3
FN6230.3
April 4, 2013
Pin Descriptions
PIN
FUNCTION
VEE
Negative supply input
QAX
Channel A, CVAX reference driven. Comparator output.
QBX
Channel B, CVBX reference driven. Comparator output.
VOL
Comparator output logic low supply. Unbuffered analog input that sets all QAX, QBX “l(fā)ow” voltage level.
VOH
Comparator output logic high supply. Unbuffered analog input that sets all QAX, QBX “high” voltage level.
VCC
Positive supply input.
CVAX
Channel A comparator reference analog input.
VINPX
Window comparator input. Common to both Channel Ax and Channel Bx.
CVBX
Channel B comparator reference analog input.
PD
Power-down logic input (connect to VEE if not used for power-down).
NC
No internal connection.
TABLE 1. CVA-QA AND CVB-QB BASIC COMPARATOR
TRUTH TABLE
INPUT
OUTPUTS*
VINPX
QAX
QBX
<CVAX
<CVBX
00
<CVAX
>CVBX
01
>CVAX
<CVBX
10
>CVAX
>CVBX
11
* When QAX/QBX = 1, Output is connect to VOH
* When QAX/QBX = 0, Output is connect to VOL
ISL55141, ISL55142, ISL55143