ltc2415-1 Linear Technology Corporation, ltc2415-1 Datasheet - Page 11

• Manufacturer Part Number: ltc2415-1
• Description: 24-bit No Latency Delta Sigma Adc With Differential Input And Differential Reference
• Manufacturer: Linear Technology Corporation

PI FU CTIO S
F
controls the ADC’s notch frequencies and conversion
time. When the F
the converter uses its internal oscillator and the digital
filter first null is located at 50Hz. When the F
FU CTIO AL BLOCK DIAGRA
TEST CIRCUITS
O
U
(Pin 14): Frequency Control Pin. Digital input that
U
U
REF
REF
U
GND
V
IN
IN
CC
+
–
+
–
SDO
O
pin is connected to V
U
+
–
Hi-Z TO V
V
V
1.69k
OL
OH
TO V
TO Hi-Z
OH
OH
C
– +
LOAD
2415 TA03
DAC
= 20pF
CC
(LTC2415 only),
Figure 1. Functional Block Diagram
W
O
pin is
connected to GND (F
oscillator and the digital filter first null is located at 60Hz
(LTC2415) or simultaneous 50Hz/60Hz (LTC2415-1).
When F
frequency f
system clock and the digital filter first null is located at a
frequency f
ADC
O
is driven by an external clock signal with a
EOSC
EOSC
/2560.
LTC2415/LTC2415-1
, the converter uses this signal as its
AUTOCALIBRATION
DECIMATING FIR
AND CONTROL
SDO
O
= OV), the converter uses its internal
Hi-Z TO V
V
V
OH
OL
V
TO Hi-Z
TO V
CC
1.69k
C
OL
OL
LOAD
2415 TA04
= 20pF
OSCILLATOR
INTERFACE
INTERNAL
SERIAL
(INT/EXT)
F
SDO
SCK
CS
2415 FD
O
sn2415 24151fs
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