HL8838 Broadband DC Block (16 kHz to 145 GHz)
Datasheet (Preliminary)
The HL8838 is an ultra-broadband DC Block with a typical insertion loss of < 3 dB over an industry-best bandwidth of 16 kHz to 145GHz.
The DC block will remove DC bias from the input signal to prevent damage to DC-sensitive devices or equipment.
These devices are suitable for use in 224 Gbps PAM4 communications systems, optical communication systems, high-speed data systems, level shifting, cascading, and interfacing between devices with incompatible DC operating points.
They can also be used to improve RF power measurements when a power meter with DC sensitivities is used.
This part is available as matched pairs or individual units and a variety of connector configurations.
Key Specifications (typical)
| Bandwidth | 16 kHz to 145 GHz (opt. -10) 160 kHz to 145 GHz (opt. -11) |
|---|---|
| Capacitance | 100 nF, ceramic (opt. -10) 10 nF, silicon (opt. -11) |
| Insertion Loss | < 3 dB, nominal, 16 kHz ≤ f ≤ 145 GHz |
| Connectors | 0.8 mm, 2x jack |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
| Warranty | 1 year, repair or replacement |





