data Byte 1
A
STOP
condition
Data Byte 2
Read out of first pressure value
generated by master
generated by slave
A
Data Byte 1
P
Read out of n pressure values (optional)
S = START condition
Data Byte 1 = High Byte (MSB first)
A = Acknowledge
Data Byte 2 = Low Byte (LSB last)
P = STOP condition
Fig. 1:
I²C bus protocol
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HMI Series
Amplified pressure sensors
I²C Interface Parameters
Parameter
Symbol
Input high level
Input low level
Output low level
Pull-up resistor
Load capacitance @ SDA
Input capacitance @ SDA/SCL
SCL clock frequency
Bus free time between STOP and START condition
Hold time (repeated) START condition, to first clock pulse
LOW period of SCL
HIGH period of SCL
Setup time repeated START condition
Data hold time
Data setup time
Rise time of both SDA and SCL
Fall time of both SDA and SCL
Setup time for STOP condition
Min.
Typ.
Max.
90
0
100
10
10
5
400
10
400
1
C SD A
CI2C_IN
FSC L
tBUF
tHD.STA
tLOW
tHIGH
tSU.STA
tHD.DAT
tSU.DAT
tR
tF
tSU.STO
100*
1.3
0.8
1.3
0.6
1
0
0.2
Unit
% of V s
kΩ
pF
kHz
µs
0.3
0.3
0.6
* recommended
Note: First Sensor recommends communication speeds of at least 100 kHz (max. 400 kHz).
Please contact us for further information.
tSU;DAT
tHD;DAT
tSU;STA tHD;STA
tR
tSU;STO tBUF
tHD;STA
tF
SCL
SDA
tHIGH
tLOW
SCL
SDA
Fig. 2:
Timing characteristics
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HMI Series
Amplified pressure sensors
PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION
1
2
3
4
HMI...U1... (SIL, axial no ports)
Pin
1
2
3
4
Connection
+Vs
GND
SC L
SD A
first angle projection
High pressure
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dimensions in mm
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HMI Series
Amplified pressure sensors
PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.)
HMI...W1... (DIP, axial no ports)
5
4
6
3
7
2
8
1
Pin Connection
1
+Vs
2
GND
3
C
4
I / C*
5
SC L
6
I / C*
7
I / C*
8
SD A
* Internal connection.
Do not connect for
any reason
first angle projection
High pressure
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dimensions in mm
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HMI Series
Amplified pressure sensors
PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.)
1
2
3
4
HMI...U7... (SIL, 2 ports axial opposite side, barbed)
Pin
1
2
3
4
Connection
+Vs
GND
SC L
SD A
High pressure port
first angle projection
dimensions in mm
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HMI Series
Amplified pressure sensors
PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.)
1
2
3
4
HMI...X7... (SIL, 1 port axial, barbed)
Pin
1
2
3
4
Connection
+Vs
GND
SC L
SD A
High pressure port
first angle projection
dimensions in mm
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HMI Series
Amplified pressure sensors
PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.)
HMI...Z7... (DIP, 1 port axial, barbed)
5
4
6
3
7
2
8
1
Pin Connection
1
+Vs
2
GND
3
C
4
I / C*
5
SC L
6
I / C*
7
I / C*
8
SD A
* Internal connection.
Do not connect for
any reason
High pressure port
first angle projection
dimensions in mm
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HMI Series
Amplified pressure sensors
PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.)
1
2
3
4
HMI...U6... (SIL, 2 ports axial opposite side, straight big)
Pin
1
2
3
4
Connection
+Vs
GND
SC L
SD A
High pressure port
first angle projection
dimensions in mm
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HMI Series
Amplified pressure sensors
PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.)
1
2
3
4
HMI...X6... (SIL, 1 port axial, straight big)
Pin
1
2
3
4
Connection
+Vs
GND
SC L
SD A
High pressure port
first angle projection
dimensions in mm
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HMI Series
Amplified pressure sensors
PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.)
HMI...Z6... (DIP, 1 port axial, straight big)
5
4
6
3
7
2
8
1
Pin Connection
1
+Vs
2
GND
3
C
4
I / C*
5
SC L
6
I / C*
7
I / C*
8
SD A
* Internal connection.
