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: [phone] Fax: [phone] 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 Ω 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