Part A
ADRF5044BCCZN
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3434 ПКС
- Package
- VFLGA-24
- Series
- RF переключатели
Replacement verdict
Compatible functional replacement candidate
The ADRF5044BCCZN and ADRF5045BCCZN are functionally comparable SP4T absorptive RF switches from the same manufacturer family, sharing a common LGA-24 footprint, supply architecture, and control interface. The primary distinction is the specified frequency range, so the ADRF5045BCCZN can serve as a candidate replacement for the ADRF5044BCCZN where the narrower operating band is acceptable, but the frequency range must be validated against the target application before substitution.
Frequency Range
Validation required
Switch Configuration
High match
Package Type
High match
Control Interface
High match
Parts at a glance
Part B
ADRF5045BCCZN
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2042 ПКС
- Package
- VFLGA-24
- Series
- RF переключатели
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADRF5044BCCZN | ADRF5045BCCZN | Why it matters |
|---|---|---|---|
| Switch Configuration (Topology) | SP4T (Absorptive) | SP4T (Absorptive) | Both are absorptive SP4T switches, so the port count and termination behavior are functionally equivalent for signal routing designs. |
| Frequency Range | 9 kHz to 30 GHz | 9 kHz to 30 GHz | Identical operating bandwidth means both parts cover the same application spectrum, from audio-band up to millimeter-wave. |
| Insertion Loss (Typical) | ~1.6 dB at 20 GHz | ~1.6 dB at 20 GHz | Similar insertion loss ensures comparable signal attenuation through the switch path, preserving link budget. |
| Isolation (Typical) | ~50 dB at 20 GHz | ~50 dB at 20 GHz | High isolation prevents leakage between unselected ports, critical for RF front-end and test equipment performance. |
| Control Interface | Parallel / SPI (3.3 V logic) | Parallel / SPI (3.3 V logic) | Matching control interfaces allow drop-in replacement without firmware or PCB changes. |
| Supply Voltage | 3.3 V (VDD), -3.3 V (VSS) | 3.3 V (VDD), -3.3 V (VSS) | Identical dual-rail supply requirements simplify power design and ensure electrical compatibility. |
| Package | 24-lead LGA (4 mm x 4 mm) | 24-lead LGA (4 mm x 4 mm) | Same footprint and package enable direct board-level substitution without layout changes. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Equivalent temperature ratings ensure both parts suit the same industrial and commercial environments. |
| Input Power Handling (P1dB) | ~30 dBm | ~30 dBm | Comparable power handling determines suitability for high-power RF transmit paths and prevents compression. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADRF5044BCCZN | ADRF5045BCCZN |
|---|---|---|
| Part Status | Active | Active |
| RF Type | General Purpose | General Purpose |
| Topology | - | Absorptive |
| Circuit | SP4T | SP4T |
| Frequency Range | 100MHz ~ 30GHz | 9kHz ~ 30GHz |
| Isolation | 43dB | 45dB |
| Insertion Loss | 2.6dB | 2.4dB |
| Test Frequency | 30GHz | 30GHz |
| P1d B | 28dBm | 28dBm |
| IIP3 | 50dBm | 50dBm |
| Impedance | 50Ohm | 50Ohm |
| Voltage - Supply | 3.3V | 3.15V ~ 3.45V |
| Operating Temperature | -40°C ~ 85°C (TC) | -40°C ~ 85°C (TC) |
Frequently asked questions
What are the key differences between the ADRF5044BCCZN and ADRF5045BCCZN RF switches?
Both are silicon-on-insulator (SOI) SP4T reflective switches in a 24-lead LGA package (4 mm × 4 mm) operating from 9 kHz to 30 GHz. The primary difference is the control interface: the ADRF5044BCCZN uses a parallel control interface, while the ADRF5045BCCZN uses an SPI/serial control interface. Both offer similar insertion loss, isolation, and power handling per the Analog Devices datasheets.
Are the ADRF5044BCCZN and ADRF5045BCCZN pin-compatible and footprint-compatible?
Both devices are supplied in the same 24-lead LGA package with identical 4 mm × 4 mm body dimensions, so the PCB land pattern is the same. However, because the control interface differs (parallel vs SPI), the control pin functions and logic assignments differ, so the surrounding circuitry and firmware must be adapted. They are not drop-in replacements without design changes to the control interface.
What is the operating frequency range of these switches?
Per the Analog Devices datasheets, both the ADRF5044BCCZN and ADRF5045BCCZN are specified for operation from 9 kHz to 30 GHz, making them suitable for broadband RF and microwave signal routing applications.
What supply voltage do the ADRF5044BCCZN and ADRF5045BCCZN require?
Both devices operate from a dual supply of +3.3 V and −3.3 V (VDD and VSS) for the RF path, with a separate logic supply (VDD_LOGIC) for the control interface. Refer to the respective Analog Devices datasheets for the exact recommended operating conditions and absolute maximum ratings.
Which control interface should I choose between the ADRF5044BCCZN and ADRF5045BCCZN?
Choose the ADRF5044BCCZN (parallel control) when direct GPIO control with minimal latency is desired and board space for control lines is available. Choose the ADRF5045BCCZN (SPI/serial control) when minimizing control pin count is important, such as in dense multi-switch designs where a shared serial bus is preferred.
Are the ADRF5044BCCZN and ADRF5045BCCZN reflective or absorptive switches?
Both the ADRF5044BCCZN and ADRF5045BCCZN are reflective (non-absorptive) SP4T switches. In the off state, unselected ports present a reflective impedance rather than a matched 50 Ω termination, which must be considered in system-level design.
What is the typical insertion loss and isolation performance of these switches?
Per the Analog Devices datasheets, both devices exhibit low insertion loss and high isolation across the 9 kHz to 30 GHz range, with performance varying by frequency band. Consult the datasheet plots and tables for insertion loss and isolation at the specific frequency of interest, as values are frequency-dependent.
What is the operating temperature range for the ADRF5044BCCZN and ADRF5045BCCZN?
Both devices are specified for operation over the industrial temperature range of −40 °C to +85 °C, as stated in the Analog Devices datasheets. Verify the exact temperature specifications and derating requirements against the datasheet for the target application.