Datasheet

AD8264
Rev. A | Page 32 of 40
INx
AGNDx
AVDDxDVDD
DGND
GNH1
GNH2
GNH3
GNH4
VNEG
VOCM
VOHx
VOLx
GNLO
VPOS
IPPx
OFSx
VGAx
ADC
AD9228
EVAL KIT
VPOS
VREF
PULSE
GENERATOR
VOLTAGE (V)
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0 50 100 150
SAMPLES
200 250 300
PARALLEL
INTERFACE
TO PC
CONTROL
REFIN
(ON BOARD)
INPUT EXAMPLES
USB 2.0 TO PC
ADI VISUAL
ANALOG
ANALYSIS
SOFTWARE
–INx
+INx
TO
SWITCHING
POWER
SUPPLY
+3.3V +3.3V
+3.3V –3.3V
+2.5V
VOUT0
VOUT1
VOUT3
VOUT4
VOUT39
V
OUT
RANGE = 0V TO 1.25V
EACH
AD8264 VGA
EVAL BOARD
DAC
AD5381
EVAL BOARD
TO 9
OTHER
AD8264s
GNLO = 625mV VOCM = 1.0VOFSx = −0.5V
+1.0V
VGA
OUTPUTS TO
OTHER
SIGNAL
PROCESSING
0V
–0.1V
07736-084
Figure 114. Evaluation Setup for DC-Coupled Analog Front-End Pulse Processing Application Using the AD8264
07736-085
Figure 115. AD5381 Evaluation Software
A convenient method of verifying and customizing the signal
chains shown in Figure 112 or Figure 113 is by ordering the
corresponding evaluation boards available on www.analog.com.
The AD8264-EVALZ is a platform through which the user can
quickly become familiar with the features and performance
capabilities of the AD8264. See the Evaluation Board section for
more information.
The E VA L -AD5381EB (40-channel DAC) includes a parallel PC
interface and software evaluation program to control the DAC.
The AD5381evaluation software allows the user to configure
and program such DAC parameters as input codes, offset level,
and output range based on a 2.5 V or 1.25 V reference. For
example, as shown in Figure 114, the reference can be set to 1.25 V,
with a 0 V to 1.25 V output range to drive the GNHx inputs.
The ADC evaluation kit includes the AD9228-65EBZ board and
HSC-ADC-FIFO5 board to decode the ADC output. It also
leverages the capabilities of VisualAnalog®, powerful simulation
and data analysis software that enables the user to run FFTs and
to do real-time capture of the output levels.