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参数资料
| 型号： | PS329EEE |
| 厂商： | PERICOM SEMICONDUCTOR CORP |
| 元件分类： | 多路复用及模拟开关 |
| 英文描述： | 4-CHANNEL, DIFFERENTIAL MULTIPLEXER, PDSO20 |
| 封装： | QSOP-20 |
| 文件页数： | 1/10页 |
| 文件大小： | 446K |
| 代理商： | PS329EEE |
1
PS8386
05/05/99
PS328/PS329
Precision 8-Ch, Diff. 4-Ch, Latchable Analog Multiplexers
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Features
Low On-Resistance (60ohm typ.) Minimizes Distortion
and Error Voltages
Low Glitching Reduces Step Errors and Improves Settling
Times. Charge Injection, < 5pC
Split-Supply Operation (±3V to ±8V)
On-chip TTL Compatible Address Latches
On-Resistance Matching Between Channels, < 6ohm
On-Resistance Flatness, < 11ohm
Low Off-Channel Leakage,
INO(OFF) < 1nA @ +85oC, ICOM(ON), < 2.5nA @ +85oC
TTL/CMOS Logic Compatible
Fast Switching Speed, tTRANS < 250ns
Break-Before-Make action eliminates momentary crosstalk
Rail-to-RailAnalog Signal Range
Low Power Consumption, < 300W
QSOP Package Minimizes BoardArea
Applications
Data Acquisition Systems
Audio Switching and Routing
Automatic Test Equipment
Telecommunication Systems
Medical Instrumentation
Description
The PS328/PS329 are improved high precision analog multiplexers.
The PS328, 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, useful
when stacking several devices. The PS329 is a 4-channel differen-
tial multiplexer. It selects one of four differential inputs to a com-
mon differential output as determined by a 2-bit address A0, A1.
An EN pin may be driven low to disable all switches.
On-chip address latches simplify interface in microprocessor con-
trolled applications.
These multiplexers operate with dual supplies from +3V to +8V.
Single-supply operation is possible from +3V to +15V.
With +5V power supplies, the PS328/PS329 guarantee < 100ohm
on-resistance. On-resistance matching between channels is within
6ohm. On-resistance flatness is less than 11ohm over the specified
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 +85oC)
and fast switching speeds (tTRANS < 250ns). Break-before-make
switching action protects against momentary crosstalk between
channels.
Functional Block Diagrams and Pin Configurations
Top View
PS328
For free samples and the latest literature: www.pericom.com, or phone 1-800-435-2336
8
Decoders/Drivers
Latches
1
2
3
4
5
6
7
11
16
15
18
17
14
13
12
WR
A0
EN
V-
NO1
NO2
NO3
NO4
9
COM
10
NO8
RS
A1
A2
GND
V+
NO5
NO6
NO7
8
Decoders/Drivers
Latches
1
2
3
4
5
6
7
11
16
15
18
17
14
13
12
WR
A0
EN
V-
NO1A
NO2A
NO3A
NO4A
9
COMA
10
COMB
RS
A1
GND
V+
NO2B
NO1B
NO3B
NO4B
Top View
PS329
相关PDF资料 |
PDF描述 |
|---|---|
| PS329EPE | 4-CHANNEL, DIFFERENTIAL MULTIPLEXER, PDIP18 |
| PS328EEE | 8-CHANNEL, SGL ENDED MULTIPLEXER, PDSO20 |
| PS328EPE | 8-CHANNEL, SGL ENDED MULTIPLEXER, PDIP18 |
| PS394EPPE | QUAD 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, PDIP20 |
| PS394CPP | QUAD 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, PDIP20 |
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