Analog Devices ADG333A a Datasheet

Quad SPDT Switch

FEATURES

44 V supply maximum ratings

to VDD analog signal range

V

SS

Low on resistance (45 Ω max)
Low ∆R
Low R
Low power dissipation
Fast switching times

Low leakage currents (5 nA max)
Low charge injection (10 pC max)
Break-before-make switching action

APPLICATIONS

Audio and video switching
Battery-powered systems
Test equipment
Communication systems

GENERAL DESCRIPTION

The ADG333A is a monolithic CMOS device comprising four
independently selectable SPDT switches. It is designed on an
LC
achieves a high switching speed and a low on resistance.

The on resistance profile is very flat over the full analog input
range, ensuring good linearity and low distortion when
switching audio signals. High switching speed also makes the
part suitable for video signal switching. CMOS construction
ensures ultralow power dissipation, making the part ideally
suited for portable, battery-powered instruments.

When they are on, each switch conducts equally well in both
directions and has an input signal range that extends to the
power supplies. In the off condition, signal levels up to the
supplies are blocked. All switches exhibit break-before-make
switching action for use in multiplexer applications. Inherent
in the design is low charge inject

(5 Ω max)

ON

match (4 Ω max)

ON

< 175 ns

t

ON

t

< 145 ns

OFF

2

MOS process, which provides low power dissipation yet

ADG333A

FUNCTIONAL BLOCK DIAGRAM

S1A

D1

S1B

IN1

ADG333A

IN2

S2B

D2

S2A

SWITCHES SHOWN FOR A LOGIC 1 INPUT

Figure 1.

PRODUCT HIGHLIGHTS

1. Extended signal range.

The ADG333A is fabricated on an enhanced LC
process, giving an increased signal range which extends to
the supply rails.

2. Low power dissipation.

3. Low R

4. Single-supply operation.

For applications where the analog signal is unipolar, the
ADG333A can be operated from a single rail power supply.
The part is fully specified with a single 12 V supply.

ON

.

S4A
D2
S4B

IN4

IN3

S3B
D3
S3A

01212-001

2

MOS

Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable.
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infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
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registered trademarks are the property of their respective owners.

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© 2005 Analog Devices, Inc. All rights reserved.

ADG333A

TABLE OF CONTENTS

Specifications..................................................................................... 3

Typical Perfor m a n c e C haracter i s t ic s ..............................................8

Dual Supply ................................................................................... 3

Single Supply ................................................................................. 4

Absolute Maximum Ratings............................................................ 5

ESD Caution.................................................................................. 5

Te r mi n ol o g y ...................................................................................... 6

Pin Configurations and Function Descriptions ........................... 7

REVISION HISTORY

3/05—Rev. 0 to Rev. A

Updated Format..................................................................Universal

Changes to Specifications Tables.................................................... 3

Updated Outline Dimensions....................................................... 12

Changes to Ordering Guide.......................................................... 12

10/95—Revision 0: Initial Version

Test C ir c uit s ..................................................................................... 10

Application Information................................................................ 11

ADG333A Supply Voltages....................................................... 11

Power Supply Sequencing ......................................................... 11

Outline Dimensions ....................................................................... 12

Ordering Guide .......................................................................... 12

Rev. A | Page 2 of 12

ADG333A

SPECIFICATIONS

DUAL SUPPLY

VDD = +15 V, VSS = −15 V, GND = 0 V, unless otherwise noted.

Table 1.

Parameter +25°C −40°C to +85°C Unit Test Conditions/Comments

ANALOG SWITCH

Analog Signal Range
R

ON

∆RON

20
45 45 Ω max
5 Ω max VD = ±5 V, IS = –10 mA

VSS to V

RON Match 4 Ω max VD = ±10 V, IS = –10 mA

LEAKAGE CURRENTS VDD = +16.5 V, VSS = –16.5 V

Source OFF Leakage IS (OFF) ±0.1

±0.25 ±3 nA max Figure 15

Channel ON Leakage ID, IS (ON) ±0.1

±0.4 ±5 nA max Figure 16

DIGITAL INPUTS

Input High Voltage, V
Input Low Voltage, V
Input Current
I

or I

INL

INH

2.4 V min

INH

0.8 V max

INL

±0.005 µA typ VIN = 0 V or V
±0.5 µA max

DYNAMIC CHARACTERISTICS2

tON 90

t

80

OFF

Break-Before-Make Delay, t

10 ns min RL = 300 Ω, CL= 35 pF;

