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Key Specifications
Part Number Description Status SubFamily VCC(Min)(V) VCC(Max)(V) Configuration Bandwidth(Max)(MHz) ICC(Max)(mA) Ron(Typ)(Ohms) Operating Temperature Range(℃) Pin/Package EV Kit Available?
UM4258Q 4.5Ω 300MHz Bandwidth Dual SPDT Analog Switch ACTIVE High Bandwidth Switch 1.8 5.5 2 × SPDT 300 0.001 3 -40 to 85 10/QFN 1.8×1.4
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Product Description  

The UM4258Q low-voltage, low on-resistance (RON), dual single-pole/double-throw (SPDT) analog switch operates from a single +1.8V to +5.5V supply. The device is designed for USB 1.1/2.0 and audio switching applications.
The UM4258Q features two 4.5Ω RON(max) SPDT switches with 1.2Ω flatness and 0.3Ω matching between channels. The switch offers break-before-make switching (1ns) with tON<80ns and tOFF<40ns at +2.7V. The digital logic inputs are +1.8V logic compatible with a +2.7V to +3.6V supply.
The UM4258Q is packaged in a 1.80mm×1.40mm QFN10 package, which significantly reducing the required PC board area.
 
Features
 
- 2ns (Max) Differential Skew
- -3dB Bandwidth: 300MHz
- Low 15pF On-Channel Capacitance
- Single-Supply Operation from +1.8V to +5.5V
- 4.5Ω RON (Max) Switches
  0.3Ω (Max) RON Match (+3.0V Supply)
  1.2Ω (Max) Flatness (+3.0V Supply)
- Rail-to-Rail Signal Handling
- High Off-Isolation: -55dB (10MHz)
- Low Crosstalk: -80dB (10MHz)
- Low Distortion: 0.03%
- +1.8V CMOS-Logic Compatible
- <0.5nA Leakage Current at +25°C
 
Applications
 
- USB 1.1/2.0 Signal Switching Circuits
- Battery-Operated Equipment
- Audio/Video-Signal Routing
- Headphone Switching
- Low-Voltage Data-Acquisition Systems
- Sample-and-Hold Circuits
- Cell Phones
- PDAs
 
Pin Configurations  
 
                                  (Top View)
 
Function Table
 
IN_
NO_
NC_
0
OFF
ON
1
ON
OFF
 
Ordering Information
 
Part Number
Packaging Type
Marking Code
Shipping Qty
UM4258Q
QFN10 1.80×1.40
AN
3000pcs/7Inch
Tape & Reel
 
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