RHF1201_11 STMICROELECTRONICS [STMicroelectronics], RHF1201_11 Datasheet - Page 27
RHF1201_11
Manufacturer Part Number
RHF1201_11
Description
Rad-hard 12-bit 50 Msps A/D converter
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.RHF1201_11.pdf
(34 pages)
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RHF1201
7.5
Power consumption optimization
The internal architecture of the RHF1201 makes it possible to optimize the power
consumption according to the sampling frequency of the application. For this purpose, an
external R
total dissipation can be adjusted across the entire sampling range from 0.5 Msps to
50 Msps to fulfill the requirements of applications where power saving is critical.
For low sampling frequencies, the resistor value may be adjusted to decrease the analog
current without any deterioration of the dynamic performance.
The current consumption Icca, depending on the value of R
Figure 58. Rpol versus Fs
pol
resistor is placed between the IPOL pin and the analog ground. Therefore, the
100
10
0
10
Doc ID 12585 Rev 5
20
Sampling Frequency, Fs (MHz)
Electrical characteristics (unchanged after 300 kRad)
30
40
50
60
pol
, is as shown in
70
80
90
Figure
58.
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