AD7865BS-2: Top Choice in United States (USA) Utsource Holding Company Limited

Description

Parameter	Description	Min	Typ	Max	Unit
Supply Voltage (VDD)	Operating supply voltage	4.75		5.25	V
Input Voltage Range	Analog input voltage range	0		VREF	V
Conversion Time	Time to convert one channel		8		μs
Power Consumption	Total power consumption in normal mode		130		mW
Differential Nonlinearity	Maximum deviation from ideal step size between any two adjacent codes		±1		LSB
Integral Nonlinearity	Deviation of the actual transfer function from the ideal		±2		LSB
Offset Error	Difference between the actual and ideal output when input is zero		±2		LSB
Gain Error	Ratio of actual full-scale range to theoretical full-scale range		±2		% FS
Channel-to-Channel Isolation	Maximum leakage between channels		80		dB
Common Mode Rejection Ratio	Ability to reject common-mode signals		90		dB
Signal-to-Noise Ratio	Ratio of signal power to noise power		90		dB

Power Supply Configuration:
- Connect the VDD pin to a stable 5V power supply within the specified range of 4.75V to 5.25V.
- Ensure adequate decoupling capacitors are placed close to the power pins.
Reference Voltage Setup:
- Connect the reference voltage (VREF) as per your application requirements. The input voltage range is from 0V to VREF.
Input Signal Connection:
- Connect analog signals to the input channels ensuring they do not exceed the specified input voltage range.
Conversion Control:
- Use the appropriate control signals (CONVST, CS, SCLK, SDI, and SDO) to initiate conversions and read data.
- Ensure timing specifications for these control signals are strictly adhered to for reliable operation.
Output Data Handling:
- After initiating a conversion, wait for the conversion time (typically 8μs) before reading the output data via the serial interface.
Power Down Mode:
- To reduce power consumption, use the power-down feature by setting the appropriate configuration bits.
Handling Multiple Channels:
- For multi-channel applications, configure the channel selection according to the datasheet guidelines to ensure accurate sequential conversions.
Calibration:
- Perform system-level calibration if necessary to correct for offset and gain errors, improving overall accuracy.
Environmental Considerations:
- Operate the device within the recommended temperature range and avoid exposing it to excessive humidity or contaminants.

Note: Always refer to the official datasheet for detailed specifications and advanced configurations.

(For reference only)