1
LTC1045
1045fc
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
Programmable
Micropower Hex Translator/
Receiver/Driver
100ns/DIV 045 TA01a
■
TTL/CMOS to ±5V Analog Switch Drive
■
TTL to CMOS (3V to 15V V
CC
)
■
ECL to CMOS (3V to 15V V
CC
)
■
Ground Isolation Buffer
■
Low Power RS232 Line Receiver
Flat Ribbon Cable Driver/Receiver
–
+
20
5V
11
1
TTL IN
1.4V
0.5V
XMT IN
XMT OUT 66-FT FLAT RIBBON CABLE
ADJACENT CONDUCTORS
Z
O
= 150Ω
150Ω
13
12
10
V
+
V
–
I
SET
DIS
V
OL
V
OH
RCV IN
1
RCV OUT
TTL OUT
1045 TA01
–
+
20
5V
11
13
12
10
V
+
V
–
I
SET
DIS
V
OL
V
OH
XMT IN (5V/DIV)
XMT OUT (1V/DIV)
RCV IN (1V/DIV)
RCV OUT (5V/DIV)
■
Efficiently Translate Voltage Levels
■
Internal Hysteresis for Noise Immunity
■
Output Latches Included
■
Three-State Outputs
■
Programmable Power/Speed
■
Power Can Be Completely Shut Off
■
±50V on Inputs with External 100k Limit Resistor
■
1.2µs Response at 100µA Supply Current
The LTC
®
1045 is a hex level translator manufactured using
Linear Technology’s enhanced LTCMOS
TM
silicon gate
process. It consists of six high speed comparators with
output latches and three-state capability. Each compara-
tor’s plus input is brought out separately. The minus inputs
of comparators 1 to 4 are tied to V
TRIP1
while 5 and 6 are
tied to V
TRIP2
.
The I
SET
pin has several functions. When taken to V
+
the
outputs are latched and power is completely shut off.
Power/speed can be programmed by connecting I
SET
to V
–
through an external resistor.
, LTC and LT are registered trademarks of Linear Technology Corporation.
LTCMOS is a trademark of Linear Technology Corporation.
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