TMUX7208

• Latch-Up Immune
• Dual Supply Range: ±4.5 V to ±22 V
• Single Supply Range: 4.5 V to 44 V
• Low On-Resistance: 4 Ω
• Low Charge Injection: 3 pC
• High Current Support: 400 mA (Maximum) (WQFN)
• High Current Support: 300 mA (Maximum) (TSSOP)
• –40°C to +125°C Operating Temperature
• 1.8 V Logic Compatible Inputs
• Fail-Safe Logic
• Rail-to-Rail Operation
• Bidirectional Signal Path
• Break-Before-Make Switching

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The TMUX7208 is a precision 8:1, single channel multiplexer while the TMUX7209 is a 4:1, 2 channel multiplexer featuring low on resistance and charge injection. The devices work with a single supply (4.5 V to 44 V), dual supplies (±4.5 V to ±22 V), or asymmetric supplies (such as V_DD = 12 V, V_SS = –5 V). The TMUX720x support bidirectional analog and digital signals onthe source (Sx) and drain (D) pins ranging from V_SS to V_DD.

The TMUX720x are part of the precision switches and multiplexers family of devices and have very low on and off leakage currents allowing them to be used in high precision measurement applications. The TMUX72xx family provides latch-up immunity, preventing undesirable high current events between parasitic structures within the device typically caused by overvoltage events. A latch-up condition typically continues until the power supply rails are turned off and can lead to device failure. The latch-up immunity feature allows the TMUX72xx family of switches and multiplexers to be used in harsh environments.