Details

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BUY AD7691BRMZ https://www.utsource.net/itm/p/11776288.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	VDD	2.7		5.25	V	Power supply voltage
Reference Input Voltage	VREF	0		5	V	External reference input voltage
Conversion Time	tCONV		4.8		渭s	Time to complete one conversion (at 2.7V)
Sampling Rate	fSAMP		200		kSPS	Maximum sampling rate
Input Range	VIN	0		5	V	Analog input range
Differential Nonlinearity	DNL	-0.5	0	+0.5	LSB	Maximum deviation from ideal step size
Integral Nonlinearity	INL	-3	0	+3	LSB	Maximum deviation from ideal transfer function
Offset Error	VOFF	-2	0	+2	mV	Maximum offset error
Gain Error	GERR	-0.1	0	+0.1	%	Maximum gain error
Temperature Coefficient	TCO	-5	0	+5	ppm/掳C	Change in offset and gain errors with temperature
Operating Temperature	TOPR	-40		125	掳C	Temperature range for operation
Storage Temperature	TSTG	-65		150	掳C	Temperature range for storage
Package Type					24-lead SSOP	Package type

Instructions for Using AD7691BRMZ

1. Power Supply:

   • Connect the power supply (VDD) to a stable voltage between 2.7V and 5.25V.
   • Ensure the ground (GND) is properly connected.

2. Reference Voltage:

   • Connect the reference input (VREF) to a stable voltage between 0V and 5V.
   • For best performance, use a low-noise reference source.

3. Analog Input:

   • Connect the analog input signal to the appropriate input pins (AIN0 to AIN3).
   • Ensure the input signal is within the specified range (0V to 5V).

4. Digital Interface:

   • Use the SPI interface for communication.
   • Connect the serial clock (SCLK), serial data out (SDO), and chip select (CS) pins to your microcontroller or digital system.
   • Set the chip select (CS) low to initiate communication.

5. Conversion:

   • Start a conversion by toggling the CS pin.
   • The conversion time is approximately 4.8 渭s at 2.7V supply.
   • Read the conversion result from the SDO pin.

6. Temperature Considerations:

   • Operate the device within the specified temperature range (-40掳C to 125掳C).
   • Store the device within the storage temperature range (-65掳C to 150掳C).

7. Calibration:

   • Perform system-level calibration to correct for offset and gain errors if necessary.
   • Use the provided DNL and INL specifications to ensure accurate measurements.

8. Handling and Storage:

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

By following these instructions, you can ensure optimal performance and reliability of the AD7691BRMZ.

(For reference only)