PS381 Datasheet, PDF (1/9 Pages) Pericom Semiconductor Corporation – Precision, 17V Analog Switches

PS381/PS383/PS385
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Precision, 17V Analog Switches
Features
• Low On-Resistance (16Ω typ) Minimizes Distortion
and Error Voltages
• Low Glitching Reduces Step Errors in Sample-and-Holds.
Charge Injection, 3pC typ
• Single Supply (+3V to +15V) or Split-Supply
(+3V to +8V) Operation
• Improved Second Sources for MAX381/MAX383/MAX385
• On-Resistance Matching Between Channels, 0.2 Ω typ
• On-Resistance Flatness, 1Ω typ
• Low Off-Channel Leakage, <2.5nA @ +85oC
• TTL/CMOS Logic Compatible
• Rail-to-Rail Analog Signal Dynamic Range
• Low Power Consumption <1µA
Applications
• Instrumentation, ATE
• Sample-and-Holds
• Audio Switching and Routing
• Telecommunication Systems
• PBX, PABX
• Battery-Powered Systems
Description
The PS381/PS383/PS385 are improved high precision, medium
voltage analog switches designed to operate with +3V to +8V
power supplies.
The PS381 has two normally open (NO) switches. The PS383 is a
dual, single-pole double-throw (SPDT) switch. The PS385 is a
dual, double-pole single-throw (DPST) function. 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.
With ±5V power supplies, the PS381/PS383/PS385 guarantee
<30Ω on-resistance. On-resistance matching between channels is
within 2Ω. On-resistance flatness is less than 4Ω over the specified
range. All three devices feature low leakage currents (<2 pA @
25oC, <2.5nA @ +85oC) and fast switching speeds (tON < 130ns).
Break-before-make switching action protects against momentary
crosstalk (PS383).
These switches are fully specified for single +5V operation,
with <45Ω R_ON, <2Ω R_ON match, and <4Ω R_ON flatness.
For operation below 5V the PI5A381A/PI5A383A/PI5A385A
are also recommended.
Functional Diagrams, Pin Configurations, and Truth Tables
COM1 1
N.C. 2
N.C. 3
N.C. 4
N.C 5
N.C. 6
N.C. 7
COM2 8
PS381
16 NO1
15 IN1
14 V-
13 GND
12 N.C.
11 V+
10 IN2
9 NO2
Top View
N.C = No Connect.
.
PS381
Logic Switch
0
OFF
1
ON
COM1 1
N.C. 2
COM3 3
NC3 4
NC4 5
COM4 6
N.C. 7
COM2 8
PS383
16 NO1
15 IN1
14 V-
13 GND
12 N.C.
11 V+
10 IN2
9 NO2
COM1 1
N.C. 2
COM3 3
NO3 4
NO4 5
COM4 6
N.C. 7
COM2 8
PS385
16 NO1
15 IN1
14 V-
13 GND
12 N.C.
11 V+
10 IN2
9 NO2
Top View
Switches shown for logic “0” input
PS383
Logic SW3, SW4 SW1, SW2
0
ON
OFF
1
OFF
ON
Top View
PS385
Logic Switch
0
OFF
1
ON
For free samples and the latest literature: www.pericom.com, or phone [phone]
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PS8186A 07/15/98