LTC203 Micropower, Low Charge Injection, Quad CMOS Analog Switches

The LTC™201A, LTC202, and LTC203 are micropower, quad CMOS analog switches which typically dissipate only 250µW from ±15V supplies and 40µW from a single 5V supply. The switches have 65 Ohm typical on resistance and a very high off resistance. A break-before-make characteristic, inherent in these switches, prevents the shorting of two channels. With a supply voltage of ±15V, the signal range is ±15V. These switches have special charge compensation circuitry which greatly reduces charge injection to a maximum of �25pC (±15V supplies).

The LTC201A, LTC202, and LTC203 are designed for applications such as programmable gain amplifiers, analog multiplexers, sample-and-hold circuits, precision charge switching and remote switching. These three devices are differentiated by the type of switch action, as shown in the logic table

产品特点 Features

Micropower Operation
Single 5V or ±15V Supply Operation
Low Charge Injection
Low RON
Low Leakage
Guaranteed Break Before Make
Latch Resistant Design
TTL/CMOS Compatible
Improved Second Source for DG201A/DG202

封装

应用

Supply Current: 1+=40µA, 1-=5µA Max.
Charge Injection (±15V Supplies) ±25pC Max. (Single 5V Supply) 2pC Typ.
RON 65ohms Typ.
Signal Range: ±15V

典型应用图

LTC203 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC203CN	PDIP	16	C	$2.83	$2.30
LTC203CN#PBF	PDIP	16	C	$2.83	$2.30
LTC203CS	SO	16	C	$3.25	$2.65
LTC203CS#PBF	SO	16	C	$3.25	$2.65
LTC203CS#TR	SO	16	C		$2.71
LTC203CS#TRPBF	SO	16	C		$2.71

LTC203 数据手册及相关资料下载

数据手册(英文) : LTC201A/LTC202/LTC203 - Micropower, Low Charge Injection, Quad CMOS Analog Switches.PDF
应用指南 (英文) : AN23 - Micropower Circuits for Signal Conditioning.PDF
应用指南 (英文) : AN43 - Bridge Circuits.PDF
应用指南 (英文) : AN45 - Measurement and Control Circuit Collection.PDF
应用指南 (英文) : AN55 - Techniques for 92% Efficient LCD Illumination .PDF
设计要点 (英文) : DN136 - Micropower Dual and Quad JFET Op Amps Feature pA Input Bias Currents and C-LoadTM Drive Capability.PDF
设计要点 (英文) : DN38 - Applications for a New Micropower, Low Charge Injection Analog Switch.PDF
可靠性数据 : R251 Reliability Data .PDF