ADS8482 Datasheet, PDF (23/31 Pages) Burr-Brown (TI) – 18-BIT, 1-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE, REFERENCE

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ADS8482
SLAS386A – JULY 2005 – REVISED JUNE 2006
PRINCIPLES OF OPERATION (continued)
+12 V
1 mF
+VIN
+2.048 V
300 W
THS4031
1 mF ^{1 mF}
AP Cascade
Two System
AP Cascade Two System
Pattern Generator Platform
f_i = 1 kHz
SNR: 99 dB
SINAD: 99 dB
THD: -121 dB
SFDR: 123 dB
ENOB(SINAD): 16.15
-VIN
300 W
+2.048 V
-12V
300 W
300 W
+12V
1 mF
THS4031
1 mF
1 mF
12 W
12 W
(+)IN
2200 pF
(-)IN
-12 V
Figure 40. Differential Input, Differential Output Configuration
DIGITAL INTERFACE
Timing and Control
See the timing diagrams in the specifications section for detailed information on timing signals and their
requirements.
The ADS8482 uses an internal oscillator generated clock which controls the conversion rate and in turn the
throughput of the converter. No external clock input is required.
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