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ADG728BRUZ

P1-P3P4-P6P7-P9P10-P12P13-P13
ADG728/ADG729
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
CMOS, Low Voltage, 2-Wire
Serially Controlled, Matrix Switches
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 www.analog.com
Fax: © Analog Devices, Inc.,
FUNCTIONAL BLOCK DIAGRAMS
S1
S8
SDA
D
SCL
ADG728
S1A
DA
S4A
S1B
S4B
DB
ADG729
RESET
INPUT SHIFT
REGISTER
INPUT SHIFT
REGISTER
A0 A1 SDA SCL A0 A1
GENERAL DESCRIPTION
The ADG728 and ADG729 are CMOS analog matrix switches
with a serially controlled 2-wire interface. The ADG728 is an
8-channel matrix switch, while the ADG729 is a dual 4-channel
matrix switch. On resistance is closely matched between switches
and very flat over the full signal range. These parts can operate
equally well as either multiplexers, demultiplexers or switch
arrays and the input signal range extends to the supplies.
The ADG728 and ADG729 utilize a 2-wire serial interface that
is compatible with the I
2
C™ interface standard. Both have two
external address pins (A0 and A1). This allows the 2 LSBs of
the 7-bit slave address to be set by the user. Four of each of the
devices can be connected to the one bus. The ADG728 also has
a RESET pin that should be tied high if not in use.
Each channel is controlled by one bit of an 8-bit word. This
means that these devices may be used in a number of different
configurations; all, any, or none of the channels may be on at
any one time.
On power-up of the device, all switches will be in the OFF con-
dition and the internal shift register will contain all zeros.
All channels exhibit break-before-make switching action pre-
venting momentary shorting when switching channels.
The ADG728 and ADG729 are available in 16-lead TSSOP
packages.
PRODUCT HIGHLIGHTS
1. 2-Wire Serial Interface.
2. Single Supply Operation. The ADG728 and ADG729 are
fully specified and guaranteed with 3 V and 5 V supply rails.
3. Low On Resistance 2.5 Ω typical.
4. Any configuration of switches may be on at any one time.
5. Guaranteed Break-Before-Make Switching Action.
6. Small 16-Lead TSSOP Package.
REV. C
APPLICATIONS
Data Acquisition Systems
Communications Systems
Relay Placement
Audio and Video Switching
Automatic Test Equipment
FEATURES
2-Wire Serial Interface
2.7 V to 5.5 V Single Supply
2.5 Ω On Resistance
0.75 Ω On-Resistance Flatness
100 pA Leakage Currents
Single 8-to-1 Matrix Switch ADG728
Dual 4-to-1 Matrix Switch ADG729
Power-On Reset
Small 16-Lead TSSOP Package
Qualified for Automotive Applications
2012
781/461-3113
–2–
ADG728/ADG729–SPECIFICATIONS
1
(V
DD
= 5 V ⴞ 10%, GND = 0 V, unless otherwise noted.)
