EVAL-AD7687CB Analog Devices Inc, EVAL-AD7687CB Datasheet - Page 4

• Manufacturer Part Number: EVAL-AD7687CB
• Description: BOARD EVAL FOR AD7687
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of EVAL-AD7687CB

• Number Of Adc's: 1
• Number Of Bits: 16
• Sampling Rate (per Second): 250k
• Data Interface: Serial
• Inputs Per Adc: 1 Differential
• Input Range: ±VREF
• Power (typ) @ Conditions: 4mW @ 5 V, 100kSPS
• Voltage Supply Source: Single
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7687
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q2106448

EVAL-AD76XXCB 8/10-Pin
advised to filter the signal to make the DC Source noise
compatible with that of the ADC. C26 and C41 provide this
filtering.
AC Testing
To perform an AC test, apply a sinusoidal signal to the
evaluation board. Low distortion, better than 100dB, is required
to allow true evaluation of the part. One possibility is to filter
the input signal from the AC source. There is no suggested
band-pass filter but consideration should be taken in the choice.
Decimated Testing (Averaging)
This test can be run with a shorted input to evaluate dynamic
range or as the AC test.
Setup Requirements
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EVAL-CONTROL BRDx (ADSP2189)
EVAL-AD76XXCB 8/10-Pin evaluation board
Power supply (AC 12V/1A source could be bought from
Analog Devices – sold separately from the EVAL-
CONTROL BRDx)
Parallel port cable (provided with the evaluation control
board)
AC source (low distortion)
DC source (low noise)
Band-pass filter (value based on the signal frequency, low
distortion)
Rev. Pr G | Page 4 of 18
Use as a Standalone Evaluation Board
You have the option of using the evaluation board as a stand-
alone. This method does not require the EVAL-CONTROL
BRDx, nor does it require use of the accompanied software. The
ADC serial interface signals are available on P1 (26-pin
connector).
Preliminary Technical Data