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LTC1045_1 Datasheet, PDF (1/20 Pages) Linear Technology – Programmable Micropower Hex Translator/Receiver/Driver | |||
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LTC1045
Programmable
Micropower Hex Translator/
Receiver/Driver
FEATURES
s Efficiently Translate Voltage Levels
s Internal Hysteresis for Noise Immunity
s Output Latches Included
s Three-State Outputs
s Programmable Power/Speed
s Power Can Be Completely Shut Off
s ±50V on Inputs with External 100k Limit Resistor
s 1.2µs Response at 100µA Supply Current
U
APPLICATIO S
s TTL/CMOS to ±5V Analog Switch Drive
s TTL to CMOS (3V to 15V VCC)
s ECL to CMOS (3V to 15V VCC)
s Ground Isolation Buffer
s Low Power RS232 Line Receiver
DESCRIPTIO
The LTC®1045 is a hex level translator manufactured using
Linear Technologyâs enhanced LTCMOSTM silicon gate
process. It consists of six high speed comparators with
output latches and three-state capability. Each compara-
torâs plus input is brought out separately. The minus inputs
of comparators 1 to 4 are tied to VTRIP1 while 5 and 6 are
tied to VTRIP2.
The ISET 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 ISET to V â
through an external resistor.
, LTC and LT are registered trademarks of Linear Technology Corporation.
LTCMOS is a trademark of Linear Technology Corporation.
TYPICAL APPLICATIO
5V
TTL IN
1.4V
XMT IN
20
V+
+
1
VOH
VOL
XMT OUT
DIS 11
â ISET 13
Vâ 12
10
Flat Ribbon Cable Driver/Receiver
5V
66-FT FLAT RIBBON CABLE
ZO = 150â¦
ADJACENT CONDUCTORS
RCV IN
150â¦
0.5V
20
V+
+
1
VOH
VOL
RCV OUT
DIS 11
â ISET 13
Vâ 12
10
TTL OUT
1045 TA01
XMT IN (5V/DIV)
XMT OUT (1V/DIV)
RCV IN (1V/DIV)
RCV OUT (5V/DIV)
100ns/DIV
045 TA01a
1045fc
1
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