Very Low Noise, Low Distortion Active RC Quad Universal Filter Features: Continuous Time—No Clock Four 2nd Order Filter Sections, 10kHz to 150kHz Center Frequency ±0.5% Typical Center Frequency Accuracy ±0.3% Typical Center Frequency Accuracy (A Grade) Wide Variety of Response Shapes Lowpass, Bandpass and Highpass Responses 103dB Typical S/N, ±5V Supply (Q = 1) 97dB Typical S/N, Single 5V Supply (Q = 1) 96dB Typical S/(N + THD) at ±5V Supply, 20kHz Input Rail-to-Rail Input and Output Voltages DC Accurate to 3mV (Typ) “Zero-Power” Shutdown Mode Single or Dual Supply, 5V to 10V Total Resistor-Programmable fO, Q, Gain

Very Low Noise, Low Distortion Active RC Quad Universal Filter Features: Continuous Time—No Clock Four 2nd Order Filter Sections, 10kHz to 150kHz Center Frequency ±0.5% Typical Center Frequency Accuracy ±0.3% Typical Center Frequency Accuracy (A Grade) Wide Variety of Response Shapes Lowpass, Bandpass and Highpass Responses 103dB Typical S/N, ±5V Supply (Q = 1) 97dB Typical S/N, Single 5V Supply (Q = 1) 96dB Typical S/(N + THD) at ±5V Supply, 20kHz Input Rail-to-Rail Input and Output Voltages DC Accurate to 3mV (Typ) “Zero-Power” Shutdown Mode Single or Dual Supply, 5V to 10V Total Resistor-Programmable fO, Q, Gain

Active RC, 4th Order Lowpass Filter Family Features: Extremely Easy to Use—A Single Resistor Value Sets the Cutoff Frequency (256Hz < fC < 256kHz) Extremely Flexible—Different Resistor Values Allow Arbitrary Transfer Functions with or without Gain (256Hz < fC < 256kHz) Supports Cutoff Frequencies Up to 360kHz Using FilterCAD™ LTC1563-2: Unity-Gain Butterworth Response Uses a Single Resistor Value, Different Resistor Values Allow Other Responses with or without Gain LTC1563-3: Unity-Gain Bessel Response Uses a Single Resistor Value, Different Resistor Values Allow Other Responses with or without Gain Rail-to-Rail Input and Output Voltages Operates from a Single 3V (2.7V Min) to ±5V Supply Low Noise: 36µVRMS for fC = 25.6kHz, 60µVRMS for fC = 256kHz fC Accuracy < ±2% (Typ) DC Offset < 1mV Cascadable to Form 8th Order Lowpass Filters Available in Narrow SSOP-16 Package

650kHz Continuous Time, Linear Phase Lowpass Filter Features: 7th Order, 650kHz Linear Phase Filter in an SO-8 Differential Inputs and Outputs Operates on a Single 5V or a ±5V Supply Low Offset: 5mV Typical 75dB THD and SNR 78dB SNR Shutdown Mode Requires No External Components Requires No External Clock Signal

Single and Dual Protected High Side Switches Features: Extremely Low RDS(ON) Switch: 0.07 No Parasitic Body Diode Built-In Short-Circuit Protection: 2A Built-In Thermal Overload Protection Operates from 2.7V to 5.5V Inrush Current Limited Ultralow Standby Current: 0.01µA Built-In Charge Pump Controlled Rise and Fall Times: tR = 1ms Dual Switch in Narrow 16-Pin SO Package

3.3V Ultralow Power RS485 Transceiver Features: True RS485 from a Single 3.3V Supply Low Power: ICC = 500µA Max with Driver Disabled ICC = 600µA Max with Driver Enabled, No Load 1µA Quiescent in Shutdown Mode -7V to 12V Common Mode Range Permits ±7V Ground Difference Between Devices on the Data Line Thermal Shutdown Protection Power Up/Down Glitch-Free Driver Outputs Permit Live Insertion or Removal of Transceiver Driver Maintains High Impedance in Three-State or with the Power Off Up to 32 Transceivers on the Bus 50ns Typical Driver Propagation Delays with 10ns Skew Pin Compatible with the LTC485 Available in 8-Lead DIP and SO Packages

Ultra-Low Power RS485 Transceiver with Shutdown Features: Low Power: ICC = 120µA Max with Driver Disabled Drivers/Receivers Have ±10kV ESD Protection 1µA Quiescent Current in Shutdown Mode High Speed: Up to 2.5Mbits/s Data Rate ICC = 500µA Max with Driver Enabled, No Load Single 5V Supply -7V to 12V Common-Mode Range Permits ±7V Ground Difference Between Devices on the Data Line Thermal Shutdown Protection Power Up/Down Glitch-Free Driver Outputs Permit Live Insertion or Removal of Transceiver Driver Maintains High Impedance in Three-State or with the Power Off Up to 32 Transceivers on the Bus 30ns Typical Driver Propagation Delays with 5ns Skew Pin Compatible with the LTC485

