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Part: MAX4507EAP
Category:
Analog & Mixed-Signal Processing
-> Switches & Multiplexers
-> Analog Switches
Description: MAX4506, MAX4507 Fault-Protected, High-voltage Signal-line Protectors
Company: Maxim Integrated Products
Datasheet: Download MAX4507EAP datasheet File size : 158 kB
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Datasheet text preview:
19-1415; Rev 2; 2/03
Fault-Protected, High-Voltage Signal-Line Protectors
General Description
The MAX4506/MAX4507 multiple, two-terminal signal-line protectors are pin-compatible with the industry-standard MAX366/MAX367. These new circuit protectors feature fault-protected inputs and Rail-to-Rail® signal handling capability. The input pins are protected from overvoltage faults up to ±36V with power on or ±40V with power off. During a fault condition, the input terminal becomes an open circuit and only nanoamperes of leakage current flow from the source; but the switch output (OUT_) furnishes typically 19mA from the appropriate polarity supply to the load. This ensures unambiguous rail-to-rail outputs when a fault begins and ends. The MAX4506 contains three independent protectors while the MAX4507 contains eight independent protectors. They can protect both unipolar and bipolar analog signals using either unipolar (+9V to +36V) or bipolar (±8V to ±18V) power supplies. These devices have no logic control inputs; the protectors are designed to be always-on when the supplies are on. On-resistance is 100 max and matched within 7, and on-leakage is less than 0.5nA at TA = +25°C. The MAX4506 is available in 8-pin SO/DIP packages. The MAX4507 is available in 20-pin SSOP and 18-pin SO/DIP packages.
Features
o Overvoltage Protection ±40V with Power Off ±36V with Power On o Open Signal Paths with Power Off o Output Clamps to Either Rail with an Input Overvoltage o Any On Channel Output is Not Affected by an Overvoltage to Any Other Channel o 100 max On-Resistance o 10ns Overvoltage Turn-On Delay o No Latchup During Power Sequencing o Rail-to-Rail Signal Handling o 500 Output Clamp Resistance During Overvoltage
MAX4506/MAX4507
Ordering Information
PART MAX4506CSA MAX4506CPA MAX4506C/D MAX4506ESA MAX4506EPA MAX4506MJA TEMP RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -55°C to +125°C PIN-PACKAGE 8 SO 8 Plastic DIP Dice* 8 SO 8 Plastic DIP 8 CERDIP**
Applications
Process-Control Systems Hot-Insertion Boards/Systems Data-Acquisition Systems Redundant/Backup Systems ATE Equipment Sensitive Instruments
Ordering Information continued at end of data sheet. *Contact factory for dice specifications. **Contact factory for availability.
Typical Operating Circuit
SWITCHED +15V
Pin Configurations
TOP VIEW
P
MAX4506
1 IN1 2 IN2 3 IN3 4 V-
V+
8
+15V
IN1 1 IN2 2
8 7
V+ OUT1 OUT2 OUT3
OUT1 7 OUT2 6 OUT3 5 100k OP AMP
MAX4506
IN3 3 6 5 V- 4
SO/DIP
-15V
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Pin Configurations continued at end of data sheet. 1
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Fault-Protected, High-Voltage Signal-Line Protectors MAX4506/MAX4507
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND) V+ ......-0.3V to +44.0V V- .......-44.0V to +0.3V V+ to V-.......-0.3V to +44.0V IN_ or OUT_ .......±44V IN_ Overvoltage with Power On..........±36V IN_ Overvoltage with Power Off..........±40V Continuous Current into Any Terminal......±30mA Peak Current into Any Terminal (pulsed at 1ms, 10% duty cycle).........±70mA Continuous Power Dissipation (TA = +70°C) 8-Pin Narrow SO (derate 5.88mW/°C above +70°C) ....471mW 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) .....727mW 8-Pin CERDIP (derate 8.00mW/°C above +70°C) ..640mW 18-Pin Wide SO (derate 9.52mW/ °C above +70°C) .......762mW 18-Pin Plastic DIP (derate 11.11mW/ °C above +70°C) ...889mW 18-Pin CERDIP (derate 10.53mW/ °C above +70°C) ......842mW 20-Pin SSOP (derate 11.11mW/°C above +70°C) ..640mW Operating Temperature Ranges MAX4506C_A /MAX4607C_ _ .....0°C to +70°C MAX4506E_A/MAX4607E_ _ ...-40°C to +85°C MAX4506MJA/MAX4607MJN ......-55°C to +125°C Storage Temperature Range .....-65°C to +160°C Lead Temperature (soldering, 10s) .........+300°C
RECOMMENDED OPERATING GUIDELINES
V+ to GND .....-0.3V to +40V IN_ to OUT_..........40V Differential V- to GND ......-32V to +0.3V Continuous Current into Any Terminal ......30mA V+ to V- ..........40V Peak Current into Any Terminal IN_.......±40V (pulsed at 1ms, 10% duty cycle) .........70mA OUT_ .......V+ to VNote 1: OUT_ pins are not fault protected. Signals on OUT_ exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to maximum current rating. Note 2: IN_ pins are fault protected. Signals on IN_ exceeding -36V to +36V may damage the device. These limits apply with power applied to V+ or V-, or ±40V with V+ = V- = 0.
