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Product Detailed Parameters
- Description：IC SWITCH SP8T 200OHM 16SOIC
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SP8T
- Multiplexer/Demultiplexer Circuit：8:01
- On-State Resistance (Max)：200Ohm
- Channel-to-Channel Matching (ΔRon)：2.4Ohm
- Voltage - Supply, Single (V+)：10V ~ 36V
- Voltage - Supply, Dual (V±)：±5V ~ 18V
- Switch Time (Ton, Toff) (Max)：210ns, 191ns
- -3db Bandwidth：-
- Charge Injection：2pC
- Channel Capacitance (CS(off), CD(off))：5pF, 24pF
- Current - Leakage (IS(off)) (Max)：1nA
- Crosstalk：-96dB @ 1MHz
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The PS508WEX is a CMOS analog multiplexer manufactured by Diodes Incorporated, housed in a 16-pin SOIC package. It provides eight single-ended channels with a 8:1 configuration. The device supports dual supplies from ±5V to ±18V or a single supply from 10V to 36V. Key electrical parameters include a maximum on-resistance of 200Ω at ±15V and 430Ω at +12V, an input leakage current of 1nA, and a transition time of 310ns. Supply current is typically 135µA. The component operates within a temperature range of -40°C to +125°C.
Feature Summary
- Rail-to-rail signal handling capability across the full supply voltage range.
- Break-before-make switching action prevents signal overlap during channel transitions.
- TTL and CMOS logic compatible digital inputs for versatile interface integration.
- Low charge injection minimizes signal distortion when switching high-impedance sources.
Applications
- Factory automation and industrial process control systems
- Programmable Logic Controllers (PLC)
- Analog input modules
- ATE test equipment
- Digital multimeters
Procurement Notes
Verify the specific ordering suffix 'WEX' corresponds to the 16-pin SOIC package and tape-and-reel packaging format as defined in the manufacturer's ordering guide. Confirm RoHS compliance and lead-free status requirements against project specifications before finalizing procurement orders.
Selection Notes
Select this component for applications requiring eight single-ended analog channels. Ensure the system supply voltage falls between 10V and 36V. Verify that the required on-resistance and leakage current specifications are met under the intended operating temperature conditions. Consider the PS509 if differential signaling is required instead.
Part Context
This part belongs to the PS508/PS509 family of precision analog multiplexers from Diodes Incorporated. The PS508 variant specifically handles single-ended signals, while the PS509 variant supports differential or dual single-ended configurations. Both share identical pinouts and core electrical characteristics.
Replacement Considerations
Direct substitutes include the PS508LEX (TSSOP package) and PS508QEX (QSOP package). Other manufacturers offer functionally similar parts such as the MUX508IDR or DG508AEWE+, though pin compatibility and electrical tolerances must be verified.
FAQ
Can the VSS pin be connected to ground?
Yes, in single-supply applications where VDD ranges from 10V to 36V, the VSS pin can be connected to ground (0V).
What is the ESD protection rating?
The device offers Human-Body Model (HBM) ESD protection rated at 2000V per ANSI/ESDA/JEDEC JS-001.
How does the EN pin function?
The EN pin is an active-high digital input. When low, all switches turn off. When high, the address lines (A0-A2) determine which channel is active.
