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BUY AD7714AR-5 https://www.utsource.net/itm/p/1117295.html
Metal Oxide Varistor MOV; Voltage Rating AC, Vrms:680Vrms; Voltage Rating DC, Vdc:895VDC; Peak Surge Current 8/20uS, Itm:4500A; Clamping Voltage 8/20us Max :1815V; Capacitance, Cd:140pF; Package/Case:14mm Disc
Below is the parameter table and instructions for the AD7714AR-5, a 24-bit, sigma-delta analog-to-digital converter (ADC) from Analog Devices.
AD7714AR-5 Parameter Table
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | VDD | 2.7 | 5.25 | 5.25 | V |
| Supply Current (Active) | IDD | - | 1.8 | - | mA |
| Supply Current (Standby) | IDD | - | 0.5 | - | μA |
| Input Range | VIN | 0 | - | VREF | V |
| Reference Voltage | VREF | 2.5 | 5.0 | - | V |
| Resolution | - | 24 | - | bits | |
| Conversion Time (Single) | tCONV | - | 133 | - | ms |
| Output Data Rate | fODR | 0.1 | 100 | 19200 | Hz |
| Differential Nonlinearity | DNL | -1 | 0 | +1 | LSB |
| Integral Nonlinearity | INL | -2 | 0 | +2 | LSB |
| Signal-to-Noise Ratio | SNR | - | 110 | - | dB |
| Total Harmonic Distortion | THD | - | -100 | - | dB |
| Operating Temperature | Toper | -40 | 85 | 125 | °C |
| Storage Temperature | Tstg | -65 | 150 | - | °C |
Instructions for Using AD7714AR-5
Power Supply:
- Connect the VDD pin to a stable power supply between 2.7V and 5.25V.
- Connect the GND pin to the system ground.
Reference Voltage:
- Apply a reference voltage (VREF) between 2.5V and 5.0V to the VREF pin. This reference voltage determines the input range of the ADC.
Analog Input:
- Connect the analog signal to be converted to the appropriate input pins (AIN1, AIN2, etc.). The input signal should be within the range of 0 to VREF.
Digital Interface:
- The AD7714AR-5 supports SPI (Serial Peripheral Interface) communication. Connect the following pins:
- SCLK: Serial Clock
- DIN: Data In
- DOUT: Data Out
- CS: Chip Select
- The AD7714AR-5 supports SPI (Serial Peripheral Interface) communication. Connect the following pins:
Configuration:
- Use the configuration registers to set up the ADC according to your requirements. Key registers include:
- Mode Register: Sets the operating mode (e.g., single conversion, continuous conversion).
- Setup Register: Configures the input channel, gain, and filter settings.
- Data Register: Reads the converted data.
- Use the configuration registers to set up the ADC according to your requirements. Key registers include:
Conversion:
- To start a conversion, write the appropriate command to the Mode Register.
- For single conversions, wait for the conversion to complete before reading the data.
- For continuous conversions, data can be read at the specified output data rate.
Reading Data:
- After a conversion is complete, read the data from the Data Register using the SPI interface.
- The data is 24 bits long and is transmitted MSB first.
Power Management:
- To reduce power consumption, use the Standby mode by writing to the appropriate register.
- To return to active mode, write the appropriate command to the Mode Register.
Temperature Considerations:
- Ensure that the operating temperature is within the specified range (-40°C to 125°C).
- Store the device within the storage temperature range (-65°C to 150°C).
Handling:
- Handle the device with care to avoid static discharge and physical damage.
- Follow proper ESD (Electrostatic Discharge) precautions when handling the device.
By following these instructions, you can effectively use the AD7714AR-5 in your analog-to-digital conversion applications.
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