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V+ = +15V, V- = -15V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3) PARAMETER ANALOG SWITCH Fault-Free Analog Signal Range (Note 4) Analog Signal-Path Resistance VIN_ V+ = +15V, V- = -15V, VIN_ = ±15V VIN_ = ±10V, IOUT_ = 1mA C, E, M +25°C RON C, E M +25°C Signal-Path Resistance Match (Note 6) RON VIN_ = VOUT_ = ±10V, IOUT = 1mA C, E M +25°C Signal-Path Leakage Current (Note 7) Input Capacitance FAULT PROTECTION Fault-Protected Analog Signal Range Input Signal-Path Leakage Current, Supplies On VIN_ (Notes 2, 3) Applies with power on Applies with power off C, E, M C, E, M +25°C IIN_ VIN_= ±25V, VOUT_ = open C, E M 2 -36 -40 -1 -10 -10 0.1 +36 +40 +1 +10 +10 V µA µA IOUT_ON CIN VOUT_ = ±10V, VIN_ = ±10V or floating VIN = 0, f = 1MHz C, E M +25°C 1 V65 V+ 100 125 150 7 10 12 V SYMBOL CONDITIONS TA MIN TYP MAX UNITS
-0.5
-40 -400 20
+0.5
+40
+400
nA pF
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Fault-Protected, High-Voltage Signal-Line Protectors
ELECTRICAL CHARACTERISTICS --Dual Supplies (continued)
(V+ = +15V, V- = -15V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3) PARAMETER Input Signal-Path Leakage Current, Supplies Off Output Clamp Current, Supplies On Output Clamp Resistance, Supplies On ± Fault Output Turn-On Delay Time (Note 5) ± Fault Recovery Time (Note 5) POWER SUPPLY Power-Supply Range V+, VMAX4506 I+ MAX4507 Power-Supply Current VIN_ = +15V MAX4506 IMAX4507 C, E, M +25°C C, E M +25°C C, E M +25°C C, E M +25°C C, E M -150 -175 -200 -250 -300 -400 -160 µA -90 160 ±8 90 ±18 150 175 200 250 300 400 µA V SYMBOL IIN_ CONDITIONS VIN_= ±40V, VOUT_ = open, V+ = 0, V- = 0 VIN_= +25V VIN_= -25V IOUT = 1mA VIN_= +25V VIN_= -25V TA +25°C C, E M IOUT_ ROUT_ +25°C +25°C +25°C +25°C +25°C +25°C MIN -1 -10 -10 13 -26 19 -19 0.5 0.4 10 2.5 TYP 0.2 MAX +1 +10 +10 26 -13 1.0 1.0 UNITS µA µA mA k ns µs
MAX4506/MAX4507
RL = 10k, VIN_ = ±25V RL = 10k, VIN_ = ±25V
ELECTRICAL CHARACTERISTICS--Single Supply
(V+ = +12V, V- = -0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3) PARAMETER ANALOG SWITCH Fault-Free Analog Signal Range (Note 4) Analog Signal-Path Resistance VIN_ V+ = +12V, V- = 0 VIN_ = +12V VIN_ = +10V, IOUT_ = 1mA C, E, M +25°C RON C, E M +25°C Signal-Path Resistance Match (Note 6) RON VIN_ = +10V, IOUT_ = 1mA C, E M +25°C Signal-Path Leakage Current (Note 7) IOUT_(ON) VIN = +10V or floating C, E M 3 0 125 V+ 200 250 300 12 15 20 V SYMBOL CONDITIONS TA MIN TYP MAX UNITS
-0.5
-40 -400
0.05
+0.5 +40 +400 3 nA
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