Analog Devices

The LTC1647-1/LTC1647-2/LTC1647-3 are dual Hot Swap™controllers that permit a board to be safely inserted and removed from a live backplane.Using external N-channel MOSFETs, the board supply voltages can be ramped up at a programmable rate. A high side switch driver controls the MOSFET gates for supply voltages ranging from 2.7V to 16.5V. A programmable electronic circuit breaker protects against overloads and shorts. The ON pins are used to control board power or clear a fault.The LTC1647-1 is a dual Hot Swap controller with a common VCCpin, separate ON pins and is available in an SO-8 package. The LTC1647-2 is similar to the LTC1647-1 but combines a fault status flag with automatic retry at the ON pins and is also available in the SO-8 package. The LTC1647-3 has individual VCCpins, ON pins andFAULTstatus pins for each channel and is available in a 16-lead narrow SSOP package.ApplicationsHot Board InsertionElectronic Circuit BreakerPortable Computer Device BaysHot Plug Disk Drive

The LTC1650 is a deglitched rail-to-rail voltage output 16-bit digital-to-analog converter (DAC) available in a 16-pin narrow SO package. It has 16-bit monotonicity over temperature and includes a rail-to-rail output buffer amplifier and an easy to use three-wire cascadable serial interface. The LTC1650 operates with dual ±5V supplies.With REFLO = 0V and REFHI = VREF, the output will swing from 0V to VREFin unipolar mode or ±VREFin bipolar mode.The LTC1650 has excellent accuracy over its full operating temperature range along with very low power dissipation of 50mW with dual ±5V supplies. This, along with the small outline package, makes it the most flexible high resolution digital-to-analog converter available today.The LTC1650 has a fast settling time of 4µs to 16 bits and a low midscale glitch of under 2nV-s. This makes the LTC1650 ideal for waveform generation or other applications where output dynamic performance is important.ApplicationsIndustrial Process ControlPrecision Industrial EquipmentWaveform GenerationAutomatic Test EquipmentHigh Resolution Offset and Gain Adjustment

The LTC1654 is a dual, rail-to-rail voltage output, 14-bit digital-to-analog converter (DAC). It is available in a 16-lead narrow SSOP package, making it the smallest dual 14-bit DAC available. It includes output buffer amplifiers and a flexible serial interface.The LTC1654 has REFHI pins for each DAC that can be driven up to VCC. The output will swing from 0V to VCCin a gain of 1 configuration or VCC/2 in a gain of 1/2 configuration. It operates from a single 2.7V to 5.5V supply.The LTC1654 has two programmable speeds: a FAST and SLOW mode with ±1LSB settling times of 3µs or 8.5µs respectively and supply currents of 930µA and540µAin the two modes. The LTC1654 also has shutdown capability, power-on reset and a clear function to 0V.ApplicationsDigital CalibrationIndustrial Process ControlAutomatic Test EquipmentOffset/Gain AdjustmentMultiplying DAC

The LTC1655/LTC1655L are rail-to-rail voltage output, 16-bit digital-to-analog converters in an SO-8 package. They include an output buffer and a reference. The 3-wire serial interface is compatible with SPI/QSPI and MICROWIRE™ protocols. The CLK input has a Schmitt trigger that allows direct optocoupler interface.The LTC1655 has an on-board 2.048V reference that can be overdriven to a higher voltage. The output swings from 0V to 4.096V when using the internal reference. The typical power dissipation is 3.0mW on a single 5V supply.The LTC1655L has an on-board 1.25V reference that can be overdriven to a higher voltage. The output swings from 0V to 2.5V when using the internal reference. The typical power dissipation is 1.8mW on a single 3V supply.The LTC1655/LTC1655L are pin compatible with the 12-bit VOUTDAC family, allowing an easy upgrade path. They are the only buffered 16-bit DACs in an SO-8 package and they include an on-board reference for standalone performance.ApplicationsDigital CalibrationIndustrial Process ControlAutomatic Test EquipmentCellular Telephones

The LTC1658 is a single supply, rail-to-rail voltage output, 14-bit digital-to-analog converter (DAC) in an 8-lead MSOP package. It includes an output buffer amplifier and an easy-to-use 3-wire cascadable serial interface.The LTC1658 output swings from 0V to VREF. The REF pin can be tied to VCCfor rail-to-rail output swing. The LTC1658 operates from a single 2.7V to 5.5V supply. The typical power supply current is 270µA.The low power supply current makes the LTC1658 ideal for battery-powered applications. The space saving MSOP provides the smallest 14-bit DAC system available.ApplicationsDigital CalibrationIndustrial Process ControlAutomatic Test EquipmentCellular Telephones

