Description
BUY MCP3204T-CI/ST https://www.utsource.net/itm/p/12608548.html
| Parameter |
Description |
Value |
| Device Type |
12-Bit A/D Converter with SPI Interface |
MCP3204T-CI/ST |
| Package Type |
SOIC-8 |
SOIC-8 |
| Operating Voltage (VDD) |
Supply voltage range |
2.7 V to 5.5 V |
| Resolution |
Number of bits |
12-bit |
| Input Type |
Analog input type |
Single-ended |
| Number of Channels |
Number of analog input channels |
4 |
| Interface |
Communication interface |
SPI |
| Conversion Time |
Maximum time for one conversion |
22 μs @ 4.9 MHz, 5 V |
| Throughput Rate |
Maximum conversions per second |
45.5 kSPS @ 4.9 MHz, 5 V |
| Input Range |
Analog input voltage range |
0 V to VREF |
| Reference Voltage (VREF) |
Reference voltage for analog input |
0 V to VDD |
| Power Consumption |
Active mode power consumption |
2.8 mW @ 5 V, 10 kSPS |
| Temperature Range |
Operating temperature range |
-40°C to +85°C |
Instructions for Use:
Power Supply:
- Connect the VDD pin to a supply voltage between 2.7 V and 5.5 V.
- Connect the VSS pin to ground.
Reference Voltage:
- The reference voltage can be set by connecting VREF to either VDD or an external reference voltage within the specified range.
SPI Interface Connection:
- Connect the CS (Chip Select), DIN (Data In), DOUT (Data Out), and SCK (Serial Clock) pins to the corresponding SPI lines of the microcontroller.
- Ensure that the CS pin is active low to initiate communication.
Configuration:
- Set up the SPI communication parameters:
- Mode 0 (CPOL = 0, CPHA = 0) or Mode 3 (CPOL = 1, CPHA = 1).
- Clock frequency should not exceed the maximum allowable for the desired throughput rate.
Reading Data:
- To start a conversion, bring the CS pin low.
- Send a start bit followed by configuration bits to select the channel and mode.
- After sending the configuration bits, read the data from the DOUT pin.
- Return CS high to end the conversion cycle.
Handling Conversion Results:
- The result will be available in binary format. Process this data according to your application requirements.
Power Management:
- For applications where power consumption is critical, consider using sleep modes or reducing the sampling rate as appropriate.
Layout Considerations:
- Keep analog and digital sections separate to avoid noise interference.
- Use decoupling capacitors close to the VDD pin to stabilize the power supply.
Ensure all connections are secure and follow good PCB layout practices to achieve optimal performance.
(For reference only)
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