MLX90314

Programmable Sensor Interface

3901090314

Rev 008

Page 1

Apr/12

Features and Benefits

Applications

Ordering Code

Product Code

Temperature Code

Package Code

Option Code

Packing Form Code

MLX90314

L

DF

BAA-000

TU

MLX90314

L

DF

BAA-000

RE

Legend:

Temperature Code:

L for Temperature Range -40°C to 150°C

Package Code:

DF for SOIC300Mil

Packing Form:

RE for Reel, TU for Tube

Ordering example:

MLX90314LDF-BAA-000-TU

Description

The MLX90314 is a dedicated microcontroller which performs signal conditioning for sensors wired in bridge or

differential configurations. Sensors that can be used include thermistors, strain gauges, load cells, pressure

sensors, accelerometers, etc. The signal conditioning includes gain adjustment, offset control, high order

temperature and linearity compensation. Compensation values are stored in EEPROM and are

re-

programmable. Programming is accomplished by using a PC, with an interface circuit (level shifting and glue

logic), and provided software.

The application circuits can provide an output of an absolute voltage, relative voltage, or current. The output can

be range limited with defined outputs when the

signal is beyond the programmed limits. Other

features

include

alarm

outputs

and

level

steering. The robust electrical design allows

the MLX90314 to be used where most signal

conditioning and

sensor

interface

circuits

cannot be used. Voltage regulation control is

provided for absolute voltage and current

modes (external FET required).

The standard package is a plastic SO16W. The

device is static-sensitive and requires ESD

precautions.