MCP355XDV-MS1 Microchip Technology, MCP355XDV-MS1 Datasheet - Page 12

• Manufacturer Part Number: MCP355XDV-MS1
• Description: BOARD DEV SENSOR APP MCP355X
• Manufacturer: Microchip Technology

Specifications of MCP355XDV-MS1

• Number Of Adc's: 1
• Number Of Bits: 22
• Data Interface: Serial
• Inputs Per Adc: 1 Differential
• Input Range: ±0.3 V
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 125°C
• Utilized Ic / Part: MCP355x
• Processor To Be Evaluated: MCP355x
• Interface Type: RS-232, USB
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

MCP355X Sensor Application Developer’s Board User’s Guide
TABLE 2-1:
2.2
DS51609A-page 8
Note 1:
Direct Connection (No Gain)
SENSOR INPUT CONNECTIONS
Channel 1
Channel 2
Higher resolution systems are possible with averaging and other design approaches, table only serves as
an example. Sensor used for these results was a 200 kg external load cell. Amplifier used in Channel 1
was MCP617 device. Amplifier used in Channel 2 was CS3002. All results using MCP3551 A/D Converter.
Channel
MCP355X SENSOR APPLICATION DEVELOPER’S BOARD CHANNEL
PERFORMANCE EXAMPLE RESULTS (NOTE 1)
The following table shows example noise results of the two different channels.
There are three connectors located on the right hand side of the board for external
sensor input. The first is a standard DB9 connector that goes to a dual row 10-pin
header. Jumper wires must be used to connect the output of the header to the 12-pin
dual row headers going into either of the differential gain circuits described below.
In addition, there are two 3-terminal screw connectors, AUX1 and AUX2. These
connectors go directly into the right hand side of the 40-pin dual row connector P8.
FIGURE 2-2:
Note:
TO CHANNEL 1
TO CHANNEL 2
Analog Input Headers To Signal
Conditioning Circuits
Connector P6 is the input for channel 1, and P7 is the input for channel 2.
Depending on which sensor inputs (AUX1, AUX2, or the DB9 connector) are
used to connect the external sensor to either channel, jumper wires must be
connected to bring the input into either P6 or P7.
Effective Number of Bits
P6
P7
(ENOB)
Sensor Input Connections.
15.8
18.8
13
-SENSE
-IN
-OUT
+OUT
+IN
+SENSE
-SENSE
-IN
-OUT
+OUT
+IN
+SENSE
JUMPER WIRES
(NOT INCLUDED)
“Noise-free” ENOB
13.1
16.1
10.4
© 2006 Microchip Technology Inc.
Headers Supplied For External
P9
P10
P3
Sensor Connection
Resolution”
“Noise-free
5
9
4
8
3
7
2
6
1
70,000:1
8,800:1
1,350:1
J4