MCP3423-E/UN Microchip Technology, MCP3423-E/UN Datasheet - Page 36

• Manufacturer Part Number: MCP3423-E/UN
• Description: IC ADC 18BIT 3.75SPS 2CH 10-MSOP
• Manufacturer: Microchip Technology

Specifications of MCP3423-E/UN

• Data Interface: I²C, Serial
• Number Of Bits: 18
• Sampling Rate (per Second): 3.75
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 10-TFSOP (0.118", 3.00mm Width)
• Resolution (bits): 18bit
• Sampling Rate: 3.75SPS
• Input Channel Type: Differential
• Supply Voltage Range - Analog: 2.7V To 5.5V
• Supply Current: 145µA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP3423EV - BOARD EVAL 18BIT 2CH ADC MCP3423
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

MCP3422/3/4
EQUATION 6-3:
The thermistor temperature sensor can measure the
temperature range from -100°C to 300°C. The resis-
tance of the thermistor sensor decreases as tempera-
ture increases (negative temperature coefficient). As
shown in
voltage divider with R
The thermistor sensor is simple to use and widely used
for the temperature measurement applications. It has
both linear and non-linear responses over temperature
range. R
for measurement.
DS22088B-page 36
Where:
1 LSB = 15.625 µV with 18 Bit configuration.
Expected
Number of Output Code =
1
is used to adjust the linear region of interest
Figure
6-7, the thermistor (R
1
.
EXPECTED NUMBER OF
OUTPUT CODE FOR
NPP301 PRESSURE
SENSOR
= 12.64 bits for PGA = 1
= 13.64 bits for PGA = 2
= 14.64 bits for PGA = 4
= 15.64 bits for PGA = 8
log
2
⎛
⎜
⎜
⎝
----------------------- -
15.625μV
----------------------- -
100 mV
PGA
2
) forms a
⎞
⎟
⎟
⎠
© 2008 Microchip Technology Inc.