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ADS7816PC Datasheet(PDF) 13 Page - Texas Instruments

Part # ADS7816PC
Description  12-Bit High Speed Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
PDF  24 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

ADS7816PC Datasheet(HTML) 13 Page - Texas Instruments

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13
®
ADS7816
The ADS7816s and the DSP56004 can all be placed into a
power down mode. Or, the DSP56004 can run the ADS7816s
at a full 3.2MHz clock rate while on-board software enables
the ADS7816s as needed. With additional glue logic, the
DSP56004 could be used to run multiple DAC56s or provide
CS controls for each of the three ADS7816s.
FIGURE 7. Flexible Data Acquisition System.
Figure 8 shows a basic data acquisition system. The ADS7816
input range is 0V to 5V, as the reference input is connected
directly to the +5V supply. The 5
Ω to 10Ω resistor and 1µF
to 10
µF capacitor filter the microcontroller “noise” on the
supply, as well as any high-frequency noise from the supply
itself. The exact values should be picked such that the filter
provides adequate rejection of the noise.
FIGURE 8. Basic Data Acquisition System.
ADS7816
V
CC
CS
D
OUT
DCLOCK
V
REF
+In
–In
GND
+
+
5
Ω to 10Ω
1µF to
10µF
1µF to
10µF
0.1µF
Microcontroller
+5V
ADS7816
DSP56004
WST
SDO0
SDO1
SDO2
SCKT
SCKR
SDI0
SDI1
WSR
SCK/SCL
MISO/SDA
MOSI/HA0
HREQ
SS/HA2
CS
D
OUT
DCLOCK
V
REF
+In
–In
Serial Audio
Interface
Serial Host
Interface
ADS7816
CS
D
OUT
DCLOCK
V
REF
+In
–In
ADS7816
DAC56
CS
D
OUT
DCLOCK
V
REF
+In
–In
LE
CLK
DATA
V
OUT
+
10µF
0.1µF
+
10µF
0.1µF
+
10µF
0.1µF
10
Ω
10
Ω
10
Ω



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