Analog Devices ADG884 Datasheet

0.5 Ω CMOS Dual

FEATURES

1.8 V to 5.5 V operation Ultralow on resistance:

0.34 Ω typical

0.38 Ω max at 5 V supply

Excellent audio performance, ultralow distortion:

0.1 Ω typical

0.15 Ω max R

High current-carrying capability:

400 mA continuous

600 mA peak current at 5 V supply Rail-to-rail switching operation Typical power consumption (<0.1 µW)

APPLICATIONS

Cellular phones PDAs MP3 players Power routing Battery-powered systems PCMCIA cards Modems Audio and video signal routing Communications systems

GENERAL DESCRIPTION

The ADG884 is a low voltage CMOS device containing two independently selectable single-pole, double-throw (SPDT) switches. This device offers ultralow on resistance of less than

0.4 Ω over the full temperature range, making the part an ideal solution for applications that require minimal distortion through the switch. The ADG884 also has the capability of carrying large amounts of current, typically 600 mA at 5 V operation.

The ADG884 is available in a 10 bump, 2.0 mm × 1.50 mm WLCSP package, a 10-lead LFCSP package, and a 10-lead MSOP package. These tiny packages make the ADG884 the ideal solution for space-constrained applications.

When on, each switch conducts equally well in both directions and has an input signal range that extends to the supplies. The ADG884 exhibits break-before-make switching action.

flatness

ON

2:1 MUX/SPDT Audio Switch

ADG884

FUNCTIONAL BLOCK DIAGRAM

ADG884

S1A

S1B

IN1

IN2

S2A

S2B

SWITCHES SHOWN FOR A LOGIC 1 INPUT

Figure 1.

PRODUCT HIGHLIGHTS

1. Single 1.8 V to 5.5 V operation.

2. High current handling capability (400 mA continuous current at 3.3 V).

3. 1.8 V logic-compatible.

4. Low THD + N (0.01% typ).

5. Tiny 2 mm × 1.5 mm WLCSP package and 3 mm × 3 mm 10-lead LFCSP package.

Table 1. ADG884 Truth Table

Logic (IN1/IN2) Switch 1A/2A Switch 1B/2B

0 Off On 1 On Off

D1

D2

05028-001

Rev. 0

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.

www.analog.com

ADG884

TABLE OF CONTENTS

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

Te r mi n ol o g y .................................................................................... 11

Absolute Maximum Ratings............................................................ 6

ESD Caution.................................................................................. 6

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

Typical Performance Characteristics ............................................. 8

REVISION HISTORY

10/04—Revision 0: Initial Version

Test C ir c ui t s..................................................................................... 12

Outline Dimensions ....................................................................... 14

Ordering Guide .......................................................................... 15

Rev. 0 | Page 2 of 16

ADG884

SPECIFICATIONS

VDD = 5 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 On Resistance, R

ON

0.28 Ω typ VDD = 4.5 V, VS = 0 V to VDD, IS = 100 mA

0.34 0.38 Ω max See Figure 18 On Resistance Match Between 0.01 Ω typ VDD = 4.5 V, VS = 2 V, IS = 100 mA

Channels, ∆R

ON

On Resistance Flatness, R

(ON) 0.1 Ω typ VDD = 4.5 V, VS = 0 V to V

FLAT

0.035 0.05 Ω max

0.13 0.15 Ω max IS = 100 mA LEAKAGE CURRENTS VDD = 5.5 V

Source Off Leakage, IS (OFF) ±0.2 nA typ VS = 0.6 V/4.5 V, VD = 4.5 V/0.6 V; Figure 19 Channel On Leakage, ID, IS (ON) ±0.2 nA typ VS = VD = 0.6 V or 4.5 V; Figure 20

