ADVANCED LINEAR DEVICES ALD4201, ALD4202M Service Manual

ADVANCED LINEAR DEVICES, INC.
ALD4201/ALD4202M
CMOS LOW VOLTAGE, LOW CHARGE INJECTION QUAD SPST ANALOG SWITCHES
GENERAL DESCRIPTION
The ALD4201/ALD4202M are quad SPSTCMOS analog switches speci­fically developed for 3 to 12 volt applications where low charge injection and low leakage currents are important analog switch operating characteristics. The main features are precision matching, charge compensation circuitry, fast switching, low on-resistance and micropower consumption. The ALD4201 operates in break-before-make switching whereas the ALD4202M operates in make-before-break switching.
The ALD4201/ALD4202M 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 general purpose switching applications for micropower battery operated systems.
APPLICATIONS INFORMATION
The ALD4201/ALD4202M are designed to operate with standard single or dual power supplies of +3V to 10V or ±1.5V to ±5V. Functionality extends down to +2V or ±1V power supply, making it suitable for lithium battery or rechargeable battery operated systems where power efficiency and performance are important design parameters. These switches feature nA quiescent current and interface directly to CMOS logic levels from microprocessor or logic interface circuits. Built- in level shifters at the input stage provide for dual supply analog signal switching. On the board level, low charge injection and fast operation can be obtained 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 ALD4201/4202M are manufactured with Advanced Linear Devices' enhanced ACMOS silicon gate CMOS process, and are also part of the linear elements in Advanced Linear Devices' "Function-Specific" ASIC.
ORDERING INFORMATION
Operating Temperature Range
-55°C to +125°C0°C to +70°C0°C to +70°C 16-Pin 16-Pin 16-Pin
CERDIP Plastic Dip SOIC Package Package Package
ALD4201 DC ALD4201 PC ALD4201 SC ALD4202M DC ALD4202M PC ALD4202M SC
LOGIC TABLE
Input Logic
ALD4201 ALD4202M
0 On Off 1 Off On
* Contact factory for industrial temperature range.
Switch State
FEATURES
• 3V, 5V & 10V supply operation
±1.5V, ±2.5V & ±5V supply operation
• 0.1µW power dissipation
• 1pC charge injection
• Rail-to-rail signal range
• Low on-resistance
• pA leakage current
• 4201 break-before-make switching
• 4202M make-before-break switching
• Built-in dual supply level translator
BENEFITS
• Fast effective signal throughput
• Low switching transients
• Low signal loss
• Essentially no DC power consumption
• Full analog signal range over power supply rail
• Flexible power supply range for battery operated systems
APPLICATIONS
• Low level signal conditioning circuits
• Portable battery operated instruments
• Computer peripherals
• PCMCIA
• Fast sample and hold
• Analog signal multiplexer
• Programmable gain amplifiers
• Switched capacitor circuits
• Micropower based systems
• Video/audio switches
• Feedback control systems
PIN CONFIGURATION / BLOCK DIAGRAM
IN
D
S V
GND
S
D
IN
1
1
2
1
3
1
-
4
5
6
4
7
4
8
4
DC, PC, SC PACKAGE
IN
16
D
15
2
S
14
2
+
13
V NC
12
S
11
3
10
D
3
9
IN
2
3
© 1998 Advanced Linear Devices, Inc. 415 T asman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www .aldinc.com
ABSOLUTE MAXIMUM RATINGS
Supply voltage, V+ referenced to V GND -0.3V to +13.2V Terminal voltage range (any terminal) Note 1 (V- -0.3)V to (V+ +0.3)V Power dissipation 600 mW Operating temperature range PC, SC package 0°C to +70°C
Storage temperature range -65°C to +150°C Lead temperature, 10 seconds +260°C DC current (any terminal) 10mA
-
-0.3V to +13.2V
DC package -55°C to +125°C
POWER SUPPLY RANGE
4201/4202M (PC,SC) 4201/4202M (DC)
Parameter Symbol Min Typ Max Min Typ Max Unit
Supply V Voltage 3.0 12.0 3.0 12.0 V Single Supply
SUPPLY
±1.5 ±6.0 ±1.5 ±6.0 V Dual Supply
DC ELECTRICAL CHARACTERISTICS
= 25°C V+ = +5.0V, V- = -5.0V GND = 0.0V unless otherwise specified
T
A
4201/4202M (PC,SC) 4201/4202M (DC)
Parameter Symbol Min Typ Max Min Typ Max Unit Test Conditions
Analog Signal Range V On - Resistance R
A
ON
-5.0 5.0 -5.0 5.0 V 90 135 90 135 VA = 0V IA = 1mA
120 180 0°C to +70°C
140 210 -55°C to +125°C
Change of On-Resistance ∆R from -VS to +V
Change of On-Resistance ∆R with Temperature
RON Match 2 2 % Between Switches
Source Off I Leakage Current 500 pA 0°C to +70°C
Drain Off I Leakage Current 500 pA 0°C to +70°C
Channel On I Leakage Current 500 pA 0°C to +70°C
Input High Voltage V Input Low Voltage V Input High or I
Input Low Current I Supply Current I
S
ON
/T 0.43 0.43 %/°C
ON
S(OFF)
D(OFF)
D(ON)
IH
IL
IH IL
SUPPLY
4.0 4.0 Logic "1"
16 16 %
50 100 50 100 pA VS = +/-4.0V, VD = -/+4.0V
4000 pA -55°C to +125°C
50 100 50 100 pA VD = +/-4.0V, VS = -/+4.0V
4000 pA -55°C to +125°C
50 100 50 100 pA
4000 pA -55°C to +125°C
0.8 0.8 V Logic "0"
10 10 nA ±1.5 V
0.01 1 0.01 1 µA
SUPPLY
±5.0V
ALD4201/ALD4202M Advanced Linear Devices 2
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