ADG729BRUZ Analog Devices Inc, ADG729BRUZ Datasheet

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ADG729BRUZ

Manufacturer Part Number
ADG729BRUZ
Description
IC MUX/DEMUX DUAL 4X1 16TSSOP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of ADG729BRUZ

Function
Multiplexer/Demultiplexer
Circuit
2 x 4:1
On-state Resistance
4.5 Ohm
Voltage Supply Source
Single Supply
Voltage - Supply, Single/dual (±)
2.7 V ~ 5.5 V
Current - Supply
10µA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP (0.173", 4.40mm Width)
No. Of Circuits
2
Supply Current
10µA
On State Resistance Max
2.5ohm
Supply Voltage Range
2.7V To 5.5V
Operating Temperature Range
-40°C To +85°C
Analog Switch Case Style
TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Quantity
Price
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a
I
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
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.
2
C is a trademark of Philips Corporation.
2
C™ interface standard. Both have two
Serially-Controlled, Matrix Switches
PRODUCT HIGHLIGHTS
1. 2-Wire Serial Interface.
2. Single Supply Operation. The ADG728 and ADG729 are
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.
fully specified and guaranteed with 3 V and 5 V supply rails.
S1
S8
CMOS, Low-Voltage, 2-Wire
SDA
INPUT SHIFT
REGISTER
FUNCTIONAL BLOCK DIAGRAMS
ADG728
SCL
A0
A1
ADG728/ADG729
RESET
D
S1A
S4A
S1B
S4B
INPUT SHIFT
SDA SCL A0
REGISTER
ADG729
A1
DA
DB

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ADG729BRUZ Summary of contents

Page 1

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 ...

Page 2

ADG728/ADG729–SPECIFICATIONS Parameter ANALOG SWITCH Analog Signal Range On Resistance ( On-Resistance Match Between Channels (∆ On-Resistance Flatness (R ) FLAT(ON) LEAKAGE CURRENTS Source OFF Leakage I (OFF) S Drain OFF Leakage I (OFF) D Channel ON ...

Page 3

SPECIFICATIONS (V DD Parameter ANALOG SWITCH Analog Signal Range On Resistance ( On-Resistance Match Between Channels (∆ On-Resistance Flatness (R ) FLAT(ON) LEAKAGE CURRENTS Source OFF Leakage I (OFF) S Drain OFF Leakage I (OFF) ...

Page 4

ADG728/ADG729 TIMING CHARACTERISTICS Parameter Limit MIN MAX f 400 SCL 100 0 0 0.6 8 ...

Page 5

ADG728 ADG729 Mnemonic 1 1 SCL RESET SDA Sxx 10, 11, 12 10, 11, 12, 13 Sxx GND ...

Page 6

ADG728/ADG729 1 ABSOLUTE MAXIMUM RATINGS (T = 25°C unless otherwise noted GND . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 7

Typical Performance Characteristics–ADG728/ADG729 ...

Page 8

ADG728/ADG729 160 140 OFF DD 120 100 OFF –40 –20 ...

Page 9

GENERAL DESCRIPTION The ADG728 and ADG729 are serially controlled, 8-channel and dual 4-channel matrix switches respectively. While provid- ing the normal multiplexing and demultiplexing functions, these devices also provide the user with more flexibility as to where their signal may ...

Page 10

ADG728/ADG729 WRITE OPERATION When writing to the ADG728/ADG729, the user must begin with an address byte and R/W bit, after which the switch will acknowledge that it is prepared to receive data by pulling SDA low. This address byte is ...

Page 11

MULTIPLE DEVICES ON ONE BUS Figure 20 shows four ADG728s devices on the same serial bus. Each has a different slave address since the state of their A0 and A1 pins is different. This allows each Matrix Switch to be ...

Page 12

ADG728/ADG729 V V ADG728 INPUT LOGIC SDA * SIMILAR CONNECTION FOR ADG729 ADG728 GND * SIMILAR CONNECTION FOR ADG729 CHANNEL-TO-CHANNEL CROSSTALK = 20LOG SEATING ...

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