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ALD4211 Datasheet(PDF) 1 Page - Advanced Linear Devices |
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ALD4211 Datasheet(HTML) 1 Page - Advanced Linear Devices |
1 / 8 page GENERAL DESCRIPTION The ALD4211/ALD4212/ALD4213 are quad SPST CMOS analog switches specifically designed for low voltage, high speed applications where 0.2pC charge injection, 200pf sampling capacitor, and picoamp leakage current are important analog switch operating characteristics. These analog switches feature fast switching, low on-resistance and micropower consumption. TheALD4211/4212/4213 are designed for precision applications such as charge amplifiers, sample and hold amplifiers, data converter switches, and programmable gain amplifiers. These switches are also excellent for low voltage micropower general purpose switching applications. APPLICATIONS INFORMATION The ALD4211/4212/4213 operate with a standard single power supply from +3V to +12Volts. Functionality extends down to a +2 volt power supply making it suitable for lithium battery or rechargeable battery operated systems where power, efficiency, and performance are important design considerations. Break-before-make switching is guaranteed with single supply operation. The ALD4211/4212/4213 may also be used with dual power supplies from ±1.5 to ±6 volts. With special charge balancing and charge cancellation circuitry on chip the ALD4211/ALD4212/ALD4213 were developed for ultra low charge injection applications. Using a 200pF sampling capacitor, very fast precise signal acquisition may be achieved. With ultra low quiescent current, these switches interface directly to CMOS logic levels from microprocessor or logic circuits. On the board level, low charge injection and fast operation may be achieved by using short leads, minimizing input and output capacitances, and by adequate bypass capacitors placed on the board at the supply nodes. For more information, see Application Note AN4200. The ALD4211/ALD4212/ALD4213 are manufactured with Advanced Linear Devices enhanced ACMOS silicon gate CMOS process. They are designed also as linear cell elements in Advanced Linear Devices’ “Function-Specific” ASIC. CMOS LOW VOLTAGE HIGH SPEED QUAD PRECISION ANALOG SWITCHES ALD4211/ALD4212 ALD4213 ADVANCED LINEAR DEVICES, INC. FEATURES • 3V, 5V and ±5V supply operation • 0.2pC charge injection • 200pF sampling capacitor • pA leakage current • 0.1 µW power dissipation • High precision • Rail to rail signal range • Low On-resistance • Break-before-make switching BENEFITS • Five times faster signal capture • Low switching transients • Low signal loss • Essentially no DC power consumption • Full analog signal range from rail to rail • Flexible power supply range for battery operated systems APPLICATIONS • Fast sample and hold • Computer peripherals • PCMCIA • Low level signal conditioning circuits • Portable battery operated systems • Analog signal multiplexer • Programmable gain amplifiers • Switched capacitor circuits • Micropower based systems • Video/audio switches • Feedback control systems Operating Temperature Range -55 °C to +125°C -40 °C to +85°C -40 °C to +85°C 16-Pin 16-Pin 16-Pin CERDIP Plastic Dip SOIC Package Package Package ALD4211 DC ALD4211 PC ALD4211 SC ALD4212 DC ALD4212 PC ALD4212 SC ALD4213 DC ALD4213 PC ALD4213 SC ORDERING INFORMATION * Contact factory for industrial temperature range. LOGIC TABLE Input Logic Switch State ALD4211 ALD4212 ALD4213 0 On Off Off On 1 Off On On Off Switch 1 / Switch 4 Switch 2 / Switch 3 PIN CONFIGURATION/ BLOCK DIAGRAM OUT2 DC, PC, SC PACKAGE 1 14 2 3 13 12 11 10 9 4 5 6 7 8 15 16 IN1 COM1 OUT1 V- GND OUT4 COM4 IN4 IN3 IN2 COM2 V+ NC OUT3 COM3 © 1998 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com |
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