LMS4684 Datasheet, PDF (1/10 Pages) National Semiconductor (TI) – 0.5 Low-Voltage, Dual SPDT Analog Switch

June 2004
LMS4684
0.5Ω Low-Voltage, Dual SPDT Analog Switch
General Description
The LMS4684 is a low on-resistance, low voltage dual SPDT
(Single-Pole/Double-Throw) analog switch that operates
from a 1.8V to 5.5V supply. The LMS4684 features a 0.5Ω
R_ON for its NC switch and 0.8Ω R_ON for its NO switch at a
2.7V supply. The digital logic inputs are 1.8V logic-
compatible with a 2.7V to 3.3V supply.
The LMS4684 is available in the 12 bump micro SMD and
the 10 lead LLP miniature packages. These PCB real estate
saving packages offer extreme performance while saving
money with small footprints.
Features
n NC switch R_ON
n NO switch R_ON
n 50nA (max) supply current
n 1.8 to 5.5V single supply operation
0.5Ω max @ 2.7V
0.8Ω max @ 2.7V
T_A = 25˚C
n 12-Bump micro SMD package
n LLP-10 package, 3x4mm
n See AN-1112 for micro SMD package considerations
n See AN-1187 for LLP package considerations
Applications
n Power routing
n Battery-operated equipment
n Communications circuits
n Modems
n Cell phones
Connection Diagrams
10-LLP Package
12-Bump micro SMD Package
DAP needs to be connected to pin 6 on the board
Top View
20077501
IN
NO
NC
0
Off
On
1
On
Off
Switches shown for Logic "0" input
20077502
Center Bumps B2 and C2 are Not Electrically Connected
Top View
(Bumped Side Down)
© 2004 National Semiconductor Corporation DS200775
www.national.com