SPI Interface, Octal SPST Switches,
13.5 Ω RON, ±20 V/+36 V, Mux
SPI interface with error detection
Includes CRC, invalid read/write address, and SCLK count
Supports burst and daisy-chain mode
Industry-standard SPI Mode 0 and Mode 3 interface-
Guaranteed break-before-make switching, allowing external
wiring of switches to deliver multiplexer configurations
VSS to VDD analog signal range
Fully specified at ±15 V, ±20 V, +12 V, and +36 V
9 V to 40 V single-supply operation (VDD)
±9 V to ±22 V dual-supply operation (VDD/VSS)
8 kV HBM ESD rating
Low on resistance
1.8 V logic compatibility with 2.7 V ≤ VL ≤ 3.3 V
Automatic test equipment
Audio and video switching
FUNCTIONAL BLOCK DIAGRAM
SCLK SDI CS RESET/VL
The ADGS5414 contains eight independent single-pole/single-
throw (SPST) switches. An SPI interface controls the switches
and has robust error detection features, including cyclic
redundancy check (CRC) error detection, invalid read/write
address error detection, and SCLK count error detection.
It is possible to daisy-chain multiple ADGS5414 devices together.
This enables the configuration of multiple devices with a minimal
amount of digital lines. The ADGS5414 can also operate in burst
mode to decrease the time between SPI commands.
Each switch conducts equally well in both directions when on, and
each switch has an input signal range that extends to the supplies.
In the off condition, signal levels up to the supplies are blocked.
The on-resistance profile is flat over the full analog input range,
ensuring ideal linearity and low distortion when switching
audio signals. The ADGS5414 exhibits break-before-make
switching action, allowing the use of the device in multiplexer
applications with external wiring.
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1. The SPI interface removes the need for parallel conversion,
logic traces, and reduces the general-purpose input/output
(GPIO) channel count.
2. Daisy-chain mode removes the need for additional logic
traces when using multiple devices.
3. CRC error detection, invalid read/write address error
detenction, and SCLK count error detection ensures a
robust digital interface.
4. CRC and error detection capabilities allow the use of the
ADGS5414 in safety critical systems.
5. Break-before-make switching allows external wiring of the
switches to deliver multiplexer configurations.
6. The trench isolation analog switch section guards against
latch-up. A dielectric trench separates the positive and
negative channel transistors, preventing latch-up even under
severe overvoltage conditions.
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