參數資料
| 型號： | PS321CPA |
| 廠商： | Pericom |
| 文件頁數： | 1/6頁 |
| 文件大小： | 0K |
| 描述： | IC SWITCH DUAL SPST 8DIP |
| 產品變化通告： | Product Discontinuation 02/Apr/2002 |
| 標準包裝： | 50 |
| 功能： | 開關 |
| 電路： | 2 x SPST - NC |
| 導通狀態電阻： | 35 歐姆 |
| 電壓電源： | 雙電源 |
| 電壓 - 電源，單路/雙路(±)： | ±3 V ~ 8 V |
| 電流 - 電源： | 80µA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 8-DIP（0.300"，7.62mm） |
| 供應商設備封裝： | 8-PDIP |
| 包裝： | 管件 |
1
PS8183F
02/15/06
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PS320/PS321/PS322
Precision, Dual-Supply Analog Switches
Features
Low On-Resistance (17ohms typ.) Minimizes Distortion and
Error Voltages
Low Glitching Reduces Step Errors in Sample-and-Holds
Split-Supply Operation (±3V to ±8V)
Improved Second Sources for MAX320/MAX321/MAX322
On-Resistance Matching Between Channels, 0.2ohm typ.
On-Resistance Flatness, <2ohm typ.
Low Off-Channel Leakage, <5nA @ +85°C
TTL/CMOS Logic Compatible
Fast Switching Speed, tON <150ns
GuaranteedBreak-Before-Makeaction(PS322)eliminates
momentary crosstalk
Rail-to-Rail Analog Signal Dynamic Range
Low Power Consumption, <1.25mW
Packaging(Pb-free&Green):
— 8-pin MSOP (U)
— 8-pin SOIC (W)
Applications
Audio Switching and Routing
Portable Instruments
Data Acquisition Systems
Sample-and-Holds
Telecommunication Systems
Battery-Powered Systems
Switches shown for logic “0” input
Top View
Functional Diagrams, Pin Configurations, and Truth Tables
Top View
Description
The PS320/PS321/PS322 are improved high-precision, medium volt-
age analog switches designed to operate with ±3V to ±8V power
supplies. The PS320 is a dual, single-pole single-throw (SPST),
normally open (NO) switch. The PS321 has the same pinout as the
PS320 but it has two normally closed (NC) switches. The PS322 has
one normally open (NO) and one normally closed (NC) switch per
package. When on, each switch conducts current equally well in
either direction. In the off state, each switch blocks voltages up to
the power-supply rails.
With ±5V power supplies, the PS320/PS321/PS322 guarantee
<35ohm ON-resistance. ON-resistance matching between channels
is within 2ohm. ON-resistance flatness is less than 4ohm over the
specified range. All three devices guarantee low leakage currents
(<100pA @25°C, <10nA @+85°C) and fast switching speeds (tON
<150ns). Break-before-make switching action protects against
momentary crosstalk (PS322).
For single-supply operation the PS323/PS324/PS325 are recom-
mended.
6
7
8
5
1
2
3
4
NC1
COM1
IN2
V-
V+
COM2
NC2
IN1
PS321
6
7
8
5
1
2
3
4
N01
COM1
IN2
V-
V+
COM2
NC2
IN1
PS322
6
7
8
5
1
2
3
4
NO1
COM1
IN2
V-
V+
COM2
NO2
IN1
PS320
0
2
3
S
P
c
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g
o
Lh
c
t
i
w
S
0
1
F
O
N
O
1
2
3
S
P
c
i
g
o
Lh
c
t
i
w
S
0
1
N
O
F
O
2
3
S
P
c
i
g
o
L
h
c
t
i
w
S
1
h
c
t
i
w
S
2
0
1
F
O
N
O
N
O
F
O
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