EVAL-AD7656CBZ Analog Devices, EVAL-AD7656CBZ Datasheet - Page 19

• Manufacturer Part Number: EVAL-AD7656CBZ
• Description: Data Conversion IC Development Tools evaluation control board.
• Manufacturer: Analog Devices
• Type: ADCr

Specifications of EVAL-AD7656CBZ

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: AD7656
• Interface Type: Parallel, Serial
• Operating Supply Voltage: 12 V
• For Use With: EVAL-CONTROL-BRD2

Data Sheet
Figure 19 shows the power supply rejection ratio vs. supply
ripple frequency for the AD7656/AD7657/AD7658.
The power supply rejection ratio is defined as the ratio
of the power in the ADC output at full-scale frequency, f,
to the power of a 200 mV p-p sine wave applied to the
ADC’s V
where:
Pf is equal to the power at frequency f in the ADC output.
Pf
and V
S
is equal to the power at frequency f
PSRR (dB) = 10 log (Pf/Pf
SS
supplies.
DD
and V
SS
supplies of frequency f
S
)
S
coupled onto the V
S
DD
Rev. D | Page 19 of 32
Channel-to-Channel Isolation
Channel-to-channel isolation is a measure of the level of crosstalk
between any two channels. It is measured by applying a full-scale,
100 kHz sine wave signal to all unselected input channels and
determining the degree to which the signal attenuates in the
selected channel with a 30 kHz signal.
% FSR
%FSR is calculated using the full theoretical span of the ADC.
AD7656/AD7657/AD7658