Datasheet ADG701 Datasheet (Analog Devices)

CMOS Low Voltage

S

FEATURES

1.8 V to 5.5 V single supply
2 Ω (typ) on resistance
Low on-resistance flatness
–3 dB bandwidth > 200 MHz
Rail-to-rail operation
Fast switching times:

18 ns

t

ON

t

12 ns

OFF

Typical power consumption < 0.01 µW
TTL/CMOS compatible

APPLICATIONS

Battery powered systems
Communication systems
Sample hold systems
Audio signal routing
Video switching
Mechanical reed relay replacement

GENERAL DESCRIPTION

The ADG701/ADG702 are monolithic CMOS SPST switches.
These switches are designed on an advanced submicron process
that provides low power dissipation yet high switching speed,
low on resistance, and low leakage currents. In addition, −3 dB
bandwidths of greater than 200 MHz can be achieved.

The ADG701/ADG702 can operate from a single 1.8 V to 5.5 V
supply, making it ideal for use in battery-powered instruments
and with the new generation of DACs and ADCs from Analog
Devices.

Figure 1 shows that with a logic input of 1, the switch of the
ADG701 is closed, while that of the ADG702 is open. Each
switch conducts equally well in both directions when on.

The ADG701/ADG702 are available in 5-lead SOT-23, 6-lead
SOT-23, and 8-lead MSOP packages.

2 Ω SPST Switches

ADG701/ADG702

FUNCTIONAL BLOCK DIAGRAM

ADG701

D

IN

SWITCHES SHOWN FOR A LOGIC 1 INPUT

Figure 1.

PRODUCT HIGHLIGHTS

1. 1.8 V to 5.5 V single-supply operation. The ADG701/

ADG702 offer high performance, including low on
resistance and fast switching times, and are fully specified
and guaranteed with 3 V and 5 V supply rails.

2. Ver y lo w R

operation, R

3. On resistance flatness R

4. −3 dB bandwidth > 200 MHz.

5. Low power dissipation. CMOS construction ensures low

power dissipation.

6. Fast t

7. Tiny 5-lead SOT-23, 6-lead SOT-23, and 8-lead MSOP

packages.

(3 Ω max at 5 V, 5 Ω max at 3 V). At 1.8 V

ON

is typically 40 Ω over the temperature range.

ON

FLAT(ON)

ON/tOFF.

ADG702

(1 Ω max).

DS

IN

00039-001

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.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone]
Fax: [phone] © 2004 Analog Devices, Inc. All rights reserved.

www.analog.com

ADG701/ADG702

TABLE OF CONTENTS

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

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

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

Pin Configurations and Function Descriptions ........................... 6

Typical Performance Characteristics ............................................. 7

Tes t Ci rc u it s ....................................................................................... 8

REVISION HISTORY

6/04—Data Sheet Changed from Rev. A to Rev. B

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

Added 5-Lead SOT-23 Package ........................................ Universal

Updated Outline Dimensions........................................................10

Changes to Ordering Guide...........................................................11

8/98—Data Sheet Changed from Rev. 0 to Rev. A

Applications Information .................................................................9

ADG701/ADG702 Supply Voltages............................................9

On Response vs. Frequency .........................................................9

Off Isolation ...................................................................................9

Outline Dimensions....................................................................... 10

Ordering Guide .......................................................................... 11

Rev. B | Page 2 of 12

ADG701/ADG702

SPECIFICATIONS

VDD = 5 V ± 10%, GND = 0 V. Temperature range for B version is −40°C to +85°C, unless otherwise noted.

Table 1.

B Version
Parameter +25°C –40°C to +85°C Unit Test Conditions/Comments

ANALOG SWITCH

Analog Signal Range 0 V to V

DD

On Resistance (RON) 2 Ω typ VS = 0 V to VDD, IS = –10 mA; Figure 11
3 4 Ω max
On-Resistance Flatness (R

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

FLAT(ON)

1.0 Ω max
LEAKAGE CURRENTS VDD = 5.5 V

Source OFF Leakage, IS (OFF) ±0.01 nA typ VS = 4.5 V/1 V, VD = 1 V/4.5 V; Figure 12
±0.25 ±0.35 nA max
Drain OFF Leakage, ID (OFF) ±0.01 nA typ VS = 4.5 V/1 V, VD = 1 V/4.5 V; Figure 12
±0.25 ±0.35 nA max
Channel ON Leakage, ID, IS (ON) ±0.01 nA typ VS = VD = 1 V, or 4.5 V; Figure 13
±0.25 ±0.35 nA max

