Data Sheet

ADRF5700

46 dB, 2 dB LSB, 5-Bit, Silicon Digital Attenuator, 100 MHz to 22 GHz

Rev. 0

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FEATURES

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Wideband frequency range: 100 MHz to 22 GHz

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Attenuation range: 46 dB with 2 dB steps

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Low insertion loss

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1.6 dB typical up to 10 GHz

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2.0 dB typical up to 20 GHz

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High attenuation accuracy

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+(0.1 + 0.5% of attenuation state) typical up to 10 GHz

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−(0.1 + 2.0% of attenuation state) typical up to 10 GHz

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+(0.1 + 0.5% of attenuation state) typical up to 20 GHz

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−(0.1 + 3.0% of attenuation state) typical up to 20 GHz

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Low step error

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±0.2 dB typical up to 10 GHz

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±0.3 dB typical up to 20 GHz

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High input linearity

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P0.1dB: >27 dBm typical at all attenuation states

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P1dB: >30 dBm typical at all attenuation states

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IP3: >47 dBm typical at all attenuation states

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High RF power handling

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24 dBm steady state average

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30 dBm steady state peak

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Consistent return loss at all attenuation states

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Tight distribution in relative phase

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No low frequency spurious signals

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Parallel mode control, CMOS/LVTTL compatible

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RF amplitude settling time (0.1 dB of final RF output): 130 ns

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20-terminal, 3.0 mm × 3.0 mm LGA package

APPLICATIONS

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Industrial scanners

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Test and instrumentation

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Cellular infrastructure: 5G millimeterwave

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Military radios, radars, electronic counter measures (ECMs)

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Microwave radios and very small aperture terminals (VSATs)

FUNCTIONAL BLOCK DIAGRAM

Figure 1. Functional Block Diagram

GENERAL DESCRIPTION

The ADRF5700 is a silicon, 5-bit digital attenuator with 46 dB

attenuation control range in 2 dB steps.

This device operates from 100 MHz to 22 GHz with better than

2.0 dB of insertion loss and high attenuation accuracy. The

ADRF5700 supports bidirectional operation and has a RF input

power handling capability of 24 dBm average and 30 dBm peak for

all attenuation states.

The ADRF5700 requires a dual-supply voltage of +3.3 V and

−3.3 V. The device features parallel mode control, and complemen-

tary metal-oxide semiconductor (CMOS)-/low voltage transistor to

transistor logic (LVTTL)-compatible controls.

The ADRF5700 can also operate with a single positive supply

voltage (VDD) applied while the negative supply voltage (VSS) is

tied to ground. In this operating condition, the small signal perform-

ance is maintained while the switching characteristics, linearity, and

power handling performance are derated (see Table 2).

The ADRF5700 RF ports are designed to match a characteristic

impedance of 50 Ω. The ADRF5700 comes in a 20-terminal, 3.0

mm × 3.0 mm, RoHS compliant, land grid array (LGA) package and

operates from −40°C to +105°C.