E777.01 Datasheet, PDF (1/1 Pages) ELMOS Semiconductor AG – Co-integrated pressure sensor

BUS IC
DC/DC CONVERTER
MOTOR DRIVER IC
RIPPLE COUNTER
ÿ Co-integrated pressure sensor
FEATURES
ÿ Supply voltage VDD 5V
ÿ Amplified, calibrated, fully signal conditioned
output of 4.0 VDC FS span (0.5 to 4.5V signal)
ÿ Output ratiometric with supply voltage
ÿ Digital Signal Processor for correction algorithms
ÿ Multi-order temperature compensation for gain
and offset
ÿ For gauge, differential, and absolute applications
ÿ Adjustable output clamps
ÿ Programmable output filter
ÿ EEPROM memory for End-of-line calibration
ÿ – 40°C to + 125°C operating temperature
ÿ Available packages:
ÿ ASIC^plus: SO16w body with nozzle
ÿ bare die
ÿ customer specific
APPLICATION
ÿ Automotive pressure sensing
(MAP, tire pressure, oil, fuel)
ÿ Barometric measurement
ÿ Medical instrumentation
ÿ Industrial
ÿ HVAC
DESCRIPTION
The IC of OEM integrated pressure sensor combines state-of-
the-art pressure sensor technology with signal conditioning to
produce a fully signal-conditioned, amplified, temperature com-
pensated sensor. The sensor utilizes a digital signal processor to
allow multiorder linear correction to achieve increased accuracy
over conventional amplified pressure systems. The device is a co-
integrated die. It is also available as an IC without the sensor and
is therefore suitable for the use of a precision signal processor for
separate sensors.
The system uses an on-chip EEPROM to store the calibration data.
This allows the device to be calibrated end-of-line and so to com-
pensate for packaging stress and/or parametric changes due to
the addition of protective gel. Sensor ID information can also be
stored in the EEPROM.
The chip is currently configured for operating pressure ranges
from 350mbar FS up to 10bar (5PSI to 145PSI FS). For pressure rang-
es below 350mbar (5PSI), the IC interfaces with an off-chip sensor.
The range is extendable above 10bar.
BLOCK DIAGRAM
VDD
ϑ
∫
I² C
80
DRIVER IC
I/O IC
SENSOR IC
ÿ Co-integrated pressure sensor
Tilt angle sensor
Hall sensor IC
SENSOR INTERFACE IC
PINNING
Pin Name
1 NC
2 DEV _ SWITCH
3 I²C _ ID _ SWITCH
4 SCL
5 SDA/OW
6 EEPROM _ VPROG
7 NC
8 DACOUT
9 SENSOR _ EXPT
10 SENSOR _ EXTN
11 NC
12 TM _ EXTC
13 VDD
14 GND
15 NC
16 NC
Description
Not connected
Device switch; ‘0’ : enable I²C; ‘1’ : enable
one-wire
I²C ID switch; ‘0’ : enable write protect;
‘1’: disable write protect (any device
ID is possible)
I²C serial clock (internal pull up)
I²C serial data / one wire (internal pull up)
EEPROM programming voltage input
Not connected
Analog output signal
External sensor bridge input signal
External sensor bridge input signal
Not connected
Test
Supply voltage
Ground
Not connected
Not connected
E777.01
PACKAGE
NC
1
DEV_SWITCH
2
I2C_ID_SWITCH
3
SCL
4
SDA/OW
5
EEPROM_VPROG
6
NC
7
DACOUT
8
16
NC
15
NC
14
GND
13
VDD
12
TM_EXTC
11
NC
10
SENSOR_EXTN
9
SENSOR_EXPT
Co-integrated pressure sensor
Also available
IC
Description
Pressure
range [bar]
777.06 777.01 + MEMS 1, 2, 4, 7
777.07 777.01 + MEMS 0.35
Application
gauge,
relative,
absolute
relative
Package
SO16 +
nozzle
SO16 +
nozzle
ASIC^plus SO16 package with nozzle
Note ELMOS Semiconductor AG (below ELMOS) reserves the right to make changes to the product contained in this publication without notice. ELMOS assumes no responsibility for the use of any
circuits described herein, conveys no licence under any patent or other right, and makes no representation that the circuits are free of patent infringement. While the information in this publication
has been checked, no responsibility, however, is assumed for inaccuracies. ELMOS does not recommend the use of any of its products in life support applications where the failure or malfunction of
the product can reasonably be expected to cause failure of a life-support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications.
Copyright © 2005 ELMOS Reproduction, in part or whole, without the prior written consent of ELMOS, is prohibited.
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elmos product catalog june 2005
81