CSDX5000A2R [SENSORTECHNICS]
Digital pressure transducers; 数字压力传感器
| 型号： | CSDX5000A2R |
| 厂家： | 
SENSORTECHNICS GMBH |
| 描述： | Digital pressure transducers |
| 文件： | 总7页 (文件大小：116K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CSDX Series
Digital pressure transducers
FEATURES
· 0...25 mbar to 0...5 bar,
0...±10 mbar to 0...±1 bar,
barometric range 800...1100 mbar
· Absolute, gage or differential pressure
· Digital readout via I2C-bus
· Precision ASIC conditioning
· Temperature compensated
· Non-ratiometric output
· Total accuracy ±0.5 to ±1.0 %FSS
SPECIFICATIONS
ELECTRICAL CONNECTION
Maximum ratings
N/C
+Vs
Supply voltage VS
4.75 V to 5.25 VDC
max. 6.50 VDC
6
1
Lead temperature (2 - 4 sec.)
250°C
SCL
SDA
IC
5
7
2
Temperature ranges
Compensated
Operating
CSDX
220 nF
0 to +85°C
-20 to +105°C
-40 to +125°C
Storage
15 nF
8 4
N/C
3
Vibration
Shock
10 g at 20 - 2000 Hz
100 g for 11 ms
GND
Note: A capacitor of 220 nF is required
between +Vs and GND.
Caution! The sensor is not reverse polarity protected.
Pin 2 is an internal device connection and
should be connected to ground with a
15 nF capacitor.
Incorrect applications of excitation
voltage or ground to the wrong pin can
cause electrical failure.
It is important to place the capacitors as
close to the pins aspossible!
Pins 4, 6 and 8 are internal device
connections and should not be
connected for any reason!
Application of supply voltage above the
maximum can cause electrical failure.
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CSDX Series
Digital pressure transducers
PRESSURE RANGES SPECIFICATIONS
(VS = 5.0 VDC, TA = 25°C)
Part number
Pressure range
Burst pressure1 Sensitivity (typ.)
CSDX0811BARO
CSDX1000A2R
800 to 1100
0 to 1
mbar(a)
2
2
10.7
3.2
1.6
0.6
128
64
bar
(a)
bar
(a)
CSDX2000A2R
0 to 2
4
CSDX5000A2R
0 to 5
10
0.2
0.35
0.35
1
CSDX0025D4R
0 to 25
0 to 50
0 to 100
0 to 250
0 to 500
0 to 1
CSDX0050G2R / D4R
CSDX0100G2R / D4R
CSDX0250G2R / D4R
CSDX0500G2R / D4R
CSDX1000G2R / D4R
CSDX2000G2R / D4R
CSDX5000G2R / D4R
CSDX0010D4D
mbar
(g,d)
32
12.8
6.4
3.2
1.6
0.6
160
64
bar
(g,d)
1
counts/
mbar
2
bar
(g,d)
0 to 2
4
0 to 5
10
0.2
0.2
0.35
0.35
1
0 to ±10
0 to ±25
0 to ±50
0 to ±100
0 to ±250
0 to ±500
0 to ±1
CSDX0025D4D
CSDX0050D4D
32
mbar
(d)
bar
(d)
CSDX0100D4D
16
CSDX0250D4D
6.4
3.2
1.6
CSDX0500D4D
1
CSDX1000D4D
bar(d)
2
Specification notes:
1. If maximum burst pressure is exceeded, even momentarily, the package may leak or burst, or the pressure sensing die
may fracture.
2. Span is the algebraic difference between the output signal for the highest and lowest specified pressure.
3. Total accuracy is the combined error from offset and span calibration, linearity, pressure hysteresis, and temperature
effects. Linearity is the measured deviation based on a straight line. Hysteresis is the maximum output difference at
any point within the operating pressure range for increasing and decreasing pressure. Calibration errors include the
deviation of offset and full scale from nominal values.
4. Delay time between sampling and signal change at the output.
5. The smallest change in the output voltage, given any change in pressure.
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CSDX Series
Digital pressure transducers
PERFORMANCE CHARACTERISTICS
The output signal is not ratiometric to the supply voltage (VS = 5.0 VDC, TA = 25°C)
All CSDX...R and CSDX0811BARO
Characteristics
Min.
