Pressure sensors
C28 series
Gauge pressure sensor die for back side pressure applications
Applications
ꢀ Medical devices
ꢀ Automotive
ꢀ Automation
Features
ꢀ Piezoresistive MEMS technology
ꢀ Small dimensions: 2.05 × 2.05 mm
ꢀ Square diaphragm
ꢀ Measured media (back side):
Non-aggressive gases and fluids.
Unsuitable for substances which react with
glass or silicon.
ꢀ Whetstone bridge with mV output,
ratiometric to supply voltage
ꢀ Rated pressure ranges 1.6 up to 40 bar
Options
ꢀ Temperature sensing diode
Delivery mode
ꢀ Tray
Dimensional drawings
150
A B
2050
390
800
560
560
Note1
B
X5
X4
A
X9
allowable edge disruptions
80 µm max.
allowable edge disruptions
50 µm max.
X8
X5
700
X4
electrical diagram:
X1
X2
X3
X10
X5
p
X9
X1 : Vout–
X2 : VDD–
X3 : VDD–
X4 : Vout+
X5 : VDD+
X8 : Diode (N)
X9 : Diode (P)
X10: Substrate
280 280
560 560
R1 R2
X8
X1
Si 100
glass
BOROFLOATTM
X4
R4
R3
840
850
all dimensions in µm
Note1: geometry of diaphragm depend
on specification
X3 X2
checked bond area (typ. 100µm x 100µm)
AS SEN PD
2009-08-03
Please read Cautions and warnings and
Page 2 of 8
Important notes at the end of this document.