ANALOG DEVICES ADG719 Service Manual

CMOS 1.8 V to 5.5 V, 2.5 

www.BDTIC.com/ADI

a

FEATURES

1.8 V to 5.5 V Single Supply
4  (Max) On Resistance

0.75  (Typ) On Resistance Flatness
Automotive Temperature Range: –40°C to +125°C
–3 dB Bandwidth > 200 MHz
Rail-to-Rail Operation
6-Lead SOT-23 Package and 8-Lead SOIC Package
Fast Switching Times:

= 12 ns

t

ON

= 6 ns

t

OFF

Typical Power Consumption (< 0.01 W)
TTL/CMOS Compatible

APPLICATIONS
Battery-Powered Systems
Communication Systems
Sample-and-Hold Systems
Audio Signal Routing
Video Switching
Mechanical Reed Relay Replacement

2:1 Mux/SPDT Switch in SOT-23

ADG719

FUNCTIONAL BLOCK DIAGRAM

ADG719

S2

S1

IN

SWITCHES SHOWN FOR A LOGIC “1” INPUT

D

GENERAL DESCRIPTION

The ADG719 is a monolithic CMOS SPDT switch. This switch
is designed on a submicron process that provides low power
dissipation yet gives high switching speed, low on resistance, and
low leakage currents.

The ADG719 can operate from a single-supply range of 1.8 V to

5.5 V, making it ideal for use in battery-powered instruments and
with the new generation of DACs and ADCs from Analog Devices.

Each switch of the ADG719 conducts equally well in both
directions when on. The ADG719 exhibits break-before-make
switching action.

Because of the advanced submicron process, –3 dB bandwidths
of greater than 200 MHz can be achieved.

The ADG719 is available in a 6-lead SOT-23 package and an
8-lead µSOIC package.

PRODUCT HIGHLIGHTS

1. 1.8 V to 5.5 V Single-Supply Operation. The ADG719 offers
high performance, including low on resistance and fast switching
times, and is fully specified and guaranteed with 3 V and 5 V
supply rails.

2. Very Low R
At 1.8 V operation, R
ture range.

3. Automotive Temperature Range: –40°C to +125°C

4. On Resistance Flatness (R

5. –3 dB Bandwidth > 200 MHz.

6. Low Power Dissipation. CMOS construction ensures low
power dissipation.

7. Fast t

8. Tiny 6-lead SOT-23 and 8-lead µSOIC packages.

ON/tOFF.

(4 Ω Max at 5 V and 10 Ω Max at 3 V).

ON

is typically 40 Ω over the tempera-

ON

FLAT(ON)

) (0.75 Ω typ).

REV. B

Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] © Analog Devices, Inc., 2002

ADG719–SPECIFICATIONS

www.BDTIC.com/ADI

Parameter +25C +85C +125C Unit Test Conditions/Comments

ANALOG SWITCH

Analog Signal Range 0 V to VDDV
On Resistance (R

On Resistance Match Between

Channels (∆R

On Resistance Flatness (R

LEAKAGE CURRENTS V

Source Off Leakage I

Channel On Leakage I

DIGITAL INPUTS

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

or I

I

INL

INH

DYNAMIC CHARACTERISTICS

t

ON

t

OFF

Break-Before-Make Time Delay, t

Off Isolation –67 dB typ R

Channel-to-Channel Crosstalk –62 dB typ R

Bandwidth –3 dB 200 MHz typ R
C

(Off) 7 pF typ

S

CD, CS (On) 27 pF typ

POWER REQUIREMENTS V

I

DD

NOTES

1

Temperature range is as follows: B Version: – 40°C to +125°C.

2

Guaranteed by design, not subject to production test.

Specifications subject to change without notice.

