LTC1045

LTC1045 Programmable Micropower Hex Translator/ Receiver/Driver FEATURES s s s s s s s s DESCRIPTION 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. 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 U APPLICATIONS s s s s s 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 APPLICATION 5V Flat Ribbon Cable Driver/Receiver 5V 20 TTL IN XMT IN + – V V+ 1 VOH VOL DIS 13 11 20 XMT OUT 66-FT FLAT RIBBON CABLE ZO = 150Ω ADJACENT CONDUCTORS 150Ω 0.5V RCV IN V+ 1 VOH VOL DIS 13 11 RCV OUT 1.4V ISET 12 10 – XMT IN (5V/DIV) XMT OUT (...