ADI HMC8073LP3DE

The HMC8073 is a 6-bit DSA operating from 0.6 GHz to 3.0 GHz with 31.5 dB attenuation range in 0.5 dB steps. Implemented in silicon, this attenuator features fast settling time, low power consumption, and high ESD robustness. The device incorporates glitch-free state transitioning, enabling attenuation state changes without overshoot, and is optimized for excellent step accuracy, high power handling, and high linearity across frequency and temperature. The RF input and output are internally matched to 50Ω, requiring no external matching components. The design is bidirectional, with interchangeable RF input and output ports. The external address feature of the HMC8073 allows users to control up to eight DSAs over a single bus. The DSA includes an on-chip regulator supporting a wide supply voltage range of 3.3 V to 5.0 V with no performance variation in electrical characteristics. The HMC8073 uses a CMOS- and TTL-compatible interface for serial (3-wire) control of the attenuator. The HMC8073 is available in a compact, RoHS-compliant 3 mm × 3 mm LFCSP package.

• Attenuation range: up to 31.5 dB with 0.5 dB LSB step size
• Low insertion loss: 1.1 dB at 1.0 GHz, 1.5 dB at 2.0 GHz
• Tight attenuation accuracy: <±0.25 dB (plus 3% of attenuation state)
• Low phase shift error: 4° phase shift at 1.0 GHz
• Bidirectional operation: handles up to 30 dBm high power
• Internal DC blocking on RFIN/RFOUT pins
• High linearity: typical P1dB of 31 dBm, typical input IP3 of 52 dBm
• Glitch-free state transitions
• Serial interface with TTL/CMOS compatibility
• Up to 8 devices on a single data bus
• Single-supply operation: 3.3 V to 5.0 V
• ESD sensitivity rating: Class 1C (1 kV HBM)
• 16-lead, 3 mm × 3 mm LFCSP: 9 mm²

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