Do not connect for
any reason
High pressure port
first angle projection
dimensions in mm
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HMI Series
Amplified pressure sensors
PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.)
1
2
3
4
HMI...U5... (SIL, 2 ports axial opposite side, needle big)
Pin
1
2
3
4
Connection
+Vs
GND
SC L
SD A
High pressure port
first angle projection
dimensions in mm
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HMI Series
Amplified pressure sensors
PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.)
1
2
3
4
HMI...X5... (SIL, 1 port axial, needle big)
Pin
1
2
3
4
High pressure port
Connection
+Vs
GND
SC L
SD A
first angle projection
dimensions in mm
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HMI Series
Amplified pressure sensors
PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTION (cont.)
HMI...Z5... (DIP, 1 port axial, needle big)
5
4
6
3
7
2
8
1
High pressure port
Pin Connection
1
+Vs
2
GND
3
C
4
I / C*
5
SC L
6
I / C*
7
I / C*
8
SD A
* Internal connection.
Do not connect for
any reason
dimensions in mm
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HMI Series
Amplified pressure sensors
Specification notes:
1. All wetted materials are selected to give a high level of media compatibility. Media compatibility refers to media inside the
pressure port and lid. Improved media compatibility on high pressure port (backward side of sensor chip) since media has no
contact to electronic components. Nevertheless tests with the media used in the specific application are recommended.
2. Sensor is calibrated in air, changes in sensor behaviour based on physical effects caused by the specific media can occur.
Weight of the media and wetting forces can influence the sensor characteristics.
3. Storage temperature of the sensor without package.
4. Proof pressure is the maximum pressure which may be applied without causing durable shifts of the electrical parameters
of the sensing element.
5. Full Scale Span (FSS) is the algebraic difference between the output signal for the highest and lowest specified pressure.
6. Non-linearity is the measured deviation based on Best Fit Straight Line (BFSL).
7. Accuracy is the combined error from non-linearity and hysteresis. Hysteresis is the maximum output difference at any point
within the operating pressure range for increasing and decreasing pressure.
8. Total accuracy is the combined error from offset and span calibration, non-linearity, pressure hysteresis, and temperature
effects. Calibration errors include the deviation of offset and full scale from nominal values.
9. Max. delay time between pressure change at the pressure die and signal change at the output.
10. Tested 1h, up to 85 °C.
Sensors are electronic components and should be handled only in ESD save environments.
NOMENCLATURE
Series Pressure range
Options
HMI
Calibration
M100 100 mbar B Bidirectional
M250 250 mbar U Unidirectional
B 001
1 bar
B 2x5
2.5 bar
B 005
5 bar
B 010
10 bar
P 001
1 p si
P 100
1 0 0 p si
Housing
Porting
U SIL, 2 ports axial
opposite side
(W) DIP, 2 ports axial
opposite side
X
Z
(1) no port
Grade
Voltage
H High
(3) 3 V
5 5V
7 Barbed
(5) Needle big
(6) Straight big
SIL, 1 port axial
DIP, 1 port axial
( ) available on request. Please contact First Sensor.
Example:
HMI
M100
U
U
7
H
5
LABEL INFORMATION
Digit
1 2 3
4
Series
C h ar
M I
-
5
Pressure range
HMI 6
1 p si
7
100 mbar
8
250 mbar
A
1 bar
B
2.5 bar
C
5 bar
L
1 0 0 p si
M
10 bar
6
7
8
Pressure unit /
Housing
Porting
pressure mode /
calibration
U bar,
U SIL,
1 no port
gage/differential,
2 ports axial
unidirectional
opposite side 7 Barbed
B bar,
W DIP,
5 Needle big
gage/differential,
2 ports axial
bidirectional
opposite side 6 Straight big
X SIL,
1 port, axial
9 10 11 12 13 14
Grade/
voltage
Production code
- High, 5 V
/ High, 3 V
Z DIP,
1 port axial
First Sensor reserves the right to make changes to any products herein.
First Sensor does not assume any liability arising out of the application
or use of any product or circuit described herein, neither does it convey
any license under its patent rights nor the rights of others.
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