Ultra-Low Power RS485 Transceiver with Shutdown Features: Low Power: ICC = 120µA Max with Driver Disabled Drivers/Receivers Have ±10kV ESD Protection 1µA Quiescent Current in Shutdown Mode High Speed: Up to 2.5Mbits/s Data Rate ICC = 500µA Max with Driver Enabled, No Load Single 5V Supply -7V to 12V Common-Mode Range Permits ±7V Ground Difference Between Devices on the Data Line Thermal Shutdown Protection Power Up/Down Glitch-Free Driver Outputs Permit Live Insertion or Removal of Transceiver Driver Maintains High Impedance in Three-State or with the Power Off Up to 32 Transceivers on the Bus 30ns Typical Driver Propagation Delays with 5ns Skew Pin Compatible with the LTC485

Low Power RS485 Transceiver with Carrier Detect and Receiver Fail-Safe Features: No Damage or Latchup to ±15kV (Human Body Model), IEC1000-4-2 Level 4 (±8kV) Contact and Level 3 (±8kV) Air Discharge Active Low Carrier Detect Output Guaranteed High Receiver Output State for Floating, Shorted or Terminated Inputs with No Signal Present Drives Low Cost Residential Telephone Wires Low Power: ICC = 700µA Max with Driver Disabled ICC = 900µA Max in Driver Mode Without Load 20µA Max Quiescent Current in Shutdown Mode Single 5V Supply –7V to 12V Common Mode Range Permits ±7V Ground Difference Between Devices on the Data Line Maximum Data Rate of 4Mbps Power Up/Down Glitch-Free Driver Outputs Up to 32 Transceivers on the Bus Available in 8-Lead MSOP, PDIP and SO Packages

Low Power RS485 Transceiver with Carrier Detect and Receiver Fail-Safe Features: No Damage or Latchup to ±15kV (Human Body Model), IEC1000-4-2 Level 4 (±8kV) Contact and Level 3 (±8kV) Air Discharge Active Low Carrier Detect Output Guaranteed High Receiver Output State for Floating, Shorted or Terminated Inputs with No Signal Present Drives Low Cost Residential Telephone Wires Low Power: ICC = 700µA Max with Driver Disabled ICC = 900µA Max in Driver Mode Without Load 20µA Max Quiescent Current in Shutdown Mode Single 5V Supply –7V to 12V Common Mode Range Permits ±7V Ground Difference Between Devices on the Data Line Maximum Data Rate of 4Mbps Power Up/Down Glitch-Free Driver Outputs Up to 32 Transceivers on the Bus Available in 8-Lead MSOP, PDIP and SO Packages

Low Power RS485 Transceiver with Carrier Detect and Receiver Fail-Safe Features: No Damage or Latchup to ±15kV (Human Body Model), IEC1000-4-2 Level 4 (±8kV) Contact and Level 3 (±8kV) Air Discharge Active Low Carrier Detect Output Guaranteed High Receiver Output State for Floating, Shorted or Terminated Inputs with No Signal Present Drives Low Cost Residential Telephone Wires Low Power: ICC = 700µA Max with Driver Disabled ICC = 900µA Max in Driver Mode Without Load 20µA Max Quiescent Current in Shutdown Mode Single 5V Supply –7V to 12V Common Mode Range Permits ±7V Ground Difference Between Devices on the Data Line Maximum Data Rate of 4Mbps Power Up/Down Glitch-Free Driver Outputs Up to 32 Transceivers on the Bus Available in 8-Lead MSOP, PDIP and SO Packages

Low Power RS485 Transceiver with Receiver Fail-Safe Features:No Damage or Latchup to ±15kV ESD (Human Body Model), IEC-1000-4-2 Level 4 Contact (±8kV) and Level 3 (±8kV) Air Gap SpecificationsGuaranteed High Receiver Output State for Floating, Shorted or Terminated Inputs with No Signal PresentDrives Low Cost Residential Telephone WiresLow Power: ICC = 700μA Max with Driver DisabledICC = 900μA Max for Driver Enable with No Load20μA Max Quiescent Current in Shutdown ModeSingle 5V Supply-7V to 12V Common Mode Range Permits ±7V Ground Difference Between Devices on the Data LinePower Up/Down Glitch-Free Driver OutputsUp to 32 Transceivers on the BusPin Compatible with the LTC485Available in 8-Lead MSOP, PDIP and SO Packages

