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Crosstalk, electromagnetic interference (EMI), and electrostatic discharge (ESD) can cause voltage spikes that destroy input circuitry. Signal line protection circuits significantly increase survivability by clamping over-voltage events, including those from ESD.
Also see:
Power Protection and Control
Featured Products
MAX6818 ±15kV ESD-Protected, Single/Dual/Octal, CMOS Switch Debouncers
The MAX6816/MAX6817/MAX6818 are single, dual, and octal switch debouncers that provide clean int...
- Switch Debouncer Integration Simplifies System Interface to Mechanical Switches
- Single-Supply Operation from +2.7V to +5.5V
- No External Components Required
- Single (MAX6816), Dual (MAX6817), and Octal (MAX6818) Versions Available
- 6µA Supply Current
- Built-In Protection Circuitry Improves System Reliability
- Inputs Can Exceed Power Supplies up to ±25V
- ESD Protection for Input Pins
- ±15kV—Human Body Model
- ±8kV—IEC 1000-4-2, Contact Discharge
- ±15kV—IEC 1000-4-2, Air-Gap Discharge
- Octal Version (MAX6818) Provides Direct Data Bus Interface
- Three-State Outputs for Directly Interfacing to µP (MAX6818)
- Switch Change-of-State Output Simplifies Polling and Interrupts (MAX6818)
- Pin-Compatible with 'LS573 (MAX6818)
MAX6816 ±15kV ESD-Protected, Single/Dual/Octal, CMOS Switch Debouncers
The MAX6816/MAX6817/MAX6818 are single, dual, and octal switch debouncers that provide clean int...
- Switch Debouncer Integration Simplifies System Interface to Mechanical Switches
- Single-Supply Operation from +2.7V to +5.5V
- No External Components Required
- Single (MAX6816), Dual (MAX6817), and Octal (MAX6818) Versions Available
- 6µA Supply Current
- Built-In Protection Circuitry Improves System Reliability
- Inputs Can Exceed Power Supplies up to ±25V
- ESD Protection for Input Pins
- ±15kV—Human Body Model
- ±8kV—IEC 1000-4-2, Contact Discharge
- ±15kV—IEC 1000-4-2, Air-Gap Discharge
- Octal Version (MAX6818) Provides Direct Data Bus Interface
- Three-State Outputs for Directly Interfacing to µP (MAX6818)
- Switch Change-of-State Output Simplifies Polling and Interrupts (MAX6818)
- Pin-Compatible with 'LS573 (MAX6818)
MAX6817 ±15kV ESD-Protected, Single/Dual/Octal, CMOS Switch Debouncers
The MAX6816/MAX6817/MAX6818 are single, dual, and octal switch debouncers that provide clean int...
- Switch Debouncer Integration Simplifies System Interface to Mechanical Switches
- Single-Supply Operation from +2.7V to +5.5V
- No External Components Required
- Single (MAX6816), Dual (MAX6817), and Octal (MAX6818) Versions Available
- 6µA Supply Current
- Built-In Protection Circuitry Improves System Reliability
- Inputs Can Exceed Power Supplies up to ±25V
- ESD Protection for Input Pins
- ±15kV—Human Body Model
- ±8kV—IEC 1000-4-2, Contact Discharge
- ±15kV—IEC 1000-4-2, Air-Gap Discharge
- Octal Version (MAX6818) Provides Direct Data Bus Interface
- Three-State Outputs for Directly Interfacing to µP (MAX6818)
- Switch Change-of-State Output Simplifies Polling and Interrupts (MAX6818)
- Pin-Compatible with 'LS573 (MAX6818)
MAX20091 35-Channel Contact Monitor
The MAX20091 is a 35-channel automotive contact monitor for automotive applications. Ten contact...
- Reduces Cost by Eliminating Multiple Microprocessors for Switch-Monitoring Functions
- Configurable Wetting Current Improves Switch Performance
- SPI Interface for Control/Readback
- Built-In Hysteresis and Deglitching
- Interrupt Output to Processor
- High Channel Count Reduces PCB Area Requirements
- Very Low Operating Current Enables Scanning in Key-Off State with Minimal Current Draw from 12V Battery
- Ultra-Low 88µA (typ) Operating Current in Polling Mode
- Robust Switch Input Eliminate Need for External Protection Components
- 5.5V to 28V Operating Voltage Range
- Switch Inputs Withstand 42V and Reverse Battery
- IN0-34 ESD Performance to ISO 10605 (In-Circuit): ±10kV Contact
MAX13038 Automotive Contact Monitor and Level Shifters with LDO Regulator
The MAX13037/MAX13038 contact monitor and level shifters monitor and debounce eight remote mecha...
