All Sensors

DS-0010 Rev A

Enhanced Digital Output Sensors: Industrial temperature range

DIGITALOUTPUTBAROMETERSENSORS

• Medical Instrumentation

• Environmental Controls

• Meteorology

Applications

• All Combined Errors Over Temperature Less Than 0.1%, Typical

• Wide -20 to 85°C Compensated Temperature Range

• Electrically Compatible to All Sensors GA142 Series

• Enhanced Dual Serial Interface Mode

Features

The Digital Output pressure sensors are based upon a proprietary surface mapping technology to produce a fully digital

output that virtually eliminates all repeatable errors over temperature and pressure. This series provides a 12 bit digital

serial output (14 bit in High Resolution Mode) with superior offset, span and linearity characteristics. The output is SPI and

In addition to synchronous communications, the Digital Output pressure sensors incorporates a bi-directional, TTL level,

asynchronous serial interfaces mode (hardware selectable 9,600 or 19,200 baud). This mode includes a command set that

allows the host to interrogate the sensor for model information, pressure range, serial number, pressure units and

conversion factor. The command set also allows the host to select a high resolution output mode, make minor adjustments

to offset and has an addressable feature that alows multiple sensors to be tied to the same interface buss.

This series is intended for use with non-corrosive, non-ionic working fluids such as air, dry gases and the like. All signals

are 5V TTL/CMOS compatible.

General Description

Physical Dimensions

Pin Label

Description

1

Vcc

+5V power supply input

2

Data/SI

Data output for synchronous

mode. Serial in for asynchro-

nous mode.

3

Clock/SO

Clock output for synchronous

mode. Serial out for asynchro-

nous mode.

4

Ready/Mode Ready output for synchronous

mode. Selects asynchronous

mode when held low during

reset.

5

Convert/BR

Convert input for synchronous

mode. Selects one of two

baud rates for asynchronous

mode (low=9,600,

high=19,200).

6

Ground

Ground for power and signals

Pin Descriptions

0.80

(20.3)

0.85

(21.6)

1.10

(27.9)

0.10

Typical

(2.54)

A

B

1

Pin 1 2 34 56

0.66

(16.0)

0.21

(5.3)

0.42

(10.5)

0.48

(12.2)

0.55

(14.0)

0.174 to 0.190

(4.4 to 4.8)

1.08

(27.4)

0.25

(6.4)

Pin Size

0.010 x 0.020

(0.25 x 0.50)

NOTES:

1) Dimensions in inches (millimeters)

Pressure Applied to Port B