DIGITAL INPUTS

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

or I

INL

INH

INL

INH

2.0 V min

0.8 V max

0.005 µA typ VIN = V ±0.1 µA max Digital Input Capacitance, C

DYNAMIC CHARACTERISTICS

t

ON

IN

2

2 pF typ

42 ns typ RL = 50 Ω, CL = 35 pF 50 53 ns max VS = 3 V/0 V; Figure 21 t

15 ns typ RL = 50 Ω, CL = 35 pF

OFF

20 21 ns max VS = 3 V; Figure 21 Break-Before-Make Time Delay, t

BBM

16 ns typ RL = 50 Ω, CL = 35 pF 10 ns min VS1 = VS2 = 1.5 V; Figure 22 Charge Injection 125 pC typ VS = 1.5 V, RS = 0 Ω, CL = 1 nF; Figure 23 Off Isolation −60 dB typ

Channel-to-Channel Crosstalk −120 dB typ

−60 dB typ

Total Harmonic Distortion, THD + N 0.017 %

Insertion Loss −0.03 dB typ RL = 50 Ω, CL = 5 pF; Figure 25

−3 dB Bandwidth 18 MHz typ RL = 50 Ω, CL = 5 pF; Figure 25 CS (OFF) 103 pF typ CD, CS (ON) 295 pF typ

POWER REQUIREMENTS VDD = 5.5 V

I

DD

0.003 µA typ Digital Inputs = 0 V or 5.5 V

1 µA max

1

Temperature range of the B version is −40°C to +85°C.

2

Guaranteed by design, not subject to production test.

1

DD

V

or V

INL

= 50 Ω, CL = 5 pF, f = 100 kHz;

R

L

DD

INH

Figure 24 S1A−S2A/S1B−S2B; R

= 50 Ω, CL = 5 pF,

L

f = 100 kHz; Figure 27 S1A−S1B/S2A−S2B; R

= 50 Ω, CL = 5 pF,

L

f = 100 kHz; Figure 26

= 32 Ω, f = 20 Hz to 20 kHz,

R

L

V

= 3.5 V p-p

S

Rev. 0 | Page 3 of 16

ADG884

VDD = 3.4 V to 4.2 V; GND = 0 V, unless otherwise noted.

Table 3.

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

ANALOG SWITCH

Analog Signal Range 0 V to V On Resistance, R

ON

0.33 Ω typ VDD = 3.4 V, VS = 0 V to VDD, IS = 100 mA

0.38 0.45 Ω max See Figure 18 On Resistance Match Between 0.013 Ω typ VDD = 3.4 V, VS = 2 V, IS = 100 mA

Channels, ∆R

ON

On Resistance Flatness, R

(ON) 0.13 Ω typ VDD = 3.4 V, VS = 0 V to V

FLAT

0.042 0.065 Ω max

0.155 0.175 Ω max IS = 100 mA LEAKAGE CURRENTS VDD = 4.2 V

Source Off Leakage, IS (OFF) ±0.2 nA typ VS = 0.6 V/3.9 V, VD = 3.9 V/0.6 V; Figure 19 Channel On Leakage, ID, IS (ON) ±0.2 nA typ VS = VD = 0.6 V or 3.9 V; Figure 20

DIGITAL INPUTS

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

or I

INL

INH

INL

INH

2.0 V min

0.8 V max

0.005 µA typ VIN = V ±0.1 µA max Digital Input Capacitance, C

DYNAMIC CHARACTERISTICS

t

ON

IN

2

2 pF typ

42 ns typ RL = 50 Ω, CL = 35 pF 50 54 ns max VS = 1.5 V/0 V; Figure 21 t

15 ns typ RL = 50 Ω, CL = 35 pF

OFF

21 24 ns max VS = 1.5 V; Figure 21 Break-Before-Make Time Delay, t

BBM

17 ns typ RL = 50 Ω, CL = 35 pF 10 ns min VS1 = VS2 = 1.5 V; Figure 22 Charge Injection 100 pC typ VS = 1.5 V, RS = 0 Ω, CL = 1 nF; Figure 23 Off Isolation −60 dB typ

Channel-to-Channel Crosstalk −120 dB typ

−60 dB typ

Total Harmonic Distortion, THD + N 0.01 %

Insertion Loss −0.03 dB typ RL = 50 Ω, CL = 5 pF; Figure 25

−3 dB Bandwidth 18 MHz typ RL = 50 Ω, CL = 5 pF; Figure 25 CS (OFF) 110 pF typ CD, CS (ON) 300 pF typ

POWER REQUIREMENTS VDD = 4.2 V

I

DD

0.003 µA typ Digital Inputs = 0 V or 4.2 V

1 µA max

1

Temperature range of the B version is −40°C to +85°C.

