RCEM250DU [SENSORTECHNICS]

Digital pressure sensors; 数字压力传感器


型号：	RCEM250DU
厂家：	SENSORTECHNICS GMBH
描述：	Digital pressure sensors 数字压力传感器传感器压力传感器
文件：	总7页 (文件大小：102K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

RCE Series

Digital pressure sensors

FEATURES

· 0...±10 mbar to 0...5 bar,

0...±4 inch H₂O to 0...100 psi,

absolute, gage or differential pressure

· Barometric pressure ranges

· SPI bus and analog output

· Precision ASIC conditioning

· Calibrated and temperature

compensated

· Total accuracy ±1.0 %FSS

· Sensortechnics PRO services

MEDIA COMPATIBILITY

To be used with non-corrosive, non-ionic working

fluids such as clean dry air, dry gases and the like.

SPECIFICATIONS

ELECTRICAL CONNECTION

Maximum ratings

Bottom view

Supply voltage V_S

4.75 V to 5.25 V_DC

max. 6.50 V_DC

Output current

Sink

1 mA

CLK

Vout

GND

+Vs

Source

Maximum pressure on any port⁶

10 bar

Lead specifications

Average preheating temperature gradient 2.5 K/s

MISO

Soak time

ca. 3 min

50 s

40 s

15 s

260°C

-3.5 K/s

Time above 217°C

Time above 230°C

Time above 250°C

Peak temperature

Cooling temperature gradient

Pin 1

marked by dot

Note: MOSI is internally connected to high level.

No external port is available.

Temperature ranges

Compensated

Operating

0 to +85 °C

-10 to +85 °C

-20 to +105 °C

Storage

Caution!

The sensor is not reverse polarity protected. Incorrect applications of excitation voltage or ground to the wrong

pin can cause electrical failure. Application of supply voltage above the maximum can cause electrical failure.

E / 11716 / A

1/7

www.sensortechnics.com

RCE Series

Digital pressure sensors

PRESSURE RANGES SPECIFICATIONS

Part number

Pressure range

Burst pressure¹

RCE0611AR

RCEM025DU

RCEM050DU

RCEM100DU

RCEM250DU

RCEM500DU

RCEB001(A,D)U

RCEB002(A,D)U

RCEB005(A,D)U

RCEM010DB

RCEM025DB

RCEM050DB

RCEM100DB

RCEM250DB

RCEM500DB

RCEB001DB

RCE1216AR

RCEH010DU

RCEP001DU

RCEP005DU

RCEP015(A,D)U

RCEP030(A,D)U

RCEP100(A,D)U

RCEH004DB

RCEH010DB

RCEP001DB

RCEP005DB

RCEP015DB

600...1100 mbar

0...25 mbar

0...50 mbar

0...100 mbar

0...250 mbar

0...500 mbar

0...1 bar

2 bar

0.2 bar

0.35 bar

1 bar

2 bar

0...2 bar

5 bar

0...5 bar

10 bar

0.2 bar

0.35 bar

1 bar

0...±10 mbar

0...±25 mbar

0...±50 mbar

0...±100 mbar

0...±250 mbar

0...±500 mbar

0...±1 bar

1 bar

2 bar

12...16 psi

30 psi

3 psi

0...10 inch H₂O

0...1 psi

5 psi

0...5 psi

15 psi

30 psi

70 psi

150 psi

3 psi

0...15 psi

0...30 psi

0...100 psi

0...±4 inch H₂O

0...±10 inch H₂O

0...±1 psi

3 psi

5 psi

0...±5 psi

15 psi

30 psi

0...±15 psi

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. Full Scale Span (FSS) 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. Max. delay time between pressure change at the pressure die and signal change at the output.

5. The response time depends on the adjusted internal A/D resolution of the sensor. For 12 bit it is typ. 0.5 ms. Other A/D resolutions

and reponse times are available on request. Please contact Sensortechnics for further information.

6. Maximum pressure on any port is the maximum operating plus common-mode pressure for differential pressure devices

which can be applied without damaging the sensor. Common Mode Pressure is the pressure applied to both sides of the

diaphragm simultaneously.

E / 11716 / A

2/7

www.sensortechnics.com

RCE Series

Digital pressure sensors

PERFORMANCE CHARACTERISTICS

(V_s= 5.0 V, T_A= 25 °C, analog output signal is ratiometric to V_S, digital output signal is not ratiometric to V_S)

All devices

Characteristics

Total accuracy (0 ... 85°C)³

Min.

Typ.

Max.

Units

%FSS

±1.0

Response delay^4,5

A/D resolution⁵

0.5

bit

D/A resolution

Current consumption (no load)

All RCE...(U,R)

Characteristics

Min.

Typ.

Max.

2300

32300

0.35

Units

DIGITAL PERFORMANCE CHARACTERISTICS

Offset at lowest specified pressure

Full scale span (FSS)²

Full scale output

1700

2000

30000

32000

counts

31700

ANALOGUE PERFORMANCE CHARACTERISTICS

Offset at lowest specified pressure

Full scale span (FSS)²

Full scale output

0.26

4.84

0.31

4.58

4.88

4.93

All RCE...B

Characteristics

Min.

Typ.

Max.

Units

DIGITAL PERFORMANCE CHARACTERISTICS

Zero pressure offset

Full scale span (FSS)²

Output

16700

17000

30000

32000

2000

17300

counts

at max. specified pressure

at min. specified pressure

31700

1700

32300

2300

ANALOGUE PERFORMANCE CHARACTERISTICS

Zero pressure offset

Full scale span (FSS)²

Output

2.55

2.59

4.58

4.88

0.31

2.64

at max. specified pressure

at min. specified pressure

4.84

0.26

4.93

0.35

E / 11716 / A

3/7

www.sensortechnics.com

RCE Series

Digital pressure sensors

SPI - SERIAL PERIPHERAL INTERFACE

Introduction

In general the RCE series supports all combinations of

clock phase (CPHA) and polarity (CPOL). By default it is

programmed to CPHA = 0 and CPOL = 0, which means

that data transmission starts with the rising first clock edge

(see Fig 1).

