2 dB LSB, 4-Bit, Silicon Digital Attenuator,
10 MHz to 60 GHz
Ultrawideband frequency range: 10 MHz to 60 GHz
Attenuation range: 2 dB steps to 22 dB
Low insertion loss
1.4 dB up to 20 GHz
2.2 dB up to 44 GHz
3.3 dB up to 55 GHz
±(0.1 + 1.0% of state) up to 20 GHz
±(0.2 + 3.0% of state) up to 44 GHz
±(0.2 + 7.0% of state) up to 55 GHz
Typical step error
±0.30 dB up to 20 GHz
±0.50 dB up to 44 GHz
±0.60 dB up to 55 GHz
High input linearity
P0.1dB: 25.5 dBm typical
IP3: 45 dBm typical
High RF input power handling: 24 dBm average, 24 dBm peak
Tight distribution in relative phase
No low frequency spurious signals
Parallel mode control, CMOS and LVTTL compatible
RF amplitude settling time (0.1 dB of final RF output): 175 ns
16-terminal, 2.5 mm × 2.5 mm, RoHS compliant LGA package
Test and instrumentation
Cellular infrastructure: 5G millimeter wave
Military radios, radars, electronic counter measures (ECMs)
Microwave radios and very small aperture terminals (VSATs)
The ADRF5740 is a silicon, 4-bit digital attenuator with 22 dB
attenuation control range in 2 dB steps.
The ADRF5740 operates from 10 MHz to 60 GHz with less than
3.3 dB of insertion loss and with ±(0.2 + 7.0% of attenuation state)
of attenuation accuracy at 55 GHz. The ATTIN port of the
ADRF5740 has an RF input power handling capability of 24 dBm
average and 24 dBm peak for all states.
FUNCTIONAL BLOCK DIAGRAM
16 15 14 13
The ADRF5740 requires a dual supply voltage of +3.3 V and
−3.3 V. The ADRF5740 features parallel mode control, and
CMOS- and low voltage transistor to transistor logic (LVTTL)-
The ADRF5740 RF ports are designed to match a characteristic
impedance of 50 Ω. The ADRF5740 comes in a 16-terminal,
2.5 mm × 2.5 mm, RoHS compliant, land grid array (LGA)
package and operates from −40°C to +105°C.
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