MLX90308CABL ETC1 [List of Unclassifed Manufacturers], MLX90308CABL Datasheet - Page 7

• Manufacturer Part Number: MLX90308CABL
• Description: Programmable Sensor Interface
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

Unique Features
Customization
Melexis can customize the MLX90308 in both
hardware and firmware for unique requirements.
Melexis can also provide all necessary development
tools for the development of special firmware to
customize the MLX90308. The hardware design
provides 64 bytes of RAM, 3 kbytes of ROM, and 48
bytes of EEPROM for use by the firmware.
Special Information
The output of the sensor bridge is amplified via offset
and gain amplifiers and then converted to the correct
output signal form in one of the output stages.
The sensitivity and offset of the analog signal chain
are defined by numbers passed to the DAC
interfaces from the microcontroller core (GN[9:0] and
OF[9:0]). The wide range of bridge offset and gain is
accommodated
adjustment DAC in the offset adjustment (CSOF
[1:0]), and a similar one in the gain adjustment
(CSGN[2:0]). The signal path can be directed
through the processor for digital processing. Two I/O
pins are available for analog inputs or digital outputs.
These pins can be used for alarms on various points
on the analog signal path and built-in or external
temperature values.
Programming and Setup
The
compensation coefficients programmed for a
particular bridge sensor to create the sensor
system. Programming the EEPROM involves
some
circuitry, Melexis’ setup software, and a PC.
The
available in a development board. This circuitry
communicates with the PC via a standard RS-
232 serial communications port.
Cross Reference
There are no known devices which the MLX
90308CAB can replace.
ESD Precautions
Observe standard ESD control procedures for CMOS
semiconductors.
MLX902xx Name of Sensor
MLX90308CAB Programmable Sensor Interface
communications
MLX90308
minimal
by
communications
means
needs
interface
of
to
a
2-bit coarse
circuitry
have
interface
the
is
Rev Y.X
Page 7
Programmable Sensor Interface
Table 2. Absolute Maximum Ratings
Supply voltage (ratiometric) V
Supply voltage (ratiometric) V
Supply voltage (operating), VDD1
Reverse voltage protection
Supply current, Current Mode, I
Supply current, Voltage Mode, I
Output current, I
Output current (short to V
Output current (short to V
Output voltage, V
Power dissipation, P
Operating temperature range, T
Storage temperature range, T
Maximum junction temperature, T
ESD sensitivity (Ratiometric Config)
OUT
OUT
22/Aug/98
MLX90308CAB
D
Rev 3.0 21/May/01
DD
SS
DD
DD
), I
), I
Min
Max
S
SC
SC
DD
DD
A
J
-40 to +140°
-55 to +150°
100mA
3.5mA
4.5mA
71mW
150°C
Page 7
-0.7V
+11V
4.5V
8mA
8mA
35V
2kV
6V