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 = V

±0.1 µA max

DYNAMIC CHARACTERISTICS

t

ON

1

12 ns typ RL = 300 Ω , CL = 35 pF
18 ns max VS = 3 V; Figure 14
t

OFF

8 ns typ RL = 300 Ω , CL = 35 pF
12 ns max VS = 3 V; Figure 14
Charge Injection 5 pC typ VS = 2 V, RS = 0 Ω , CL = 1 nF; Figure 15
Off Isolation –55 dB typ RL = 50 Ω , CL = 5 pF, f = 10 MHz
–75 dB typ RL = 50 Ω , CL = 5 pF, f = 1 MHz; Figure 16
Bandwidth –3 dB 200 MHz typ RL = 50 Ω , CL = 5 pF; Figure 17
CS (OFF) 17 pF typ
CD (OFF) 17 pF typ
CD, CS (ON) 38 pF typ

POWER REQUIREMENTS VDD = 5.5 V
Digital inputs = 0 V or 5 V

I

DD

0.001 µA typ

1.0 µA max

V

or V

INL

INH

1

Guaranteed by design, not subject to production test.

Rev. B | Page 3 of 12

ADG701/ADG702

VDD = 3 V ±10%, GND = 0 V. Temperature range for B version is −40°C to +85°C, unless otherwise noted.

Table 2.

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

ANALOG SWITCH

Analog Signal Range 0 V to V

DD

On Resistance (RON) 3.5 Ω typ VS = 0 V to VDD, IS = −10 mA; Figure 11
5 6 Ω max
On-Resistance Flatness (R

) 1.5 Ω typ VS = 0 V to VDD, IS = −10 mA

FLAT(ON)

LEAKAGE CURRENTS VDD = 3.3 V

Source OFF Leakage IS(OFF) ±0.01 nA typ VS = 3 V/1 V, VD = 1 V/3 V; Figure 12
±0.25 ±0.35 nA max
Drain OFF Leakage ID(OFF) ±0.01 nA typ VS = 3 V/1 V, VD = 1 V/3 V; Figure 12
±0.25 ±0.35 nA max
Channel ON Leakage ID, IS(ON) ±0.01 nA typ V = VD = 1 V, or 3 V; Figure 13
±0.25 ±0.35 nA max

DIGITAL INPUTS

Input High Voltage, V
Input Low Voltage, V

INH

INL

2.0 V min

0.4 V max
Input Current
I

or I

INL

INH

0.005 µA typ VIN = V
±0.1 µA max

DYNAMIC CHARACTERISTICS

t

ON

1

14 ns typ RL = 300 Ω , CL = 35 pF
20 ns max VS = 2 V, Figure 14
t

OFF

8 ns typ RL = 300 Ω , CL = 35 pF
13 ns max VS = 2 V, Figure 14
Charge Injection 4 pC typ VS = 1.5 V, RS = 0 Ω , CL = 1 nF; Figure 15

Off Isolation −55 dB typ RL = 50 Ω , CL = 5 pF, f = 10 MHz

−75 dB typ RL = 50 Ω , CL = 5 pF, f = 1 MHz; Figure 16

Bandwidth −3 dB 200 MHz typ RL = 50 Ω , CL = 5 pF; Figure 17

CS (OFF) 17 pF typ
CD (OFF) 17 pF typ
CD, CS (ON) 38 pF typ

POWER REQUIREMENTS VDD = 3.3 V
Digital Inputs = 0 V or 3 V

I

DD

0.001 µA typ

1.0 µA max

1

Guaranteed by design, not subject to production test.

V

or V

INL

INH

Rev. B | Page 4 of 12

ADG701/ADG702

ABSOLUTE MAXIMUM RATINGS

TA = +25°C, unless otherwise noted.

Table 3.

Parameter Rating

VDD to GND −0.3 V to +7 V
Analog, Digital Inputs1

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

Operating Temperature Range

Industrial (B Version) −40°C to +85°C
Storage Temperature Range −65°C to +150°C
Junction Temperature 150°C
MSOP Package, Power Dissipation 315 mW

θJA Thermal Impedance 206°C/W

θJC Thermal Impedance 44°C/W
SOT-23 Package, Power Dissipation 282 mW

θJA Thermal Impedance 229.6°C/W

θJC Thermal Impedance 91.99°C/W
Lead Temperature, Soldering

Vapor Phase (60 sec) 215°C

Infrared (15 sec) 220°C
ESD 2 kV

−0.3 V to V
or 30 mA, whichever
occurs first

100 mA, pulsed at 1 ms,
10% duty cycle max

+0.3 V

DD

1

Overvoltages at IN, S, or D are clamped by internal diodes. Current should be

limited to the maximum ratings given.