The RCE is capable to generate a digital output signal.

The device runs a cyclic program, which will store a corrected

sensor value with 12-bit resolution about every 250 µs within

the output registers of the internalASIC. This cyclic program

runs independent from the bus communication. In order to

use the RCE pressure sensor for digital signal readout, it

should be connected to a SPI Master device.

Slave select

The falling edge of the SS line indicates the beginning of

the transfer. Additionally the SS line must not be negated

and reasserted between the three bytes to be transmitted.

SPI specifies four signals: The clock (CLK) is generated by

the master and input to all slaves. MOSI carries data from

master to slave. MISO carries data from slave back to

master. A slave select line (SS) allows individual selection

of a slave device.

Data operation

The MOSI is internally connected to high level. So there is

no data transmission from master to slave. Because of

internal configuration the slave will answer the first byte

with an FFxh. The second and third byte contain the 15 bit

pressure information (see Fig. 2).

SPI Modes

A pair of parameters called clock polarity (CPOL) and clock

phase (CPHA) determine the edges of the clock signal on

which the data are driven and sampled. Each of the two

parameters has two possible states, which allows for four

possible combinations, all of which are incompatible with

one another.

For further information please refer to

Sensortechnics SPI bus application note

SCK cycle

SCK

(CPOL=0)

MSB

LSB

MOSI

MISO

MSB

Sampling

Fig. 1: Example of a standard 1 byte SPI data transfer for CPHA=0 and CPOL=0

Data Byte 1

Data Byte 2

Data Byte 3

MOSI

MISO

X P14 P13 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 P0

Relevant data

Fig. 2: 3 byte data stream between RCE sensor and master containing the pressure value as a 15 bit information

E / 11716 / A

4/7

www.sensortechnics.com

RCE Series

Digital pressure sensors

SPI - SERIAL PERIPHERAL INTERFACE (cont.)

Interface parameters

Parameter

Symbol

Min.

Typ.

Max.

100

Unit

Input high level

Input low level

Output low level

Pull-up resistor

% of Vs

Ω

500

C_MISO

C_{SPI_IN}

Load capacitance @ MISO

400

Input capacitance @ each pin

Signal clock frequency

f_SCK

100*

200

2/f_CLK

640

kHz

t_{SPI_HD_MISO}

t_{SPI_SU_MOSI}

t_{SPI_SU_SS}

MISO hold time after SCK sample slope

MOSI setup time before SCK sample slope

/SS setup time before SCK sample slope

* recommended

Note: Sensortechnics recommends communication speeds of at least 100 kHz (max. 640 kHz).

Please contact your nearest Sensortechnics sales office for further information.

t_{SPI_SU_SS}

t_{SPI_SU_MOSI}

t_{SPI_HD_MISO}

SCK

(CPOL=0)

MOSI

MISO

Fig. 3: Timing characteristics

E / 11716 / A

5/7

www.sensortechnics.com

RCE Series

Digital pressure sensors

PHYSICAL DIMENSIONS

1.10 ref

(27.9 ref

1.03 ref

(26.2) ref

0.85

(21.6)

0.80

(20.3)

0.55

(14.0)

0.36

(9.1)

0.190

(4.8)

2 pls

1.08

(27.4)

0.41

(10.4)

Ø 0.14 (3.6) thru rivet

mounting holes

1 2 3 4 5 6

0.05

(1.3)

0.25

(6.4)

0.020 (0.51) x 0.01 (0.25)

pins 6 pls

Ø 0.08 (2.0)

pressure port B

Port B:

High pressure Port for gage

and differential devices

0.20

0.42

(5.1)

Port A:

(10.7)

High pressure Port for

absolute devices

R0.13

(R3.3) typ

Ø 0.08 (2.0)

pressure port A

0.10

(2.5)

pin spacing

0.05

(1.3)

third angle projection

dimensions in inches (mm)

E / 11716 / A

6/7

www.sensortechnics.com

RCE Series

Digital pressure sensors

ORDERING INFORMATION

Series

Pressure range

Pressure mode

Calibration

Options

RCE

0611*

600...1100 mbar

10 mbar

25 mbar

50 mbar

100 mbar

250 mbar

500 mbar

1 bar

Absolute

Bidirectional

Unidirectional

Barometric

M010**

M025

Differential/Gage

M050

M100

M250

M500

B001

B002***

B005***

1216*

H004**

H010

2 bar

5 bar

12...16 psi

4 inch H₂O

10 inch H₂O

1 psi

P001

P005

5 psi

P015

15 psi

P030***

P100***

30 psi

100 psi

* only available as barometric devices * only available from

** only available as bidirectional

devices

1 bar/15 psi and for

barometric ranges

*** only available as unidirectional

devices

Example:

RCE

M025

Sensortechnics PRO services:

· Extended guarantee period of 2 years

· Custom product modifications and adaptations even for small quantities

· Advanced logistics models for supply inventory and short delivery times

· Technical support through application engineers on the phone or at your site

· Fastest possible technical response for design and QA engineers

... plus other services 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.

E / 11716 / A

7/7

www.sensortechnics.com

RCEM250DU [SENSORTECHNICS]

相关型号：

SI9130DB

SI9135LG-T1

SI9135LG-T1-E3

SI9135_11

SI9136_11

SI9130CG-T1-E3

SI9130LG-T1-E3

SI9130_11

SI9137

SI9137DB

SI9137LG

SI9122E