Details

---

BUY AD7821KN https://www.utsource.net/itm/p/1100456.html
LC2MOS High Speed, mP-Compatible 8-Bit ADC with Track/Hold Function

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VDD		4.5	5.0	5.5	V
Supply Current	IDD			1.5	3.0	mA
Analog Input Range	VIN		0		VDD	V
Resolution				12		bits
Conversion Time	tCONV			16		μs
Differential Nonlinearity (DNL)	DNL		-1	0	+1	LSB
Integral Nonlinearity (INL)	INL		-2	0	+2	LSB
Offset Error	VOFF		-2	0	+2	mV
Gain Error	GERR		-0.5	0	+0.5	% FS
Temperature Coefficient	TCO		-10	0	+10	ppm/°C
Operating Temperature	TOPR		-40		+85	°C
Storage Temperature	TSTG		-65		+150	°C

Instructions for Use

1. Power Supply:

   • Ensure the supply voltage (VDD) is within the specified range of 4.5V to 5.5V.
   • The supply current (IDD) should be between 1.5mA and 3.0mA.

2. Analog Input:

   • The analog input voltage (VIN) must be within the range of 0V to VDD.

3. Resolution:

   • The AD7821KN has a 12-bit resolution.

4. Conversion Time:

   • The typical conversion time is 16 μs.

5. Linearity:

   • Differential Nonlinearity (DNL) should be within ±1 LSB.
   • Integral Nonlinearity (INL) should be within ±2 LSB.

6. Error Specifications:

   • Offset Error (VOFF) should be within ±2 mV.
   • Gain Error (GERR) should be within ±0.5% of full scale.

7. Temperature Coefficient:

   • The temperature coefficient (TCO) should be within ±10 ppm/°C.

8. Operating and Storage Temperature:

   • The operating temperature (TOPR) range is from -40°C to +85°C.
   • The storage temperature (TSTG) range is from -65°C to +150°C.

9. Handling and Storage:

   • Store the device in a dry, cool place to avoid damage.
   • Handle with care to prevent static discharge and physical damage.

10. Application Notes:

    • Refer to the datasheet for detailed application notes and circuit diagrams.
    • Ensure proper decoupling capacitors are used to stabilize the power supply and reduce noise.

For more detailed information, refer to the official AD7821KN datasheet provided by Analog Devices.

(For reference only)