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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX4 18OHM 16SOIC
- Series：-
- Mfr：Diodes Incorporated
- Package：Bag
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：18Ohm
- Channel-to-Channel Matching (ΔRon)：400mOhm
- Voltage - Supply, Single (V+)：2V ~ 6V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：20ns, 10ns
- -3db Bandwidth：200MHz
- Charge Injection：5pC
- Channel Capacitance (CS(off), CD(off))：13pF
- Current - Leakage (IS(off)) (Max)：30nA
- Crosstalk：-72dB @ 30MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Number of Circuits：4
- Grade：-
- Qualification：-
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Overview
The PI5A391AW is a precision wide bandwidth quad analog switch from Diodes Incorporated, housed in a 16-pin QSOP package. It operates on a single supply voltage ranging from +2V to +6V and supports an industrial temperature range of -40°C to +85°C. The device features four normally closed (NC) SPST channels with a typical on-resistance of 6 ohms at 5V and a maximum of 18 ohms. Key dynamic parameters include a turn-on time of 10ns typical (20ns max), crosstalk of -72dB at 30MHz, and a -3dB bandwidth exceeding 200MHz. It offers low charge injection of 4pC typical and high channel current capability greater than 100mA.
Feature Summary
- Rail-to-rail analog signal range operation for low-distortion switching
- TTL/CMOS logic compatible control interface
- High-current channel capability exceeding 100mA
- Very low crosstalk performance at 30 MHz
Applications
- Audio and video signal switching and routing
- Battery-powered communication systems
- Programmable integrators and sample-and-hold circuits
- Mechanical relay replacement
- Portable instrumentation
Procurement Notes
Verify the specific ordering suffix 'W' against the manufacturer's official documentation to confirm the 16-pin SOIC package variant, as datasheets indicate both QSOP and SOIC options within the PI5A39X family. Confirm RoHS compliance status directly with the supplier or manufacturer before procurement. Ensure the component meets the required industrial temperature specifications for the intended deployment environment.
Selection Notes
Select the PI5A391AW when a quad SPST normally closed configuration is required for single-supply applications. This part is suitable for designs needing rail-to-rail signal handling and high bandwidth. Compare on-resistance flatness and leakage current requirements against the electrical characteristics tables for 3.3V and 5V supply conditions to ensure compatibility with the system's signal integrity standards.
Part Context
The PI5A391AW belongs to the PI5A39X series of precision wide bandwidth quad analog switches manufactured by Diodes Incorporated. This family includes variants with different switch configurations, such as the PI5A392A (normally open) and PI5A393A (mixed NC/NO). These devices are designed for low-voltage, single-supply operation and are pin-compatible with legacy parts like the DG3XX and MAX39X series.
Replacement Considerations
The datasheet explicitly states pin-compatibility with DG3XX, DG4XX, and MAX39X series components. Verify that the substitute device matches the specific normally closed (NC) configuration of the PI5A391AW and meets the required on-resistance and bandwidth specifications.
