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ISL54058IRUZ-T Fiches technique(PDF) 6 Page - Intersil Corporation |
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ISL54058IRUZ-T Fiches technique(HTML) 6 Page - Intersil Corporation |
6 / 10 page 6 FN6380.0 September 29, 2006 Detailed Description The ISL54058 analog switches offer precise switching capability from a single 1.6V to 3.6V supply with low on-resistance (0.41 Ω) and high speed operation (tRANS = 29ns). The device is especially well suited to portable battery powered equipment thanks to the low operating supply voltage (1.6V), low power consumption (0.17 µW), low leakage currents (60nA max) , and the tiny µTQFN package. The ultra low on-resistance and R ON flatness provide very low insertion loss and distortion to applications that require signal reproduction. Supply Sequencing And Overvoltage Protection With any CMOS device, proper power supply sequencing is required to protect the device from excessive input currents which might permanently damage the IC. All I/O pins contain ESD protection diodes from the pin to V+ and to GND (see Figure 7). To prevent forward biasing these diodes, V+ must be applied before any input signals, and the input signal voltages must remain between V+ and GND. FIGURE 3. OFF ISOLATION TEST CIRCUIT FIGURE 4. RON TEST CIRCUIT FIGURE 5. CROSSTALK TEST CIRCUIT FIGURE 6. CAPACITANCE TEST CIRCUIT Test Circuits and Waveforms (Continued) ANALYZER RL SIGNAL GENERATOR 0V or V+ Ax or Bx COMx ADDX GND V+ C 0V or V+ Ax or Bx COMx ADDX GND VNX V1 RON = V1/100mA 100mA V+ C 0V or V+ ANALYZER Ax SIGNAL GENERATOR RL GND ADDX 50 Ω N.C. COMB Bx V+ C COMA GND Ax or Bx COMx ADDX IMPEDANCE ANALYZER 0V or V+ V+ C FIGURE 7. OVERVOLTAGE PROTECTION GND VCOMX Ax or Bx V+ OPTIONAL PROTECTION RESISTOR OPTIONAL SCHOTTKY DIODE OPTIONAL SCHOTTKY DIODE ADDX ISL54058 |
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