ISL54050

Ultra Low ON-Resistance, +1.65V to +4.5V, Single Supply, Dual SPDT Analog Switch

OVERVIEW

The Intersil ISL54050 device is a low ON-resistance, low voltage, bidirectional, dual single-pole/double-throw (SPDT) analog switch designed to operate from a single +1.65V to +4.5V supply. Targeted applications include battery powered equipment that benefit from low rON (0.29Ω) and fast switching speeds (tON = 40ns, tOFF = 20ns). 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 ISL54050 is offered in small form factor package, alleviating board space limitations.

The ISL54050 is a committed dual single-pole/double-throw (SPDT) that consists of two normally open (NO) and two normally closed (NC) switches. This configuration can be used as a dual 2-to-1 multiplexer. The ISL54050 is pin compatible with the NLAS5223 and NLAS5223L.

KEY FEATURES

  • Pin Compatible Replacement for the NLAS5223 and NLAS5223L
  • ON-Resistance (rON)
  • V+ = +4.3V 0.29Ω
  • V+ = +3.0V 0.33Ω
  • V+ = +1.8V 0.55Ω
  • rON Matching Between Channels 0.06Ω
  • rON Flatness Across Signal Range 0.03Ω
  • Single Supply Operation +1.65V to +4.5V
  • Low Power Consumption (PD) <0.45µW
  • Fast Switching Action (V+ = +4.3V)
  • tON 40ns
  • tOFF 20ns
  • ESD HBM Rating >8kV
  • Break-before-Make
  • 1.8V Logic Compatible (+3V supply)
  • Low ICC Current when VinH is not at the V+ Rail
  • Available in 10 Ld 1.8mmx1.4mmx0.5mm µTQFN
  • Pb-Free (RoHS Compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL54050
Basic Information
Production Status
Mass Production
# of Devices/ Channels
4
Switch or MUX
Switch/MUX
Configuration
2 x 2:1
Type of Switch
SPDT
RDS (ON)
0.3 Ω
Leakage
100 nA
Source Cap (pf)
62
IS
0.1 µA
VCC (Single) (min) (V)
1.65
VCC (Single) (max) (V)
4.5
Qualification Level
Standard
TON (ns)
40
TOFF (ns)
20
Charge Injection (pC)
170
Drain Capacitance
176 pF
Supply Voltage Vcc Range (V)
+1.65 to +4.5
Temperature Range
-40 to +85

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