adc14c095 National Semiconductor Corporation, adc14c095 Datasheet - Page 4

• Manufacturer Part Number: adc14c095
• Description: 14-bit, 65/80/95/105 Msps A/d Converter
• Manufacturer: National Semiconductor Corporation

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ANALOG POWER
DIGITAL POWER
Pin Descriptions and Equivalent Circuits
Exposed
3, 8, 10,
Pin No.
4, 7, 9,
13-19,
23-29
Pad
21
20
22
D0–D13
Symbol
DRGND
AGND
DRDY
V
V
DR
A
Equivalent Circuit
4
Digital data output pins that make up the 14-bit conversion
result. D0 (pin 13) is the LSB, while D13 (pin 29) is the MSB of
the output word. Output levels are CMOS compatible.
Data Ready Strobe. The data output transition is synchronized
with the falling edge of this signal. This signal switches at the
same frequency as the CLK input.
Positive analog supply pins. These pins should be connected
to a quiet voltage source and be bypassed to AGND with 0.1
µF capacitors located close to the power pins.
The ground return for the analog supply.
Positive driver supply pin for the output drivers. This pin should
be connected to a quiet voltage source and be bypassed to
DRGND with a 0.1 µF capacitor located close to the power pin.
The ground return for the digital output driver supply. This pins
should be connected to the system digital ground, but not be
connected in close proximity to the ADC’s AGND pins.
(Continued)
Description