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ALD4211_05 Datasheet(PDF) 1 Page - Advanced Linear Devices

Part No. ALD4211_05
Description  CMOS LOW VOLTAGE HIGH SPEED QUAD PRECISION ANALOG SWITCHES
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Maker  ALD [Advanced Linear Devices]
Homepage  http://www.aldinc.com
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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
© 2005.1 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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