AMS 6916

Board mount pressure sensor with ratiometric analog output

April 2019

– Rev. 1.0, preliminary

Page 6/9

www.analog-micro.com

INITIAL OPERATION

AMS 6916 is connected electrically by assembly on a PCB or by mounting it on a suitable socket

1. Pins 1 to

3 have to be connected as shown in Figure 2, pins 4 to 8 are not connected internally, so they can be left

open or shorted to GND.

The pressure connection is established using suitable hoses

2 attached to AMS 6916’s barbed pressure

ports. Depending on the type of sensor and the type of pressure measurement one or two pressure ports

have to be connected up to the measuring media / volumes.

For the pressures at port 1 and 2 (for port definition see Figure 3) the following requirements have to be

fulfilled (according to the definition p1 = pressure at port 1 and p2 = pressure at port 2):

for differential pressure types

3 (AMS 6916-XXXX-D-…):

p1 > p2

for relative / gage pressure types (AMS 6916-XXXX-G-

…):

p1 > pambient, p1 = measuring pressure

for bidirectional differential pressure types (AMS 6916-XXXX-D-B-

…): p

1 > p2

and p1 < p2 possible

for absolute pressure types (AMS 6916-XXXX-A-

…):

p2 = measuring pressure

for barometric pressure types (AMS 6916-XXXX-B-

…):

p2 = measuring pressure

The guidelines on media compatibility have to be taken into account (see "Specification notes", 9) and 10)).

Notes:

1.

ESD precautions are necessary, it is essential to ground machines and personnel properly during assembly and

handling of the device

2.

For horizontal pressure port configuration Analog Microelectronics recommends a silicone hose tubing with inner

diameter Ø = 1.6 mm, outer diameter Ø = 3.2 mm and for vertical pressure port configuration a silicone hose

tubing with inner diameter Ø = 2 mm, outer diameter Ø = 6 mm.

3.

In general a differential pressure sensor can also be used for relative pressure measurements. In case of positive

pressure relative to ambient pressure the measurement pressure has to be applied to port 1. For negative

pressure relative to ambient pressure the measurement pressure is applied to port 2.

Figure 2: Principle electrical circuit