SDX100A2-A [SENSORTECHNICS]

Precision compensated pressure sensors in DIP package; 在DIP封装精密补偿压力传感器


型号：	SDX100A2-A
厂家：	SENSORTECHNICS GMBH
描述：	Precision compensated pressure sensors in DIP package 在DIP封装精密补偿压力传感器传感器压力传感器
文件：	总4页 (文件大小：91K)
中文：	中文翻译
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SDX...A Series

Precision compensated pressure sensors in DIP package

FEATURES

GENERAL DESCRIPTION

The SDX series sensors will provide a very

· 0...1 to 0...100 psi

cost effective solution for pressure appli-

cations that require small size plus per-

formance. These calibrated and temperature

compensated sensors give an accurate and

stable output over a 0 to 50°C temperature

range. SDX devices are available in standard

commercial and prime grades to allow optimi-

zation of accuracy and cost in any given appli-

cation. This series is intended for use with

non-corrosive, non-ionic working fluids such

as air, dry gases and the like.

· DIP package

· Temperature compensated

· Calibrated zero and span

· Small size

· Low noise

Devices are available to measure absolute

and gage pressures from 1 up to 100 psi.

The absolute devices have an internal

vacuum reference and an output voltage

proportional to absolute pressure.

Scale:

1 cm

· High impedance for

low power applications

½ inch

The output of the bridge is ratiometric to the

supply voltage and operation from any D.C.

supply voltage up to +20 V is acceptable.

has a pressure port(s). The PC board area

used by each DIP is approximately 0.26

square inches. This extremely small size

enables the use of multiple sensors in limited

available space. The DIP provides excellent

corrosion resistance and isolation to external

package stress.

APPLICATIONS

The SDX devices feature an integrated circuit

sensor element and laser trimmed thick film

ceramic housed in a compact solvent resis-

tant case.

· Medical equipment

· Computer peripherals

· Pneumatic controls

· HVAC

The DIP mounts on a PC board like a standard

IC with through-hole pins. The pins anchor

the pressure sensor to the PC board and pro-

vide a more secure and stable unit than other

types of packages.

The package is a double wide (i.e., 0.600"

lead spacing) dual-inline-package. This is the

same familiar package used by IC manu-

facturers except it is only 0.470" long and

EQUIVALENT CIRCUIT

ELECTRICAL CONNECTION

TOP VIEWS

Pin 1 identified by

chamfered corner

Pin 1 identified by

chamfered corner

out -

GND

out +

+Vs

GND

out -

+Vs

GND

out -

Vent hole

SDX...G2-A

SDX...A2-A

SDX...D4-A

Note:

The polarity identicated is for pressure applied to

SDX...G2-A:

SDX...A2-A:

SDX...D4-A:

(backward gage)

(forward gage)

(backward gage)

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SDX...A Series

Precision compensated pressure sensors in DIP package

PRESSURE SENSOR CHARACTERISTICS (all devices)

Maximum ratings

Environmental specifications

Supply voltage V_S

+20 V_DC

150 psig

250°C

Temperature ranges

Compensated

Operating

0 to 50°C

-40 to +85°C

-55 to +125°C

0 to 100% RH

Maxium pressure on any port

Lead temperature (soldering 4 sec.)

Storage

Humidity limits

STANDARD PRESSURE RANGES

Full scale span^1,2

Part number

Operating

pressure

Proof¹¹

pressure

Min.

Typ.

Max.

SDX01...

SDX05...

SDX15...

SDX30...

SDX100...

0 - 1 psi

0 - 5 psi

0 - 15 psi

0 - 30 psi

0 - 100 psi

20 psi

30 psi

60 psi

150 psi

17.82 mV

59.40 mV

89.10 mV

99.00 mV

18.0 mV

60.0 mV

90.0 mV

100.0 mV

18.18 mV

60.60 mV

90.90 mV

101.00 mV

COMMON PERFORMANCE CHARACTERISTICS¹

Characteristics

Zero pressure offset

Combined linearity and hysteresis³

Temperature effects (0 to 50°C)⁴

Min.

-0.300

Typ.

Max.

Unit

+0.300

±0.25

±0.5

±0.1

±0.2

±0.4

±0.2

4.0

%FSO

Offset

Span

±1.0

%FSO

Repeatability⁵

Input impedance⁶

±0.5

kΩ

Output impedance⁷

4.0

Common mode voltage⁸

Response time⁹

Long term stability of offset and span¹⁰

1.5

3.0

5.0

V_DC

µsec

100

±0.1

Specification notes:

Reference conditions (unless otherwise noted): supply voltage, V_S= 12V_DC; T_A= 25°C; common mode line pressure = 0 psig;

pressure applied to port 2. For absolute devices only, pressure is applied to port 1 and the output polarity is reversed.

Span is the algebraic difference between the output voltage at full scale pressure and the output at zero pressure. Span is

ratiometric to the supply voltage.

Hysteresis is the maximum output difference at any point within the operating pressure range for increasing and decreasing

pressure. Maximum linearity & hysteresis for the SDX05 is 0.5 %FSO.