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.

Table 4. Truth Table

ADG701 In ADG702 In Switch Condition

0 1 OFF
1 0 ON

ESD 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 this product 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.

Rev. B | Page 5 of 5

ADG701/ADG702

V

G

G

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

1

D

ADG701/

NC

2

ADG702

NC

3

TOP VIEW

4

(Not to Scale)

DD

NC = NO CONNECT

1

S

8

GND

7

IN

6
5

NC

00039-002

1

D

ADG701/

2

S

ADG702

TOP VIEW

ND

3

(Not to Scale)

NC = NO CONNECT

6

V

DD

NC

5

IN

4

00039-003

D

S

ND

ADG701/

2

ADG702

TOP VIEW

3

(Not to Scale)

5

4

Figure 2. 8-Lead MSOP Figure 3. 6-Lead SOT-23 Figure 4. 5-Lead SOT-23

Table 5. Pin Descriptions

Term Description

V

DD

Most positive power supply potential.
GND Ground (0 V) Reference.
S Source Terminal. May be an input or output.
D Drain Terminal. May be an input or output.
IN Logic Control Input.
R

ON

R

FLAT(ON)

Ohmic resistance between D and S.

Flatness is defined as the difference between the maximum and minimum value of on resistance as measured

over the specified analog signal range.
IS (OFF) Source Leakage Current with the Switch OFF.
ID (OFF) Drain Leakage Current with the Switch OFF.
ID, IS (ON) Channel Leakage Current with the Switch ON.
VD (VS) Analog Voltage on Terminals D and S.
CS (OFF) OFF Switch Source Capacitance.
CD (OFF) OFF Switch Drain Capacitance.
CD, CS (ON) ON Switch Capacitance.
t

ON

t

OFF

Delay between applying the digital control input and the output switching on. See Figure 14.

Delay between applying the digital control input and the output switching off.
Off Isolation A measure of unwanted signal coupling through an OFF switch.
Charge Injection A measure of the glitch impulse transferred from the digital input to the analog output during switching.
Bandwidth The frequency at which the output is attenuated by −3 dBs.
On Response The frequency response of the ON switch.
On Loss

The voltage drop across the ON switch seen in Figure 10 as the number of dBs the signal is from 0 dB at very low

frequencies.

V

DD

IN

00039-004

Rev. B | Page 6 of 12

ADG701/ADG702

TYPICAL PERFORMANCE CHARACTERISTICS

3.5

3.0

VDD = 2.7V

T

A

= 25°C

10m

1m

VDD = 5V

2.5
VDD = 3.0V

2.0

(Ω)

ON

1.5

R

1.0

0.5

0

V

= 5.0V

DD

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

VD OR VS– DRAIN OR SOURCE VOLTAGE (V)

Figure 5. On Resistance as a Function of V

3.5

3.0

2.5

2.0

(Ω)

ON

1.5

R

1.0

0.5

0

0 0.5 1.0 1.5 2.0 2.5 3.0

VD OR VS– DRAIN OR SOURCE VOLTAGE (V)

+85°C

+25°C

–40°C

Figure 6. On Resistance as a Function of V

V

= 3 V

DD

3.5

3.0

V

= 4.5V

DD

(VS) Single Supplies

D

V

= 3V

DD

(VS) for Different Temperatures

D

VDD = 5V

00039-005

00039-006

100µ

10µ

(A)

1µ

SUPPLY

I

100n

10n

1n

10 100 1k 10k 100k 1M 10M

FREQUENCY (Hz)

Figure 8. Supply Current vs. Input Switching Frequency

–10

VDD = 5V, 3V

–20

–30

–40

–50

–60

–70

–80

OFF ISOLATION (dB)

–90

–100

–110

10k 100k 1M 10M 100M

FREQUENCY (Hz)

Figure 9. Off Is olation vs. Fre quency

0

VDD = 3V

00039-008

00039-009

2.5

2.0

(Ω)

ON

1.5

R

1.0

0.5

0

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

VD OR VS– DRAIN OR SOURCE VOLTAGE (V)

+85°C

+25°C

–40°C

Figure 7. On Resistance as a Function of V

V

= 5 V

DD

(VS) for Different Temperatures

D

00039-007

Rev. B | Page 7 of 12

–2

–4

ON RESPONSE (dB)

