AS1746 Datasheet, PDF (1/15 Pages) ams AG – 0.5/0.6ohm, Low-Voltage, Dual SPDT Analog Switch

Datasheet
AS1746
0 . 5 / 0 . 6 Ω, L o w - Vo l ta g e , D u a l S P D T A n a l o g S w i t c h
1 General Description
The AS1746 is a low on-resistance (RON), low-voltage,
dual-single-pole/double-throw (SPDT) analog switch
designed to operate from a single +1.8 to +5.5V supply.
The device features a 0.5Ω (max) RON for normally
closed (NC) switches and a 0.6Ω (max) RON for nor-
mally open (NO) switches using a +2.7V supply.
The AS1746 features break-before-make switching
(2ns) with tON = 50ns and tOFF = 30ns (using a +2.7V
supply).
The digital logic inputs are 1.8V logic-compatible with
+2.7 to +3.3V supplies.
The AS1746 is available in a TDFN-10 (3x3mm) pack-
age and a WL-CSP-10 package.
Figure 1. AS1746 - Block Diagram
2 Key Features
! Single Supply Operation: +1.8V to +5.5V
! Normally Closed Switch RON: 0.45Ω (+2.7V Supply)
! Normally Open Switch RON: 0.55Ω (+2.7V Supply)
! RON Matching Between Channels: 0.06Ω
! RON Flatness Over Signal Range: 0.15Ω
! Supply Current: 50nA
! Rail-to-Rail Signal Handling
! 1.8V Logic Compatibility
! Low Crosstalk: -60dB (100kHz)
! High Off-Isolation: -64dB (100kHz)
! Total Harmonic Distortion: 0.025%
! Ultra-Low Leakage Currents: 1nA (@ TAMB = +25ºC)
! Package Types:
- TDFN-10 (3x3mm)
- WL-CSP-10
3 Applications
The device is ideal for audio headsets, MP3 players,
power routing switches, relay replacements, audio and
video signal routing, communications circuits, PCMCIA
cards, mobile phones, MODEMs, and any battery-oper-
ated equipment.
V+ 1
NO1 2
COM1 3
IN1 4
NC1 5
AS1746
10 NO2
9 COM2
8 IN2
7 NC2
6 GND
Truth Table
IN
NOx to
COM
NCx to
COM
Low
Off
On
High
On
Off
Switch shown for logic low input.
www.austriamicrosystems.com
Revision 1.03
1 - 15