ADG821 Analog Devices, ADG821 Datasheet

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ADG821

Manufacturer Part Number
ADG821
Description
Manufacturer
Analog Devices
Datasheet

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a
GENERAL DESCRIPTION
The ADG821, ADG822, and ADG823 are monolithic CMOS
SPST (single pole, single throw) switches. These switches are
designed on an advanced submicron process that provides low
power dissipation, yet gives high switching speed, low on
resistance, and low leakage currents.
The ADG821, ADG822, and ADG823 are designed to operate
from a single 1.8 V to 5.5 V supply, making them ideal for use
in battery-powered instruments.
Each switch of the ADG821/ADG822/ADG823 conducts equally
well in both directions when on. The ADG821, ADG822, and
ADG823 contain two independent SPST switches. The ADG821
and ADG822 differ only in that both switches are normally open
and normally closed, respectively. In the ADG823, Switch 1 is
normally open and Switch 2 is normally closed. The ADG823
exhibits break-before-make switching action.
The ADG821, ADG822, and ADG823 are available in an 8-lead
MSOP package.
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. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
FEATURES
0.8
0.28
1.8 V to 5.5 V Single Supply
200 mA Current Carrying Capability
Automotive Temperature Range: –40 C to +125 C
Rail-to-Rail Operation
8-Lead MSOP Package
33 ns Switching Times
Typical Power Consumption (<0.01 W)
TTL/CMOS Compatible Inputs
Pin Compatible with ADG721/722/723
APPLICATIONS
Power Routing
Battery-Powered Systems
Communication Systems
Data Acquisition Systems
Audio and Video Signal Routing
Cellular Phones
Modems
PCMCIA Cards
Hard Drives
Relay Replacement
Max On Resistance @125 C
Max On Resistance Flatness @125 C
PRODUCT HIGHLIGHTS
1. Very Low On Resistance (0.5 Ω typ)
2. On Resistance Flatness (R
3. Automotive Temperature Range –40°C to +125°C
4. 200 mA Current Carrying Capability
5. Low Power Dissipation. CMOS construction ensures low
6. 8-Lead MSOP Package
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
IN2
D1
S1
power dissipation.
ADG821/ADG822/ADG823
<1 Ω CMOS 1.8 V to 5.5 V,
ADG821
FUNCTIONAL BLOCK DIAGRAM
IN2
SWITCHES SHOWN FOR A LOGIC “0”
D1
S1
Dual SPST Switches
IN1
D2
S2
ADG823
FLAT(ON)
INPUT
IN2
D1
S1
) (0.15 Ω typ)
© Analog Devices, Inc., 2002
IN1
D2
S2
ADG822
www.analog.com
IN1
D2
S2

Related parts for ADG821

ADG821 Summary of contents

Page 1

... In the ADG823, Switch 1 is normally open and Switch 2 is normally closed. The ADG823 exhibits break-before-make switching action. The ADG821, ADG822, and ADG823 are available in an 8-lead MSOP package. REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable ...

Page 2

... ADG821/ADG822/ADG823–SPECIFICATIONS Parameter ANALOG SWITCH Analog Signal Range On Resistance ( Resistance Match Between Channels (∆ Resistance Flatness (R ) FLAT(ON) LEAKAGE CURRENTS Source OFF Leakage I (OFF) S Drain OFF Leakage I (OFF) D Channel ON Leakage (ON DIGITAL INPUTS Input High Voltage, V INH Input Low Voltage, V ...

Page 3

... ADG821/ADG822/ADG823 1 Unit Test Conditions/Comments V Ω typ 100 mA Ω max Test Circuit 1 Ω typ Ω max 100 Ω typ ...

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 ADG821/ADG822/ADG823 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. θ ...

Page 5

... The Frequency Response of the ON Switch Insertion Loss The Loss due to the On Resistance of the Switch REV. 0 ADG821/ADG822/ADG823 PIN CONFIGURATION 8-Lead MSOP (RM- TOP VIEW (Not to Scale) 2 IN1 D1 7 ADG821/ IN2 ADG822/ ADG823 GND TERMINOLOGY max – R min –5– ...

Page 6

... ADG821/ADG822/ADG823–Typical Performance Characteristics 0 2. 3. 4.5V DD 0.5 0.4 0 5. 5. – TPC 1. On Resistance vs 0.8 0.7 +125 C 0.6 +85 C 0.5 0.4 0.3 +25 C –40 C 0.2 0 0.5 1.0 1.5 2.0 2.5 3 – TPC 4. On Resistance vs for Different Temperatures ...

Page 7

... REV. 0 1.8 1.6 1.4 V RISING 1.2 IN 1.0 V FALLING IN 0.8 0.6 0.4 0 – TPC 11. Logic Threshold Voltage vs. Suppply Voltage –7– ADG821/ADG822/ADG823 0.050 P 0.045 600 0.040 0.035 0.030 0.025 0.020 0.015 0.010 0.005 20 100 1K 10K FREQUENCY – Hz TPC 12. THD ...

Page 8

... IN1, IN2 V IN GND Test Circuit 5. Break-Before-Make Time Delay (OFF) I (OFF Test Circuit 2. Off Leakage V DD ADG821 OUT ADG822 35pF V OUT GND Test Circuit 4. Switching Times D1 V OUT1 ...

Page 9

... Test Circuit 9. Channel-to-Channel Crosstalk REV. 0 NETWORK ANALYZER OUT 0 GND V OUT V S –9– ADG821/ADG822/ADG823 V DD 0.1 F NETWORK V ANALYZER OUT GND V WITH SWITCH OUT INSERTION LOSS = 20 LOG V WITHOUT SWITCH OUT Test Circuit 8. Bandwidth ...

Page 10

... ADG821/ADG822/ADG823 OUTLINE DIMENSIONS 8-Lead MSOP Package [MSOP] (RM-8) Dimensions shown in millimeters 3.00 BSC 8 5 4.90 3.00 BSC BSC 1 4 PIN 1 0.65 BSC 1.10 MAX 0.15 0.00 8 0.38 0.23 0 0.22 0.08 SEATING PLANE COMPLIANT TO JEDEC STANDARDS MO-187AA –10– 0.80 0.40 REV. 0 ...

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