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Product Detailed Parameters
- Description：IC SWITCH SPDTX1 1.2OHM SOT23-6
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：1.2Ohm
- Channel-to-Channel Matching (ΔRon)：10mOhm
- Voltage - Supply, Single (V+)：1.65V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：18ns, 20ns
- -3db Bandwidth：150MHz
- Charge Injection：35pC
- Channel Capacitance (CS(off), CD(off))：3.5pF
- Current - Leakage (IS(off)) (Max)：20nA
- Crosstalk：-70dB @ 1MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6
- Supplier Device Package：SOT-23-6
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The PI5A4157TAEX is a single-pole double-throw (SPDT) CMOS analog switch manufactured by Diodes Incorporated. It operates within a supply voltage range of 1.65V to 5.5V and features an ultra-low on-resistance of 0.8Ω typical at 3.0V, with a maximum of 1.2Ω at 4.5V. The device provides a -3dB bandwidth of 150MHz and supports rail-to-rail signal ranges. It includes break-before-make switching logic to prevent simultaneous channel activation. The TA suffix indicates the component is packaged in a 6-pin SOT23 tape and reel format.
Feature Summary
- CMOS technology designed for bus and analog applications
- Rail-to-rail signal range operation across wide supply voltages
- Break-before-make switching prevents signal disruption during transitions
- Control input tolerant up to 5.5V independent of supply voltage
Applications
- Cell phones
- PDAs
- Portable instrumentation
- Battery powered communications
- Computer peripherals
Procurement Notes
Verify the specific package configuration matches the design requirements before ordering. Confirm that the manufacturer's datasheet specifications align with the system's electrical constraints. Ensure compliance with RoHS and Green manufacturing standards as indicated by the E suffix. Validate the lead time and availability directly with authorized distributors or the manufacturer.
Selection Notes
Select this component when low on-resistance and high bandwidth are required for SPDT switching applications. Consider the 1.65V minimum operating voltage for compatibility with low-power systems. Evaluate the 6-pin SOT23 package dimensions against available PCB space. Verify control logic levels match the driving source capabilities.
Part Context
This part belongs to the PI5A4157 family of low-voltage analog switches. The TAEX designation specifically identifies the 6-pin SOT23 surface-mount package variant supplied in tape and reel format. Other variants in the series include SC70 and UDFN packages.
Replacement Considerations
Check pinout compatibility with existing designs. Verify that alternative components meet the 150MHz bandwidth and 0.8Ω on-resistance specifications. Ensure the replacement supports the same 1.65V to 5.5V supply range and industrial temperature limits.
FAQ
What is the maximum on-resistance specified for the PI5A4157?
The maximum on-resistance is 1.2Ω at a 4.5V supply voltage.
Does the PI5A4157 support simultaneous switching of both channels?
No, it features break-before-make switching which prevents both switches from being enabled simultaneously.
What is the operating temperature range for this device?
The device operates within an extended industrial temperature range of -40°C to +85°C.
