ISL54058 Datasheet, PDF (6/10 Pages) Intersil Corporation – Ultra Low ON-Resistance, Low-Voltage, Single Supply, Dual 4 to 1 Analog Multiplexer

ISL54058
Test Circuits and Waveforms (Continued)
V+
C
V+
C
SIGNAL
GENERATOR
ANALYZER
R_L
Ax or Bx
0V or V+
ADDX
COMx _GND
R_ON = V₁/100mA
V_NX
100mA
Ax or Bx
V₁
0V or V+
ADDX
COMx
GND
FIGURE 3. OFF ISOLATION TEST CIRCUIT
V+
C
SIGNAL
GENERATOR
Ax
COM_A
ADDX
0V or V+
ANALYZER
R_L
Bx
COM_{B GND}
50Ω
N.C.
FIGURE 5. CROSSTALK TEST CIRCUIT
FIGURE 4. R_ON TEST CIRCUIT
V+
C
IMPEDANCE
ANALYZER
Ax or Bx
0V or V+
ADDX
COMx
GND
FIGURE 6. CAPACITANCE TEST CIRCUIT
Detailed Description
The ISL54058 analog switches offer precise switching
capability from a single 1.6V to 3.6V supply with low
on-resistance (0.41Ω) and high speed operation
(t_RANS = 29ns). The device is especially well suited to
portable battery powered equipment thanks to the low
operating supply voltage (1.6V), low power consumption
(0.17µW), 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
6
be applied before any input signals, and the input signal
voltages must remain between V+ and GND.
OPTIONAL
SCHOTTKY
DIODE
OPTIONAL
PROTECTION
RESISTOR
V+
ADD_X
Ax or Bx
V_COMX
OPTIONAL
SCHOTTKY
DIODE
GND
FIGURE 7. OVERVOLTAGE PROTECTION
FN6380.0
September 29, 2006