- +6V to +26V Operating Voltage Range
- +42V Compatibility on BAT
- Switch Inputs Withstand Reverse Battery
- 150mA LDO, +5V (MAX13037) or +3.3V (MAX13038)
- Ultra-Low Operating Current 28µA (typ) in 64ms Scan Mode with LDO ON
- Resistor Adjustable Switching Hysteresis
- Watchdog and Reset
- Built-In Switch Debouncing
- Interrupt Output
- Immunity to Transients
- High Modularity
- Thermal Protection
- ±8kV HBM ESD Protection on IN0–IN7 Without External Components
- Two Inputs (IN0, IN1) Programmable as Direct Outputs
- Four Inputs (IN4–IN7) Programmable for BAT or GND Related Switches
MAX13037 Automotive Contact Monitor and Level Shifters with LDO Regulator
The MAX13037/MAX13038 contact monitor and level shifters monitor and debounce eight remote mecha...
- +6V to +26V Operating Voltage Range
- +42V Compatibility on BAT
- Switch Inputs Withstand Reverse Battery
- 150mA LDO, +5V (MAX13037) or +3.3V (MAX13038)
- Ultra-Low Operating Current 28µA (typ) in 64ms Scan Mode with LDO ON
- Resistor Adjustable Switching Hysteresis
- Watchdog and Reset
- Built-In Switch Debouncing
- Interrupt Output
- Immunity to Transients
- High Modularity
- Thermal Protection
- ±8kV HBM ESD Protection on IN0–IN7 Without External Components
- Two Inputs (IN0, IN1) Programmable as Direct Outputs
- Four Inputs (IN4–IN7) Programmable for BAT or GND Related Switches
MAX13036EVKIT MAX13036 Evaluation Kit/Evaluation System
The MAX13036 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB)...
- 7V to 27V Operating Voltage Range
- Proven PCB Layout
- Windows 98SE/2000/XP-Compatible Evaluation Software
- Fully Assembled and Tested
- EV System: USB PC Connection
MAX13036EVCMAXQU MAX13036 Evaluation Kit/Evaluation System
The MAX13036 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB)...
- 7V to 27V Operating Voltage Range
- Proven PCB Layout
- Windows 98SE/2000/XP-Compatible Evaluation Software
- Fully Assembled and Tested
- EV System: USB PC Connection
MAX13036 Contact Monitor and Level Shifter
The MAX13036 contact monitor and level shifter monitors and debounces eight remote mechanical sw...
- +6V to +26V Operating Voltage Range
- +42V Compatibility on BAT
- Inputs Withstand Reverse Battery
- Withstands Dynamic Battery Voltage Drop While VL is Present
- Ultra-Low Operating Current 17µA (typ) in Scan Mode
- Resistor-Adjustable Switching Hysteresis
- CMOS-Compatible Logic Outputs (+2.7V min)
- Built-In Switch Debouncing
- Interrupt Output
- Immunity to Transients
- High Modularity
- Thermal Protection
- ±8kV HBM ESD Protection on IN0–IN7 Without External Components
- Two Inputs (IN0, IN1) Programmable as Direct Outputs
- Four Inputs (IN4–IN7) Programmable for BAT or GND Related Switches
MAX3203E Low-Capacitance, 2/3/4/6-Channel, ±15kV ESD-Protection Arrays for High-Speed Data Interfaces
The MAX3202E/MAX3203E/MAX3204E/MAX3206E are low-capacitance ±15kV ESD-protection diode arrays de...
