LTC2366 Linear Technology, LTC2366 Datasheet - Page 9

• Manufacturer Part Number: LTC2366
• Description: (LTC2365 / LTC2366) 12-Bit Serial Sampling ADCs
• Manufacturer: Linear Technology

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PIN FUNCTIONS
LTC2365/LTC2366 (S6 Package)
V
3.6V. V
V
10μF ceramic capacitor (or 10μF tantalum in parallel with
0.1μF ceramic).
GND (Pin 2): Ground. The GND pin must be tied directly
to a solid ground plane.
A
respect to GND with a range from 0V to V
SCK (Pin 4): Shift Clock Input. The SCK serial clock ad-
vances the conversion process. SDO data transitions on
the falling edge of SCK.
SDO (Pin 5): Three-state Serial Data Output. The A/D
conversion result is shifted out on SDO as a serial data
stream with MSB fi rst. The data stream consists of two
leading zeros followed by 12 bits of conversion data and
two trailing zeros.
CS (Pin 6): Chip Select Input. This active low signal starts
a conversion on the falling edge and frames the serial
data transfer.
DD
DD
IN
(Pin 3): Analog Input. A
. Bypass to GND and to a solid ground plane with a
(Pin 1): Positive Supply. The V
DD
also defi nes the input span of the ADC, 0V to
IN
is a single-ended input with
DD
range is 2.35V to
DD
.
LTC2365/LTC2366 (TS8 Package)
V
3.6V. Bypass to GND and to a solid ground plane with a
10μF ceramic capacitor (or 10μF tantalum in parallel with
0.1μF ceramic).
V
span of the ADC, 0V to V
to V
a 4.7μF ceramic capacitor (or 4.7μF tantalum in parallel
with 0.1μF ceramic).
GND (Pin 3): Ground. The GND pin must be tied directly
to a solid ground plane.
A
respect to GND with a range from 0V to V
OV
range is 1V to 3.6V. Bypass to GND and to a solid ground
plane with a 4.7μF ceramic capacitor (or 4.7μF tantalum
in parallel with 0.1μF ceramic).
SDO (Pin 6): Three-state Serial Data Output. The A/D
conversion result is shifted out on SDO as a serial data
stream with MSB fi rst. The data stream consists of two
leading zeros followed by 12 bits of conversion data and
two trailing zeros.
SCK (Pin 7): Shift Clock Input. The SCK serial clock ad-
vances the conversion process. SDO data transitions on
the falling edge of SCK.
CS (Pin 8): Chip Select Input. This active low signal starts
a conversion on the falling edge and frames the serial
data transfer.
DD
REF
IN
DD
(Pin 4): Analog Input. A
DD
(Pin 1): Positive Supply. The V
(Pin 2): Reference Input. V
(Pin 5): Output Driver Supply for SDO. The OV
. Bypass to GND and to a solid ground plane with
LTC2365/LTC2366
REF
IN
and the V
is a single-ended input with
REF
DD
defi nes the input
range is 2.35V to
REF
REF
range is 1.4V
.
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9
DD