PS323
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Precision, Single-Supply
SPST Analog Switch
Features
Description
Low On-Resistance (33-ohm typ.) Minimizes Distortion and
The PS323 is a improved high-precision, medium- voltage analog
Error Voltages
switches designed to operate with single power supplies. The
Low Glitching Reduces Step Errors in Sample-and-Holds.
decive is a dual, single-pole single-throw (SPST), normally open
Charge Injection, 2pC typ.
(NO) switch. The switch conducts current equally well in either
Single-Supply Operation (+2.5V to +16V)
direction when on. In the off state, each switch blocks voltages up
Improved Second Sources for MAX323/MAX324/MAX325
to the power-supply rail.
On-Resistance Matching Between Channels, <2-ohm
With a +5V power supply, PS323 guarantees <60-ohm On-Resis-
On-Resistance Flatness, <6-ohm max.
o tance. On-Resistance matching between channels is within 2-ohm.
Low Off-Channel Leakage, <5nA @ +85 C
On-Resistance flatness is less than 6-ohm over the specified range.
TTL/CMOS Logic Compatible
o
All three devices guarantee low leakage currents (<100 pA @ 25 C,
Fast Switching Speed, t <150ns
ON
o
<10nA @ +85 C) and fast switching speeds (t <150ns). Break-
ON
eliminates momentary crosstalk
before-make switching action protects against momentary crosstalk.
Rail-to-Rail Analog Signal Dynamic Range
Low Power Consumption, <5mW
Packaging (Pb-free & Green available):
- 8-pin SOIC (W)
- 8-pin MOSP (U)
Block Diagram, Pin Configuration, and Truth Table
Applications
Audio Switching and Routing
PS323
Portable Instruments
Data Acquisition Systems
8
NO1 1 V+
Sample-and-Holds
COM1 2 7 IN1
Telecommunication Systems
Battery-Powered Systems IN2 3 6 COM2
GND 4 5 NO2
Top View
Switches shown for logic 0 input
PS323
Lhogic Switc
0 OFF
1 ON
PS8188F 03/10/05
1PS323
Precision, Single Supply SPST Analog Switch
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Absolute Maximum Ratings Thermal Information
Voltages Referenced to GND.......................................................
Continuous Power Dissipation
V+ ........................................................................... -0.3V to +17V
Plastic DIP (derate 6mW/ C above +70 C) ...................... 500mW
(1)
V , V , V , V ................................................ 2V to (V+) +2V
IN COM NC NO
Narrow SO (derate 6mW/ C above +70 C) ...................... 450mW
or 30mA, whichever occurs first
MSOP (derate 4mW/ C above +70 C) ............................ 330mW
Current (any terminal) ........................................................ 30mA
Storage Temperature ........................................ 65 C to +150 C
Operating Temperature ............................................. 0 to +70C
Peak Current, COM, NO, NC
(pulsed at 1ms, 10% duty cycle) ....................................... 100mA Lead Temperature (soldering, 10s) .................................. +300 C
ESD per Method 3015.7 ................................................... >2000V
Note 1: Signals on NC, NO, COM, or IN exceeding V+ or GND
are clamped by internal diodes. Limit forward diode current to
30mA maximum.
Caution: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress only
rating and operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not
implied.
Electrical Specifications - Single +5V Supply
(V+ = 5V +10%, GND = 0V, V = 2.4V, V = 0.8V)
INH INL
(1) (2) (1)
Plarameter SsymboC)ondition Tnemp (C Mi Typ Max Units
Analog Switch
(3)
Analog Signal Range V 0+VV
AN ALO G
V+ = 4.5V,
205 253
ORn-Resistance V or V = +3.5V
O N N O N C
F0ull 306
I = 1mA,
CO M
V or V = +3V,
285 02.
N O N C
On-Resistance Match ohm
R I = 1mA,
O N CO M
(4)
Between Channels
F4ull
V+ = 5V,
V+ = 5V,
225 6
(5)
On-Resisatance Flatness R I = 1mA,
FLAT(O N ) CO M
F8ull
V or V = 1V, 2V, 3V
N O N C
V+ = 5.5V,
215 10. 10.0 0.
NO or NC Off Leakage I or
N)O (O FF
V = 1V,
CO M
Current(6) I
N C(O FF)
F5ull5
V or V = 4.5V
N O N C
V+ = 5.5V
215 10. 10.0 0.
(6)
COM Off Leakage Current I V = 4.5V
nA
CO M(O FF) CO M
F5ull5
V or V = 1V
N O N C
V+ = 5.5V 225 40. 20.0 0.
(6)
COM On Leakage Current I V = 5V
CO M(O N ) CO M
V or V = 5V F0ull01 1
N O N C
PS8188F 03/10/05
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