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FSA2257L10X
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Product Detailed Parameters
- Description：IC SW SPDTX2 1.15OHM 10MICROPAK
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：1.15Ohm
- Channel-to-Channel Matching (ΔRon)：60mOhm
- Voltage - Supply, Single (V+)：1.65V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：35ns, 15ns
- -3db Bandwidth：200MHz
- Charge Injection：10pC
- Channel Capacitance (CS(off), CD(off))：12pF
- Current - Leakage (IS(off)) (Max)：2nA
- Crosstalk：-75dB @ 1MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-UFQFN Exposed Pad
- Supplier Device Package：10-MicroPak™
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The FSA2257L10X is a low-voltage dual Single-Pole/Double-Throw (SPDT) bi-directional analog switch manufactured by onsemi. It operates within a supply voltage range of 1.65 V to 5.5 V and features a maximum on-resistance of 1.3 Ohms at 4.5 V. The device supports a switching current of 200 mA with a maximum power consumption of 500 nA. Switching times are characterized by a maximum turn-on time of 35 ns and a maximum turn-off time of 15 ns. It is housed in a MicroPak-10 package and functions across an operating temperature range from -40°C to +85°C.
Feature Summary
- Bi-directional signal transmission capability for flexible circuit configuration
- Break-before-make operation to prevent signal shorting during switching
- TTL-compatible control inputs for direct logic interfacing
Applications
- Cell phone signal routing
- Personal Digital Assistant (PDA) peripheral switching
- Mobile device antenna selection circuits
Procurement Notes
Verify component status as the FSA2257L10X is listed as obsolete or end-of-life by the manufacturer. Confirm availability through secondary market distributors if immediate procurement is required. Ensure that any sourced units match the original MicroPak-10 packaging specifications to maintain compatibility with existing board designs.
Selection Notes
Select this component when designing low-voltage systems requiring dual SPDT switching with minimal signal degradation. The 1.65 V minimum supply voltage makes it suitable for battery-powered applications. Verify that the 1.3 Ohm on-resistance meets the specific insertion loss requirements of the target application.
Part Context
This part belongs to the FSA2257 series of analog switches, designed for portable electronics. It shares functional similarities with other low-voltage SPDT switches but is distinguished by its specific MicroPak-10 footprint and break-before-make timing characteristics optimized for mobile communication devices.
Replacement Considerations
Check for pin-compatible alternatives within the same family, such as the FSA2258L10X, noting differences in on-resistance and bandwidth. Verify electrical parameters against the new component's datasheet to ensure performance parity in the existing design.
