Datasheet

DAC1280
ADS1282
ADS1282
ADS1282
+5V
Reference
mController
or
FPGA
Serial
Flash
Memory
CLK/16
I/V
Converter
Switch
Network
Switch
Network
Switch
Network
Geophone
Geophone
Geophone
Serial
Bus
TDATA
4.096MHz
Clock
DAC1280
www.ti.com SBAS432A –APRIL 2010–REVISED SEPTEMBER 2010
Seismic System geophone or routed through an external switch
network. The DAC input signal is sourced from a
Figure 34 illustrates an example of a three-channel
bitstream pattern stored in the device flash memory
seismic measurement system that consists of the
(as shown here), or supplied directly from a bitstream
DAC1280 and three ADS1282s.
modulator implemented in an FPGA.
The DAC1280 drives the ADS1282s and the
geophone sensors for testing. The DAC signal can be
routed through the ADS1282 input mux to the
Figure 34. Three-Channel Seismic System Block Diagram
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