Below is the parameter table and instructions for the ADS7800JU, a 12-bit A/D converter with a serial interface.

ADS7800JU Parameter Table

ADS7800JU Instructions

1. Pin Configuration

• VCC: Power supply input.
• GND: Ground.
• VIN: Analog input.
• SCLK: Serial clock input.
• DIN: Data input.
• DOUT: Data output.
• CS: Chip select (active low).

2. Operation Sequence

1. Power-Up:

   • Apply the VCC and GND to the device.
   • Ensure that the analog input voltage (VIN) is within the range of 0 to VCC.

2. Initialization:

   • Set the chip select (CS) pin to high to keep the device in standby mode.
   • Set the serial clock (SCLK) to low.

3. Start Conversion:

   • Pull the CS pin low to activate the device.
   • The conversion starts automatically when CS goes low.

4. Data Read:

   • After the conversion time (tCONV), the data is ready.
   • Generate a series of clock pulses on SCLK to shift out the data from DOUT.
   • The data is read MSB first.

5. End Conversion:

   • After reading the data, pull the CS pin high to return the device to standby mode.

3. Timing Diagram

CS    ____________|_________________|_____________
SCLK  __|__|__|__|__|__|__|__|__|__|__|__|__|__|__
DOUT  _________XXXXXX_____________________________

• CS: Chip select signal.
• SCLK: Serial clock signal.
• DOUT: Data output signal.
• XXXXXX: Data bits being shifted out.

4. Example Code (Pseudocode)

// Initialize
VCC = 5.0V
GND = 0V
CS = HIGH
SCLK = LOW

// Start Conversion
CS = LOW

// Wait for conversion time (10 μs)
delay(10 μs)

// Read Data
for i = 0 to 11:
    SCLK = HIGH
    bit = read(DOUT)
    SCLK = LOW
    data[i] = bit

// End Conversion
CS = HIGH

This table and set of instructions should help you understand and use the ADS7800JU effectively.