Details

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BUY AD7861APZ https://www.utsource.net/itm/p/12532754.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VDD	Normal Operation	4.75		5.25	V
Analog Input Voltage	VIN	Relative to GND	0		VREF	V
Reference Voltage	VREF	Internal	2.4	2.5	2.6	V
Conversion Time	tconv	Single Channel, 1 MSPS		3.2		μs
Power Consumption	IDD	All Channels Powered Down		10		μA
Output Data Rate	fODR	Continuous		1		MSPS
Differential Nonlinearity	DNL	Full Scale Range	-1		+1	LSB
Integral Nonlinearity	INL	Full Scale Range	-1		+1	LSB
Offset Error	VOS	@ TA = 25°C	-2		+2	mV
Gain Error	FG	@ TA = 25°C	-0.5		+0.5	% FS

Instructions for AD7861APZ

1. Power Supply:

   • Connect the VDD pin to a stable power supply within the range of 4.75V to 5.25V.
   • Ensure that the ground (GND) is properly connected.

2. Reference Voltage:

   • The internal reference voltage is typically 2.5V. If an external reference is used, ensure it is within the specified range of 2.4V to 2.6V.

3. Analog Inputs:

   • Apply analog input voltages between 0V and VREF relative to GND.
   • Avoid exceeding the input voltage limits to prevent damage.

4. Conversion Process:

   • Initiate conversions by setting up the control logic as per the data sheet.
   • Conversion time is approximately 3.2 microseconds at 1 MSPS.

5. Output Data:

   • The output data rate can be up to 1 MSPS in continuous mode.
   • Read the output data from the digital interface after conversion.

6. Power Management:

   • To reduce power consumption, power down unused channels.
   • In all channels powered down state, the device consumes approximately 10μA.

7. Linearity and Accuracy:

   • The device has a differential nonlinearity (DNL) and integral nonlinearity (INL) of ±1LSB, ensuring accurate conversions.
   • Calibrate the offset and gain errors if high accuracy is required.

8. Operating Temperature:

   • Ensure the device operates within the recommended temperature range to maintain performance specifications.

(For reference only)