- High-Speed Data Line ESD Protection
- ±15kV—Human Body Model
- ±8kV—IEC 61000-4-2, Contact Discharge
- ±15kV—IEC 61000-4-2, Air-Gap Discharge
- Tiny WLP Package Available
- Low 5pF Input Capacitance
- Low 1nA (max) Leakage Current
- Low 1nA Supply Current
- +0.9V to +5.5V Supply Voltage Range
- 2-, 3-, 4-, or 6-Channel Devices Available
MAX6818 ±15kV ESD-Protected, Single/Dual/Octal, CMOS Switch Debouncers
The MAX6816/MAX6817/MAX6818 are single, dual, and octal switch debouncers that provide clean int...
- Switch Debouncer Integration Simplifies System Interface to Mechanical Switches
- Single-Supply Operation from +2.7V to +5.5V
- No External Components Required
- Single (MAX6816), Dual (MAX6817), and Octal (MAX6818) Versions Available
- 6µA Supply Current
- Built-In Protection Circuitry Improves System Reliability
- Inputs Can Exceed Power Supplies up to ±25V
- ESD Protection for Input Pins
- ±15kV—Human Body Model
- ±8kV—IEC 1000-4-2, Contact Discharge
- ±15kV—IEC 1000-4-2, Air-Gap Discharge
- Octal Version (MAX6818) Provides Direct Data Bus Interface
- Three-State Outputs for Directly Interfacing to µP (MAX6818)
- Switch Change-of-State Output Simplifies Polling and Interrupts (MAX6818)
- Pin-Compatible with 'LS573 (MAX6818)
MAX6816 ±15kV ESD-Protected, Single/Dual/Octal, CMOS Switch Debouncers
The MAX6816/MAX6817/MAX6818 are single, dual, and octal switch debouncers that provide clean int...
- Switch Debouncer Integration Simplifies System Interface to Mechanical Switches
- Single-Supply Operation from +2.7V to +5.5V
- No External Components Required
- Single (MAX6816), Dual (MAX6817), and Octal (MAX6818) Versions Available
- 6µA Supply Current
- Built-In Protection Circuitry Improves System Reliability
- Inputs Can Exceed Power Supplies up to ±25V
- ESD Protection for Input Pins
- ±15kV—Human Body Model
- ±8kV—IEC 1000-4-2, Contact Discharge
- ±15kV—IEC 1000-4-2, Air-Gap Discharge
- Octal Version (MAX6818) Provides Direct Data Bus Interface
- Three-State Outputs for Directly Interfacing to µP (MAX6818)
- Switch Change-of-State Output Simplifies Polling and Interrupts (MAX6818)
- Pin-Compatible with 'LS573 (MAX6818)
MAX6817 ±15kV ESD-Protected, Single/Dual/Octal, CMOS Switch Debouncers
The MAX6816/MAX6817/MAX6818 are single, dual, and octal switch debouncers that provide clean int...
- Switch Debouncer Integration Simplifies System Interface to Mechanical Switches
- Single-Supply Operation from +2.7V to +5.5V
- No External Components Required
- Single (MAX6816), Dual (MAX6817), and Octal (MAX6818) Versions Available
- 6µA Supply Current
- Built-In Protection Circuitry Improves System Reliability
- Inputs Can Exceed Power Supplies up to ±25V
- ESD Protection for Input Pins
- ±15kV—Human Body Model
- ±8kV—IEC 1000-4-2, Contact Discharge
- ±15kV—IEC 1000-4-2, Air-Gap Discharge
- Octal Version (MAX6818) Provides Direct Data Bus Interface
- Three-State Outputs for Directly Interfacing to µP (MAX6818)
- Switch Change-of-State Output Simplifies Polling and Interrupts (MAX6818)
- Pin-Compatible with 'LS573 (MAX6818)
MAX20091 35-Channel Contact Monitor
The MAX20091 is a 35-channel automotive contact monitor for automotive applications. Ten contact...
- Reduces Cost by Eliminating Multiple Microprocessors for Switch-Monitoring Functions
- Configurable Wetting Current Improves Switch Performance
- SPI Interface for Control/Readback
- Built-In Hysteresis and Deglitching
- Interrupt Output to Processor
- High Channel Count Reduces PCB Area Requirements
- Very Low Operating Current Enables Scanning in Key-Off State with Minimal Current Draw from 12V Battery
- Ultra-Low 88µA (typ) Operating Current in Polling Mode
- Robust Switch Input Eliminate Need for External Protection Components
- 5.5V to 28V Operating Voltage Range
- Switch Inputs Withstand 42V and Reverse Battery
- IN0-34 ESD Performance to ISO 10605 (In-Circuit): ±10kV Contact
MAX13038 Automotive Contact Monitor and Level Shifters with LDO Regulator
The MAX13037/MAX13038 contact monitor and level shifters monitor and debounce eight remote mecha...
