ft3157 datasheet, PDF - EEWORLD Datasheet

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ft3157: Descriptionft3157 Low-Ohmic Single-Pole Double-Throw Analog Switch; CategoryPower management; File Size649KB，11 Pages; ManufacturerFangtek Electronics (Shanghai) Co., Ltd.; Websitehttp://www.fangtek.com.cn; Fangtai Electronics is an integrated circuit design company specializing in the design, development and marketing of high-efficiency, high-performance analog and mixed-signal products. Its products are mainly used in the fields of communications, computers, consumer electronics, etc. As a high-quality, reliable and high-value-added integrated circuit supplier, Fangtai Electronics is committed to developing innovative power management solutions to meet the growing demand for greater power efficiency.

Through the deep accumulation of proprietary technologies in power device technology and mixed signal design, Fangtek Electronics provides a rich range of high-performance, low-cost audio amplifiers, LED drivers, power management and other products, which are widely used in the fields of sound, light, electricity and other fields of various electronic equipment.

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ft3157 Overview

ft3157 Low-Ohmic Single-Pole Double-Throw Analog Switch

Features

+ The ft3157 is a low on-resistance high speed single-pole dual-throw (SPDT) analog switch suitable for use as an analog or digital 2:1 multiplexer/demultiplexer. It has a digital select input (IN), two independent inputs or outputs (NO and NC) and a common input or output (COM). Schmitt-trigger action at the digital input makes the circuit tolerant to slower input rise and fall times.

+ The ft3157 operates from a 1.65V to 5.5V power supply and features high-bandwidth (250MHz) and low on-resistance (4Ω). It also features a break-before-make switching to prevent disruption of signals due to both switches temporarily being enabled during switching.

+ The ft3157 is available in SC70-6L (2.0mm x2.1mm) package.

Parameters

+ Supply voltage range: 1.65V to 5.5V

+ Low on-resistance: 4Ω @ 4.5V (typical)

+ Power-down control pin

+ Break-before-make switching

+ 250MHz @ -3dB bandwidth

+ Fast switching time

　ON 20ns

　OFF 15ns

+ Rail-to-rail signal handling

+ High off-isolation: 52dB at 10MHz

Application

Mobile phones、Portable digital assistant (PDA)、Portable devices

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