OPEN

175 ns max VS = ±10 V; Figure 17

145 ns max VS = ±10 V; Figure 17

V
Charge Injection 2 pC typ VD = 0 V, RD = 0 Ω, CL= 10 nF;

10 pC max VDD = +15 V, VSS = –15 V; Figure 19
OFF Isolation 72 dB typ RL = 75 Ω, CL = 5 pF, f = 1 MHz;
V
Channel-to-Channel Crosstalk 85 dB typ RL = 75 Ω, CL = 5 pF, f = 1 MHz;
V
CS (OFF) 7 pF typ
CD, CS (ON) 26 pF typ

POWER REQUIREMENTS

IDD 0.05 mA typ Digital inputs = 0 V or 5 V

0.25 0.35 mA max
I

SS

VDD/VSS

1

Temperature range is as follows: B version: −40°C to +85°C.

2

Guaranteed by design; not subject to production test.

0.01

1 5 µA max

±3/±20 V min/V max |VDD| = |VSS|

1

DD

V
Ω typ VD = ±10 V, IS = –1 mA

nA typ VD = ±15.5 V, VS = +15.5 V

nA typ VS = VD = ±15.5 V

DD

ns typ RL= 300 Ω, CL = 35 pF;

ns typ RL = 300 Ω, CL = 35 pF;

= +5 V; Figure 18

S

= 2.3 V rms; Figure 20

S

= 2.3 V rms; Figure 21

S

µA typ

Rev. A | Page 3 of 12

ADG333A

SINGLE SUPPLY

VDD = +12 V, VSS = 0 V ± 10%, GND = 0 V, unless otherwise noted.

Table 2.

Parameter +25°C −40°C to +85°C Unit Test Conditions/Comments

ANALOG SWITCH

Analog Signal Range 0 V to V
RON 35 Ω typ VD = 1 V, 10 V, IS = –1 mA
75 Ω max

LEAKAGE CURRENTS VDD = 13.2 V

Source OFF Leakage IS (OFF) ±0.1 nA typ VD = 12.2 V/1 V, VS = 1 V/12.2 V
±0.25 ±3 nA max Figure 15
Channel ON Leakage ID, IS (ON) ±0.1 nA typ VS = VD = 12.2 V/1 V
±0.4 ±5 nA max Figure 16

DIGITAL INPUTS

Input High Voltage, V
Input Low Voltage, V

INH

INL

2.4 V min

0.8 V max
Input Current
I

or I

INL

INH

±0.005 µA typ VIN = 0 V or V

±0.5 µA max

DYNAMIC CHARACTERISTICS2

t

ON

110 ns typ RL = 300 Ω, CL = 35 pF;
200 ns max VS = 8 V; Figure 17
t

OFF

100 ns typ RL = 300 Ω, CL = 35 pF;
180 ns max VS = 8 V; Figure 17
Break-Before-Make Delay, t

OPEN

10 ns min RL = 300 Ω, CL = 35 pF;
ns min VS = 5 V; Figure 18
Charge Injection 5 pC typ VD = 6 V, RD = 0 W, CL = 10 nF;
V
OFF Isolation 72 dB typ RL = 75 Ω, CL = 5 pF, f = 1 MHz;
V
Channel-to-Channel Crosstalk 85 dB typ RL = 75 Ω, CL = 5 pF, f = 1 MHz;
V
CS (OFF) 12 pF typ
CD, CS (ON) 25 pF typ

POWER REQUIREMENTS VDD = 13.5 V

I

DD

0.05 mA typ Digital inputs = 0 V or 5 V

0.25 0.35 mA max
V

DD

1

Temperature range is as follows: B Version: −40°C to +85°C.

2

Guaranteed by design; not subject to production test.

±3/±30 V min/V max

1

DD

V

DD

= 12 V, VSS = 0 V; Figure 19

DD

= 1.15 V rms; Figure 20

S

= 1.15 V rms; Figure 21

S

Rev. A | Page 4 of 12