B Version
–40ⴗC
Parameter 25ⴗC to +85ⴗC Unit Test Conditions/Comments
ANALOG SWITCH
Analog Signal Range 0 V to V
DD
V
On Resistance (R
ON
) 2.5 Ω typ V
S
= 0 V to V
DD
, I
S
= 10 mA;
4.5 5 Ω max Test Circuit 1
On-Resistance Match Between 0.4 Ω typ V
S
= 0 V to V
DD
, I
S
= 10 mA
Channels (∆R
ON
) 0.8 Ω max
On-Resistance Flatness (R
FLAT(ON)
) 0.75 Ω typ V
S
= 0 V to V
DD
, I
S
= 10 mA
1.2 Ω max
LEAKAGE CURRENTS V
DD
= 5.5 V
Source OFF Leakage I
S
(OFF) ± 0.01 nA typ V
D
= 4.5 V/1 V, V
S
= 1 V/4.5 V, Test Circuit 2
± 0.1 ± 0.3 nA max
Drain OFF Leakage I
D
(OFF) ± 0.01 nA typ V
D
= 4.5 V/1 V, V
D
= 1 V/4.5 V, Test Circuit 3
± 0.1 ± 1 nA max
Channel ON Leakage I
D
, I
S
(ON) ± 0.01 nA typ V
D
= V
S
= 4.5 V/1 V, Test Circuit 4
± 0.1 ± 1 nA max
LOGIC INPUTS (A0, A1)
2
Input High Voltage, V
INH
2.4 V min
Input Low Voltage, V
INL
0.8 V max
Input Current
I
INL
or I
INH
0.005 µA typ
± 0.1 µA max
C
IN
, Input Capacitance 6 pF typ
LOGIC INPUTS (SCL, SDA)
2
Input High Voltage, V
INH
0.7 V
DD
V min
V
DD
+ 0.3 V max
Input Low Voltage, V
INL
–0.3 V min
0.3 V
DD
V max
I
IN
, Input Leakage Current 0.005 µA typ V
IN
= 0 V to V
DD
± 1.0 µA max
V
HYST
, Input Hysteresis 0.05 V
DD
V min
C
IN
, Input Capacitance 6 pF typ
LOGIC OUTPUT (SDA)
2
V
OL
, Output Low Voltage 0.4 V max I
SINK
= 3 mA
0.6 V max I
SINK
= 6 mA
DYNAMIC CHARACTERISTICS
2
t
ON
95 ns typ R
L
= 300 Ω, C
L
= 35 pF, Test Circuit 5;
140 ns max V
S1
= 3 V
t
OFF
85 ns typ V
S1
= 3 V, R
L
= 300 Ω, C
L
= 35 pF;
130 ns max Test Circuit 5
Break-Before-Make Time Delay, t
D
8 ns typ R
L
= 300 Ω, C
L
= 35 pF;
1ns minV
S1
= V
S2
= 3 V, Test Circuit 5
Charge Injection ± 3 pC typ V
S
= 2.5 V, R
S
= 0 Ω, C
L
= 1 nF;
Test Circuit 6
Off Isolation –55 dB typ R
L
= 50 Ω, C
L
= 5 pF, f = 10 MHz;
–75 dB typ R
L
= 50 Ω, C
L
= 5 pF, f = 1 MHz;
Test Circuit 8
Channel-to-Channel Crosstalk –55 dB typ R
L
= 50 Ω, C
L
= 5 pF, f = 10 MHz;
–75 dB typ R
L
= 50 Ω, C
L
= 5 pF, f = 1 MHz;
Test Circuit 7
–3 dB Bandwidth
ADG728 65 MHz typ R
L
= 50 Ω, C
L
= 5 pF, Test Circuit 8
ADG729 100 MHz typ
C
S
(OFF) 13 pF typ
C
D
(OFF)
ADG728 85 pF typ
ADG729 42 pF typ
C
D
, C
S
(ON)
ADG728 96 pF typ
ADG729 48 pF typ
POWER REQUIREMENTS V
DD
= 5.5 V
I
DD
10 µA typ Digital Inputs = 0 V or 5.5 V
20 µA max
N
OTES
1
Temperature range is as follows: B Version: –40°C to +85°C.
2
Guaranteed by design, not subject to production test.
REV. C
–3–
ADG728/ADG729
(V
DD
= 3 V ⴞ 10%, GND = 0 V, unless otherwise noted.)