The LTC1659 is a single supply, rail-to-rail voltage output, 12-bit digital-to-analog converter (DAC) in an MSOP package. It includes a rail-to-rail output buffer amplifier and an easy-to-use 3-wire cascadable serial interface.The LTC1659 output swings from 0V to REF. The REF input can be tied to VCCwhich can range from 2.7V to 5.5V. This allows a rail-to-rail output swing from 0V to VCC. The LTC1659 draws only 250µA from a 5V supply.Its guaranteed ±0.5LSB maximum DNL makes the LTC1659 excel in calibration, control and trim/adjust applications. The low power supply current and the small MSOP package make the LTC1659 ideal for battery-powered applications.ApplicationsDigital CalibrationIndustrial Process ControlAutomatic Test EquipmentCellular Telephones

The 8-bit LTC1665 and 10-bit LTC1660 integrate eight accurate, serially addressable digital-to-analog converters (DACs) in tiny 16-pin narrow SSOP packages. Each buffered DAC draws just 56µA total supply current, yet is capable of supplying DC output currents in excess of 5mA and reliably driving capacitive loads to 1000pF. Sleep mode further reduces total supply current to 1µA.Proprietary, inherently monotonic voltage interpolation architecture provides excellent linearity while allowing for an exceptionally small external form factor.Ultralow supply current, power-saving Sleep mode and extremely compact size make the LTC1665 and LTC1660 ideal for battery-powered applications, while their ease of use, high performance and wide supply range make them excellent choices as general purpose converters.ApplicationsMobile CommunicationsRemote Industrial DevicesAutomatic Calibration for ManufacturingPortable Battery-Powered InstrumentsTrim/Adjust Applications

The LTC1661 integrates two accurate, serially addressable, 10-bit digital-to-analog converters (DACs) in a single tiny MS8 package. Each buffered DAC draws just 60μA total supply current, yet is capable of supplying DC output currents in excess of 5mA and reliably driving capacitive loads up to 1000pF. Sleep mode further reduces total supply current to a negligible 1μA.Proprietary, inherently monotonic voltage interpolation architecture provides excellent linearity while allowing for an exceptionally small external form factor. The double-buffered input logic provides simultaneous update capability and can be used to write to either DAC without interrupting sleep mode.Ultralow supply current, power-saving sleep mode and extremely compact size make the LTC1661 ideal for battery-powered applications, while its straightforward usability, high performance and wide supply range make it an excellent choice as a general purpose converter.For additional outputs and even greater board density, please refer to the LTC1660 micropower octal DAC for 10‑bit applications. For 8-bit applications, please consult the LTC1665 micropower octal DAC.ApplicationsMobile CommunicationsDigitally Controlled Amplifiers and AttenuatorsPortable Battery-Powered InstrumentsAutomatic Calibration for ManufacturingRemote Industrial Devices

The LTC1662 is an ultralow power, fully buffered voltage output, dual 10-bit digital-to-analog converter (DAC). Each DAC channel draws just 1.7µA (typ) total supply-plus-reference operating current, yet is capable of supplying DC output currents in excess of 1mA and reliably driving capacitive loads of up to 1000pF. A programmable Sleep mode further reduces total operating current to 0.05µA.Linear Technology’s proprietary, inherently monotonic architecture provides excellent linearity and an exceptionally small external form factor. The double-buffered input logic provides simultaneous update capability and can be used to write to the DACs without interrupting Sleep mode.With its tiny operating current and exceptionally small size, the LTC1662 is ideal for use in the most power-constrained products. For most designs, there is no perceptible impact on the power budget; the LTC1662 draws many times less current than even a trimpot, while providing buffered, low impedance (0.5Ω typical, VCC= 5V) rail-to-rail outputs.The LTC1662 is pin and software compatible with the LTC1661 dual, 60µA 10-bit DAC. It is available in 8-pin MSOP and PDIP packages and is specified over the industrial temperature range.ApplicationsMobile CommunicationsPortable Battery-Powered InstrumentsRemote or Inaccessible AdjustmentsDigitally Controlled Amplifiers and AttenuatorsFactory or Field Calibration