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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 Vthrough an external resistor.
LTC1045 Maximum Ratings
Total Supply Voltage (V +, VOH to V , VOL) .............. 18V Output High Voltage (VOH) ...................................... £ V + Input Voltage ....................................18V to (V 0.3V) Output Short-Circuit Duration (VOH VOL £ 10V) ................................... Continuous ESD (MIL-STD-883, Method 3015) .................... 2000V Operating Temperature Range ................. 40°C to 85°C Storage Temperature Range ................. 55°C to 150°C Lead Temperature (Soldering, 10 sec).................. 300°C
LTC1045 Features
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 1.2ms Response at 100mA Supply Current
LTC1045 Typical Application
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