isoSPI Isolated Communications Interface Features: AEC-Q100 Qualified for Automotive Applications 1Mbps Isolated SPI Data Communications Simple Galvanic Isolation Using Standard Transformers Bidirectional Interface Over a Single Twisted Pair Supports Cable Lengths Up to 100 Meters Very Low EMI Susceptibility and Emissions Configurable for High Noise Immunity or Low Power Engineered for ISO26262 Compliant Systems Requires No Software Changes in Most SPI Systems Ultralow, 2µA Idle Current Automatic Wake-Up Detection Operating Temperature Range: –40°C to 125°C 2.7V to 5.5V Power Supply Interfaces to All Logic from 1.7V to 5.5V Available in 16-Lead QFN and MSOP Packages

Low Power, 1kHz to 20MHz Resistor Set SOT-23 Oscillator Features: One External Resistor Sets the Frequency 1kHz to 20MHz Frequency Range 500µA Typical Supply Current, VS = 3V, 3MHz Frequency Error ≤1.5% Max, 5kHz to 10MHz (TA = 25°C) Frequency Error ≤ 2% Max, 5kHz to 10MHz (TA = 0°C to 70°C) ±40ppm/°C Temperature Stability 0.04%/V Supply Stability 50% ±1% Duty Cycle 1kHz to 2MHz 50% ±5% Duty Cycle 2MHz to 10MHz Fast Start-Up Time: 50µs to 1.5ms 100Ω CMOS Output Driver Operates from a Single 2.7V to 5.5V Supply Low Profile (1mm) ThinSOT™ Package

Multiphase Oscillator with Spread Spectrum Frequency Modulation Features: 2-, 3- or 4-Phase Outputs Optional Spread Spectrum Frequency Modulation for Improved EMC Performance 5kHz to 20MHz Frequency Range One External Resistor Sets the Frequency One External Resistor Sets Percent Frequency Spreading 400µA Typical Supply Current, VS = 3V, 1MHz Frequency Error < 1.5% Max, 5kHz to 10MHz (TA = 25°C) Frequency Error < 2% Max, 5kHz to 10MHz (TA = 0°C to 70°C) ±40ppm/°C Temperature Stability Fast Start-Up Time: 50µs to 1.5ms 100 CMOS Output Driver Operates from a Single 2.7V to 5.5V Supply Available in 10-Lead MS Package

Multiphase Oscillator with Spread Spectrum Frequency Modulation Features: 2-, 3- or 4-Phase Outputs Optional Spread Spectrum Frequency Modulation for Improved EMC Performance 5kHz to 20MHz Frequency Range One External Resistor Sets the Frequency One External Resistor Sets Percent Frequency Spreading 400µA Typical Supply Current, VS = 3V, 1MHz Frequency Error < 1.5% Max, 5kHz to 10MHz (TA = 25°C) Frequency Error < 2% Max, 5kHz to 10MHz (TA = 0°C to 70°C) ±40ppm/°C Temperature Stability Fast Start-Up Time: 50µs to 1.5ms 100 CMOS Output Driver Operates from a Single 2.7V to 5.5V Supply Available in 10-Lead MS Package

1kHz - 68MHz Serial Port Programmable Oscillator Features: 1kHz to 68MHz Square Wave Output 0.5% (Typ) Initial Frequency Accuracy Frequency Error <1.1% Over All Settings 10ppm/°C Typical Frequency Drift Over Temperature 0.1% Resolution 1.7mA Typical Supply Current (f < 1MHz, VS = 2.7V) 2.7V to 5.5V Single Supply Operation Jitter <0.4% Typical 1kHz to 8MHz Easy to Use SPI (LTC6903) or I2C (LTC6904) Serial Interface Output Enable Pin –55°C to 125°C Operation MS8 Package

1kHz - 68MHz Serial Port Programmable Oscillator Features: 1kHz to 68MHz Square Wave Output 0.5% (Typ) Initial Frequency Accuracy Frequency Error <1.1% Over All Settings 10ppm/°C Typical Frequency Drift Over Temperature 0.1% Resolution 1.7mA Typical Supply Current (f < 1MHz, VS = 2.7V) 2.7V to 5.5V Single Supply Operation Jitter <0.4% Typical 1kHz to 8MHz Easy to Use SPI (LTC6903) or I2C (LTC6904) Serial Interface Output Enable Pin –55°C to 125°C Operation MS8 Package

