AT84AD001BCTD ATMEL [ATMEL Corporation], AT84AD001BCTD Datasheet - Page 50

• Manufacturer Part Number: AT84AD001BCTD
• Description: Dual 8-bit 1 Gsps ADC
• Manufacturer: ATMEL [ATMEL Corporation]

Using the AT84AD001B Dual 8-bit 1 Gsps ADC
Decoupling, Bypassing
and Grounding of Power
Supplies
Figure 53. V
Figure 54. V
Note:
Figure 55. Power Supplies Decoupling Scheme
Note:
50
L and C values must be chosen in accordance with the operation frequency of the application.
The bypassing capacitors (1 µF and 100 pF) should be placed as close as possible to the board connectors, whereas the
decoupling capacitors (100 pF and 10 nF) should be placed as close as possible to the device.
PC Board 2.25V
AT84AD001B
PC Board GND
PC Board GND
PC Board 3.3V
CCD
CCO
and V
Bypassing and Grounding Scheme
GNDA
GNDD
VCCD
VCCA
CCA
Bypassing and Grounding Scheme
1µF
1µF
The following figures show the recommended bypassing, decoupling and grounding
schemes for the dual 8-bit 1 Gsps ADC power supplies.
100 pF
100 pF 10 nF
10 nF
100 pF
100 pF
VCCA
GNDA
GNDO
L
L
VCCO
L
C
C
100 pF 10 nF
C
VCCO
GNDO
VCCD
VCCA
VCCO
2153C–BDC–04/04