368
384
Typ.
Max.
432
Units
Offset at lowest specified pressure
CSDX0025...
CSDX0050...
CSDX0811BARO
400
all others
400
416
Full scale span (FSS)2
Full scale output
3200
counts
CSDX0025...
CSDX0050...
CSDX0811BARO
3568
3584
3600
3600
3632
3616
±1.0
±0.5
all others
Total accuracy (0 to 85°C)3
CSDX0025...
CSDX0050...
CSDX0811BARO
%FSS
all others
Sample rate
100
Hz
Response delay4
2.73
14.11
40
ms
Startup time (power up to 1st result)
Quantization step5
CSDX0811BARO
all others
4
2
6
counts
mA
Current consumption
All CSDX...D
Characteristics
Min.
1968
1984
Typ.
Max.
2032
2016
Units
Zero pressure offset
CSDX0010...
CSDX0025...
CSDX0050...
2000
all others
2000
3200
Full scale span (FSS)2
Output
at max. specified pressure CSDX0010...
CSDX0025...
3568
3584
368
3600
3600
400
3632
3616
432
counts
CSDX0050...
all others
at min. specified pressure CSDX0010...
CSDX0025...
CSDX0050...
all others
384
400
416
Total accuracy (0 to 85°C)3
CSDX0010...
CSDX0025...
CSDX0050...
±1.0
±0.5
%FSS
all others
Sample rate
100
Hz
Response delay4
2.73
14.11
40
ms
Startup time (power up to 1st result)
Quantization step5
2
6
counts
mA
Current consumption
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CSDX Series
Digital pressure transducers
INTRODUCTION
The CSDX is capable to generate a digital output signal. It
runs a cyclic program, which will store a corrected 12-bit
sensor value about every 10 ms within the output registers
of the internal ASIC. In order to use the pressure transducer
for digital signal readout, the device should be connected
to a bidirectional I²C-bus.
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 trans-
mitted without generation of intermediate STOP condition.
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.
According to the I²C-bus communication 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 CSDX is designed to work as a
slave, hence it will only respond to requests from a master
device.
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 pur-
pose. When acknowledge is missed, slave transmitter
becomes inactive. It is on master either to send last com-
mand again or to generate STOP condition in that case.
The I²C-bus master-slave concept requires a unique
address for each device. The CSDX has a hard coded slave
address (1111000xb), therefore it is not possible to access
more than one CSDX on the same I²C-bus line.
DIGITAL I2C INTERFACE
Slave address: Each device connected to the bus has a
unique slave address. After generating a START con-
dition, the master has to transmit the slave address for
the CSDX with a READ command: $F1. The CSDX must
not be accessed with a WRITE command ($F0) as the
correct function of the device can not be guaranteed in
this case (note: a power-down power-up change will
force the sensor to use factory data again).
The CSDX complies with the following protocol (FIGURE I):
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 con-
dition. START conditions are always generated by the
master. Each request for the current pressure value must
be initiated with a START.
DATAoperation:TheCSDXstartstosend2databytescontaining
the current pressure value placed in the output registers.
SCL
SDA
START
condition
Data
valid
Data allowed
to change
STOP
condition
1
S Slave Address R/W A Data Byte 1
S
P
A
Data Byte 2
Slave Address
Read out of pressure value
Next command
S = START condition
A = Acknowledge
Data Byte 1 = High Byte (MSB first)
Data Byte 2 = Low Byte (LSB last)
generated by master
generated by slave
P = STOP condition
FIGURE I: I²C-BUS Protocol of CSDX
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CSDX Series
Digital pressure transducers
I2C INTERFACE PARAMETERS
Parameter
Input high level
Symbol
Conditions
Min.
90
Typ.
Max.