Low Power RS485 Transceiver with Receiver Fail-Safe Features:No Damage or Latchup to ±15kV ESD (Human Body Model), IEC-1000-4-2 Level 4 Contact (±8kV) and Level 3 (±8kV) Air Gap SpecificationsGuaranteed High Receiver Output State for Floating, Shorted or Terminated Inputs with No Signal PresentDrives Low Cost Residential Telephone WiresLow Power: ICC = 700μA Max with Driver DisabledICC = 900μA Max for Driver Enable with No Load20μA Max Quiescent Current in Shutdown ModeSingle 5V Supply-7V to 12V Common Mode Range Permits ±7V Ground Difference Between Devices on the Data LinePower Up/Down Glitch-Free Driver OutputsUp to 32 Transceivers on the BusPin Compatible with the LTC485Available in 8-Lead MSOP, PDIP and SO Packages

Low Power RS485 Transceiver with Receiver Fail-Safe Features:No Damage or Latchup to ±15kV ESD (Human Body Model), IEC-1000-4-2 Level 4 Contact (±8kV) and Level 3 (±8kV) Air Gap SpecificationsGuaranteed High Receiver Output State for Floating, Shorted or Terminated Inputs with No Signal PresentDrives Low Cost Residential Telephone WiresLow Power: ICC = 700μA Max with Driver DisabledICC = 900μA Max for Driver Enable with No Load20μA Max Quiescent Current in Shutdown ModeSingle 5V Supply-7V to 12V Common Mode Range Permits ±7V Ground Difference Between Devices on the Data LinePower Up/Down Glitch-Free Driver OutputsUp to 32 Transceivers on the BusPin Compatible with the LTC485Available in 8-Lead MSOP, PDIP and SO Packages

Low Power RS485 Transceiver with Receiver Fail-Safe Features:No Damage or Latchup to ±15kV ESD (Human Body Model), IEC-1000-4-2 Level 4 Contact (±8kV) and Level 3 (±8kV) Air Gap SpecificationsGuaranteed High Receiver Output State for Floating, Shorted or Terminated Inputs with No Signal PresentDrives Low Cost Residential Telephone WiresLow Power: ICC = 700μA Max with Driver DisabledICC = 900μA Max for Driver Enable with No Load20μA Max Quiescent Current in Shutdown ModeSingle 5V Supply-7V to 12V Common Mode Range Permits ±7V Ground Difference Between Devices on the Data LinePower Up/Down Glitch-Free Driver OutputsUp to 32 Transceivers on the BusPin Compatible with the LTC485Available in 8-Lead MSOP, PDIP and SO Packages

Single Cell to 3.3V Regulated Charge Pump DC/DC Converter Features: Input Voltage Range: 0.9V to 1.8V 0.9V Guaranteed Start-Up Voltage Regulated Output Voltage: 3.3V ±4% Output Current: 10mA (VIN ≥ 1V) No Inductors Shutdown Disconnects Load from VIN Low Operating Current: 40µA Low Shutdown Current: 5µA Short-Circuit and Overtemperature Protected Application Circuit Fits in <0.125in2 PCB Area Available in 8-Pin MSOP and SO Packages

High Efficiency Inductorless Step-Down DC/DC Converter Features: Input Voltage Range: 2.4V to 6V Fixed Output Voltages: 1.8V ±4%, 2V ±4% Output Current: Up to 100mA No Inductors Typical Efficiency 25% Higher than LDOs Low Operating Current: 25µA Low Shutdown Current: 5µA 600kHz Switching Frequency Shutdown Disconnects Load from VIN Soft-Start Limits Inrush Current at Turn-On Short-Circuit and Overtemperature Protected Available in 8-Pin MSOP and SO Packages

500mA Low Voltage Step-Down Synchronous Switching Regulator Features: 500mA Output Current at 3.3V Output Up to 92% Peak Efficiency Internal Reference Trimmed to 1% Output Can Source or Sink Current Requires as Few as Four External Components Input Voltage Range: 4V to 10V Adjustable Current Limit Small SO-8 Package 200kHz Switching Frequency Can be Synchronized Up to 500kHz

Step-Up/Step-Down Switched Capacitor DC/DC Converters with Low-Battery Comparator Features: 3.3V or 5V Output Voltages 2V to 10V Input Voltage Range Up to 50mA Output Current Only Three External Capacitors Required Soft Start Limits Inrush Current at Turn-On Low Operating Current: 60µA Low Shutdown Current: 10µA Shutdown Disconnects Load from VIN Short-Circuit and Overtemperature Protected 650kHz Switching Frequency Low-Battery Comparator Active in Shutdown Available in SO-8 Package

Step-Up/Step-Down Switched Capacitor DC/DC Converters with RESET Features: Adjustable/Selectable 3V, 3.3V or 5V Output Voltages 2V to 10V Input Voltage Range Up to 50mA Output Current Only Three External Capacitors Required Soft Start Limits Inrush Current at Turn-On Low Operating Current: 60µA Very Low Shutdown Current: < 1µA Shutdown Disconnects Load from VIN VOUT Programmable to 3V/5V or 3.3V/5V Short-Circuit and Overtemperature Protected 650kHz Switching Frequency Open-Drain Power-On Reset Output Available in SO-8 Package