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Pericom Semiconductor Corporation

PS321 Datasheet Preview

PS321 Datasheet

Precision / Dual-Supply Analog Switches

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PS320/PS321/PS3221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
Precision, Dual-Supply Analog Switches
Features
Low On-Resistance (17W 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, 0.2typ.
On-Resistance Flatness, <2typ.
Low Off-Channel Leakage, <5nA @ +85°C
TTL/CMOS Logic Compatible
Fast Switching Speed, tON <150ns
Guaranteed Break-Before-Make action (PS322) eliminates
momentary crosstalk
Rail-to-Rail Analog Signal Dynamic Range
Low Power Consumption, <1.25mW
MSOP Package Minimizes Board Area
Applications
Audio Switching and Routing
Portable Instruments
Data Acquisition Systems
· Sample-and-Holds
Telecommunication Systems
Battery-Powered Systems
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
<35ON-resistance. ON-resistance matching between channels is
within 2. ON-resistance flatness is less than 4over 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.
Functional Diagrams, Pin Configurations, and Truth Tables
PS320
PS321
NO1 1
COM1 2
IN2 3
V- 4
8 V+
7 IN1
6 COM2
5 NO2
NC1 1
COM1 2
IN2 3
V- 4
8 V+
7 IN1
6 COM2
5 NC2
Top View
Top View
Switches shown for logic “0” input
PS320
Logic Switch
0 OFF
1 ON
PS321
Logic Switch
0 ON
1 OFF
N01 1
COM1 2
IN2 3
V- 4
PS322
8 V+
7 IN1
6 COM2
5 NC2
Top View
Logic
0
1
PS322
Switch1 Switch2
OFF ON
ON OFF
1 PS8183D 01/11/01




Pericom Semiconductor Corporation

PS321 Datasheet Preview

PS321 Datasheet

Precision / Dual-Supply Analog Switches

No Preview Available !

PS320/PS321/PS322
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012P34r56e7c8i9s0i1o21n23,4D56u78a90l1-2S3u45p67p89l0y12A34n56a7l8o90g12S12w34i5t6c78h9e01s2
Absolute Maximum Ratings
Voltages Referenced to V–
V+ ...................................................................... -0.3V to +17V
VIN, VCOM, VNC, VNO(1) ............................. (V-) -2V to (V+) +2V
............................................... or 30mA, whichever occurs first
Current (any terminal) ..................................................... 30mA
Peak Current, COM, NO, NC
(pulsed at 1ms, 10% duty cycle) ................................... 100mA
ESD per Method 3015.7 ............................................. > 2000V
Thermal Information
Continuous Power Dissipation
Plastic DIP (derate 6mW/ ºC above +70ºC) .................... 500mW
Narrow SO (derate 6mW/ ºC above +70ºC) .................... 450mW
MSOP (derate 4mW/ ºC above +70ºC) ........................... 330mW
Storage Temperature ........................................ -65ºC to +150ºC
Lead Temperature (soldering, 10s) ................................ +300ºC
Note 1:
Signals on NC, NO, COM, or IN exceeding V+ or V- are clamped
by internal diodes. Limit forward diode current to maximum current
rating
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 - Dual Supplies (V± = ± 5V ±10%, VINH = 3.5V, VINL = 1V)
Parameter
Symbol
Conditions
Temp. (°C) Min.(2)
Analog Switch
Analog Signal Range (3)
VANALOG
ON-Resistance
RON
V+ = 4.5V, V– = –4.5V,
VNO or VNC = ±3.5V
ICOM = 1mA,
Full V–
25
Full
Typ.(1)
16
Max.(2) Units
V+ V
35
45
ON-Resistance Match
Between Channels(4)
RON
V+ = 5V, V– = –5V
VNO or VNC = ±3V,
ICOM = 1mA,
25
Full
0.3 2
4
ON-Resistance Flatness(5) RFLAT(ON)
V+ = 5V, V– = –5V,
ICOM = 1mA ,
VNO or VNC = ±3V
25
Full
14
6
NO or NC Off Leakage INO(OFF) or
Current(6)
INC(OFF)
V+ = 5.5V, V– = –5.5V,
VCOM = ±4.5V,
VNO or VNC = ±4.5V
25 –0.1 –0.01 0.1
Full –5
5
COM Off Leakage
Current(6)
ICOM(OFF)
V+ = 5.5V, V– = –5.5V
VCOM = ±4.5V,
VNO or VNC = ±4.5V
25 –0.1 –0.01 0.1 nA
Full –5
5
COM On Leakage
Current(6)
ICOM(ON)
V+ = 5.5V , V– = –5.5V,
VCOM = ±4.5V
VNO or VNC = ±4.5V
25 –0.2 –0.04 0.2
Full –10
10
continued next page
2 PS8183D 01/11/01


Part Number PS321
Description Precision / Dual-Supply Analog Switches
Maker Pericom Semiconductor Corporation
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PS321 Datasheet PDF






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