ADG709 AD [Analog Devices], ADG709 Datasheet

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ADG709

Manufacturer Part Number
ADG709
Description
CMOS, 3 ohm Low Voltage 4-/8-Channel Multiplexers
Manufacturer
AD [Analog Devices]
Datasheet

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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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
GENERAL DESCRIPTION
The ADG708 and ADG709 are low voltage, CMOS analog
multiplexers comprising eight single channels and four differential
channels respectively. The ADG708 switches one of eight inputs
(S1–S8) to a common output, D, as determined by the 3-bit
binary address lines A0, A1, and A2. The ADG709 switches one
of four differential inputs to a common differential output as
determined by the 2-bit binary address lines A0 and A1. An EN
input on both devices is used to enable or disable the device. When
disabled, all channels are switched OFF.
Low power consumption and operating supply range of 1.8 V to
5.5 V make the ADG708 and ADG709 ideal for battery-powered,
portable instruments. All channels exhibit break-before-make
switching action preventing momentary shorting when switch-
ing channels.
These switches are designed on an enhanced submicron process
that provides low power dissipation yet gives high switching
speed, very low on-resistance and leakage currents. On-resistance
is in the region of a few ohms and is closely matched between
switches and very flat over the full signal range. These parts can
operate equally well as either Multiplexers or Demultiplexers,
and have an input signal range that extends to the supplies.
The ADG708 and ADG709 are available in a 16-lead TSSOP
package.
FEATURES
1.8 V to 5.5 V Single Supply
3
0.75
100 pA Leakage Currents
14 ns Switching Times
Single 8-to-1 Multiplexer ADG708
Differential 4-to-1 Multiplexer ADG709
16-Lead TSSOP Package
Low Power Consumption
TTL/CMOS-Compatible Inputs
APPLICATIONS
Data Acquisition Systems
Communication Systems
Relay Replacement
Audio and Video Switching
Battery-Powered Systems
3 V Dual Supply
On-Resistance
On-Resistance Flatness
PRODUCT HIGHLIGHTS
1. Single/Dual Supply Operation. The ADG708 and ADG709
2. Low R
3. Low Power Consumption (<0.01 W).
4. Guaranteed Break-Before-Make Switching Action.
5. Small 16-Lead TSSOP Package.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
are fully specified and guaranteed with 3 V and 5 V single
supply and 3 V dual supply rails.
S8
S1
ON
4-/8-Channel Multiplexers
A0
FUNCTIONAL BLOCK DIAGRAMS
(3
ADG708
DECODER
A1
CMOS, 3
1 OF 8
Typical).
A2
World Wide Web Site: http://www.analog.com
EN
ADG708/ADG709
D
S1A
S4A
S1B
S4B
© Analog Devices, Inc., 2000
A0
Low Voltage
ADG709
DECODER
1 OF 4
A1
EN
DA
DB

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ADG709 Summary of contents

Page 1

... The ADG708 switches one of eight inputs (S1–S8 common output determined by the 3-bit binary address lines A0, A1, and A2. The ADG709 switches one of four differential inputs to a common differential output as determined by the 2-bit binary address lines A0 and A1 input on both devices is used to enable or disable the device ...

Page 2

... Bandwidth C (OFF (OFF) D ADG708 ADG709 (ON ADG708 ADG709 POWER REQUIREMENTS I DD NOTES 1 Temperature range is as follows: B and C Versions: – + Guaranteed by design, not subject to production test. Specifications subject to change without notice Version C Version – ...

Page 3

... ADG708/ADG709 Unit Test Conditions/Comments V typ mA max Test Circuit 1 typ max typ ...

Page 4

... S C (OFF) D ADG708 85 ADG709 (ON ADG708 96 ADG709 48 POWER REQUIREMENTS I 0.001 DD I 0.001 SS NOTES 1 Temperature range is as follows: B and C Versions: – + Guaranteed by design, not subject to production test. Specifications subject to change without notice –3 V 10%, GND = 0 V) ...

Page 5

... 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 ADG708/ADG709 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 6

... ADG708/ADG709 V Most positive power supply potential Most negative power supply in a dual supply SS application. In single supply applications, this should be tied to ground at the device. 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. ...

Page 7

... Temperatures, Dual Supply 0. 0.08 0.04 0.00 +25 C –0.04 –0.08 –0. for Differ- Figure 6. Leakage Currents as a Function –7– ADG708/ADG709 +85 C – 0.5 1.0 1.5 2.0 2 – DRAIN OR SOURCE VOLTAGE – +85 C –40 C –0 ...

Page 8

... ADG708/ADG709 0.12 0.08 0.04 0.00 I (OFF) –0.04 S –0.08 –0.12 0 0.5 1.0 1 – Volts D S) Figure 7. Leakage Currents as a Function of V 0.12 0.08 0.04 0.00 I (OFF) –0.04 S –0.08 –0.12 –3.0 –2.5 –2.0 –1.5 –1.0 –0.5 0 0.5 1 – Volts D S) Figure 8. Leakage Currents as a Function of V 0.35 0.30 0.25 0.20 0.15 I 0.10 D 0.05 0.00 –0. TEMPERATURE – C Figure 9 ...

Page 9

... – – + –3V SS –30 –40 2 –3 –2 – VOLTAGE – Volts Figure 15. Charge Injection vs. Source Voltage –9– ADG708/ADG709 100k 1M 10M FREQUENCY – 100M ...

Page 10

... EN GND * SIMILAR CONNECTION FOR ADG709 Test Circuit 5. Switching Time of Multiplexer THRU S7 A0 ADG708 2.4V EN GND * SIMILAR CONNECTION FOR ADG709 0. ADDRESS DRIVE ( OUT ...

Page 11

... Test Circuit 10. Channel-to-Channel Crosstalk –11– ADG708/ADG709 50% 50% t (EN) OFF 0.9V 0. (EN) ON (EN) OFF V OUT INJ L OUT 2. ADG708 * OUT GND CHANNEL-TO-CHANNEL CROSSTALK = 20LOG 10 * SIMILAR CONNECTION FOR ADG709 OUT V S ...

Page 12

... ADG708/ADG709 0.006 (0.15) 0.002 (0.05) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 16-Lead TSSOP (RU-16) 0.201 (5.10) 0.193 (4.90 PIN 1 0.0433 (1.10) MAX 8° 0.0118 (0.30) 0.0256 0° SEATING 0.0079 (0.20) (0.65) 0.0075 (0.19) PLANE BSC 0.0035 (0.090) –12– 0.028 (0.70) 0.020 (0.50) REV. 0 ...

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