- +6V to +26V Operating Voltage Range
- +42V Compatibility on BAT
- Switch Inputs Withstand Reverse Battery
- 150mA LDO, +5V (MAX13037) or +3.3V (MAX13038)
- Ultra-Low Operating Current 28µA (typ) in 64ms Scan Mode with LDO ON
- Resistor Adjustable Switching Hysteresis
- Watchdog and Reset
- Built-In Switch Debouncing
- Interrupt Output
- Immunity to Transients
- High Modularity
- Thermal Protection
- ±8kV HBM ESD Protection on IN0–IN7 Without External Components
- Two Inputs (IN0, IN1) Programmable as Direct Outputs
- Four Inputs (IN4–IN7) Programmable for BAT or GND Related Switches
MAX13037 Automotive Contact Monitor and Level Shifters with LDO Regulator
The MAX13037/MAX13038 contact monitor and level shifters monitor and debounce eight remote mecha...
- +6V to +26V Operating Voltage Range
- +42V Compatibility on BAT
- Switch Inputs Withstand Reverse Battery
- 150mA LDO, +5V (MAX13037) or +3.3V (MAX13038)
- Ultra-Low Operating Current 28µA (typ) in 64ms Scan Mode with LDO ON
- Resistor Adjustable Switching Hysteresis
- Watchdog and Reset
- Built-In Switch Debouncing
- Interrupt Output
- Immunity to Transients
- High Modularity
- Thermal Protection
- ±8kV HBM ESD Protection on IN0–IN7 Without External Components
- Two Inputs (IN0, IN1) Programmable as Direct Outputs
- Four Inputs (IN4–IN7) Programmable for BAT or GND Related Switches
MAX13036EVKIT MAX13036 Evaluation Kit/Evaluation System
The MAX13036 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB)...
- 7V to 27V Operating Voltage Range
- Proven PCB Layout
- Windows 98SE/2000/XP-Compatible Evaluation Software
- Fully Assembled and Tested
- EV System: USB PC Connection
MAX13036EVCMAXQU MAX13036 Evaluation Kit/Evaluation System
The MAX13036 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB)...
- 7V to 27V Operating Voltage Range
- Proven PCB Layout
- Windows 98SE/2000/XP-Compatible Evaluation Software
- Fully Assembled and Tested
- EV System: USB PC Connection
MAX13036 Contact Monitor and Level Shifter
The MAX13036 contact monitor and level shifter monitors and debounces eight remote mechanical sw...
- +6V to +26V Operating Voltage Range
- +42V Compatibility on BAT
- Inputs Withstand Reverse Battery
- Withstands Dynamic Battery Voltage Drop While VL is Present
- Ultra-Low Operating Current 17µA (typ) in Scan Mode
- Resistor-Adjustable Switching Hysteresis
- CMOS-Compatible Logic Outputs (+2.7V min)
- Built-In Switch Debouncing
- Interrupt Output
- Immunity to Transients
- High Modularity
- Thermal Protection
- ±8kV HBM ESD Protection on IN0–IN7 Without External Components
- Two Inputs (IN0, IN1) Programmable as Direct Outputs
- Four Inputs (IN4–IN7) Programmable for BAT or GND Related Switches
MAX3203E Low-Capacitance, 2/3/4/6-Channel, ±15kV ESD-Protection Arrays for High-Speed Data Interfaces
The MAX3202E/MAX3203E/MAX3204E/MAX3206E are low-capacitance ±15kV ESD-protection diode arrays de...
- High-Speed Data Line ESD Protection
- ±15kV—Human Body Model
- ±8kV—IEC 61000-4-2, Contact Discharge
- ±15kV—IEC 61000-4-2, Air-Gap Discharge
- Tiny WLP Package Available
- Low 5pF Input Capacitance
- Low 1nA (max) Leakage Current
- Low 1nA Supply Current
- +0.9V to +5.5V Supply Voltage Range
- 2-, 3-, 4-, or 6-Channel Devices Available
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