100
10
Unit
% of
Vs
Input low level
0
Output low level
(open drain, IOL = -4 mA)
(pins SCL and SDA)
10
Pull up current
5
20
µA
pF
Load capacitance SDA
SCL clock frequency
400
100
FSCL
tBUF
---
kHz
Bus free time between
STOP and START condition
Hold time (repeated)
START condition
4.7
µs
µs
tHD;STA
to first clock pulse
4.0
tLOW
tHIGH
LOW period of SCL
HIGH period of SCL
4.7
4.0
µs
µs
Setup time repeated
START condition
tSU;STA
4.7
µs
tHD;DAT
tSU;DAT
Data hold time
Data setup time
0
ns
ns
250
Rise time of both
SDA and SCL
Fall time of both
SDA and SCL
Setup time for
STOP condition
tR
tF
---
---
4
300
300
ns
ns
µs
ns
tSU;STO
tSP
Input filter spike
suppression
spikes on SDA or SCL of
that length are suppressed
50
tSU;DAT
tHD;DAT
tSU;STA
tHD;STA
tR
tF
SCL
SDA
tHIGH
tLOW
tSU;STO
tBUF
tHD;STA
SCL
SDA
FIGURE II: Timing characteristics of the I²C interface
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CSDX Series
Digital pressure transducers
PHYSICAL DIMENSIONS
D4 package
1.27 typ
(0.050 typ)
16.89
(0.665)
7.87 typ
(0.310 typ)
13.97
(0.550)
High pressure port
Low pressure port
3.63
(0.143)
2.29
(0.090)
3.38
(0.133)
8.13
(0.320)
8.89
(0.350)
8.26 typ
(.325 typ)
0.51 typ
1.78
(0.070)
(0.02 typ)
2.54 typ
(0.100 typ)
16.64 ±0.64
(0.655 ±0.025)
4.5
(0.177)
6.99
(0.275)
G2 package
3.15
(0.124)
16.89
(0.665)
1.27 typ
(0.050 typ)
13.97
(0.550)
4.9
(0.193)
1.19 typ
(0.047 typ)
2.29 typ
2 ° typ
(0.090 typ)
2.79 typ
(0.11 typ)
8.89
(0.350)
5.08
(0.200)
0.51 typ
(0.02 typ)
16.64 ±0.64
2.54 typ
(0.100 typ)
(0.655 ± 0.025)
4.5
(0.177)
A2 package
16.89
(0.665)
1.27 typ
(0.050 typ)
8.46
(0.333)
13.97
(0.550)
2.29 typ
(0.090 typ)
8.0 typ
(0.315 typ)
8.89
(0.350)
0.51 typ
(0.02 typ)
2.54 typ
(0.100 typ)
16.64 ±0.64
(0.655 ±0.025)
4.5
(0.177)
third angle projection
dimensions in mm (inches)
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CSDX Series
Digital pressure transducers
ELECTRICAL CONNECTIONS
CSDX...D4...
CSDX...G2R
Vs (pin 1)
identifier
Vs (pin 1)
identifier
+Vs
IC
GND
N/C
SCL
N/C
SDA
N/C
+Vs
IC
GND
N/C
SCL
N/C
SDA
N/C
CSDX...A2R,
CSDX...BARO
Vs (pin 1)
identifier
Note: Pins 4, 6 and 8 are internal device
connections and should not be
connected for any reason.
SCL
+Vs
IC
GND
N/C
Pin 2 is an internal device connection
and should be connected to ground
with a 15 nF capacitor.
N/C
SDA
N/C
ORDERING INFORMATION
Pressure range
0 to 25 mbar
Absolute
Gage
Differential/Gage
-
CSDX0025D4R
CSDX0050D4R
CSDX0100D4R
CSDX0250D4R
CSDX0500D4R
-
0 to 50 mbar
CSDX0050G2R
CSDX0100G2R
CSDX0250G2R
CSDX0500G2R
-
0 to 100 mbar
0 to 250 mbar
0 to 500 mbar
800 to 1100 mbar
0 to 1 bar
CSDX0811BARO
CSDX1000A2R
CSDX2000A2R
CSDX5000A2R
CSDX1000G2R
CSDX2000G2R
CSDX5000G2R
CSDX1000D4R
CSDX2000D4R
CSDX5000D4R
CSDX0010D4D
CSDX0025D4D
CSDX0050D4D
CSDX0100D4D
CSDX0250D4D
CSDX0500D4D
CSDX1000D4D
0 to 2 bar
0 to 5 bar
0 to ±10 mbar
0 to ±25 mbar
0 to ±50 mbar
0 to ±100 mbar
0 to ±250 mbar
0 to ±500 mbar
0 to ±1 bar
Other pressure ranges or calibrations are available on request
Sensortechnics reserves the right to make changes to any products herein. Sensortechnics 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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