PS398 Datasheet, PDF (1/11 Pages) Pericom Semiconductor Corporation – Precision 8-Ch, Diff. 4-Ch, 17V Analog Multiplexers

PS398/PS399
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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^oC, I_COM(ON), <2.5nA @ +85^oC
• 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)
Applications
• Data Acquisition Systems
• Audio Switching and Routing
• Test Equipment
• PBX, PABX
• Telecommunication Systems
• Battery-Powered Systems
Block Diagrams and Pin Configurations
PS398
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^oC)
and fast switching speeds (t_TRANS <250ns). Break-before-make
switching action protects against momentary crosstalk between
channels.
PS399
A0 ¹
16 A1
EN ^{2 Decoders/Drivers 15} A2
V- ³
NO1 4
14 GND
13 V+
NO2 5
12 NO5
NO3 6
11 NO6
NO4 7
10 NO7
COM 8
9 NO8
AO ¹
16 A1
EN ^{2 Decoders/Drivers 15} GND
V- ³
NO1A 4
14 V+
13 NO1B
NO2A 5
12 NO2B
NO3A 6
11 NO3B
NO4A 7
10 NO4B
COMA 8
9 COMB
1
PS8185F
09/28/04