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0.25dB LSB 7-Bit Digital Attenuator SMT, 10 - 300 MHz

Product Details

Data Sheet
Package Layout
Tape & Reel

Quality & Reliability

Environmental Data Sheet
Qualification Test Reports

Press & Media

Product Press Release

Life Cycle Status

Production, Recommended for New Designs

Freq. (GHz) Function Loss (dB) Atten. Range (dB) IIP3 (dBm) Control Input (Vdc) Package
0.01 - 0.3 7-Bit Digital, Serial Control 3.3 0.25 to 31.75 40 TTL / CMOS LP3


• 0.25 dB LSB Steps to 31.75 dB
• Power-Up State Selection
• High Input IP3: +40 dBm
• TTL/CMOS Compatible, Serial Control
• Excellent State & Step Accuracy ±0.25 dB
• Single +5V Supply
• 16 Lead 3x3mm SMT Package: 9mm²

Typical Applications

• Cellular/3G Infrastructure
• WiBro / WiMAX / 4G
• Microwave Radio & VSAT
• Test Equipment and Sensors
• IF & RF Applications

Functional Diagram

General Description

The HMC759LP3E is a 7-bit BiCMOS Digital Attenuator in a low cost leadless SMT package. This versatile digital attenuator incorporates off-chip AC ground capacitors for near DC operation, making it suitable for a wide variety of RF and IF applications. The control interface is CMOS/TTL compatible and accepts a three wire serial input. The HMC759LP3E features user selectable power up states and a serial output port for cascading other Hittite serial controlled components. The HMC759LP3E is housed in a RoHS compliant 3x3 mm QFN leadless package, and occupies only 9 mm².