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| Part Number | FSA1258AL8X | FSA1258L8X | FSA1256AL8X | FSA1257AL8X |
|---|---|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | onsemi | onsemi |
| Product Status | Obsolete | Obsolete | Last Time Buy | Last Time Buy |
| Switch Circuit | SPST - NO/NC | SPST - NO/NC | SPST - NO | SPST - NC |
| Multiplexer/Demultiplexer Circuit | 1:1 | 1:1 | 1:1 | 1:1 |
| Number of Circuits | 2 | 2 | 2 | 2 |
| On-State Resistance (Max) | 1.15Ohm | 1.15Ohm | 1.15Ohm | 1.15Ohm |
| Channel-to-Channel Matching (ΔRon) | 60mOhm | 60mOhm | 60mOhm | 60mOhm |
| Voltage - Supply, Single (V+) | 2.7V ~ 5.5V | 1.65V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Voltage - Supply, Dual (V±) | - | - | - | - |
| Switch Time (Ton, Toff) (Max) | 35ns, 15ns | 35ns, 15ns | 35ns, 15ns | 35ns, 15ns |
| -3db Bandwidth | 300MHz | 300MHz | 300MHz | 300MHz |
| Charge Injection | 20pC | 20pC | 20pC | 20pC |
| Channel Capacitance (CS(off), CD(off)) | 11.5pF | 11.5pF | 11.5pF | 11.5pF |
| Current - Leakage (IS(off)) (Max) | 2nA (Typ) | 2nA (Typ) | 2nA (Typ) | 2nA (Typ) |
| Crosstalk | -100dB @ 1MHz | -100dB @ 1MHz | -100dB @ 1MHz | -100dB @ 1MHz |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-UFQFN | 8-UFQFN | 8-UFQFN | 8-UFQFN |
| Supplier Device Package | 8-MicroPak™ | 8-MicroPak™ | 8-MicroPak™ | 8-MicroPak™ |
