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Product Detailed Parameters
- Description：IC SWITCH 8:1 105 OHM 16QFN
- Series：-
- Mfr：Silicon Labs
- Package：Tape & Reel (TR)
- Applications：-
- Multiplexer/Demultiplexer Circuit：2:01
- Switch Circuit：SPDT
- Number of Channels：3
- On-State Resistance (Max)：105Ohm
- Voltage - Supply, Single (V+)：0.8V ~ 5.25V
- Voltage - Supply, Dual (V±)：-
- -3db Bandwidth：-
- Features：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-VFQFN Exposed Pad
- Supplier Device Package：16-QFN (3x3)
- Grade：-
- Qualification：-
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Overview
The TS4102ITQ1633T is a triple single-pole/double-throw (SPDT) analog switch manufactured by Silicon Labs. It operates within a supply voltage range of 0.8 V to 5.25 V and supports input signal swings up to 5.25 V. The device features an on-resistance of 80 Ω typical at 5 V, with less than 1% variation across the entire signal swing. Supply current is 675 nA, and leakage is guaranteed at ±0.5 nA. It is housed in a 16-pin TQFN package measuring 3 mm x 3 mm.
Feature Summary
- Triple SPDT configuration for independent signal routing
- Rail-to-Rail Plus operation allowing signals to exceed supply rails
- Ultra-low power consumption with minimal leakage
- Flat on-resistance ensuring high linearity
Applications
- Low-voltage data-acquisition systems
- Audio signal routing
- Precision measurement equipment
- Programmable gain amplifier circuits
- Switched-capacitor voltage doublers
Procurement Notes
Verify the 'T' suffix indicates tape and reel packaging rather than tube. Confirm the ITQ1633 designation matches the required temperature range and package variant. Ensure the source document explicitly lists this specific part number as available or discontinued before ordering.
Selection Notes
Select this component when multiple independent SPDT switching paths are required in a low-power environment. The Rail-to-Rail Plus capability allows operation with signal levels higher than the logic supply. Verify that the 80 Ω on-resistance meets the insertion loss requirements of the target application.
Part Context
This part belongs to the TS410x family, which includes the TS4100 multiplexer and TS4101 dual multiplexer. All share the same low-profile 16-pin TQFN package and core electrical characteristics. The TS4102 specifically provides three independent SPDT switches instead of multiplexing functions.
Replacement Considerations
Publicly confirmed substitute part numbers are not provided in the datasheet. Evaluate other SPDT switches based on matching supply voltage ranges, on-resistance flatness, and package dimensions if direct substitution is necessary.
FAQ
How does the TS4102 handle input voltages exceeding the supply voltage?
It utilizes Rail-to-Rail Plus technology, allowing input/output voltages to exceed the supply rails while maintaining consistent on-resistance.
What is the maximum off-isolation performance?
At 10 kHz, the off-isolation is approximately -88 dB.
How can charge pump spikes be suppressed?
Placing a 500 pF capacitor to ground at the input or output will suppress transients generated by the internal charge pump.