)V

ON

2.5 Ω typ Test Circuit 1
45 7 Ω max

) 0.1 Ω typ VS = 0 V to VDD, IS = –10 mA

ON

FLAT(ON)

(Off) ±0.01 nA typ VS = 4.5 V/1 V, VD = 1 V/4.5 V;

S

)0.75 Ω typ VS = 0 V to VDD, IS = –10 mA

±0.25 ± 0.35 1 nA max Test Circuit 2

, IS (On) ±0.01 nA typ VS = VD = 1 V or VS = VD = 4.5 V;

D

±0.25 ± 0.35 5 nA max Test Circuit 3

INH

INL

0.005 µA typ VIN = V

2

7 ns typ RL = 300 Ω, CL = 35 pF

3 ns typ RL = 300 Ω, CL = 35 pF

8 ns typ RL = 300 Ω, CL = 35 pF,

D

–87 dB typ R

–82 dB typ R

0.001 µA typ

(VDD = 5 V  10%, GND = 0 V.)

B Version
–40C to –40C to

0.4 0.4 Ω max

1.2 1.5 Ω max

2.4 V min

0.8 V max

±0.1 µA max

12 ns max V

6 ns max V

1 ns min V

1.0 µA max

= 0 V to VDD, IS = –10 mA;

S

= 5.5 V

DD

or V

INL

= 3 V; Test Circuit 4

S

= 3 V; Test Circuit 4

S

= VS2 = 3 V; Test Circuit 5

S1

= 50 Ω, CL = 5 pF, f = 10 MHz

L

= 50 Ω, CL = 5 pF, f = 1 MHz;

L

INH

Test Circuit 6

= 50 Ω, CL = 5 pF, f = 10 MHz

L

= 50 Ω, CL = 5 pF, f = 1 MHz;

L

Test Circuit 7

= 50 Ω, CL = 5 pF; Test Circuit 8

L

= 5.5 V

DD

Digital Inputs = 0 V or 5.5 V

1

–2–

REV. B

ADG719

www.BDTIC.com/ADI

1

SPECIFICATIONS

Parameter +25C +85C +125C Unit Test Conditions/Comments

ANALOG SWITCH

Analog Signal Range 0 V to V
On Resistance (R

On Resistance Match Between
Channels (∆R

On Resistance Flatness (R

LEAKAGE CURRENTS V

Source Off Leakage I

Channel On Leakage I

DIGITAL INPUTS

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

or I

I

INL

DYNAMIC CHARACTERISTICS

t

ON

t

OFF

Break-Before-Make Time Delay, t

Off Isolation –67 dB typ R

Channel-to-Channel Crosstalk –62 dB typ R

Bandwidth –3 dB 200 MHz typ R

(Off) 7 pF typ

C

S

CD, CS (On) 27 pF typ

POWER REQUIREMENTS V

I

DD

NOTES

1

Temperature range is as follows: B Version: –40°C to +125°C.

2

Guaranteed by design, not subject to production test.

Specifications subject to change without notice.

INH

ON

) 0.1 Ω typ VS = 0 V to VDD, IS = –10 mA

ON

(VDD = 3 V  10%, GND = 0 V.)

B Version
–40C to –40C to

V

DD

)67 Ω typ VS = 0 V to VDD, IS = –10 mA;

10 12 Ω max Test Circuit 1

0.4 0.4 Ω max

FLAT(ON)

(Off) ±0.01 nA typ VS = 3 V/1 V, VD = 1 V/3 V;

S

) 2.5 Ω typ VS = 0 V to VDD, IS = –10 mA

= 3.3 V

DD

±0.25 ±0.35 1 nA max Test Circuit 2

, IS (On) ±0.01 nA typ VS = VD = 1 V or VS = VD = 3 V;

D

±0.25 ±0.35 5 nA max Test Circuit 3

INH

INL

0.005 µA typ VIN = V

2.0 V min

0.8 V max

INL

or V

INH

±0.1 µA max

2

10 ns typ RL = 300 Ω, CL = 35 pF

15 ns max V

= 2 V; Test Circuit 4

S

4 ns typ RL = 300 Ω, CL = 35 pF

8 ns max V

8 ns typ RL = 300 Ω, CL = 35 pF

D

1 ns min V

–87 dB typ R

= 2 V; Test Circuit 4

S

= VS2 = 2 V; Test Circuit 5

S1

= 50 Ω, CL = 5 pF, f = 10 MHz

L

= 50 Ω, CL = 5 pF, f = 1 MHz;

L

Test Circuit 6

= 50 Ω, CL = 5 pF, f = 10 MHz

L

–82 dB typ R

= 50 Ω, CL = 5 pF, f = 1 MHz;

L

Test Circuit 7

= 50 Ω, CL = 5 pF; Test Circuit 8

L

= 3.3 V

DD

Digital Inputs = 0 V or 3.3 V

0.001 µA typ

1.0 µA max

REV. B

–3–

ADG719

www.BDTIC.com/ADI

ABSOLUTE MAXIMUM RATINGS

(TA = 25°C, unless otherwise noted.)

VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V

Analog, Digital Inputs

2

. . . . . . . . . . –0.3 V to VDD + 0.3 V or

1

. . . . . . . . . . . . . . . . . . . . . . . 30 mA, Whichever Occurs First

Peak Current, S or D . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA

(Pulsed at 1 ms, 10% Duty Cycle Max)

Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . . 30 mA

Operating Temperature Range

Industrial (B Version) . . . . . . . . . . . . . . . . –40°C to +125°C

Storage Temperature Range . . . . . . . . . . . . . –65°C to +150°C

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C

µSOIC Package, Power Dissipation . . . . . . . . . . . . . . . 315 mW

Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 206°C/W

θ

JA

Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 44°C/W

θ

JC

SOT-23 Package, Power Dissipation . . . . . . . . . . . . . . 282 mW

Thermal Impedance . . . . . . . . . . . . . . . . . . . . 229.6°C/W

θ

JA

Thermal Impedance . . . . . . . . . . . . . . . . . . . . 91.99°C/W

θ

JC

Lead Temperature, Soldering

Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215°C

Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C

ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 kV

NOTES

1

Stresses above those listed under Absolute Maximum Ratings may cause perma­nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability. Only one absolute
maximum rating may be applied at any one time.

2

Overvoltages at IN, S, or D will be clamped by internal diodes. Current should be
limited to the maximum ratings given.

Table I. Truth Table

ADG719 IN Switch S1 Switch S2

0ONOFF
1 OFF ON

PIN CONFIGURATIONS

TERMINOLOGY

V

DD

Most Positive Power Supply Potential
GND Ground (0 V) Reference
S Source Terminal. May be an input or output.
DDrain Terminal. May be an input or output.
IN Logic Control Input
R

ON

∆R

ON

R

FLAT(ON)

Ohmic Resistance between D and S

On Resistance Match between Any Two Channels

i.e., R

max – R

ON

ON

min

Flatness is defined as the difference between the

maximum and minimum value of on resistance,

as measured over the specified analog signal range.
I

(Off) Source Leakage Current with the Switch Off

S

I

, IS (On) Channel Leakage Current with the Switch On

D

V

)Analog Voltage on Terminals D and S

D (VS

C

(Off) Off Switch Source Capacitance

S

C

, CS (On) On Switch Capacitance

D

t

ON

Delay between Applying the Digital Control

Input and the Output Switching On
t

OFF

Delay between Applying the Digital Control

Input and the Output Switching Off
t

D

Off Time or On Time Measured between the

90% Points of Both Switches, when Switching

From One Address State to Another
Crosstalk A Measure of Unwanted Signal That Is Coupled

through from One Channel to Another as a Result

of Parasitic Capacitance
Off Isolation A Measure of Unwanted Signal Coupling through

an Off Switch
Bandwidth The Frequency at Which the Output is Attenuated

by –3 dBs
On Response The Frequency Response of the On Switch
Insertion Loss Loss due to On Resistance of Switch

6-Lead SOT-23

(RT-6)

1

IN

ADG719

2

V

TOP VIEW

DD

(Not to Scale)

3

GND

6

S2

5

D

4

S1

8-Lead SOIC

(RM-8)

1

D

2

ADG719

S1

TOP VIEW

3

GND

(Not to Scale)

4

DD

NC = NO CONNECT

8

S2

7

NC

6

IN

5

NCV

ORDERING GUIDE

Model Temperature Range Brand* Package Description Package Option

ADG719BRM –40°C to +125°C S5B µSOIC (MicroSmall Outline IC) [MSOP] RM-8
ADG719BRT –40°C to +125°C S5B SOT-23 (Plastic Surface Mount) RT-6

*Branding on these packages is limited to three characters due to space constraints.

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the ADG719 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.

–4–

WARNING!

ESD SENSITIVE DEVICE

REV. B