Datasheet LTC201A, LTC202, LTC203 (Analog Devices)

HerstellerAnalog Devices
BeschreibungMicropower, Low Charge Injection, Quad CMOS Analog Switches
Seiten / Seite16 / 1 — FEATURES. DESCRIPTIO. KEY SPECIFICATIO S. TYPICAL APPLICATIO. Micropower …
RevisionLTC201A/LTC202/LTC203: Micropower, Low Charge Injection, Quad CMOS Analog Switches Data Sheet
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Dokumentenspracheenglisch

FEATURES. DESCRIPTIO. KEY SPECIFICATIO S. TYPICAL APPLICATIO. Micropower 100Hz to 1MHz V-to-F Converter

Datasheet LTC201A, LTC202, LTC203 Analog Devices, Revision: LTC201A/LTC202/LTC203: Micropower, Low Charge Injection, Quad CMOS Analog Switches Data Sheet

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LTC201A/LTC202/LTC203 Micropower, Low Charge Injection, Quad CMOS Analog Switches
U FEATURES DESCRIPTIO
■ Micropower Operation The LTC®201A, LTC202, and LTC203 are micropower, ■ Single 5V or ±15V Supply Operation quad CMOS analog switches which typically dissipate only ■ Low Charge Injection 250µW from ±15V supplies and 40µW from a single 5V ■ Low RON supply. The switches have 65Ω typical on resistance ■ Low Leakage and a very high off resistance. A break-before-make ■ Guaranteed Break Before Make characteristic, inherent in these switches, prevents the ■ Latch Resistant Design shorting of two channels. With a supply voltage of ±15V, ■ TTL/CMOS Compatible the signal range is ±15V. These switches have special ■ Improved Second Source for DG2O1A/DG202 charge compensation circuitry which greatly reduces charge injection to a maximum of ±25pC (±15V supplies).
U
The LTC201A, LTC202, and LTC203 are designed for
KEY SPECIFICATIO S
applications such as programmable gain amplifiers, ■ Supply Current ... I+ = 40µA, I– = 5µA Max analog multiplexers, sample-and-hold circuits, precision ■ Charge Injection charge switching and remote switching. These three ±15V Supplies ... ±25pC Max devices are differentiated by the type of switch action, as Single 5V Supply .. 2pC Typ shown in the logic table. ■ RON ... 65Ω Typ ■ Signal Range .. ±15V , LTC and LT are registered trademarks of Linear Technology Corporation.
U TYPICAL APPLICATIO Micropower 100Hz to 1MHz V-to-F Converter
V 7V TO 10V IN 1.5M OV TO 5V 100k 10k + 220k* 12k 1N4148 100Ω 100Hz TRIM 1/2 LT1178 LT1004-2.5 (240k* TYP) 1µF – 50k 1 + µF NC 47k 1/2 LT ®1178 2N3906 2N3904 – 0.01µF 2k VDD CLK CD4024 Q7 0.33µF 74C14 RESET VSS 3pF 10M LINEARITY IS 0.02% QUIESCENT CURRENT IS 90µA FOUT SUPPLY CURRENT IS 360µA AT 1MHz *1%FILM RESISTOR 2µF S1 S3 V+ IN2 IN3 IN1 IN4 GND V– S4 S2 LTC201A/LTC202 D1 D3 0.022µF D4 D2 500pF POLYSTYRENE LTC201A/202/203•TA01 201a23fb 1