LTC1045| Datasheet

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LTC1045 Programmable Micropower Hex Translator/ Receiver/Driver

FEATURES
s s s s s s s s

DESCRIPTIO

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 1.2us Response at 100uA Supply Current

The LTC 1045 is a hex level translator manufactured using Linear Technology's enhanced LTCMOSTM silicon gate process. It consists of six high speed comparators with output latches and three-state capability. Each comparator's 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 through an external resistor.

APPLICATIO S
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TTL/CMOS to 5V Analog Switch Drive TTL to CMOS (3V to 15V VCC) ECL to CMOS (3V to 15V VCC) Ground Isolation Buffer Low Power RS232 Line Receiver

, LTC and LT are registered trademarks of Linear Technology Corporation. LTCMOS is a trademark of Linear Technology Corporation.

TYPICAL APPLICATIO
5V 20 TTL IN XMT IN

Flat Ribbon Cable Driver/Receiver
5V

+

V+ 1 VOH VOL DIS 13 11 20 XMT OUT 66-FT FLAT RIBBON CABLE ZO = 150 ADJACENT CONDUCTORS 150 RCV IN V+ 1 VOH VOL DIS 13 11 RCV OUT

1.4V

ISET 12 10

V

0.5V

XMT IN (5V/DIV) XMT OUT (1V/DIV)

RCV IN (1V/DIV)

RCV OUT (5V/DIV) 100ns/DIV
045 TA01a

U
+
TTL OUT ISET 12
1045 TA01

U

U

V 10

1045fc

1

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LTC1045 DATASHEET