ADG714BRU Analog Devices Inc, ADG714BRU Datasheet - Page 14

• Manufacturer Part Number: ADG714BRU
• Description: IC SWITCH OCTAL SPST 24TSSOP
• Manufacturer: Analog Devices Inc

Specifications of ADG714BRU

• Rohs Status: RoHS non-compliant
• Function: Switch
• Circuit: 8 x SPST - NO
• On-state Resistance: 4.5 Ohm
• Voltage Supply Source: Single, Dual Supply
• Voltage - Supply, Single/dual (±): 2.7 V ~ 5.5 V, ±1.35 V ~ 2.5 V
• Current - Supply: 10µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP (0.173", 4.40mm Width)

ADG714/ADG715
APPLICATIONS
Multiple Devices On One Bus
Figure 6 shows four ADG715 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 switch to be written to or
read from independently.
Daisy-Chaining Multiple ADG714s
A number of ADG714 switches may be daisy-chained simply by
using the DOUT pin. Figure 7 shows a typical implementation.
The SYNC pin of all three parts in the example are tied
together. When SYNC is brought low, the input shift registers
of all parts are enabled, data is written to the parts via DIN, and
clocked through the shift registers. When the transfer is complete,
SYNC is brought high and all switches are updated simulta-
neously. Further shift registers may be added in series.
MASTER
Figure 7. Multiple ADG714 Devices in a Daisy-Chained Configuration
SYNC
SCLK
A1
A0
SDA
DIN
ADG715
SCL
R
Figure 6. Multiple ADG715s On One Bus
SYNC
SCLK
DIN
P
ADG714
V
DD
DOUT
R
P
V
A1
A0
SDA
DD
ADG715
V
DD
R
SCL
SYNC
SCLK
DIN
–14–
ADG714
-
V
Power Supply Sequencing
When using CMOS devices, care must be taken to ensure correct
power-supply sequencing. Incorrect power-supply sequencing
can result in the device being subjected to stresses beyond those
maximum ratings listed in the data sheet. Digital and analog inputs
should always be applied after power supplies and ground. In dual
supply applications, if digital or analog inputs may be applied to
the device prior to the V
Schottky diode connected between V
that the device powers on correctly. For single supply operation,
V
Decoding Multiple ADG714s Using an ADG739
The dual 4-channel ADG739 multiplexer can be used to multiplex
a single chip select line to provide chip selects for up to four
DOUT
DD
SS
should be tied to GND as close to the device as possible.
V
DD
A1
A0
SDA
R
ADG715
SYNC
SCLK
DIN
ADG714
SCL
DOUT
V
V
DD
DD
TO
OTHER
SERIAL
DEVICES
DD
R
A1
A0
SDA
and V
ADG715
SS
SCL
supplies, the addition of a
SS
SDA
SCL
and GND will ensure
REV. B