Dual Adjustable Lowpass Filter Features: Guaranteed Phase and Gain Matching Specs Programmable BW Up to 2.5MHz Programmable Gain (0dB/6dB/12dB/24dB) 9th Order Linear Phase Response Differential, Rail-to-Rail Inputs and Outputs Low Noise: –145dBm/Hz (Input Referred) Low Distortion: –75dBc at 200kHz Simple Pin Programming or SPI Interface Set the Max Speed/Power with an External R Operates from 2.7V to 3.6V Input Range from 0V to 5.5V 4mm × 4mm QFN Package

Single and Dual Micropower High Side Switch Controllers in SOT-23 Features: No External Components Required Internal Voltage Triplers Produce High Side Gate Drive for Logic Level FETs Ultralow Power: 10µA Per Driver ON Current (LTC1982) 20µA ON Current (LTC1981) <1µA Shutdown Current VCC Range: 1.8V to 5V Gate Drive Outputs Driven to Ground During Shutdown Gate Drive Outputs Internally Clamped to 7.5V Max “Gate Drive Ready” Output (LTC1981) Ultrasmall Application Circuit 5-Pin SOT-23 Package (LTC1981) 6-Pin SOT-23 Package (LTC1982)

0.5% Accurate Quad Configurable Supervisor Features: Simultaneously Monitor Four Power Supplies ±0.5% Threshold Accuracy Over Temperature Selectable −4% and −6% Thresholds per Supply: 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V and ±ADJ Adjustable Reset (RST) Timeout Overvoltage and Negative Voltage Monitoring Push-Pull or Open-Drain RST Output Margin Pin RDIS for Reset Disable H-Grade Temperature Range 16-Lead 3mm × 3mm QFN

0.5% Accurate Quad Configurable Supervisor Features: Simultaneously Monitor Four Power Supplies ±0.5% Threshold Accuracy Over Temperature Selectable −4% and −6% Thresholds per Supply: 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V and ±ADJ Adjustable Reset (RST) Timeout Overvoltage and Negative Voltage Monitoring Push-Pull or Open-Drain RST Output Margin Pin RDIS for Reset Disable H-Grade Temperature Range 16-Lead 3mm × 3mm QFN

Dual Wide Range Power Monitor Features: Rail-to-Rail Input Range: 0V to 100V Wide Input Supply Range: 2.7V to 100V Measures Current, Voltage, and Power Shunt Regulator for Supplies >100V 8-/12-Bit ADCs with Less Than ±0.3% Total Unadjusted Error Four General Purpose Inputs/Outputs Configurable as ADC Inputs Continuous Scan and Snapshot Modes Stores Minimum and Maximum Measurements Alerts When Alarm Thresholds Exceeded Shutdown Mode with IQ < 50μA Split SDA Pin Eases Opto-Isolation Available in 16-Lead 4mm × 3mm DFN and MSOP Packages

Dual Wide Range Power Monitor Features: Rail-to-Rail Input Range: 0V to 100V Wide Input Supply Range: 2.7V to 100V Measures Current, Voltage, and Power Shunt Regulator for Supplies >100V 8-/12-Bit ADCs with Less Than ±0.3% Total Unadjusted Error Four General Purpose Inputs/Outputs Configurable as ADC Inputs Continuous Scan and Snapshot Modes Stores Minimum and Maximum Measurements Alerts When Alarm Thresholds Exceeded Shutdown Mode with IQ < 50μA Split SDA Pin Eases Opto-Isolation Available in 16-Lead 4mm × 3mm DFN and MSOP Packages

Dual Wide Range Power Monitor Features: Rail-to-Rail Input Range: 0V to 100V Wide Input Supply Range: 2.7V to 100V Measures Current, Voltage, and Power Shunt Regulator for Supplies >100V 8-/12-Bit ADCs with Less Than ±0.3% Total Unadjusted Error Four General Purpose Inputs/Outputs Configurable as ADC Inputs Continuous Scan and Snapshot Modes Stores Minimum and Maximum Measurements Alerts When Alarm Thresholds Exceeded Shutdown Mode with IQ < 50μA Split SDA Pin Eases Opto-Isolation Available in 16-Lead 4mm × 3mm DFN and MSOP Packages

Dual Wide Range Power Monitor Features: Rail-to-Rail Input Range: 0V to 100V Wide Input Supply Range: 2.7V to 100V Measures Current, Voltage, and Power Shunt Regulator for Supplies >100V 8-/12-Bit ADCs with Less Than ±0.3% Total Unadjusted Error Four General Purpose Inputs/Outputs Configurable as ADC Inputs Continuous Scan and Snapshot Modes Stores Minimum and Maximum Measurements Alerts When Alarm Thresholds Exceeded Shutdown Mode with IQ < 50μA Split SDA Pin Eases Opto-Isolation Available in 16-Lead 4mm × 3mm DFN and MSOP Packages

Programmable Quad Supply Monitor with Adjustable Reset and Watchdog Timers Features: Simultaneously Monitors Four Supplies 16 User Selectable Combinations of 5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V and/or ±Adj Voltage Thresholds Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Over Temperature Selectable Supply Tolerance: 5% and 10% Below Monitored Voltage (LTC2901-3/LTC2901-4) Low Supply Current: 43µA Typ Adjustable Reset Time Adjustable Watchdog Time Open-Drain RST Output (LTC2901-1/LTC2901-3) Push-Pull RST Output (LTC2901-2/LTC2901-4) Individual Nondelayed Monitor Output for Each Supply Power Supply Glitch Immunity Guaranteed RST for VCC ≥ 1V 16-Lead Narrow SSOP Package

Programmable Quad Supply Monitor with Adjustable Reset and Watchdog Timers Features: Simultaneously Monitors Four Supplies 16 User Selectable Combinations of 5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V and/or ±Adj Voltage Thresholds Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Over Temperature Selectable Supply Tolerance: 5% and 10% Below Monitored Voltage (LTC2901-3/LTC2901-4) Low Supply Current: 43µA Typ Adjustable Reset Time Adjustable Watchdog Time Open-Drain RST Output (LTC2901-1/LTC2901-3) Push-Pull RST Output (LTC2901-2/LTC2901-4) Individual Nondelayed Monitor Output for Each Supply Power Supply Glitch Immunity Guaranteed RST for VCC ≥ 1V 16-Lead Narrow SSOP Package