UltraCMOS® RF Digital Step Attenuators

pSemi UltraCMOS® RF Digital Step Attenuators (DSAs) offer flexibility and performance for wireless and broadband infrastructure equipment, LMRs, test-and-measurement equipment, and military RF applications. The UltraCMOS RF DSAs are offered in 50Ω and 75Ω variants, with multiple programming mode options, including serial, direct parallel, and latched parallel, making it easy to design them into a wide range of systems. These devices offer best-in-class linearity, outstanding attenuation accuracy, and low insertion loss.

Results: 10
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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Package/Case
Attenuation
Maximum Frequency
Impedance
Number of Bits
Number of Channels
Attenuator Step Size
pSemi Attenuators 50ohm 6Bit 31.5dB 0.5dB Digital Step Attenuator
Datasheet
11 178In Stock
41 075Expected 11/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

QFN-20 31.5 dB 4 GHz 50 Ohms 6 bit 1 Channel 0.5 dB
pSemi Attenuators 75ohm 6Bit 31.5dB 0.5dB Digital Step Attenuator, optional ext. Vss
Datasheet
1 101In Stock
3 000Expected 11/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

QFN-20 31.5 dB 2.5 GHz 75 Ohms 6 bit 1 Channel 0.5 dB

pSemi Attenuators 50ohm 2Bit 18.0dB 6.0dB Digital Step Attenuator
Datasheet
64 759On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

QFN-12 18 dB 6 GHz 50 Ohms 2 bit 1 Channel 12 dB
pSemi Attenuators 50ohm 6 Bit 31.5dB 0.5dB, 1.0dB Digital Step Attenuator, optional ext. Vss
Datasheet
248Expected 19/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 250

Die 31.5 dB 55 GHz 50 Ohms 6 bit 1 Channel 1 dB
pSemi Attenuators ext. Vss
Datasheet
30 976On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

QFN-24 31.75 dB 6 GHz 50 Ohms 7 bit 1 Channel 1 dB
pSemi Attenuators 50ohm 7Bit 31.75dB 0.25dB, 0.5dB, 1.0dB Digital Step Attenuator, w/o
Datasheet
62 135Expected 12/03/2027
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

QFN-32 31.75 dB 6 GHz 50 Ohms 7 bit 1 Channel 1 dB
pSemi Attenuators 50ohm 7Bit 31.75dB 0.25dB, 0.5dB, 1.0dB Digital Step Attenuator, optional
Datasheet
14 848On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

QFN-32 31 dB 6 GHz 50 Ohms 7 bit 1 Channel 1 dB
pSemi Attenuators 50ohm 5Bit 15.5dB 0.5dB Digital Step Attenuator
Datasheet
4 950Expected 13/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

QFN-24 15.5 dB 6 GHz 50 Ohms 5 bit 1 Channel 0.5 dB
pSemi Attenuators 50ohm 2Bit 18.0dB 6.0dB Digital Step Attenuator
Datasheet
Non-Stocked Lead-Time 24 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 3 000
QFN-12 18 dB 3 GHz 50 Ohms 2 bit 1 Channel 6 dB

pSemi Attenuators 75ohm 6Bit 31.5dB 0.5dB Digital Step Attenuator
Datasheet
Non-Stocked Lead-Time 24 Weeks
Min.: 3 000
Mult.: 3 000
: 3 000
QFN-20 31.5 dB 2 GHz 75 Ohms 6 bit 1 Channel 0.5 dB