Details

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BUY PCF8591P,112 https://www.utsource.net/itm/p/831416.html
8-bit A/D and D/A converter - Application: Radio, Audio and CD/DVD Systems ; Converter type: Analog-to-Digital ; Function: Converters ; Number of bits: 8 ; Number of pins: 16 ; Operating temperature: -40~70 Cel; Operating/supply voltage MAX.-Vcc,Vp,VDD: 8 V; Vdd max.: 16; Package: SOT38-4 DIP16; Container: Bulk Pack

Parameter	Description	Value
Device	Analog-to-Digital Converter (ADC) with Digital-to-Analog Converter (DAC)	PCF8591P,112
Package	SOIC-8	-
Operating Voltage (VDD)	Supply Voltage Range	2.7 V to 6.0 V
I2C Bus Interface	Communication Protocol	I2C Compatible
ADC Resolution	Number of Bits	8-bit
DAC Resolution	Number of Bits	8-bit
Input Channels	Number of Analog Input Channels	4
Output Channel	Number of Analog Output Channels	1
Conversion Time (Typical)	Time for ADC Conversion	100 μs
Temperature Range	Operating Temperature	-40°C to +85°C
Power Consumption	Typical Power Consumption at 5 V	3.5 mA

Instructions

1. Power Supply:

   • Connect VDD to the positive supply voltage (2.7 V to 6.0 V).
   • Connect VSS to ground.

2. I2C Bus Connection:

   • Connect SDA (Serial Data) to the I2C data line.
   • Connect SCL (Serial Clock) to the I2C clock line.
   • Ensure pull-up resistors are connected to both SDA and SCL lines.

3. Analog Input Channels:

   • Connect the analog signals to be measured to the input channels AIN0, AIN1, AIN2, and AIN3.
   • The input range is typically 0 V to VDD.

4. Analog Output Channel:

   • The DAC output can be accessed through the AOUT pin.
   • The output range is 0 V to VDD.

5. Configuration:

   • Use the I2C commands to configure the ADC and DAC operations.
   • The device address is 0x48 (default).

6. Reading ADC Values:

   • Send a start condition followed by the device address and a write command.
   • Write the control byte to select the channel and mode.
   • Send a repeated start condition followed by the device address and a read command.
   • Read the 8-bit ADC value from the data register.

7. Writing DAC Values:

   • Send a start condition followed by the device address and a write command.
   • Write the control byte to select the DAC mode.
   • Write the 8-bit DAC value to the data register.

8. Interrupt Handling:

   • The device does not have an interrupt output. Use polling or timer-based methods to manage conversions.

9. Power Management:

   • To reduce power consumption, ensure that the device is powered down when not in use.

10. Handling and Storage:

    • Store the device in a dry environment to prevent moisture damage.
    • Handle with care to avoid static discharge which can damage the device.

(For reference only)