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| Ultra Low ON-Resistance, +1.1V to +4.5V Single Supply, Quad SPDT (Dual DPDT) Analog Switch |
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| Ordering Information |
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 iBuy direct from Intersil
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 iBuy direct - out of stock
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 Request samples
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 Check distributor inventory
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Available in RoHS/Pb-Free
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Part No. |
Design-In
Status |
Temp. |
Package |
MSL |
Price
US $ |
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| ISL43L420IRZ |
Active |
Ind |
16 Ld QFN |
2 |
1.81 |
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| ISL43L420IRZ-T |
Active |
Ind |
16 Ld QFN T+R |
2 |
1.87 |
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| ISL43L420IR |
InActive |
Ind |
16 Ld QFN |
1 |
N/A |
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| ISL43L420IR-T |
InActive |
Ind |
16 Ld QFN T+R |
1 |
N/A |
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| The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice. |
| MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020 |
| SMD = Standard Microcircuit Drawing |
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 Description |
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The Intersil ISL43L420 device is a low ON-resistance, low voltage, bidirectional, Quad SPDT (Dual DPDT) analog switch designed to operate from a single +1.1V to +4.5V supply. Targeted applications include battery-powered equipment that benefit from low RON (0.24Ω) and fast switching speeds (tON = 8ns, tOFF = 5ns). The digital logic input is 1.8V logic-compatible when using a single +3V supply.
Cell phones, for example, often face ASIC functionality limitations. The number of analog input or GPIO pins may be limited and digital geometries are not well suited to analog switch performance. This part may be used to "mux-in" additional functionality while reducing ASIC design risk. The ISL43L420 is offered in a small form factor package, alleviating board space limitations.
The ISL43L420 is a committed Quad SPDT that consists of four normally open (NO) and four normally (NC) switches. This configuration can also be used as a diff dual 2-to-1 multiplexer/demultiplexer or a dual 2-to1 multiplexer/demultiplexer. The ISL43L420 is pin compatible with the STG3699. |
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 Key Features |
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Drop in Replacement for the STG3699
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ON Resistance (RON)
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V+ = +4.3V 0.24Ω
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V+ = +3.0V 0.26Ω
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V+ = +1.8V 0.45Ω
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RON Matching between Channels 0.05Ω
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RON Flatness Across Signal Range 0.05Ω
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Single Supply Operation +1.1V to +4.5V
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Low Power Consumption (PD) <0.2µW
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Fast Switching Action (V+ = +4.3V)
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Guaranteed Break-Before-Make
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1.8V Logic Compatible (+3V supply)
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Available in 16 lead 3x3 QFN
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ESD HBM Rating
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COM Pins 9kV
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All Other Pins 4kV
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Pb-Free Available as an Option (see Ordering Info)
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| Related Documentation |
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 Application Note(s): |
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 Datasheet(s): |
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 Technical Brief(s): |
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 Technical Homepage: |
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 Parametric Data |
| | Switch or MUX | | Switch/MUX | | | Configuration | | Quad 2x1 | | | Type of Switch | | SPDT (Dual DPDT) | | | rDS(ON) (Ω) | | .25 | | | T(ON) (ns) | | 8 | | | T(OFF) (ns) | | 5 | | | CHG INJ (pC) | | 120 | | | Leakage (nA) | | 50 | | | SRC Cap (pF) | | 106 | | | DRN Cap (ON) (pF) | | 212 | | | IS (A) | | 60n | | | IS (μA) | | .06 | | | VCC Range (±V) | | +1.1 to +4.5 | | | VCC (Single) (min) (V) | | * | | | VCC (Single) (max) (V) | | * | | | VCC (Dual) (min) (±V) | | * | | | VCC (Dual) (max) (±V) | | * | |
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| Applications |
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- Battery Powered, Handheld, and Portable Equipment
- Cellular/Mobile Phones
- Pagers
- Laptops, Notebooks, Palmtops
- Portable Test and Measurement
- Medical Equipment
- Audio and Video Switching
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| | ISL54056 | | Ultra Low ON-Resistance, +1.65V to +4.5V, Single Supply, Quad SPDT (Dual DPDT) Analog Switch | | | ISL83699 | | Ultra Low ON-Resistance, Low Voltage, Single Supply, Quad SPDT (Dual DPDT) Analog Switch | | | ISL84467 | | Ultra Low ON-Resistance, +1.65V to +4.5V, Single Supply, Quad SPDT (Dual DPDT) Analog Switch | | | ISL84780 | | Ultra Low ON-Resistance, Low Voltage,Single Supply, Quad 2:1 Analog Multiplexer | | | ISL8499 | | Ultra Low ON-Resistance, +1.65V to +4.5V, Single Supply, Quad SPDT (Dual DPDT) Analog Switch | |
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