Microchip Technology MCP3421 SOT23-6, Руководство пользователя

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