ADH641S

PRODUCTION

DC to 18 GHz SP4T Non-Reflective Switch

Analog Devices ADH641S Product Info

10 February 2026 5

Features

ADH641S (CHIP)

Broadband Performance: DC to 18 GHz

High Isolation: 42 dB @ 12 GHz; 42 dB @ 10 GHz

Low Insertion Loss: 2.1 dB @ 12 GHz; 2.3 dB @ 10 GHz

Integrated 2:4 TTL decoder.

Screened In accordance with MIL-PRF-38534, Class K

Small Size: 1.92 mm x 1.6 mm x 0.1 mm (Die)

ADH641S (LH5)

Broadband Performance: DC to 18 GHz

High Isolation: 42 dB @ 12 GHz; 42 dB @ 10 GHz

Low Insertion Loss: 2.1 dB @ 12 GHz; 2.3 dB @ 10 GHz

Integrated 2:4 TTL decoder.

Screened In accordance with MIL-PRF-38535, Class Level S

LH5, 12-Lead Ceramic Hermetic SMT [E-12-5] (LH5 Pkg)

Part details & applications

The ADH641S is a broadband non reflective GaAs pHEMT SP4T switch. Covering DC to 18 GHz, this switch offers high isolation, low insertion loss, on-chip termination of isolated ports, and extends the frequency coverage of the SP4T switch product line. This switch also includes an on-board binary decoder circuit that reduces the number of required logic control lines to two. The switch operates using a negative control voltage of 0/−5 V, requires a fixed Vss bias of −5 V, and exhibits fast switching speed and consumes much less dc current than pin diode-based solutions. The ADH641S is available in both die form and hermetic LH5 package.

Applications

Instrumentation
Sensors
Military and space

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