2

Guaranteed by design, not subject to production test.

1

DD

V

or V

INL

= 50 Ω, CL = 5 pF, f = 100 kHz;

R

L

DD

INH

Figure 24 S1A−S2A/S1B−S2B; R

= 50 Ω, CL = 5 pF,

L

f = 100 kHz; Figure 27 S1A−S1B/S2A−S2B; R

= 50 Ω, CL = 5 pF,

L

f = 100 kHz; Figure 26

= 32 Ω, f = 20 Hz to 20 kHz,

R

L

V

= 2 V p-p

S

Rev. 0 | Page 4 of 16

ADG884

VDD = 2.7 V to 3.6 V, GND = 0 V, unless otherwise noted.

Table 4.

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

ANALOG SWITCH

Analog Signal Range 0 V to V On Resistance, R

ON

0.4 Ω typ VDD = 2.7 V, VS = 0 V to V

0.5 0.6 Ω max IS = 100 mA; Figure 18 On Resistance Match Between 0.02 Ω typ VDD = 2.7 V, VS = 0.6 V

Channels, ∆R

ON

On Resistance Flatness, R

(ON) 0.18 Ω typ VDD = 2.7 V, VS = 0 V to V

FLAT

0.07 0.1 Ω max IS = 100 mA

0.25 Ω max IS = 100 mA LEAKAGE CURRENTS VDD = 3.6 V

Source Off Leakage, IS (OFF) ±0.2 nA typ VS = 0.6 V/3.3 V, VD = 3.3 V/0.6 V, Figure 19 Channel On Leakage, ID, IS (ON) ±0.2 nA typ VS = VD = 0.6 V or 3.3 V; Figure 20

DIGITAL INPUTS

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

or I

INL

INH

INL

INH

1.3 V min

0.8 V max

0.005 µA typ VIN = V ±0.1 µA max Digital Input Capacitance, C

DYNAMIC CHARACTERISTICS

t

ON

IN

2

2 pF typ

42 ns typ RL = 50 Ω, CL = 35 pF 56 62 ns max VS = 1.5 V/0 V; Figure 21 t

14 ns typ RL = 50 Ω, CL = 35 pF

OFF

19 21 ns max VS = 1.5 V; Figure 21 Break-Before-Make Time Delay, t

BBM

24 ns typ RL = 50 Ω, CL = 35 pF 10 ns min VS1 = VS2 = 1.5 V; Figure 22 Charge Injection 85 pC typ VS = 1.25 V, RS = 0 Ω, CL = 1 nF; Figure 23 Off Isolation −60 dB typ RL = 50 Ω, CL = 5 pF, f = 100 kHz; Figure 24 Channel-to-Channel Crosstalk −120 dB typ

−60 dB typ

Total Harmonic Distortion, THD + N 0.03 % RL = 32 Ω, f = 20 Hz to 20 kHz, VS = 1.5 V p-p Insertion Loss −0.03 dB typ RL = 50 Ω, CL = 5 pF; Figure 25

–3 dB Bandwidth 18 MHz typ RL = 50 Ω, CL = 5 pF; Figure 25 CS (OFF) 110 pF typ CD, CS (ON) 300 pF typ

POWER REQUIREMENTS VDD = 3.6 V

I

DD

0.003 µA typ Digital Inputs = 0 V or 3.6 V

1 µA max

1

Temperature range of the B version is −40°C to +85°C.

2

Guaranteed by design, not subject to production test.

1

DD

V

or V

INL

INH

S1A−S2A/S1B−S2B; R

DD

= 50 V, CL = 5 pF,

L

f = 100 kHz; Figure 27 S1A−S1B/S2A−S2B; R

= 50 Ω, CL = 5 pF,

L

f = 100 kHz; Figure 25

Rev. 0 | Page 5 of 16