Analog Devices

The HMC271ALP4(E) is a broadband 5-bit positive control GaAs IC digital attenuator with a CMOS compatible serial-to-parallel driver in low cost leadless QFN 4x4 mm SMT package. Covering 0.7 to 3.7 GHz, the insertion loss is typically less than 2.5 dB. The attenuator bit values are 1 (LSB), 2, 4, 8, and 16 dB for a total attenuation of 31 dB. Accuracy is excellent at ± 0.4 dB typical with an IIP3 of up to +48 dBm. Five bit CMOS compatible serial control words are used to select each attenuation state. A single Vcc bias of +3V to +5V applied through an external 5 kOhm resistor is required.The HMC271ALP4(E) is a replacement for the HMC271LP4(E).ApplicationsCellular/3G InfrastructureFixed Wireless, WiMax & WiBroTest Instrumentation

The HMC272AMS8(E) is a general purpose ultra miniature single balanced mixer in 8 lead plastic surface mount Mini Small Outline Package (MSOP). This passive MMIC mixer is constructed of GaAs Schottky diodes and a novel planar transformer balun on the chip. The RF port is balanced via the MMIC balun while the LO port is connected directly to the diodes. The consistent MMIC performance will improve system operation and assure regulatory compliance.ApplicationsUp or Down Converter for PCSW-CDMA2.4 GHz ISMMMDS

The HMC273MS10G(E) is a general purpose broadband 5-Bit positive control GaAs IC digital attenuator in a 10 lead MSOP plastic package. Covering 0.7 to 3.7 GHz, the insertion loss is typically less than 2.5 dB. The attenuator bit values are 1 (LSB), 2, 4, 8, and 16 dB for a total attenuation of 31 dB. Accuracy is excellent at ± 0.2 dB typical with an IIP3 of up to +48 dBm. Five bit control voltage inputs, toggled between 0 and +3 to +5 volts, are used to select each attenuation state. A single Vdd bias of +3 to +5 volts applied through an external 5K Ohm resistor is required.ApplicationsCellular; UMTS/3G InfrastructureISM, MMDS, WLAN, WiMAXMicrowave Radio & VSATTest Equipment and Sensors

The HMC276 is a low cost 4 x 2 switch matrix in leadless QFN 4 mm x 4 mm surface-mount package and a 24-lead QSOP package for use in RF multiplexing applications from 200 MHz to 3000 MHz. A positive voltage controlled 4-bit decoder is integrated on the switch. The switches may be used in either 75 Ω or 50 Ω systems. Both switch outputs (OP1 and OP2) can independently select any of the four inputs (HH, HL, VH, VL) or simultaneously select the same inputs.Note that the switch is bidirectional and the input/output functionality may be interchanged. The recommended loading impedance is 62.5 Ω on each input (HH, HL, VH, VL) and 75 Ω on each output (OP1 and OP2). All data presented were measured in a 50 Ω (input/output) system.ApplicationsCable modemCATVCellular systemsDBS

The HMC277MS8(E) is a general purpose single balanced mixer in an 8 lead plastic surface mount Mini Small Outline Package (MSOP). This passive MMIC mixer is constructed of GaAs Schottky diodes and a novel planar transformer balun on the chip. The HMC277MS8(E) requires no external matching components, and is ideal for upconverter and downconverter applications. The RF port is balanced via the MMIC balun while the LO port is connected directly to the diodes. This product is pin for pin compatible with the HMC272MS8(E) which operates from 1.7 to 3.0 GHz.ApplicationsCellular / 3G InfrastructureBasestations & RepeatersGSM, CDMA & WCDMASubscribers & Portables

The HMC284AMS8G & HMC284AMS8GE are low-cost SPDT switches in 8-lead grounded base MSOP packages. The design has been optimized to provide high isolation with minimal insertion loss for medium and low power applications. On-chip circuitry allows positive voltage control operation at very low DC currents with control inputs compatible with CMOS and most TTL logic families. In the "OFF" state, RF1 and RF2 are non-reflective.APPLICATIONSCellular/PCS Base Stations2.4 GHz ISM3.5 GHz Wireless Local Loop

The HMC290(E) is a broadband 2-bit positive control GaAs IC digital attenuators in a 6 lead SOT26 surface mount plastic package. Covering 0.7 to 4 GHz, the insertion loss is typically less than 0.7 dB. The attenuator bit values are 2 (LSB) and 4 dB for a total attenuation of 6 dB. Accuracy is excellent at ±0.2 dB typical with an IIP3 of up to +52 dBm. Two bit control voltage inputs, toggled between 0 and +3 to +5 volts, are used to select each attenuation state at less than 50 uA each. A single Vdd bias of +3 to +5 volts applied through an external 5K Ohm resistor is required. Occupying less than 9 mm², this is the smallest 2 - bit digital attenuator available.ApplicationsCellularPCS, ISM, MMDSWLL Handset & BaseStation

The HMC291SE is a general purpose broadband 2-bit positive control silicon IC digital attenuator in 6 lead SOT26 surface mount plastic package. The insertion loss is typically in between 0.4 dB - 1 dB through operating frequency range. The attenuator bit values are 4 (LSB) and 8 dB for a total attenuation of 12 dB. State error is excellent at ± 0.4 dB typical with an IIP3 of up to 57 dBm. Two bit control voltage inputs, toggled between 0V and +3V or +5V, are used to select each attenuation state at less than 25 µA each. A single VDD supply voltage of +3V to +5V applied through an external 4.7K Ohm resistor is required.ApplicationsCellularPCS, ISM, MMDSWLL handset & base station