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ADC12L063 Fiches technique(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
No de pièce ADC12L063
Description  12-Bit, 62 MSPS, 354 mW A/D Converter with Internal Sample-and-Hold
Download  22 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

ADC12L063 Fiches technique(HTML) 4 Page - National Semiconductor (TI)

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Pin Descriptions and Equivalent Circuits (Continued)
Pin No.
Symbol
Equivalent Circuit
Description
14–19,
22–27
D0–D11
Digital data output pins that make up the 12-bit conversion
results. D0 is the LSB, while D11 is the MSB of the offset
binary output word.
ANALOG POWER
5, 6, 29
V
A
Positive analog supply pins. These pins should be connected
to a quiet +3.3V source and bypassed to AGND with 0.1 µF
monolithic capacitors located within 1 cm of these power pins,
and with a 10 µF capacitor.
4, 7, 28
AGND
The ground return for the analog supply.
DIGITAL POWER
13
V
D
Positive digital supply pin. This pin should be connected to
the same quiet +3.3V source as is V
A and bypassed to
DGND with a 0.1 µF monolithic capacitor in parallel with a 10
µF capacitor, both located within 1 cm of the power pin.
Decouple this pin from the V
A pins.
9, 12
DGND
The ground return for the digital supply.
21
V
DR
Positive digital supply pin for the ADC12L063’s output drivers.
This pin should be connected to a voltage source of +2.5V to
V
D and bypassed to DR GND with a 0.1 µF monolithic
capacitor. If the supply for this pin is different from the supply
used for V
A and VD, it should also be bypassed with a 10 µF
tantalum capacitor. The voltage at this pin should never
exceed the voltage on V
D. All bypass capacitors should be
located within 1 cm of the supply pin.
20
DR GND
The ground return for the digital supply for the ADC12L063’s
output drivers. This pin should be connected to the system
digital ground, but not be connected in close proximity to the
ADC12L063’s DGND or AGND pins. See Section 5.0 (Layout
and Grounding) for more details.
www.national.com
4


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