HMC424ACHIPS
HMC424ACHIPS is GaAs Digital Attenuator manufactured by Analog Devices.
FEATURES
Attenuation range: 0.5 d B (LSB) steps to 31.5 d B ±0.5 d B typical step error
Low insertion loss: 2.8 d B typical at 4.0 GHz High linearity at VEE =
- 5 V
Input P0.1d B: 25 d Bm typical Input IP3: 45 d Bm typical High RF input power handling: 25 d Bm maximum Low relative phase: 30° at 6.0 GHz Single-supply operation:
- 3 V to
- 5 V Die size: 1.390 mm × 0.770 mm × 0.102 mm
APPLICATIONS
Cellular infrastructure Microwave radios and very small aperture terminals (VSATs) Test equipment and sensors Intermediate frequency (IF) and RF designs Military and space
FUNCTIONAL BLOCK DIAGRAM
VEE HMC424ACHIPS
RF1
RF2
V6
V5
V4
V3
V2
V1
Figure 1.
GENERAL DESCRIPTION
The HMC424ACHIPS is a broadband, 6-bit, gallium arsenide (Ga As), digital attenuator monolithic microwave integrated circuit (MMIC) chip with a 31.5 d B attenuation control range in 0.5 d B steps.
The HMC424ACHIPS offers excellent attenuation accuracy of ±(0.2 d B + 3% of attenuation state) and high input linearity over the specified frequency range from 0.1 GHz to 13.0 GHz with a typical insertion loss of ≤4.2 d B. The attenuator bit values are 0.5 d B (LSB), 1 d B, 2 d B, 4 d B, 8 d B, and 16 d B for a total attenuation of 31.5 d B with a ±0.5 d B of typical step error.
The device allows a user to program the attenuation state via six parallel control inputs toggled between 0 V and VEE.
The HMC424ACHIPS operates with a single negative supply voltage from
- 3 V to
- 5 V, and requires an external driver to interface with a CMOS/transistor to transistor logic (TTL) interface.
The HMC424ACHIPS es in a Ro HS pliant, 9-pad bare die.
Rev. B
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