User manual

MCP3425 SOT23-6 Evaluation Board User’s Guide
DS51787A-page 20 © 2009 Microchip Technology Inc.
FIGURE 1-14: Reading Conversion Results: Note that the Input = 0.501V is applied at Ch.1. The
reading indicates the measured value is 0.501V. See Figure 1-15 for waveforms.
Requesting
4 Bytes
4th Byte: Repeated Byte for Configuration byte
3rd byte: Configuration Byte (note that RDYbit is “0”)
2nd byte: Data Byte
1st byte: Data Byte
Output code: 1F50 in hex ( = 8016 in decimal)
Output Voltage: 8016 x 62.5 µV (LSB) = 0.501V
Results:
(note that RDY bit returned to “1” after 4th byte)
* 1 LSB for 16 bit = 62.6 µV
* Input at CH1 = 0.501V
Note:
Requesting
4 Bytes
Reading Conversion
Data