MCP9600-E/MX

The Microchip Technology Inc. MCP960X/L0X/RL0X
converts thermocouple EMF to degree Celsius with
integrated cold-junction compensation. The
temperature correction coefficients are derived from
the National Institute of Standards and Technology
(NIST) ITS-90 Thermocouple Database. The
MCP9600/01 corrects the thermocouple nonlinear
error characteristics of eight thermocouple types and
outputs ±0.5°C/±1.5°C (Typ./Max.).
The MCP960X/L0X/RL0X digital Thermocouple
temperature converter comes with user-programmable
registers which provide design flexibility for various
temperature sensing applications. The registers allow
user-selectable settings, such as Low-Power modes
for battery powered applications, adjustable digital filter
for fast transient temperatures and four individually
programmable temperature alert outputs which can be
used to detect multiple temperature zones.
In addition, the MCP9601/L01/RL01 family provides
integrated thermocouple open-circuit and short-circuit
detection features. An alert signal is asserted when the
thermocouple wire is broken or disconnected. Similarly,
alert signal is asserted when the thermocouple is
shorted to ground or power.
The temperature alert limits have multiple
user-programmable configurations, such as alert
polarity as either an active-low or active-high push-pull
output, and output function as a Comparator mode
(useful for thermostat-type operation) or Interrupt mode
for microprocessor-based systems. In addition, the
alerts can detect either a rising or a falling temperature
with up to +255°C hysteresis.
This sensor uses an industry standard two-wire, I2C
compatible serial interface and supports up to eight
devices per bus by setting the device address using the
ADDR pin.