Datasheet

LTC2444/LTC2445/
LTC2448/LTC2449
8
2444589fc
For more information www.linear.com/LTC2444
AUTOCALIBRATION
AND CONTROL
DIFFERENTIAL
3RD ORDER
∆∑ MODULATOR
DECIMATING FIR
ADDRESS
INTERNAL
OSCILLATOR
SERIAL
INTERFACE
GND
V
CC
CH0
CH1
•
•
•
CH15
COM
IN
+
IN
–
MUX
SDO
SCK
REF
+
REF
–
CS
SDI
F
O
(INT/EXT)
2444589 F01
+
–
TesT circuiT
FuncTional block DiagraM
1.69k
SDO
2444589 TC01
Hi-Z TO V
OH
V
OL
TO V
OH
V
OH
TO Hi-Z
C
LOAD
= 20pF
1.69k
S
DO
2444589 TC02
Hi-Z TO V
OL
V
OH
TO V
OL
V
OL
TO Hi-Z
C
LOAD
= 20pF
V
CC
Figure 1. Functional Block Diagram