BUY AD7226KNZ https://www.utsource.net/itm/p/836726.html
The AD7226KNZ is an 8-bit voltage-output Digital-to-analog Converter with output buffer amplifiers and interface logic on a single monolithic chip. No external trims are required to achieve full specified performance for the part. Data is transferred into one of these data latches through a common 8-bit TTL/CMOS (5V) compatible input port. Control inputs A0 and A1 determine which DAC is loaded when WR goes low. The control logic is speed-compatible with most 8-bit microprocessors. The amplifier offset is laser-trimmed during manufacture, thereby eliminating any requirement for offset nulling. Specified performance is guaranteed for input reference voltages from 2 to 12.5V with dual supplies. It is fabricated in an all ion-implanted high speed Linear Compatible CMOS process, which has been specifically developed to allow high speed digital logic circuits and precision analog circuits to be integrated on the same chip.

Parameter	Symbol	Min	Typical	Max	Unit	Description
Supply Voltage	VDD	4.5		5.5	V	Power supply voltage
Output Voltage Range	VOUT	0		VDD	V	Analog output voltage range
Output Current	IOUT		10		mA	Maximum output current
Resolution			12-bit		bits	Digital-to-Analog conversion resolution
Integral Nonlinearity	INL	-1	0	+1	LSB	Linearity error
Differential Nonlinearity	DNL	-1	0	+1	LSB	Step size error
Settling Time	tS		10		μs	Time to settle within 1/2 LSB
Power Consumption	IDD		20		mA	Supply current at VDD = 5V, all outputs active
Operating Temperature	Toperating	-40		85	°C	Operating temperature range
Storage Temperature	Tstorage	-65		150	°C	Storage temperature range

Instructions for Use

1. Power Supply:

   • Connect the VDD pin to a stable power supply between 4.5V and 5.5V.
   • Connect the GND pin to the ground.

2. Digital Interface:

   • The AD7226KNZ uses a parallel interface for digital communication.
   • Connect the data lines (D0-D11) to your microcontroller or digital system.
   • Ensure that the chip select (CS), write enable (WE), and address lines (A0-A1) are properly configured.

3. Output Configuration:

   • The device has four independent DAC channels (CH0-CH3).
   • Each channel can be configured independently by writing to the corresponding register.
   • The output voltage is proportional to the digital input value and the supply voltage.

4. Programming:

   • Write the desired digital value to the selected channel using the parallel interface.
   • The digital value should be a 12-bit number (0 to 4095).
   • Use the CS and WE signals to control the data transfer.

5. Calibration:

   • Perform a one-time calibration to ensure accuracy.
   • Use the internal reference or an external reference for calibration.

6. Power Management:

   • To reduce power consumption, disable unused channels by setting their outputs to a high-impedance state.
   • Use the power-down mode if the device is not in use for extended periods.

7. Thermal Considerations:

   • Ensure adequate heat dissipation if operating at high output currents or in high ambient temperatures.
   • Use a heatsink or thermal pad if necessary.

8. Handling:

   • Handle the device with care to avoid static damage.
   • Follow ESD (Electrostatic Discharge) precautions during handling and installation.

For detailed information, refer to the AD7226KNZ datasheet and application notes provided by Analog Devices.

(For reference only)