Fixed Frequency SOT-23 Oscillator Features: No External Components to Set Frequency Frequency Error ±0.5% Typical Fast Start-Up Time: 100µs Typical ±20ppm/°C Temperature Stability Includes Output Enable Includes Divide by 1, 2 or 4 Rise Time: 0.5ns, CL = 5pF Timing Jitter: <0.8% Typical Duty Cycle: 50% ±2.5% IS = 8mA Typical (fOSC = 100MHz, CL = 5pF) CMOS Output Drives 600Ω Load Single Supply 2.7V to 5.5V Low Profile (1mm) ThinSOT™ Package

Fixed Frequency SOT-23 Oscillator Features: No External Components to Set Frequency Frequency Error ±0.5% Typical Fast Start-Up Time: 100µs Typical ±20ppm/°C Temperature Stability Includes Output Enable Includes Divide by 1, 2 or 4 Rise Time: 0.5ns, CL = 5pF Timing Jitter: <0.8% Typical Duty Cycle: 50% ±2.5% IS = 8mA Typical (fOSC = 100MHz, CL = 5pF) CMOS Output Drives 600Ω Load Single Supply 2.7V to 5.5V Low Profile (1mm) ThinSOT™ Package

Fixed Frequency SOT-23 Oscillator Features: No External Components to Set Frequency Frequency Error ±0.5% Typical Fast Start-Up Time: 100µs Typical ±20ppm/°C Temperature Stability Includes Output Enable Includes Divide by 1, 2 or 4 Rise Time: 0.5ns, CL = 5pF Timing Jitter: <0.8% Typical Duty Cycle: 50% ±2.5% IS = 8mA Typical (fOSC = 100MHz, CL = 5pF) CMOS Output Drives 600Ω Load Single Supply 2.7V to 5.5V Low Profile (1mm) ThinSOT™ Package

17MHz to 170MHz Resistor Set SOT-23 Oscillator Features: One External Resistor Sets the Frequency Fast Start-Up Time: 100µs Typical Frequency Range: 17MHz to 170MHz Frequency Error ±0.5% Typ 17MHz to 170MHz (TA = 0°C to 70°C, Over All Settings) ±20ppm/°C Temperature Stability Rise Time: 0.5ns, CL = 5pF Timing Jitter: 7.2ps RMS at 170MHz 50% ±2.5% Duty Cycle 6mA Typical Supply Current, fOSC = 100MHz CMOS Output Drives 500 Load (VS = 3V) Operates from a Single 2.7V to 5.5V Supply Low Profile (1mm) ThinSOT™ Package

Micropower, 40kHz to 4MHz Resistor Set Oscillator in SOT-23 Features: Supply Current: 36µA at 400kHz 1% Frequency Accuracy (from 0°C to 70°C) Frequency Range: 40kHz to 4MHz One Resistor Sets the Oscillator Frequency –40°C to 125°C Operating Temperature Range Start-Up Time Under 200µs at 4MHz First Cycle After Power-Up is Accurate 150 CMOS Output Driver Low Profile (1mm) SOT-23 (ThinSOTTM) Package

Microprocessor Supervisory Circuits Features: Guaranteed Reset Assertion at VCC = 1V 1.5mA Maximum Supply Current Fast (35ns Max) Onboard Gating of RAM Chip Enable Signals SO-8 and S16 Packaging 4.65V Precision Voltage Monitor Power OK/Reset Time Delay: 50ms, 200ms or Adjustable Minimum External Component Count 1μA Maximum Standby Current Voltage Monitor for Power-Fail or Low Battery Warning Thermal Limiting Performance Specified Over Temperature Superior Upgrade for MAX690 Family

Microprocessor Supervisory Circuits Features: Guaranteed Reset Assertion at VCC = 1V 1.5mA Maximum Supply Current Fast (35ns Max) Onboard Gating of RAM Chip Enable Signals SO-8 and S16 Packaging 4.65V Precision Voltage Monitor Power OK/Reset Time Delay: 50ms, 200ms or Adjustable Minimum External Component Count 1μA Maximum Standby Current Voltage Monitor for Power-Fail or Low Battery Warning Thermal Limiting Performance Specified Over Temperature Superior Upgrade for MAX690 Family

Digitally Controlled Programmable Gain Amplifiers in SOT-23 Features: 3-Bit Digital Gain Control in Three Gain-Code Options Rail-to-Rail Input Range Rail-to-Rail Output Swing Single or Dual Supply: 2.7V to 10.5V Total 11MHz Gain Bandwidth Product Input Noise Down to 8nV/√Hz System Dynamic Range to 120dB Input Offset Voltage: 1.5mV 8-Pin Low Profile (1mm) SOT-23 (ThinSOT™) Package

