Fault Protection, −0.4 pC QINJ,
8:1/Dual 4:1 Multiplexers
Data Sheet
ADG5208F/ADG5209F
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
Overvoltage protection up to −55 V and +55 V
Power-off protection up to −55 V and +55 V
Overvoltage detection on source pins
Low charge injection (QINJ): −0.4 pC
Low on capacitance
ADG5208F
S1
D
ADG5208F: 20 pF
ADG5209F: 14 pF
Latch-up immune under any circumstance
Known state without digital inputs present
S8
1-OF-8
DECODER
VSS to VDD analog signal range
5 V to 22 V dual-supply operation
8 V to 44 V single-supply operation
Fully specified at 15 V, 20 V, +12 V, and +36 V
A0 A1 A2 EN
Figure 1. ADG5208F Functional Block Diagram
APPLICATIONS
ADG5209F
Analog input/output modules
Process control/distributed control systems
Data acquisition
S1A
DA
S4A
Instrumentation
Avionics
S1B
Automatic test equipment
Communication systems
Relay replacement
DB
S4B
1-OF-4
DECODER
A0 A1 EN
Figure 2. ADG5209F Functional Block Diagram
GENERAL DESCRIPTION
The ADG5208F and ADG5209F are 8:1 and dual 4:1 analog
multiplexers. The ADG5208F switches one of eight inputs to a
common output, and the ADG5209F switches one of four
differential inputs to a common differential output. An EN input
on both devices enables or disables the device. Each channel
conducts equally well in both directions when on, and each
channel has an input signal range that extends to the supplies.
The digital inputs are compatible with 3 V logic inputs over the
full operating supply range.
Input signal levels of up to −55 V or +55 V relative to ground are
blocked, in both the powered and unpowered conditions.
The low capacitance and charge injection of these switches make
them ideal solutions for data acquisition and sample-and-hold
applications, where low glitch switching and fast settling times
are required.
PRODUCT HIGHLIGHTS
1. The source pins are protected against voltages greater than
the supply rails, up to −55 V and +55 V.
2. The source pins are protected against voltages between
−55 V and +55 V in an unpowered state.
3. Trench isolation guards against latch-up.
4. Optimized for low charge injection and on capacitance.
5. The ADG5208F/ADG5209F can be operated from a dual
supply of 5 V up to 22 V or a single power supply of 8 V
up to 44 V.
When no power supplies are present, the channel remains in the off
condition, and the switch inputs are high impedance. Under normal
operating conditions, if the analog input signal levels on any Sx pin
exceed positive fault voltage (VDD) or negative fault voltage (VSS)
by a threshold voltage (VT), the channel turns off and that Sx pin
becomes high impedance. If the fault channel is selected, the drain
pin is pulled to the secondary supply voltage that was exceeded.
Rev. A
Document Feedback
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. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2015–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com