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
Select Image Part # Mfr. Description Datasheet Availability Pricing (SGD) 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 6 Bit 31.5dB 0.5dB, 1.0dB Digital Step Attenuator, optional ext. Vss 191In Stock
Min.: 1
Mult.: 1
: 250

Die 31.5 dB 55 GHz 50 Ohms 6 bit 1 Channel 1 dB
pSemi Attenuators 75ohm 6Bit 31.5dB 0.5dB Digital Step Attenuator, optional ext. Vss 565In Stock
3,000Expected 11/9/2026
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 7Bit 31.75dB 0.25dB, 0.5dB, 1.0dB Digital Step Attenuator, optional 10In Stock
6,000Expected 27/11/2026
Min.: 1
Mult.: 1
: 3,000

QFN-32 31 dB 6 GHz 50 Ohms 7 bit 1 Channel 1 dB
pSemi Attenuators 50ohm 6Bit 31.5dB 0.5dB Digital Step Attenuator
54,231Expected 6/8/2026
Min.: 1
Mult.: 1
: 3,000

QFN-20 31.5 dB 4 GHz 50 Ohms 6 bit 1 Channel 0.5 dB

pSemi Attenuators 50ohm 2Bit 18.0dB 6.0dB Digital Step Attenuator
31,853On Order
Min.: 1
Mult.: 1
: 3,000

QFN-12 18 dB 6 GHz 50 Ohms 2 bit 1 Channel 12 dB
pSemi Attenuators ext. Vss
4,016Expected 28/9/2026
Min.: 1
Mult.: 1
: 3,000

QFN-24 31.75 dB 6 GHz 50 Ohms 7 bit 1 Channel 1 dB
pSemi Attenuators 50ohm 5Bit 15.5dB 0.5dB Digital Step Attenuator
6,000Expected 13/11/2026
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 Non-Stocked Lead-Time 24 Weeks
Min.: 3,000
Mult.: 3,000
: 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 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
pSemi Attenuators 50ohm 7Bit 31.75dB 0.25dB, 0.5dB, 1.0dB Digital Step Attenuator, w/o Lead-Time 24 Weeks
Min.: 1
Mult.: 1
: 3,000

QFN-32 31.75 dB 6 GHz 50 Ohms 7 bit 1 Channel 1 dB