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PS398/PS399
Precision 8-Ch, Diff. 4-Ch,
17V Analog Multiplexers
Features
•
Low On-Resistance (60-ohm typ.) Minimizes Distortion
and Error Voltages
•
Low Glitching Reduces Step Errors and Improves
Settling Times. Charge Injection: <5pC
•
Split-Supply Operation (+3V to +8V)
•
Improved Second Sources for MAX398/MAX399
•
On-Resistance Matching Between Channels: <6Ohm
•
On-Resistance Flatness: <11-ohm
•
Low Off-Channel Leakage,
I
NO(OFF)
< 1nA @ +85
o
C, I
COM(ON)
, <2.5nA @ +85
o
C
•
TTL/CMOS Logic Compatible
•
Fast Switching Speed, t
TRANS
<250ns
•
Break-Before-Make action eliminates momentary crosstalk
•
Rail-to-Rail Analog Signal Range
•
Low Power Consumption, <300µW
•
Packaging (Pb-free & Green available):
- 16-pin SOIC (W)
Description
The PS398/PS399 are improved high precision analog multiplexers.
The PS398, an 8-channel single-ended mux, selects one of eight
inputs to a common output as determined by a 3-bit address
A0-A2. An EN (enable) pin when low disables all switches, use-
ful when stacking several devices. The PS399 is a 4-channel
differential multiplexer. It selects one of four differential inputs to
a common differential output as determined by a 2-bit address A0,
A1. An EN pin may be driven low to disable all switches.
These multiplexers operate with dual supplies from +3V to +8V.
Single-supply operation is possible from +3V to +15V.
With +5V power supplies, the PS398/PS399 guarantee <100-ohm
on-resistance. On-Resistance matching between channels is within
6-ohm. On-Resistance flatness is less than 11-ohm over the speci-
fied signal range.
Each switch conducts current equally well in either direction when
on. In the off state each switch blocks voltages up to the power-
supply rails.
Both devices guarantee low leakage currents (<2.5nA at +85
o
C)
and fast switching speeds (t
TRANS
<250ns). Break-before-make
switching action protects against momentary crosstalk between
channels.
Applications
•
•
•
•
•
•
Data Acquisition Systems
Audio Switching and Routing
Test Equipment
PBX, PABX
Telecommunication Systems
Battery-Powered Systems
Block Diagrams and Pin Configurations
PS398
A0
EN
V-
NO1
NO2
1
2
3
4
5
Decoders/Drivers
PS399
16
A1
AO
EN
V-
1
2
3
Decoders/Drivers
16
A1
15
A2
14
GND
13
V+
12
NO5
11
NO6
10
NO7
9
NO8
15
GND
14
V+
13
NO1B
12
NO2B
11
NO3B
10
NO4B
9
COMB
NO1A
4
NO2A
5
NO3A
6
NO4A
7
COMA
8
NO3
6
NO4
7
COM
8
1
PS8185F
09/28/04
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
