Analog Devices

The LTC2755 is a family of quad 12-, 14-, and 16-bit multiplying parallel-input, current-output DACs. These DACs operate from a single 2.7V to 5.5V supply and are all guaranteed monotonic over temperature. The LTC2755A-16 provides 16-bit performance (±1LSB INL and DNL) over temperature without any adjustments. These SoftSpan™DACs offer six output ranges—two unipolar and four bipolar—that can be programmed through the parallel interface, or pinstrapped for operation in a single range.The LTC2755 DACs use a bidirectional input/output parallel interface that allows readback of any internal register, including the DAC output span settings. A power-on reset circuit resets the DAC outputs to 0V when power is initially applied. A logic low on theCLRpin asynchronously clears the DACs to 0V in any output range.The parts are specified over commercial and industrial temperature ranges.ApplicationsHigh Resolution Offset and Gain AdjustmentProcess Control and Industrial AutomationAutomatic Test EquipmentData Acquisition Systems

The LTC2756 is an 18-bit multiplying serial-input, current-output digital-to-analog converter. LTC2756A provides full 18-bit performance—INL and DNL of ±1LSB maximum—over temperature without any adjustments. 18-bit monotonicity is guaranteed in all performance grades. This SoftSpan™DAC operates from a single 3V to 5V supply and offers six output ranges (up to ±10V) that can be programmed through the 3-wire SPI serial interface or pin-strapped for operation in a single range.Any on-chip register (including DAC output-range settings) can be read for verification in just one instruction cycle; and if you change register content, the altered register will be automatically read back during the next instruction cycle.Voltage-controlled offset and gain adjustments are also provided; and the power-on reset circuit andCLRpin both reset the DAC output to 0V regardless of output range.ApplicationsInstrumentationMedical DevicesAutomatic Test EquipmentProcess Control and Industrial Automation

The LTC2757 is an 18-bit multiplying parallel-input, current-output digital-to-analog converter that provides full 18-bit performance—INL and DNL of ±1LSB maximum—over temperature without any adjustments. 18-bit monotonicity is guaranteed in all performance grades. This SoftSpan™DAC operates from a single 3V to 5V supply and offers six output ranges (up to ±10V) that can be programmed through the parallel interface or pin-strapped for operation in a single range.In addition to its precision DC specifications, the LTC2757 also offers excellent AC specifications, including 2.1μs full-scale settling to 1LSB and 1.4nV•s glitch impulse.The LTC2757 uses a bidirectional input/output parallel interface that allows readback of any on-chip register, including DAC output-range settings; and aCLRpin and power-on reset circuit that each reset the DAC output to 0V regardless of output range.ApplicationsInstrumentationMedical DevicesAutomatic Test EquipmentProcess Control and Industrial Automation

The LTC2758 is a dual 18-bit multiplying serial-input, current-output digital-to-analog converter. LTC2758A provides full 18-bit performance (INL and DNL of ±1LSB maximum) over temperature without any adjustments. 18-bit monotonicity is guaranteed in all performance grades. This SoftSpan™DAC operates from a single 3V to 5V supply and offers six output ranges (up to ±10V) that can be programmed through the 3-wire SPI serial interface or pin-strapped for operation in a single range.Any on-chip register (including DAC output-range settings) can be read for verification in just one instruction cycle; and if you change register content, the altered register will be automatically read back during the next instruction cycle.Voltage-controlled offset and gain adjustments are also provided; and the power-on reset circuit andCLRpin both reset the DAC outputs to 0V regardless of output range.ApplicationsInstrumentationMedical DevicesAutomatic Test EquipmentProcess Control and Industrial Automation

The LTC2801/LTC2802/LTC2803/LTC2804 are single and dual RS-232 transceivers in narrow SSOP and chip-scale DFN packages. All operate over a supply range of 1.8V to 5.5V, which permits operation directly from two alkaline, NiCd or NiMH cells. An integrated DC-to-DC converter generates power supplies for driving RS-232 levels. A logic supply pin allows easy interfacing with different logic levels independent of the DC-DC supply.These parts are compatible with the TIA/EIA-232-F standard. Driver outputs are protected from overload and can be shorted to ground or up to ±15V without damage. To extend battery life, receivers can be kept active, operating at reduced speed, with only 15μA current. In shutdown mode, current is further reduced to 1μA.Part NumberDriver & ReceiversMax Data RateModesPackageLTC28011 + 10.25MbpsSD, RA, DD, AODFN-12LTC28021 + 11MbpsSD, RA, DD, AODFN - 12LTC28032 + 20.25MbpsSD, RA, DD, AODFN-16LTC2803-12 + 20.25MbpsSD, AOSSOP-16LTC28042 + 21MbpsSD, RA, DD, AODFN-16LTC2804-12 + 21MbpsSD, AOSSOP-16ApplicationsBattery-Powered SystemsComputers and Consumer ElectronicsDiagnostic Ports

