ADG5412BF Datasheet, PDF (1/28 Pages) Analog Devices – Bidirectional Fault Protection and Detection, 10 ohm RON, Quad SPST Switches

Data Sheet
Bidirectional Fault Protection and
Detection, 10 Ω R_ON, Quad SPST Switches
ADG5412BF/ADG5413BF
FEATURES
Overvoltage protection up to −55 V and +55 V
Power-off protection up to −55 V and +55 V
Overvoltage detection on source and drain pins
Low on resistance: 10 Ω
On-resistance flatness of 0.5 Ω
3 kV human body model (HBM) ESD rating
Latch-up immune under any circumstance
Known state without digital inputs present
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
APPLICATIONS
Analog input/output modules
Process control/distributed control systems
Data acquisition
Instrumentation
Avionics
Automatic test equipment
Communication systems
Relay replacement
GENERAL DESCRIPTION
The ADG5412BF and ADG5413BF contain four independently
controlled single-pole/single-throw (SPST) switches. The
ADG5412BF has four switches that turn on with Logic 1 inputs.
The ADG5413BF has two switches that turn on and two switches
that turn off with Logic 1 inputs. Each switch conducts equally
well in both directions when on, and each switch 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.
When no power supplies are present, the switch remains in the
off condition, and the switch inputs are high impedance. Under
normal operating conditions, if the analog input signal levels on
any switch pin exceed VDD or VSS by a threshold voltage, VT, the
switch turns off. Input signal levels up to +55 V and −55 V relative
to ground are blocked, in both the powered and unpowered
condition.
FUNCTIONAL BLOCK DIAGRAMS
ADG5412BF
S1
D1
S2
D2
S3
D3
S4
D4
FAULT
DETECTION
+ SWITCH
FF
DRIVER
IN1 IN2 IN3 IN4
NOTES
1. SWITCHES SHOWN FOR A LOGIC 1 INPUT.
Figure 1. ADG5412BF
ADG5413BF
S1
D1
S2
D2
S3
D3
S4
D4
FAULT
DETECTION
+ SWITCH
FF
DRIVER
IN1 IN2 IN3 IN4
NOTES
1. SWITCHES SHOWN FOR A LOGIC 1 INPUT.
Figure 2. ADG5413BF
The low on resistance of these switches, combined with on-
resistance flatness over a significant portion of the signal range
make them an ideal solution for data acquisition and gain switching
applications where excellent linearity and low distortion are critical.
PRODUCT HIGHLIGHTS
1. Switch pins are protected against voltages greater than the
supply rails, up to −55 V and +55 V.
2. Switch pins are protected against voltages between −55 V
and +55 V, in an unpowered state.
3. Overvoltage detection with digital output indicates
operating state of switches.
4. Trench isolation guards against latch-up.
5. Optimized for low on resistance and on-resistance flatness.
6. The ADG5412BF/ADG5413BF 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.
Rev. B
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