PS394 Datasheet, PDF (1/8 Pages) Pericom Semiconductor Corporation – Precision, Quad, SPDT, 17V Analog Switch

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Precision, Quad, SPDT, 17V Analog Switch
Features
• Low On-Resistance (17 Ohm typ.) Minimizes Distortion
and Error Voltages
• Low Glitching Reduces Step Errors and Improves
Settling Times. Charge Injection: <10pC
• Dual-Supply Operation (±2.7V to ±8V)
• Single-Supply Operation (+2.7V to +15V)
• Improved Second Sources for MAX394
• On-Resistance Matching Between Channels: <2 Ohm
• On-Resistance Flatness: 4 Ohm (Max.)
• Low Off-Channel Leakage, I_NO(OFF) < 2.5nA @ +85°C
• TTL/CMOS Logic Compatible (w/ +5V or ±5V supplies)
• Break-Before-Make action eliminates momentary crosstalk
• Rail-to-Rail Analog Signal Range
• Narrow SOIC and QSOP Packages Minimize Board Area
Applications
• Data Acquisition Systems
• Audio Switching and Routing
• Test Equipment
• PBX, PABX
• Telecommunication Systems
• Battery-Powered Systems
Pin Configuration
IN1 ¹
NO1 ²
COM1 ³
NC1 ⁴
V- ⁵
GND ⁶
NC2 ⁷
COM2 ⁸
NO2 ⁹
IN2 ¹⁰
20 _IN4
19 _NO4
18 _COM4
17 _NC4
16 _V+
15 _N.C.
14 _NC3
13 _COM3
12 _NO3
11 _IN3
Description
The PS394 is a precision, low-voltage, quad, single-pole/double-
throw (SPDT) analog switch. The four independent switches oper-
ate with bipolar supplies ranging from ±2.7V to ±8V, or with a single
supply of +2.7V to +15V. The PS394 offers low On-resistance (less
than 35 Ohm), guaranteed to match within 2 Ohm between channels
and to remain flat over the analog signal range (4 Ohm Max.). It also
offers break-before-make switching (10ns typical), with turn-off
times less than 75ns and turn-on times less than 130ns. The PS394
is ideal for portable operation since quiescent current runs less than
1µA with all inputs high or low.
This monolithic, quad switch is fabricated using Pericom’s 17V
silicon-gate process. Design improvements guarantee extremely low
charge injection (10pC), low power consumption (10µW), and elec-
trostatic discharge (ESD) greater than 2000V.
Logic Inputs are TTL and CMOS compatible and guaranteed over
a +0.8V to +2.4V range. Logic inputs and switched analog signals can
range anywhere between the supply voltages without damage.
Pin Description
Name
IN1 - IN4
NO1 - NO4
COM1 - COM4
NC1 - NC4
V–
GND
N.C.
V+
Function
Logic-Levels Inputs
Normally Open Swithces
Common Switch Poles
Normally Closed Switches
Negative Power Supply
Ground
Not Internally Connected
Positive Power Supply
1
PS8444
01/13/00