The LTC2801/LTC2802/LTC2803/LTC2804 are single and dual RS-232 transceivers in narrow SSOP and chip-scale DFN packages. All operate over a supply range of 1.8V to 5.5V, which permits operation directly from two alkaline, NiCd or NiMH cells. An integrated DC-to-DC converter generates power supplies for driving RS-232 levels. A logic supply pin allows easy interfacing with different logic levels independent of the DC-DC supply.These parts are compatible with the TIA/EIA-232-F standard. Driver outputs are protected from overload and can be shorted to ground or up to ±15V without damage. To extend battery life, receivers can be kept active, operating at reduced speed, with only 15μA current. In shutdown mode, current is further reduced to 1μA.Part NumberDriver & ReceiversMax Data RateModesPackageLTC28011 + 10.25MbpsSD, RA, DD, AODFN-12LTC28021 + 11MbpsSD, RA, DD, AODFN - 12LTC28032 + 20.25MbpsSD, RA, DD, AODFN-16LTC2803-12 + 20.25MbpsSD, AOSSOP-16LTC28042 + 21MbpsSD, RA, DD, AODFN-16LTC2804-12 + 21MbpsSD, AOSSOP-16ApplicationsBattery-Powered SystemsComputers and Consumer ElectronicsDiagnostic Ports

The LTC2801/LTC2802/LTC2803/LTC2804 are single and dual RS-232 transceivers in narrow SSOP and chip-scale DFN packages. All operate over a supply range of 1.8V to 5.5V, which permits operation directly from two alkaline, NiCd or NiMH cells. An integrated DC-to-DC converter generates power supplies for driving RS-232 levels. A logic supply pin allows easy interfacing with different logic levels independent of the DC-DC supply.These parts are compatible with the TIA/EIA-232-F standard. Driver outputs are protected from overload and can be shorted to ground or up to ±15V without damage. To extend battery life, receivers can be kept active, operating at reduced speed, with only 15μA current. In shutdown mode, current is further reduced to 1μA.Part NumberDriver & ReceiversMax Data RateModesPackageLTC28011 + 10.25MbpsSD, RA, DD, AODFN-12LTC28021 + 11MbpsSD, RA, DD, AODFN - 12LTC28032 + 20.25MbpsSD, RA, DD, AODFN-16LTC2803-12 + 20.25MbpsSD, AOSSOP-16LTC28042 + 21MbpsSD, RA, DD, AODFN-16LTC2804-12 + 21MbpsSD, AOSSOP-16ApplicationsBattery-Powered SystemsComputers and Consumer ElectronicsDiagnostic Ports

The LTC2801/LTC2802/LTC2803/LTC2804 are single and dual RS-232 transceivers in narrow SSOP and chip-scale DFN packages. All operate over a supply range of 1.8V to 5.5V, which permits operation directly from two alkaline, NiCd or NiMH cells. An integrated DC-to-DC converter generates power supplies for driving RS-232 levels. A logic supply pin allows easy interfacing with different logic levels independent of the DC-DC supply.These parts are compatible with the TIA/EIA-232-F standard. Driver outputs are protected from overload and can be shorted to ground or up to ±15V without damage. To extend battery life, receivers can be kept active, operating at reduced speed, with only 15μA current. In shutdown mode, current is further reduced to 1μA.Part NumberDriver & ReceiversMax Data RateModesPackageLTC28011 + 10.25MbpsSD, RA, DD, AODFN-12LTC28021 + 11MbpsSD, RA, DD, AODFN - 12LTC28032 + 20.25MbpsSD, RA, DD, AODFN-16LTC2803-12 + 20.25MbpsSD, AOSSOP-16LTC28042 + 21MbpsSD, RA, DD, AODFN-16LTC2804-12 + 21MbpsSD, AOSSOP-16ApplicationsBattery-Powered SystemsComputers and Consumer ElectronicsDiagnostic Ports

The LTC2844 is a 4-driver/4-receiver multiprotocol transceiver. The LTC2844 and LTC2846 form the core of a complete software-selectable DTE or DCE interface port that supports the RS232, RS449, EIA530, EIA530-A, V.35, V.36 or X.21 protocols.The LTC2844 operates from a 3.3V supply and supplies provided by the LTC2846. The part is available in a 28-lead SSOP surface mount package.ApplicationsData NetworkingCSU and DSUData Routers

The LTC2845 is a 5-driver/5-receiver multiprotocol transceiver. The LTC2845 and LTC2846 form the core of a complete software-selectable DTE or DCE interface port that supports the RS232, RS449, EIA530, EIA530-A, V.35, V.36 or X.21 protocols.The LTC2845 operates from a 3.3V supply and supplies provided by the LTC2846. This part is available in a 36-lead SSOP and 38-lead (7mm x 5mm) QFN package. The LTC2845 and LTC2847 in QFN packages offer the smallest multiprotocol serial port available.ApplicationsData NetworkingCSU and DSUData Routers