0.4Ω Ultra Low ON-Resistance, Dual, SPDT Analog Switch
UM2268 QFN10 1.8×1.4
UM2268A QFN10 2.1×1.6
General Description
The UM2268/UM2268A is a dual, low-power single-pole/ double-throw (SPDT) analog switch that
operates from a single +1.8V to +4.4V supply.
The UM2268/UM2268A features guaranteed on-resistance matching (0.04Ω TYP) between
switches and guaranteed on resistance flatness over the signal range (0.08Ω TYP), as well as high
off-isolation and low crosstalk. This ensures excellent linearity and low distortion when switching
audio signals.
The UM2268 is available in Pb-free QFN10 package (1.8mm×1.4mm×0.55mm), while the
UM2268A is available in Pb-free QFN10 package (2.1mm×1.6mm×0.55mm).
Applications
Features
Portable Instrumentation
Battery-Operated Equipment
Computer Peripherals
Speaker and Earphone Switching
Medical Equipment
Audio and Video Switching
VCC Operating Range: +1.8V to +4.4V
Low On-Resistance: 0.4Ω(TYP) at +4.4V
On-Resistance Matching: (0.04Ω TYP)
On-Resistance Flatness: (0.08Ω TYP)
-3dB Bandwidth:80MHz
Low Off-Isolation: -78dB (100kHz)
Low Crosstalk: -93dB (100kHz)
TTL/CMOS Compatible
Break-Before-Make Switching
Rail-to-Rail Input and Output Operation
Lead (Pb) Free QFN10 Package
Pin Configurations
Top View
NC2 NO1
1
2
NC1
V+
3
4
5
NO2
GND
10
9
COM2
COM1
8
M: Month Code
UM2268
6
7
QFN10 1.8×1.4
IN2
IN1
________________________________________________________________________
http://www.union-ic.com Rev.07 Feb.2014 1/11