Digitally Controlled Programmable Gain Amplifiers in SOT-23 Features: 3-Bit Digital Gain Control in Three Gain-Code Options Rail-to-Rail Input Range Rail-to-Rail Output Swing Single or Dual Supply: 2.7V to 10.5V Total 11MHz Gain Bandwidth Product Input Noise Down to 8nV/√Hz System Dynamic Range to 120dB Input Offset Voltage: 1.5mV 8-Pin Low Profile (1mm) SOT-23 (ThinSOT™) Package

Dual Programmable Gain Amplifiers with Serial Digital Interface Features: 2 Channels with Independent Gain Control LTC6912-1: (0, 1, 2, 5, 10, 20, 50, and 100V/V) LTC6912-2: (0, 1, 2, 4, 8, 16, 32, and 64V/V) Offset Voltage = 2mV Max (–40°C to 85°C) Channel-to-Channel Gain Matching of 0.1dB Max 3-Wire SPITM Interface Extended Gain-Bandwidth at High Gains Wired-OR Outputs Possible (2:1 Analog MUX Function) Low Power Hardware Shutdown (GN-16 Only, 2µA Max at 2.7V) Rail-to-Rail Input Range Rail-to-Rail Output Swing Single or Dual Supply: 2.7V to 10.5V Total Input Noise: 12.6nV/√Hz Total System Dynamic Range to 115dB 16-Pin GN (SSOP) or 12-Pin DFN Package Options

Zero Drift, Precision Instrumentation Amplifier with Digitally Programmable Gain Features: 14 Levels of Programmable Gain 125dB CMRR Independent of Gain Gain Accuracy 0.1% (Typ) Maximum Offset Voltage of 10µV Maximum Offset Voltage Drift: 50nV/°C Rail-to-Rail Input and Output Parallel or Serial (SPI) Interface for Gain Setting Supply Operation: 2.7V to ±5.5V Typical Noise: 2.5µVP-P (0.01Hz to 10Hz) 16-Lead SSOP and 12-Lead DFN Packages

Microprocessor Supervisory Circuits Features: Guaranteed Reset Assertion at VCC = 1V 1.5mA Maximum Supply Current Fast (35ns Maximum) Onboard Gating of RAM Chip Enable Signals 4.40V Precision Voltage Monitor Power OK/Reset Time Delay: 200ms or Adjustable Minimum External Component Count 1μA Maximum Standby Current Voltage Monitor for Power-Fail or Low Battery Warning Thermal Limiting Performance Specified Over Temperature Superior Upgrade for MAX690 Family SO8 and SO16 Packaging

Ultralow Jitter Multi-Output Clock Synthesizer with Integrated VCO Features: Low Noise Integer-N PLL with Integrated VCO Output Jitter: 90fs RMS (12kHz to 20MHz) 115fs RMS (ADC SNR Method) Noise Floor = –165dBc/Hz at 250MHz EZSync™, ParallelSync™ Multichip Synchronization SYSREF Generation for JESD204B/JESD204C, Subclass 1 Output Frequency Range: 1.95MHz to 2.5GHz (LTC6951) 2.1MHz to 2.7GHz (LTC6951-1) –229dBc/Hz Normalized In-Band Phase Noise Floor –277dBc/Hz Normalized In-Band 1/f Noise Five Independent, Low Noise Outputs Reference Input Frequency up to 425MHz LTC6951Wizard™ Software Design Tool Support –40°C to 105°C Operating Junction Temperature Range

Low Phase Noise, Triple Output Clock Distribution Divider/Driver Features: Low Noise Clock Distribution: Suitable for High Speed/High Resolution ADC Clocking Additive Jitter < 20fsRMS (12kHz to 20MHz) Additive Jitter < 85fsRMS (10Hz to Nyquist) 1.8GHz Maximum Input Frequency (LTC6954-1 When DELAY = 0) 1.4GHz Maximum Input Frequency (LTC6954-1 When DELAY > 0, LTC6954-2, -3, -4) EZSync™ Clock Synchronization Compatible Three Independent, Low Noise Outputs Four Output Combinations Available Three Independent Programmable Dividers Covering All Integers From 1 to 63 Three Independent Programmable Delays Covering All Integers From 0 to 63 –40°C to 105°C Junction Temperature Range