MAX4677/MAX4678/MAX4679 are quad analog switches with on-resistance of 1.6 ohms, operating from dual ±5V supply. They feature low distortion and reliability.
The MAX4677, MAX4678, and MAX4679 are quad SPST CMOS analog switches featuring low on‑resistance (1.6 Ω max) and rail‑to‑rail signal handling. The MAX4677 provides four normally‑closed switches, the MAX4678 four normally‑open switches, and the MAX4679 a mix of two NC and two NO switches with break‑before‑make operation. They operate from dual +2.7 V to +5.5 V supplies or a single +2.7 V to +11 V supply, making them suitable for digital card and test‑equipment applications.
The datasheet lists absolute maximum ratings, detailed electrical characteristics, pin configurations, package dimensions, and typical operating curves. Applications include reed‑relay replacement, avionics, test equipment, ADC systems, communications, data‑acquisition, audio routing, and PBX/PABX systems. Ordering information for TSSOP and DIP packages is also provided.
| On‑Resistance (RON) max | 1.6 Ω |
|---|---|
| Off‑Leakage Current | 0.1 nA at +25 °C |
| Crosstalk | -84 dB at 1 MHz |
| Off‑Isolation | -65 dB at 1 MHz |
| -3 dB Bandwidth | 66 MHz |
| Supply Voltage Range | Dual +2.7 V to +5.5 V or Single +2.7 V to +11 V |
The on‑resistance is specified as 1.6 Ω max.
They can be powered from dual +2.7 V to +5.5 V supplies or from a single +2.7 V to +11 V supply.
Off‑leakage current is rated at 0.1 nA at +25 °C.
Crosstalk is -84 dB at 1 MHz and off‑isolation is -65 dB at 1 MHz.