SPECIFICATIONS
1
B Version
–40ⴗC
Parameter 25ⴗC to +85ⴗC Unit Test Conditions/Comments
ANALOG SWITCH
Analog Signal Range 0 V to V
DD
V
On Resistance (R
ON
)6 Ω typ V
S
= 0 V to V
DD
, I
S
= 10 mA;
11 12 Ω max Test Circuit 1
On-Resistance Match Between 0.4 Ω typ V
S
= 0 V to V
DD
, I
S
= 10 mA
Channels (∆R
ON
) 1.2 Ω max
On-Resistance Flatness (R
FLAT(ON)
) 3.5 Ω typ V
S
= 0 V to V
DD
, I
S
= 10 mA
LEAKAGE CURRENTS V
DD
= 3.3 V
Source OFF Leakage I
S
(OFF) ± 0.01 nA typ V
S
= 3 V/1 V, V
D
= 1 V/3 V, Test Circuit 2
± 0.1 ±0.3 nA max
Drain OFF Leakage I
D
(OFF) ± 0.01 nA typ V
D
= 3 V/1 V, V
D
= 1 V/3 V, Test Circuit 3
± 0.1 ±1 nA max
Channel ON Leakage I
D
, I
S
(ON) ± 0.01 nA typ V
D
= V
S
= 3 V/1 V, Test Circuit 4
± 0.1 ±1 nA max
LOGIC INPUTS (A0, A1)
2
Input High Voltage, V
INH
2.0 V min
Input Low Voltage, V
INL
0.4 V max
Input Current
I
INL
or I
INH
0.005 µA typ
± 0.1 µA max
C
IN
, Input Capacitance 3 pF typ
LOGIC INPUTS (SCL, SDA)
2
Input High Voltage, V
INH
0.7 V
DD
V min
V
DD
+ 0.3 V max
Input Low Voltage, V
INL
–0.3 V min
0.3 V
DD
V max
I
IN
, Input Leakage Current 0.005 µA typ V
IN
= 0 V to V
DD
± 1.0 µA max
V
HYST
, Input Hysteresis 0.05 V
DD
V min
C
IN
, Input Capacitance 3 pF typ
LOGIC OUTPUT (SDA)
2
V
OL
, Output Low Voltage 0.4 V max I
SINK
= 3 mA
0.6 V max I
SINK
= 6 mA
DYNAMIC CHARACTERISTICS
2
t
ON
130 ns typ R
L
= 300 Ω, C
L
= 35 pF, Test Circuit 5;
200 ns max V
S1
= 2 V
t
OFF
115 ns typ R
L
= 300 Ω, C
L
= 35 pF;
180 ns max V
S
= 2 V, Test Circuit 5
Break-Before-Make Time Delay, t
D
8 ns typ R
L
= 300 Ω, C
L
= 35 pF;
1ns minV
S1
= V
S8
= 2 V, Test Circuit 5
Charge Injection ± 3 pC typ V
S
= 1.5 V, R
S
= 0 Ω, C
L
= 1 nF;
Test Circuit 6
Off Isolation –55 dB typ R
L
= 50 Ω, C
L
= 5 pF, f = 10 MHz;
–75 dB typ R
L
= 50 Ω, C
L
= 5 pF, f = 1 MHz;
Test Circuit 8
Crosstalk –55 dB typ R
L
= 50 Ω, C
L
= 5 pF, f = 10 MHz;
–75 dB typ R
L
= 50 Ω, C
L
= 5 pF, f = 1 MHz;
Test Circuit 7
–3 dB Bandwidth
ADG728 65 MHz typ R
L
= 50 Ω, C
L
= 5 pF, Test Circuit 8
ADG729 100 MHz typ
C
S
(OFF) 13 pF typ
C
D
(OFF)
ADG728 85 pF typ
ADG729 42 pF typ
C
D
, C
S
(ON)
ADG728 96 pF typ
ADG729 48 pF typ
POWER REQUIREMENTS V
DD
= 3.3 V
I
DD
10 µA typ Digital Inputs = 0 V or 3.3 V
20 µA max
NOTES
1
Temperature ranges are as follows: B Versions: –40°C to +85°C.
2
Guaranteed by design, not subject to production test.
P1-P3P4-P6P7-P9P10-P12P13-P13

ADG728BRUZ

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Buy ADG728BRUZ
Manufacturer:
Analog Devices Inc.
Description:
Multiplexer Switch ICs 8:1 65MHz 2.5 Ohm CMOS Serial Cntrld
Lifecycle:
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