ایزولاتور ایزولاتور دیجیتال

Product Attributes

Introduction

The LTC1145A/LTC1146A provide 2500VRMs (1 minute) or 3000VRMs (1 second) of input to output isolation for TTL digital/CMOS signals. The LTC1145/LTC1146 are intended for less stringent applications and are rated for 500VRMs. Unlike opto - isolators, the input current is a mere 70μA for the LTC1146 which can handle frequencies up to 20kHz. The faster LTC1145 will handle frequencies up to 200kHz while only drawing 700μA. The output signal is in phase with the input and swings between GND2 and VGC providing a TTL/CMOS compatible signal without any pull - up resistors. An on - chip noise filter helps prevent glitches and data errors at the output, and a pin is provided for synchronizing the output signal to an external system clock.

Features

• UL Recognized (LTC1145A, LTC1146A)
• File E151738 to UL1577
• Low Input Current LTC1145: 700μA LTC1146: 70μA
• Maximum Input Frequency LTC1145: 200kHz LTC1146: 20kHz
• TTL Level Output
• Noise Filter Prevents Glitches at the Output
• Output Can Be Synchronized to an External Clock

Applications

• Low Power Opto - Isolator Replacement
• Isolated Serial Data Interfaces
• Isolated Power MOSFET Drivers