Details

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BUY AD7730BRZ https://www.utsource.net/itm/p/12380094.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VDD	Operating	2.7		5.25	V
Reference Voltage	VREF	Internal	2.5			V
Input Bias Current	IB	Analog Inputs		10		nA
Input Offset Voltage	VOS	Analog Inputs		30		μV
Common Mode Rejection Ratio	CMRR	Differential Inputs		90		dB
Power Consumption	IDD	All channels powered down		6		μA
Conversion Rate	fCONV			20		SPS
Output Data Rate	ODR			20		SPS
Temperature Range	Toperating	Commercial, Industrial, Automotive	-40		125	°C

Instructions for AD7730BRZ

1. Power Supply and Reference Voltage:

   • Connect the supply voltage (VDD) within the range of 2.7V to 5.25V.
   • Use the internal reference voltage of 2.5V for analog-to-digital conversions.

2. Analog Input Configuration:

   • Ensure that the input bias current is minimized to avoid significant errors in measurements.
   • Keep the input offset voltage within specified limits to maintain accuracy.

3. Power Management:

   • When not in use, power down channels to reduce power consumption to approximately 6μA.

4. Conversion and Data Rate:

   • Set the conversion rate and output data rate to match your application requirements, typically up to 20 samples per second (SPS).

5. Operating Temperature:

   • Ensure the device operates within the temperature range of -40°C to +125°C, depending on the grade selected (commercial, industrial, or automotive).

6. Common Mode Rejection:

   • For differential inputs, take advantage of the high common mode rejection ratio (CMRR) to minimize noise interference.

7. Installation and Handling:

   • Follow standard ESD precautions during installation and handling to prevent damage to the component.

8. Communication Interface:

   • Configure the SPI interface as required for communication with the microcontroller or processor.

For detailed specifications and advanced configurations, refer to the official datasheet provided by Analog Devices.

(For reference only)