–6

10k 100k 1M 10M 100M

FREQUENCY (Hz)

Figure 10. On Response vs. Frequency

00039-010

ADG701/ADG702

V

V

V

V

TEST CIRCUITS

I

DS

V1

SD

IS(OFF) ID(OFF)

SD

A A

SD

ID (ON)

A

V

S

RON = V1/I

DS

00039-011

S

V

D

00039-012

S

Figure 11. On Resistance Figure 12. Off Leakage Figure 13. On Leakage

V

DD

0.1µF
V

IN

V

ADG701

DD

V

C

L

35pF

OUT

V

IN

ADG702

V

OUT

SD

R

V

S

IN

GND

L

300Ω

50% 50%

50% 50%

90% 90%

t

ON

t

OFF

00039-014

Figure 14. Switching Times

V

DD

V

DD

R

S

V

S

S

IN

GND

D

C

L

1nF

V

ADG701

IN

V

OUT

V

ADG702

IN

V

OUT

ON OFF

Q

= CL×∆V

INJ

OUT

∆V

OUT

Figure 15. Charge Injection

0.1µF

DD

0.1µF

V

DD

00039-015

V

D

00039-013

V

DD

V

R
50Ω

OUT

L

V

IN

00039-016

S

SD

IN

V

V

S

IN

GND

Figure 16. Off Isolation

V

DD

SD

IN

GND

Figure 17. Bandwidth

R
50Ω

V

OUT

L

00039-017

Rev. B | Page 8 of 12

ADG701/ADG702

APPLICATIONS INFORMATION

The ADG701/ADG702 belong to Analog Devices’ new family
of CMOS switches. This series of general-purpose switches
have improved switching times, lower on resistance, higher
bandwidth, low power consumption, and low leakage currents.

ADG701/ADG702 SUPPLY VOLTAGES

Functionality of the ADG701/ADG702 extends from 1.8 V to

5.5 V single supply, making the parts ideal for battery-powered
instruments, where power efficiency and performance are
important design parameters.

It is important to note that the supply voltage affects the input
signal range, the on resistance, and the switching times of the
part. The effects of the power supplies can be clearly seen in the
Typical Performance Characteristics and the Specifications
sections.

= 1.8 V operation, RON is typically 40 Ω over the

For V

DD

temperature range.

ON RESPONSE VS. FREQUENCY

Figure 18 illustrates the parasitic components that affect the ac
performance of CMOS switches (a box surrounds the switch).
Additional external capacitances further degrade some per­formance. These capacitances affect feedthrough, crosstalk,
and system bandwidth.

C

DS

SD

R

ON

C

V

IN

Figure 18. Switch Represented by Equivalent Parasitic Components

D

C

LOADRLOAD

The transfer function that describes the equivalent diagram of
the switch (Figure 18) is of the form (A)s shown below.

⎤

1)(

+

DSON

RCRs

⎥

1)(

+

TT

⎦

Where C

)(

T

=

= C

⎡

RsA

⎢

T

⎣

LOAD

CRs

ON

+ CD + CDS.

V

OUT

00039-018

The signal transfer characteristic is dependent on the switch
channel capacitance, C

. This capacitance creates a frequency

DS

zero in the numerator of the transfer function A(s). Because the
switch on resistance is small, this zero usually occurs at high
frequencies. The bandwidth is a function of the switch output
capacitance combined with C

and the load capacitance. The

DS

frequency pole corresponding to these capacitances appears in
the denominator of A(s).

The dominant effect of the output capacitance, C

, causes the

D

pole breakpoint frequency to occur first. In order to maximize
bandwidth, a switch must have a low input and output capaci­tance and low on resistance. The on response versus frequency
for the ADG701/ADG702 can be seen in Figure 10.

OFF ISOLATION

Off isolation is a measure of the input signal coupled through
an off switch to the switch output. The capacitance, C
the input signal to the output load, when the switch is off, as
shown in Figure 19.

C

DS

SD

V

IN

Figure 19. Off Isolation Is Affected by External Load Resistance and

C

Capacitance

C

D

LOADRLOAD

The larger the value of CDS, the larger the values of feedthrough
produced. Figure 9 illustrates the drop in off isolation as a
function of frequency. From dc to roughly 1 MHz, the switch
shows better than −75 dB isolation. Up to frequencies of 10
MHz, the off isolation remains better than −55 dB. As the
frequency increases, more and more of the input signal is
coupled through to the output. Off isolation can be maximized
by choosing a switch with the smallest C

possible. The values

DS

of load resistance and capacitance also affect off isolation, as
they contribute to the coefficients of the poles and zeros in the
transfer function of the switch when open.

