Datasheet > AS1745

AS1745

更新时间： 2024-01-11 01:54:29

品牌	Logo	应用领域
艾迈斯 - AMSCO		开关光电二极管
页数	文件大小	规格书
16页	353K
描述
High-Speed, Low-Voltage, Dual, Single-Supply, 4з, SPDT Analog Switches

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AS1745 技术参数

生命周期：	Contact Manufacturer	Reach Compliance Code：	unknown
风险等级：	5.74	Is Samacsys：	N
Base Number Matches：	1

AS1745 数据手册

austriamicrosystems

Data Sheet

AS1744 , AS1745

High-Speed, Low-Voltage, Dual, Single-Supply,

4Ω, SPDT Analog Switches

1 General Description

2 Key Features

ꢀ

ON-Resistance:

The AS1744/AS1745 are high-speed, low-voltage, dual

single-pole/double-throw (SPDT) analog switches.

- 4Ω (+5V supply)

- 5.5Ω (+3V supply)

Fast switching speeds, low ON-resistance, and low

power-consumption make these devices ideal for single-

cell battery powered applications.

ꢀ

RON Matching: 0.2Ω (+5V supply)

RON Flatness: 1Ω (+5V supply)

Supply Voltage Range: +1.8 to +5.5V

These highly-reliable devices operate from a +1.8 to

+5.5V supply, are differentiated by inverted logic, and

support break-before-make switching.

1.8V Operation:

With low ON-resistance (RON), RON matching, and RON

flatness, the devices can accurately switch signals for

sample and hold circuits, digital filters, and op-amp gain

switching networks.

- 9.5Ω ON-Resistance over Temperature

- 38ns Turn On Time

- 12ns Turn Off Time

ꢀ

Current-Handling: 100mA Continuous

Break-Before-Make Switching

Rail-to-Rail Signal Handling

The devices are available in a 10-pin MSOP package

and a 10-pin TDFN package.

Crosstalk: -90dB at 1MHz

Off-Isolation: -85dB at 1MHz

Total Harmonic Distortion: 0.1%

Operating Temperature Range: -40 to +85ºC

ꢀ

Package Types:

- 10-pin MSOP

- 10-pin TDFN

3 Applications

The devices are ideal for use in power routing systems,

cordless and mobile phones, MP3 players, CD and DVD

players, PDAs, handheld computers, digital cameras,

and any other application where high-speed signal

switching is required.

Figure 1. Block Diagrams

IN1

COM1

Truth Table

NOx to NCx to

COMx COMx

INx

NC1

NO1

NC1

Low

Off

AS1745

AS1744

V+

GND

High

Switches shown for low input.

NC2

NO2

NC2

IN2

COM2

IN2

COM2

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