Overview
The ADL5519ACPZ-R7, produced by Analog Devices Inc., is a dual-demodulating logarithmic amplifier designed for precise RF signal measurement and power control. This device incorporates two AD8317 logarithmic detector/controller cores, enabling it to accurately convert RF input signals into corresponding decibel-scaled output voltages. The ADL5519 is fabricated on a SiGe bipolar IC process and is available in a compact 5 mm × 5 mm, 32-lead LFCSP package. It operates over a temperature range of -40°C to +125°C, making it suitable for a wide range of applications in RF and microwave systems.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 1 MHz to 8 GHz (useful operation up to 10 GHz) |
| Input Power Range | -60 dBm to 0 dBm (typical) |
| Log Conformance Error | ±1 dB (typical) |
| Noise Spectral Density | 1.15 nV/√Hz |
| Operating Current | Approximately 60 mA at 27°C |
| Stand-by Current | Less than 1 mA |
| Package Type | 32-lead LFCSP (5 mm × 5 mm) |
| Operating Temperature Range | -40°C to +125°C |
| Wake-up Time | About 0.5 μs |
Key Features
- Dual-channel, six-stage demodulating logarithmic amplifier
- Accurate conversion of RF input signals to decibel-scaled output voltages
- Independent, logarithmic output voltages for both RF measurement channels
- Additional output ports (OUTP and OUTN) for measured differences between channels
- On-chip channel matching for temperature and process insensitivity
- Temperature sensor pin providing a scaled voltage proportional to temperature
- Configurable output pins for control voltage to variable gain amplifiers (VGAs)
- Low broadband noise output pins
- Compact 32-lead LFCSP package with thermal and low inductance benefits
Applications
- RF measurement and power control systems
- Communications analog front ends
- Beamformers, phase shifters, and vector modulators
- Frequency dividers, multipliers, and detectors
- I/Q modulators and demodulators
- Phase locked loop (PLL) synthesizers and translation loops
- Quadrature digital up converters (QDUC)
- RF integrated transmitters, receivers, and transceivers
- RF mixers and switches
- Tunable filters and voltage-controlled oscillators (VCOs)
Q & A
- What is the primary function of the ADL5519ACPZ-R7?
The ADL5519ACPZ-R7 is a dual-demodulating logarithmic amplifier that converts RF input signals into decibel-scaled output voltages. - What is the frequency range of the ADL5519ACPZ-R7?
The device operates from 1 MHz to 8 GHz, with useful operation up to 10 GHz. - What is the typical log conformance error of the ADL5519ACPZ-R7?
The typical log conformance error is ±1 dB. - What is the noise spectral density of the ADL5519ACPZ-R7?
The noise spectral density is 1.15 nV/√Hz. - How much current does the ADL5519ACPZ-R7 consume during operation?
The operating current is approximately 60 mA at 27°C. - What is the stand-by current of the ADL5519ACPZ-R7?
The stand-by current is less than 1 mA. - What is the package type and size of the ADL5519ACPZ-R7?
The device is packaged in a 32-lead LFCSP (5 mm × 5 mm). - What is the operating temperature range of the ADL5519ACPZ-R7?
The operating temperature range is -40°C to +125°C. - How long does it take for the ADL5519ACPZ-R7 to wake up from power-down mode?
The wake-up time is about 0.5 μs. - Can the output pins of the ADL5519ACPZ-R7 be used for other functions?
Yes, the output pins can be configured to provide control voltage to variable gain amplifiers (VGAs) and other system solutions.