⎡

RsA

=

)(

⎢

T

⎣

CRs

LOAD

⎤

+

1)(

DSLOAD

CRs

⎥

+

1))((

T

⎦

, couples

DS

V

OUT

00039-019

Rev. B | Page 9 of 12

ADG701/ADG702

OUTLINE DIMENSIONS

3.00

BSC

85

3.00
BSC

PIN 1

0.65 BSC

0.15

0.00

0.38

0.22

COPLANARITY

0.10
COMPLIANT TO JEDEC STANDARDS MO-187AA

4

SEATING
PLANE

4.90
BSC

1.10 MAX

0.23

0.08

8°
0°

0.80

0.60

0.40

Figure 20. 8-Lead Mini Small Outline Package [MSOP]

(RM-8)

Dimensions shown in millimeters

2.90 BSC

1.90
BSC

0.50

0.30

45

2.80 BSC

2

0.95 BSC

1.45 MAX

SEATING
PLANE

0.22

0.08
10°

0.60

4°

0.45

0°

0.30

1.60 BSC

PIN 1

INDICATOR

1.30

1.15

0.90

0.15MAX

6

1 3

COMPLIANT TO JEDEC STANDARDS MO-178AB

Figure 21. 6-Lead Plastic Surface Mount Package [SOT-23]

(RT-6)

Dimensions shown in inches and (millimeters)

Rev. B | Page 10 of 12

ADG701/ADG702

2.90 BSC

4 5

0.50

0.30

3

2.80 BSC

0.95 BSC

1.45 MAX

SEATING
PLANE

(RJ-5)

0.22

0.08
10°

5°
0°

0.60

0.45

0.30

1.60 BSC

1

2

PIN 1

1.30

1.15

0.90

0.15MAX

Figure 22. 5-Lead Plastic Surface Mount Package [SOT-23]

1.90

BSC

COMPLIANT TO JEDEC STANDARDS MO-178AA

Dimensions shown in inches and (millimeters)

ORDERING GUIDE

Model Temperature Range Package Descriptions Package Options Brand

ADG701BRJ-500RL7
ADG701BRJ-REEL
ADG701BRJ-REEL7
ADG701BRM
ADG701BRM-REEL
ADG701BRM-REEL7
ADG701BRT
ADG701BRT-REEL
ADG701BRT-REEL7
ADG701BRTZ-REEL
ADG701BRTZ-REEL72
ADG702BRJ-500RL7
ADG702BRJ-REEL
ADG702BRJ-REEL7
ADG702BRM
ADG702BRM-REEL
ADG702BRM-REEL7
ADG702BRT
ADG702BRT-REEL
ADG702BRT-REEL7
ADG702BRTZ-REEL2
ADG702BRTZ-REEL72

2

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

−40°C to +85°C

1

Brand = Due to package size limitations, these three characters represent the part number.

2

Z = Pb-free part.

SOT-23 (Plastic Surface Mount) RJ-5 S3B
SOT-23 (Plastic Surface Mount) RJ-5 S3B
SOT-23 (Plastic Surface Mount) RJ-5 S3B
MSOP (Small Outline) RM-8 S3B
MSOP (Small Outline) RM-8 S3B
MSOP (Small Outline) RM-8 S3B
SOT-23 (Plastic Surface Mount) RT-6 S3B
SOT-23 (Plastic Surface Mount) RT-6 S3B
SOT-23 (Plastic Surface Mount) RT-6 S3B
SOT-23 (Plastic Surface Mount) RT-6 S3B
SOT-23 (Plastic Surface Mount) RT-6 S3B
SOT-23 (Plastic Surface Mount) RJ-5 S4B
SOT-23 (Plastic Surface Mount) RJ-5 S4B
SOT-23 (Plastic Surface Mount) RJ-5 S4B
MSOP (Small Outline) RM-8 S4B
MSOP (Small Outline) RM-8 S4B
MSOP (Small Outline) RM-8 S4B
SOT-23 (Plastic Surface Mount) RT-6 S4B
SOT-23 (Plastic Surface Mount) RT-6 S4B
SOT-23 (Plastic Surface Mount) RT-6 S4B
SOT-23 (Plastic Surface Mount) RT-6 S4B
SOT-23 (Plastic Surface Mount) RT-6 S4B

1

Rev. B | Page 11 of 12

ADG701/ADG702

NOTES

© 2004 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.

C00039–0–6/04(B)

Rev. B | Page 12 of 12