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Product Detailed Parameters
- Description：IC SW SPDT-NO/NCX1 7OHM SC70-6
- Series：-
- Mfr：UMW
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT - NO/NC
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：7Ohm (Typ)
- Channel-to-Channel Matching (ΔRon)：150mOhm (Typ)
- Voltage - Supply, Single (V+)：1.65V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：5.2ns, 3.5ns
- -3db Bandwidth：350MHz
- Charge Injection：7pC
- Channel Capacitance (CS(off), CD(off))：2.3pF
- Current - Leakage (IS(off)) (Max)：100nA (Max)
- Crosstalk：-54dB @ 10MHz
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：6-VSSOP, SC-88, SOT-363
- Supplier Device Package：SC70-6
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The SGM3157 is a single-channel, bidirectional SPDT analog switch manufactured by UMW using CMOS technology. It operates on a single supply voltage ranging from 1.65V to 5.5V and features a typical on-resistance of 7Ω at VCC=4.5V. The device provides a -3dB bandwidth of 350MHz and supports rail-to-rail signal handling. Key electrical specifications include a maximum transmission delay of 5.2ns, turn-off time of 3.5ns, and charge injection of 7pC. It offers high isolation of -54dB at 10MHz and functions within an extended temperature range of -55°C to +125°C in a compact SC70-6 package.
Feature Summary
- Supports rail-to-rail analog and digital signal switching with over-voltage protection on the select input terminal up to 7V.
- Incorporates break-before-make switching logic to prevent short circuits during state transitions.
- Provides high linearity and low output impedance suitable for precision signal routing applications.
Applications
- NTSC/PAL video signal routing
- Audio and SPDIF/HDTV signal switching
- Clock and data selection switches
Procurement Notes
Verify the manufacturer designation as UMW or UTD Semiconductor Co., Limited when sourcing this component. Confirm the specific ordering suffix corresponds to the SC70-6 package and tape-and-reel delivery mode. Ensure the part number matches the exact SGM3157 identifier to guarantee compatibility with the documented electrical parameters and pin configuration.
Selection Notes
Select this component for designs requiring low power consumption and fast switching speeds within a 1.65V to 5.5V supply range. The wide operating temperature range of -55°C to +125°C makes it suitable for industrial environments. Consider the 7Ω typical on-resistance and 350MHz bandwidth when evaluating signal integrity requirements for high-frequency applications.
Part Context
The SGM3157 belongs to the family of low-voltage CMOS analog switches designed for portable and battery-powered devices. Manufactured by UMW, it utilizes a green SC70-6 package to minimize board space. The device is RoHS compliant and meets REACH standards, ensuring environmental safety for modern electronic assemblies.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and electrical specifications before considering alternative components from other manufacturers.
