Analog Devices MAX4644 Product Info

• +1.8V to +5.5V Single-Supply Operation
• Rail-to-Rail Analog-Signal Range
• Guaranteed R_ON
  • 4Ω max (+5V Supply)
  • 8Ω max (+3V Supply)
• +1.8V Operation
  • R_ON 30Ω (typ) Over Temperature
  • t_ON 18ns (typ), t_OFF 12ns typ
• Guaranteed R_ON Flatness: 0.75Ω (typ) (+5V Supply)
• Guaranteed R_ON Match Between Channels: 0.1Ω typ (+5V Supply)
• Low Leakage (< 0.35nA) Over Entire Temperature Range
• Excellent AC Characteristics
  • Low Crosstalk: -82dB at 1MHz
  • High Off-Isolation: -80dB at 1MHz
  • 0.018% Total Harmonic Distortion
• Low Power Consumption: < 0.01µW

The MAX4644 is a single-pole/double-throw (SPDT) switch that operates from a single supply ranging from +1.8V to +5.5V. It provides low 4Ω on-resistance (R_ON) as well as 1Ω R_ON flatness over the entire analog-signal range. The MAX4644 offers fast switching times of less than 20ns while ensuring break-before-make operation. It typically consumes only 0.01µW of quiescent power, making it suitable for use in low-power, portable applications.

The MAX4644's features include low leakage currents over the entire temperature range, TTL/CMOS-compatible digital logic, and excellent AC characteristics. It is packaged in either a small 8-pin µMAX® or a tiny 6-pin SOT23.

Applications

• Audio/Video Signal Routing
• Battery-Powered Applications
• Communication Systems
• Low-Voltage Data Acquisition
• Sample-and-Hold Circuits