Rainbow Electronics MAX944 - Manual (Page 9)

MAX941/MAX942/MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
_______________________________________________________________________________________ 9
MAX941
MAX942
MAX944
4.1k Ω
4.1k Ω
TO INTERNAL
CIRCUITRY
TO INTERNAL
CIRCUITRY
IN–
IN+
I
SOURCE
I
SINK
V
CC
0
OUTPUT
MAX941
MAX942
MAX944
ANALOG IN
V
SS
SERIAL
DIGITAL
INPUT
MAX512
V
DD
SDI
DACOUTC
V
DD
= 3.3V
VREFC
8-BIT DAC
GND
MAX941
0
3V
CLEAN
DIGITAL
SIGNAL
10k Ω
20k Ω
20k Ω
V+ = 3V
COAX LINE
MAX941
Figure 3. Input Stage Circuitry Figure 4. Output Stage Circuitry
Figure 5. 3.3V Digitally Controlled Threshold Detector Figure 6. Line Transceiver Application