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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX4 45OHM 16SOIC
- Series：-
- Mfr：Diodes Incorporated
- Package：Tube
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：45Ohm
- Channel-to-Channel Matching (ΔRon)：500mOhm
- Voltage - Supply, Single (V+)：3V ~ 15V
- Voltage - Supply, Dual (V±)：±3V ~ 8V
- Switch Time (Ton, Toff) (Max)：130ns, 75ns
- -3db Bandwidth：100MHz
- Charge Injection：3pC
- Channel Capacitance (CS(off), CD(off))：12pF, 12pF
- Current - Leakage (IS(off)) (Max)：100pA
- Crosstalk：-90dB @ 1MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：16-SOIC
- Number of Circuits：4
- Grade：-
- Qualification：-
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Overview
The PS391ESEE is a discontinued analog switch integrated circuit manufactured by Diodes Incorporated. It integrates four single-pole single-throw normally-closed (SPST-NC) channels within a 16-pin QSOP package. The device features a maximum on-resistance of 45 ohms and a -3dB bandwidth of 100MHz. It operates on a single supply voltage ranging from 3V to 15V, or dual supplies from ±3V to ±8V. Key electrical specifications include a channel-to-channel matching of 500 milliohms, charge injection of 3pC, and leakage current of 100pA maximum. Switching times are specified at 130ns for turn-on and 75ns for turn-off.
Feature Summary
- Integrates four independent SPST-NC signal paths in a compact surface-mount package
- Provides low on-resistance with tight channel-to-channel matching for signal integrity
- Operates across standard single and dual power supply configurations
Applications
- Signal routing in data acquisition systems
- Audio signal switching applications
- Test and measurement equipment signal paths
Procurement Notes
This component has been officially declared obsolete and is no longer in production. Verification of availability should focus on surplus distributors or secondary market sources rather than direct manufacturer allocation. Buyers must confirm the specific revision status and authenticity through authorized surplus channels before procurement.
Selection Notes
Designers requiring this functionality should evaluate active replacements due to the end-of-life status. Considerations include verifying pin compatibility, on-resistance limits, and supply voltage ranges against alternative components such as the ADG1611 series. Ensure that any substitute part meets the required switching speed and isolation specifications for the target application.
Part Context
The PS391ESEE belongs to the PS391 family of quad analog switches produced by Diodes Incorporated. This family is designed for general-purpose signal switching tasks. The ESEE suffix denotes the specific 16-QSOP package variant. The entire product line was subject to a product change notice regarding obsolescence in May 2007.
Replacement Considerations
Publicly confirmed substitutes include the ADG1611BRUZ from Analog Devices Inc. Verify functional equivalence regarding pinout and electrical parameters before integration.
