ISL43410IRZ-T Intersil, ISL43410IRZ-T Datasheet - Page 8

• Manufacturer Part Number: ISL43410IRZ-T
• Description: IC SWITCH DPDT 16QFN
• Manufacturer: Intersil

Specifications of ISL43410IRZ-T

• Function: Switch
• Circuit: 1 x DPDT
• On-state Resistance: 125 Ohm
• Voltage Supply Source: Single Supply
• Voltage - Supply, Single/dual (±): 2 V ~ 12 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-VQFN Exposed Pad, 16-HVQFN, 16-SQFN, 16-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Test Circuits and Waveforms
Detailed Descriptions
The ISL43410 operates from a single 2V to 12V supply with
low ON-resistance (115Ω) and high speed operation
(t
suited to portable battery powered equipment thanks to the
low operating supply voltage (2.0V), low power consumption
(3µW), low leakage currents (5nA max), and the tiny MSOP
and QFN packaging. High frequency applications also benefit
from the wide bandwidth, and the very high OFF-isolation
(75dB) and crosstalk rejection (-85dB).
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 GND (see
Figure 8). To prevent forward biasing these diodes, V+ must
be applied before any input signals, and input signal
ON
SIGNAL
GENERATOR
SIGNAL
GENERATOR
ANALYZER
ANALYZER
= 60ns, t
FIGURE 4. OFF-ISOLATION TEST CIRCUIT
FIGURE 6. CROSSTALK TEST CIRCUIT
OFF
R
R
L
0V OR V+
L
= 30ns). The ISL43410 is especially well
NO1 OR NC1
COM2
ADD
NO OR NC
COM
8
GND
GND
NO2 OR NC2
INH
COM1
V+
ADD
V+
INH
(Continued)
C
C
0V OR V+
0V OR V+
50Ω
NC
ISL43410
voltages must remain between V+ and GND. If these
conditions cannot be guaranteed, then one of the following
two protection methods should be employed.
Logic inputs can easily be protected by adding a 1kΩ
resistor in series with the input (see Figure 8). The resistor
limits the input current below the threshold that produces
permanent damage, and the sub-microamp input current
produces an insignificant voltage drop during normal
operation.
This method is not applicable for the signal path inputs.
Adding a series resistor to the switch input defeats the
purpose of using a low r
diodes can be added in series with the supply pins to provide
overvoltage protection for all pins (see Figure 8). These
additional diodes limit the analog signal from 1V below V+ to
1V above GND. The low leakage current performance is
unaffected by this approach, but the switch resistance may
increase, especially at low supply voltages.
V
IMPEDANCE
NX
ANALYZER
r
ON
FIGURE 7. CAPACITANCE TEST CIRCUIT
1mA
= V
1
/1mA
FIGURE 5. r
V
1
ON
COM
NO OR NC
ON
switch, so two small signal
NO OR NC
COM
TEST CIRCUIT
GND
GND
V+
INH
ADD
INH
ADD
V+
C
0V OR V+
0V OR V+
C
May 12, 2008
FN6044.4