EVAL-AD7708EBZ Analog Devices Inc, EVAL-AD7708EBZ Datasheet - Page 12

• Manufacturer Part Number: EVAL-AD7708EBZ
• Description: BOARD EVAL FOR AD7708
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD7708EBZ

• Number Of Adc's: 1
• Number Of Bits: 16
• Sampling Rate (per Second): 1.37k
• Data Interface: Serial
• Inputs Per Adc: 8 Single or 4 Differential
• Input Range: ±2.5 V
• Power (typ) @ Conditions: 3.84mW @ 3 V
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7708
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: EVAL-AD7708EB; EVAL-AD7708EB

EVAL-AD7708-EB
Fig. 10. The Mode Register Screen
voltage and power down the crystal oscillator. When the user selects a calibration the software will start a calibration
by writing to the AD7708 (prompt user for input if system calibration) and then monitor the
pin. A falling edge
of the
pin will indicate that the calibration has been completed. After a calibration the AD7708 is placed in the
idle mode and the screen is updated to indicate this. Everytime a change is made, the software writes the new conditions
to the AD7708 and then reads back from the Mode Register for conformation. The AD7708 should be powered-down
or placed in Idle Mode before writing to Filter, ADC Control or Calibration registers. The default status for the Mode
register is 00 hex - refer to AD7708 datasheets for more information.
The Status Register Screen
Fig. 11. shows the Status Register Screen. When the screen is loaded the software reads the current contents from
the Status Register of the AD7708 and sets the buttons accordingly. This is a read-only register and flags the operating
conditions of the AD7708 such as data ready or ADC Error. Refer to AD7708 datasheets for more information.
Fig. 11. The Status Register Screen
Rev. O
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