Details

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BUY AD7714AN-5 https://www.utsource.net/itm/p/12607840.html

Parameter	Description	Min	Typ	Max	Unit
Supply Voltage (VDD)	Operating supply voltage range	2.7	-	5.25	V
Supply Current	Typical supply current at 3 V, 1 MSPS	-	0.8	-	mA
Input Voltage Range	Differential input voltage range	-0.5	-	VDD + 0.5	V
Input Bias Current	Maximum input bias current	-	5	-	nA
Common Mode Rejection Ratio (CMRR)	CMRR at 60 Hz	90	-	-	dB
Power-Down Mode Current	Typical current in power-down mode	-	0.5	-	渭A
Output Data Rate	Configurable output data rate	1.95	-	19.2	kSPS
Resolution	Effective number of bits (ENOB) at 19.2 kSPS	-	16	-	bits
Integral Nonlinearity (INL)	INL over full scale	-	卤1	-	LSB
Differential Nonlinearity (DNL)	DNL over full scale	-	卤1	-	LSB
Temperature Range	Operating temperature range	-40	-	85	掳C

Instructions for Using AD7714AN-5

1. Power Supply:

   • Ensure the supply voltage (VDD) is within the specified range of 2.7 V to 5.25 V.
   • Connect a stable power supply to the VDD and GND pins.

2. Input Configuration:

   • Connect the differential input signals to the IN+ and IN- pins.
   • Ensure the input voltage range does not exceed -0.5 V to VDD + 0.5 V.
   • Use the appropriate input bias current considerations to avoid loading the signal source.

3. Output Data Rate:

   • Configure the output data rate using the control registers. The AD7714AN-5 supports rates from 1.95 kSPS to 19.2 kSPS.
   • Higher data rates may reduce resolution and increase power consumption.

4. Power-Down Mode:

   • To reduce power consumption, use the power-down mode by setting the appropriate control register bit.
   • In power-down mode, the device consumes approximately 0.5 渭A.

5. Temperature Considerations:

   • Ensure the operating temperature remains within the specified range of -40掳C to 85掳C to maintain performance specifications.

6. Common Mode Rejection:

   • The AD7714AN-5 provides a CMRR of 90 dB at 60 Hz, which helps in rejecting common-mode noise.

7. Nonlinearity:

   • The device has an integral nonlinearity (INL) and differential nonlinearity (DNL) of 卤1 LSB over the full scale, ensuring accurate conversion.

8. Resolution:

   • The effective number of bits (ENOB) at the maximum output data rate of 19.2 kSPS is 16 bits.

9. Communication:

   • Use the SPI interface to communicate with the AD7714AN-5. Refer to the datasheet for detailed SPI communication protocols and register maps.

10. Layout Considerations:

    • Place the AD7714AN-5 close to the signal source to minimize noise pickup.
    • Use bypass capacitors (e.g., 0.1 渭F and 10 渭F) near the VDD pin to ensure stable power supply.

For more detailed information, refer to the AD7714AN-5 datasheet and application notes provided by Analog Devices.

(For reference only)