Analog Devices

The LTC488 and LTC489 are low power differential bus/line receivers designed for multipoint data transmission standard RS485 applications with extended common mode range (12V to –7V). They also meet the requirements of RS422.The CMOS design offers significant power savings over its bipolar counterpart without sacrificing ruggedness against overload or ESD damage.The receiver features three-state outputs, with the receiver output maintaining high impedance over the entire common mode range.The receiver has a fail-safe feature which guarantees a high output state when the inputs are left open.Both AC and DC specifications are guaranteed 4.75V to 5.25V supply voltage range.ApplicationsLow Power RS485/RS422 ReceiversLevel Translator

The LTC488 and LTC489 are low power differential bus/line receivers designed for multipoint data transmission standard RS485 applications with extended common mode range (12V to –7V). They also meet the requirements of RS422.The CMOS design offers significant power savings over its bipolar counterpart without sacrificing ruggedness against overload or ESD damage.The receiver features three-state outputs, with the receiver output maintaining high impedance over the entire common mode range.The receiver has a fail-safe feature which guarantees a high output state when the inputs are left open.Both AC and DC specifications are guaranteed 4.75V to 5.25V supply voltage range.ApplicationsLow Power RS485/RS422 ReceiversLevel Translator

The LTC490 is a low power differential bus/line transceiver designed for multipoint data transmission standard RS485 applications with extended common mode range (12V to –7V). It also meets the requirements of RS422.The CMOS design offers significant power savings over its bipolar counterpart without sacrificing ruggedness against overload or ESD damage.Excessive power dissipation caused by bus contention or faults is prevented by a thermal shutdown circuit which forces the driver outputs into a high impedance state. The receiver has a fail safe feature which guarantees a high output state when the inputs are left open.Both AC and DC specifications are guaranteed from 0°C to 70°C and 4.75V to 5.25V supply voltage range.ApplicationsLow Power RS485/RS422 TransceiverLevel Translator

The LTC491 is a low power differential bus/line transceiver designed for multipoint data transmission standard RS485 applications with extended common mode range (12V to –7V). It also meets the requirements of RS422.The CMOS design offers significant power savings over its bipolar counterpart without sacrificing ruggedness against overload or ESD damage.The driver and receiver feature three-state outputs, with the driver outputs maintaining high impedance over the entire common mode range. Excessive power dissipation caused by bus contention or faults is prevented by a thermal shutdown circuit which forces the driver outputs into a high impedance state.The receiver has a fail safe feature which guarantees a high output state when the inputs are left open.Both AC and DC specifications are guaranteed from 0°C to 70°C and 4.75V to 5.25V supply voltage range.ApplicationsLow Power RS485/RS422 TransceiverLevel Translator

The LTC5505-X is an RF power detector for RF applications operating in the 300MHz to 3.5GHz range. A temperature compensated Schottky diode peak detector and buffer amplifier are combined in a small 5-pin ThinSOT package. The supply voltage range is optimized for operation from a single lithium-ion cell or 3xNiMH.The RF input voltage is peak detected using an on-chip Schottky diode. The detected voltage is buffered and supplied to the VOUTpin. A power saving shutdown mode reduces supply current to less than 2µA.The LTC5505-1 operates with input power levels from –28dBm to 18dBm. The LTC5505-2 operates with input power levels from –32dBm to 12dBm.ApplicationsMultimode Mobile Phone ProductsPCS DevicesWireless Data ModemsWireless and Cable InfrastructureRF Power AlarmEnvelope Detector

The LTC5508 is an RF power detector for RF applications operating in the 300MHz to 7GHz range. A temperature compensated Schottky diode peak detector and buffer amplifier are combined in a small SC70 package. The supply voltage range is optimized for operation from a single lithium-ion cell or 3xNiMH.The RF input voltage is peak detected using an on-chip Schottky diode. The detected voltage is buffered and supplied to the Voutpin. A power saving shutdown mode reduces supply current to less than 2µA.The LTC5508 operates with input power levels from –32dBm to 12dBm.Applications802.11a, 802.11b, 802.11g, 802.15Multimode Mobile Phone ProductsOptical Data LinksWireless Data ModemsWireless and Cable InfrastructureRF Power AlarmEnvelope Detector

The LTC5530 is an RF power detector for RF applications operating in the 300MHz to 7GHz range. A temperature compensated Schottky diode peak detector and buffer amplifier are combined in a small ThinSOT™package. The supply voltage range is optimized for operation from a single lithium-ion cell or 3xNiMH.The RF input voltage is peak detected using an on-chip Schottky diode. The detected voltage is buffered and supplied to the VOUTpin. The output buffer gain is set via external resistors. A power saving shutdown mode reduces current to less than 2µA.The LTC5530 operates with input power levels from -32dBm to 10dBm.*Higher frequency operation is achievable with reduced performance. Consult factory for more information.Applications802.11a, 802.11b, 802.11g, 802.15, 802.16Multimode Mobile Phone ProductsOptical Data LinksWireless Data ModemsWireless and Cable InfrastructureRF Power AlarmEnvelope Detector

The LTC5531 is an RF power detector for RF applications operating in the 300MHz to 7GHz range. A temperature compensated Schottky diode peak detector and buffer amplifier are combined in a small ThinSOT™package. The supply voltage range is optimized for operation from a single lithium-ion cell or 3xNiMH.The RF input voltage is peak detected using an on-chip Schottky diode. The detected voltage is buffered and supplied to the VOUTpin. A power saving shutdown mode reduces current to less than 2µA. The initial offset voltage of 120mV ±35mV can be precisely adjusted using the VOSpin.The LTC5531 operates with input power levels from –32dBm to 10dBm.*Higher frequency operation is achievable with reduced performance. Consult factory for more information.Applications802.11a, 802.11b, 802.11g, 802.15, 802.16Multimode Mobile Phone ProductsOptical Data LinksWireless Data ModemsWireless and Cable InfrastructureRF Power AlarmEnvelope Detector

The LTC5532 is an RF power detector for RF applications operating in the 300MHz to 7GHz range. A temperature compensated Schottky diode peak detector and buffer amplifier are combined in a small ThinSOT™or (2mm x 2mm) DFN package. The supply voltage range is optimized for operation from a single lithium-ion cell or 3x NiMH.The RF input voltage is peak detected using an on-chip Schottky diode. The detected voltage is buffered and supplied to the VOUTpin.The LTC5532 output buffer gain is set via external resistors. The initial starting voltage of 120mV ±35mV can be precisely adjusted using the VOSpin.The LTC5532 operates with RF input power levels from –32dBm to 10dBmApplications802.11a, 802.11b, 802.11g, 802.15Multimode Mobile Phone ProductsOptical Data LinksWireless Data ModemsWireless and Cable InfrastructureRF Power AlarmEnvelope Detector

The LTC5533 is a dual channel RF power detector for RF applications operating in the 300MHz to 11GHz range. Two independent temperature compensated Schottky diode peak detectors and buffer amplifiers are combined in a small 4mm × 3mm DFN package.The RF input voltage is peak detected using on-chip Schottky diodes. The detected voltage is buffered and supplied to the VOUTpins. A power saving shutdown mode reduces current to less than 2µA/channel. The initial output starting voltages can be precisely adjusted using the VOSpins.The LTC5533 operates with input power levels from -32dBm to 12dBm.*Higher frequency operation is achievable with reduced performance. Consult factory for more information.ApplicationsPA Forward and Reverse Power MonitorDual PA Transmit Power Control802.11a, b, g, 802.15, WiMAXPA LinearizationFixed Wireless AccessRF Power AlarmEnvelope Detector