MCP3421EV Microchip Technology, MCP3421EV Datasheet - Page 24

• Manufacturer Part Number: MCP3421EV
• Description: BOARD EVAL FOR MCP3421 SOT23-6
• Manufacturer: Microchip Technology

Specifications of MCP3421EV

• Design Resources: MCP3421EV Gerber Files
• Number Of Adc's: 1
• Number Of Bits: 18
• Sampling Rate (per Second): 4
• Data Interface: Serial
• Inputs Per Adc: 1 Single Ended
• Input Range: ±2.5 V
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 125°C
• Utilized Ic / Part: MCP3421
• Silicon Manufacturer: Microchip
• Application Sub Type: ADC
• Kit Application Type: Data Converter
• Silicon Core Number: MCP3421
• Kit Contents: Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Not applicable / Not applicable

MCP3421 SOT23-6 Evaluation Board User’s Guide
Requesting
5 Bytes
Reading Conversion
Data
5th Byte: Repeated Byte for Configuration byte
(note that RDY bit returned to “1” after 4th byte)
4th byte: Configuration Byte (note that RDYbit is “0”)
3rd byte: Data Byte
2nd byte: Data Byte
1st byte: Data Byte
Results:
Output code: 101AD in hex (= 65965 in decimal)
Output Voltage: 65865 x 15.625 mV (LSB) = 1.0307 V with PGA = 1
PGA
Note:
* 1 LSB with 18 bit resolution option: 15.625 µV
FIGURE 1-14:
Reading Conversion Results: Note that the single ended Input = 1.0307V is applied at
Ch.1. The reading indicates the measured value is 1.0307V. See Figure 1-15 for waveforms.
© 2009 Microchip Technology Inc.
DS51793A-page 20