MAX4510 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Rail-to-Rail, Fault-Protected, SPST Analog Switches

19-1542; Rev 0; 10/99
Rail-to-Rail, Fault-Protected,
SPST Analog Switches
General Description
The MAX4510/MAX4520 single-pole/single-throw (SPST),
fault-protected analog switches feature a fault-protected
input and Rail-to-Rail^® signal-handling capability. The
normally open (NO) and normally closed (NC) terminals
are protected from overvoltage faults up to 36V during
power-on and 44V with power off. During a fault condi-
tion, the switch input terminal (NO or NC) becomes an
open circuit; only nanoamperes of leakage current flow
from the fault source, and the switch output (COM) fur-
nishes up to 13mA of the appropriate polarity supply
voltage to the load. This ensures unambiguous rail-to-rail
outputs when a fault begins and ends.
On-resistance is 160Ω max. The off-leakage current is
only 0.5nA at +25°C and 10nA at +85°C. The MAX4510
is a normally closed switch, while the MAX4520 is a
normally open switch. These CMOS switches operate
with dual power supplies ranging from ±4.5V to ±20V
or a single supply between +9V and +36V.
The digital input has +0.8V and +2.4V logic thresholds,
ensuring both TTL- and CMOS-logic compatibility when
using ±15V or a single +12V supply. The MAX4510/
MAX4520 are available in 6-pin SOT23 and 8-pin µMAX
packages.
Features
o ±40V Fault Protection with Power Off
±36V Fault Protection with ±15V Supplies
o Switch is Off with Power Removed
o Rail-to-Rail Signal Handling
o 160Ω max Signal Paths with ±15V Supplies
o On-Switch Turns Off with Overvoltage
o 0.5nA Off-Leakage Current
o Output Clamped to Appropriate Supply Voltage
During Fault Condition; No Transition Glitch
o No Power-Supply Sequencing Required
o ±4.5V to ±20V Dual Supplies
+9V to +36V Single Supply
o Low Power Consumption: <2mW
o TTL- and CMOS-Compatible Logic Inputs with
Single +9V to +15V or ±15V Supplies
Applications
Data Acquisition
Industrial and Process-Control Systems
Avionics
ATE Equipment
Redundant/Backup Systems
Pin Configurations/Truth Tables
TOP VIEW
V+ 1
V- 2
MAX4510
MAX4520
6 NC (NO)
5 COM
Ordering Information
PART
TEMP. RANGE
MAX4510EUT-T -40°C to +85°C
MAX4510EUA -40°C to +85°C
MAX4520EUT-T -40°C to +85°C
MAX4520EUA -40°C to +85°C
PIN-
PACKAGE
6 SOT23-6
8 µMAX
6 SOT23-6
8 µMAX
TOP
MARK
AABZ
—
AADK
—
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
IN 3
( ) ARE FOR MAX4520.
SOT23
4 GND
IN
MAX4510
MAX4520
0
ON
OFF
1
OFF
ON
SWITCHES SHOWN FOR LOGIC "0" INPUT.
ALL SWITCHES ARE OFF WITH POWER REMOVED.
Pin Configurations continued at end of data sheet.
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