adg749 Analog Devices, Inc., adg749 Datasheet

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adg749

Manufacturer Part Number
adg749
Description
Cmos 1.8 V To 5.5 V, 2.5  2 1 Mux/spdt Switch In Sc70 Package
Manufacturer
Analog Devices, Inc.
Datasheet

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a
GENERAL DESCRIPTION
The ADG749 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 ADG749 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 ADG749 conducts equally well in both
directions when on. The ADG749 exhibits break-before-make
switching action.
Because of the advanced submicron process, –3 dB bandwidths
of greater than 200 MHz can be achieved.
The ADG749 is available in a 6-lead SC70 package.
REV. A
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.
FEATURES
1.8 V to 5.5 V Single Supply
5
0.75
Automotive Temperature Range: –40 C to +125 C
–3 dB Bandwidth > 200 MHz
Rail-to-Rail Operation
6-Lead SC70 Package
Fast Switching Times:
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
t
t
ON
OFF
(Max) On Resistance
= 12 ns
= 6 ns
(Typ) On Resistance Flatness
2:1 MUX/SPDT Switch in SC70 Package
PRODUCT HIGHLIGHTS
1. 1.8 V to 5.5 V Single-Supply Operation. The ADG749 offers
2. Very Low R
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
7. Fast t
8. Tiny 6-lead SC70 package.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
high performance, including low on resistance and fast
switching times, and is fully specified and guaranteed with
3 V and 5 V supply rails.
At 1.8 V operation, R
ture range.
power dissipation.
ON
CMOS 1.8 V to 5.5 V, 2.5
/t
OFF.
FUNCTIONAL BLOCK DIAGRAM
*SWITCHES SHOWN FOR A LOGIC “1” INPUT
ON
(5 Ω Max at 5 V and 10 Ω Max at 3 V).
S2
S1
IN
ON
is typically 40 Ω over the tempera-
ADG749
FLAT(ON)
) (0.75 Ω typ).
© Analog Devices, Inc., 2002
D
ADG749
www.analog.com

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adg749 Summary of contents

Page 1

... The ADG749 can operate from a single-supply range of 1 5.5 V, making it ideal for use in battery-powered instruments and with the new generation of DACs and ADCs from Analog Devices. ...

Page 2

... ADG749–SPECIFICATIONS Parameter ANALOG SWITCH Analog Signal Range On Resistance ( Resistance Match Between Channels (∆ Resistance Flatness (R ) FLAT(ON) 2 LEAKAGE CURRENTS Source Off Leakage I (Off) S Channel On Leakage (On DIGITAL INPUTS Input High Voltage, V INH Input Low Voltage, V INL Input Current ...

Page 3

... Test Circuit Ω typ pF MHz Ω typ pF MHz Test Circuit Ω, C MHz typ pF; Test Circuit typ pF typ Digital Inputs = 3.3 V µA typ µA max ADG749 = ...

Page 4

... 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 ADG749 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 ...

Page 5

... TEMPERATURE – C TPC 4. Leakage Currents vs. Temperature (ON (OFF TEMPERATURE – C TPC 5. Leakage Currents vs. Temperature 100 1k 10k 100k 1M FREQUENCY – Hz ADG749 3V/1V = 1V/ 10M 100M ...

Page 6

... ADG749 – 5V –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 10k 100k 1M FREQUENCY – Hz TPC 7. Off Isolation vs. Frequency –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 10k 100k 1M FREQUENCY – Hz TPC 8. Crosstalk vs. Frequency 0 –2 – ...

Page 7

... OFF ON V 50% 50 50% 50% V OUT 0 GND V OUT INSERTION LOSS = 20 LOG V S Test Circuit 8. Bandwidth ADG749 I (ON NETWORK ANALYZER OUT WITH SWITCH OUT V WITHOUT SWITCH OUT ...

Page 8

... This series of general-purpose switches has improved switching times, lower on resistance, higher bandwidths, low power consumption, and low leakage currents. ADG749 Supply Voltages Functionality of the ADG749 extends from 1 5.5 V single supply, which makes it ideal for battery-powered instruments, where power efficiency and performance are important design parameters. ...

Page 9

... MAX COPLANARITY REV. A OUTLINE DIMENSIONS 6-Lead Plastic Surface Mount Package [SC70] (KS-6) Dimensions shown in millimeters 2.00 BSC 2.10 BSC 1.25 BSC PIN 1 0.65 BSC 1.30 BSC 1.00 1.10 MAX 0.90 0.70 0.22 0.08 0.30 SEATING 0.15 PLANE COMPLIANT TO JEDEC STANDARDS MO-203AB –9– ADG749 0.46 0. 0.26 0 ...

Page 10

... ADG749 Revision History Location 7/02—Data Sheet changed from REV REV. A. Changes to FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Additions to PRODUCT HIGHLIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Changes to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Edits to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Changes to TERMINOLOGY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Edits to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Added new TPCs 4 and Added TPC TEST CIRCUITS 6, 7, and 8 replaced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Updated KS-6 Package Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 – ...

Page 11

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