Maximum error band of the offset voltage and the error band of the span, relative to the 25°C reading.

Maximum difference in output at any pressure within the operating pressure range and temperature within 0 to +50°C after:

a) 100 temperature cycles, 0 to +50°C.

b) 1.0 million pressure cycles, 0 psi to full scale span.

Input impedance is the impedance between V_Sand ground.

Output impedance is the impedance between + and - outputs.

This is the common mode voltage of the output arms for V_S= 12 V_DC

10.

11.

Response time for a 0 psi to full scale span pressure step change, 10 to 90 % rise time.

Long term stability over a one year period.

If the maximum pressure is exceeded, even momentarily, the package may leak or burst, or the pressure sensing die may fracture.

The proof pressure for the forward gage of all devices in the D4-package is the specified value or 100 psi, whatever is less.

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SDX...A Series

Precision compensated pressure sensors in DIP package

PHYSICAL DIMENSIONS

SDX...G2-A,

SDX...A2-A

0.470

(11.94)

0.550

(13.97)

0.105

(2.67)

0.315

(8.00) typ.

0.280

(7.11) typ.

0.190

(4.83) typ.

compensation

circuit

0.020

(0.51) typ.

0.110

(2.79) typ.

0.600

(15.24) typ.

0.01

(0.25)

0.100

(2.54) typ.

mass: 2 g

dimensions in inches (mm)

SDX...D4-A

0.470

(11.94)

0.550

(13.97)

Ø 0.090

(2.29) typ.

0.300

(7.62)

0.135

(3.43)

0.250

(6.35)

0.430

(10.92) typ.

0.335

(8.50) typ.

compensation

circuit

0.120

(3.05) typ.

0.020

(0.51) typ.

0.110

(2.79) typ.

0.600

(15.24) typ.

0.010

(0.25) typ.

0.100

(2.54) typ.

mass: 2 g

dimensions in inches (mm)

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SDX...A Series

Precision compensated pressure sensors in DIP package

GENERAL DISCUSSION

USER CALIBRATION

The SDX series devices give a voltage output which is

directly proportional to applied pressure. The gage

devices will give an increasing positive going output

when increasing pressure is applied to the pressure

port. The absolute device will give a decreasing output

when increasing pressure is applied to the port. The

devices are ratiometric to the supply voltage and

changes in the supply voltage will cause proportional

changes in the offset voltage and full-scale span.

The SDX devices are fully calibrated for offset and

span and should therefore require little user adjustment

in most applications. For more precise span and offset

adjustments, contact the factory.

VACUUM REFERENCE (absolute devices)

Absolute sensors have a hermetically sealed vacuum

reference chamber. The offset voltage on these units

is therefore measured at vacuum, 0 psia. Since all

pressure is measured relative to a vacuum reference,

all changes in barometric pressure or changes in

altitude will cause changes in the device output.

PNEUMATIC INTERFACE

The DIP also provides convenient mounting and

pressure ports for ease of use with standard 1/16" ID,

1/8" OD, 1/32" wall, flexible plastic tubing for pressure

connection.

MEDIA COMPATIBILITY

SDX devices are compatible with most non-corrosive

gases. Because the circuitry is coated with a protective

silicon gel, many otherwise corrosive environments can

be compatible with the sensors. Fluids must generally

be compatible with silicon gel, plastic, RTV, silicon, and

glass for use with the gage devices (only). For questions

concerning media compatibility, contact the factory.

The small tubing has several advantages over larger

tubing commonly used with pressure sensors:

1) The tubing can be formed in a much smaller radius

without kinking.

2) The tubing is easier to handle.

3) The tubing is available in a variety of colors such

as clear, white, yellow, blue, green etc. to enable

color coding of pneumatic circuits with multiple

pressure sensors in the same way that wiring

harnesses are color coded in electrical circuits.

This greatly simplifies troubleshooting.

4) Less stress is placed on the pressure sensor

package resulting in less potential for offset shift.

5) Less physical space is required for the small tubing.

6) The lower volume of air in the small tubing results in

faster pressure sensor response.

MECHANICAL AND MOUNTING

CONSIDERATIONS

The DIP housing is designed for convenient pressure

connection and easy PC board mounting. For pressure

attachment, tygon and silicon tubing is recommended.

APPLICATION INFORMATION

The application information for the SCX series is also

applicable to the SDX series.

ORDERING INFORMATION

Order number

Pressure range

Absolute

Gage

Differential/Gage

SDX01D4-A

0 - 1 psi

0 - 5 psi

SDX01G2-A

SDX05G2-A

SDX15G2-A

SDX30G2-A

SDX100G2-A

SDX05D4-A

0 - 15 psi

0 - 30 psi

0 - 100 psi

SDX15A2-A

SDX30A2-A

SDX100A2-A

SDX15D4-A

SDX30D4-A

SDX100D4-A

All devices are marked with SDX...A2 or SDX...G2 or SDX...D4 and a golden color dot.

SenSym and Sensortechnics reserve the right to make changes to any products herein. SenSym and Sensortechnics do 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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