Overview
The ADL5513ACPZ-R7, produced by Analog Devices Inc., is a demodulating logarithmic amplifier designed to accurately convert RF input signals to corresponding decibel-scaled outputs. This device employs a progressive compression technique over a cascaded amplifier chain, each stage equipped with a detector cell. It is suitable for use in both measurement and controller modes, maintaining accurate log conformance for signals up to 4 GHz. The ADL5513 features a wide dynamic range, low noise, and high stability against supply and temperature variations, making it ideal for various RF measurement and power control applications.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Frequency Range | 1 MHz to 4 GHz | |
| Dynamic Range | Typically 80 dB (referred to 50 Ω) | Error less than ±3 dB and 74 dB with error less than ±1 dB |
| Response Time | 20 ns | Enables RF burst detection to a pulse rate beyond 50 MHz |
| Supply Voltage | 2.7 V to 5.5 V | |
| Current Consumption | 31 mA (active), 200 μA (disabled) | |
| Operating Temperature Range | -40°C to +125°C | |
| Package Type | 3 mm × 3 mm, 16-lead LFCSP | |
| Logarithmic Slope | 21 mV/dB | Determined by the VSET interface |
| Intercept | -88 dBm (referred to 50 Ω, continuous wave input, 900 MHz) | Using the INHI input |
Key Features
- Wide bandwidth: 1 MHz to 4 GHz
- High dynamic range: Typically 80 dB with error less than ±3 dB and 74 dB with error less than ±1 dB
- Low noise measurement/controller output (VOUT)
- Single-supply operation: 2.7 V to 5.5 V at 31 mA
- Power-down feature: 1 mW at 5 V
- Small footprint LFCSP package
- Fabricated using high-speed SiGe process
- Stable logarithmic intercept over a wide temperature range
Applications
- RF transmitter power amplifier linearization and gain/power control
- Power monitoring in radio link transmitters
- RSSI measurement in base stations, WLAN, WiMAX, RADAR
Q & A
- What is the frequency range of the ADL5513?
The ADL5513 operates over a frequency range of 1 MHz to 4 GHz.
- What is the dynamic range of the ADL5513?
The dynamic range is typically 80 dB (referred to 50 Ω) with error less than ±3 dB and 74 dB with error less than ±1 dB.
- How fast is the response time of the ADL5513?
The response time is 20 ns, enabling RF burst detection to a pulse rate beyond 50 MHz.
- What is the supply voltage range for the ADL5513?
The supply voltage range is 2.7 V to 5.5 V.
- What is the current consumption of the ADL5513?
The current consumption is 31 mA when active and decreases to 200 μA when disabled.
- What is the operating temperature range of the ADL5513?
The operating temperature range is -40°C to +125°C.
- What package type is the ADL5513 available in?
The ADL5513 is available in a 3 mm × 3 mm, 16-lead LFCSP package.
- What is the logarithmic slope of the ADL5513?
The logarithmic slope is 21 mV/dB, determined by the VSET interface.
- What are some common applications of the ADL5513?
Common applications include RF transmitter power amplifier linearization and gain/power control, power monitoring in radio link transmitters, and RSSI measurement in base stations, WLAN, WiMAX, RADAR.
- Is the ADL5513 suitable for controller applications?
Yes, the ADL5513 can be configured to provide a control voltage to a power amplifier or a measurement output from the VOUT pin, making it suitable for controller applications.
