Şirket Blog About ADI ADL5519 1 kHz to 10 GHz, 62 dB Dual-Channel Logarithmic Detector/Controller—Brand-New, Original, Genuine Products in Stock

Mingjiada Electronics supplies brand-new, genuine ADI (Analog Devices) ADL5519 devices. This device is a dual-channel demodulating logarithmic amplifier that integrates two AD8317s. It accurately converts RF input signals into corresponding decibel-scaled outputs, providing independent and precisely calibrated logarithmic output voltages for two RF measurement channels. Manufactured using a high-speed SiGe bipolar IC process, the ADL5519 integrates dual channels, differential channel output ports, and a precisely calibrated temperature sensor, making it an ideal choice for applications such as RF power amplifier linearization, transmitter power monitoring, and dual-channel wireless infrastructure radios.

Key Specifications

Manufacturer: Analog Devices (ADI)

Part Number: ADL5519 / ADL5519ACPZ

Product Type: Dual-Channel Demodulation Logarithmic Detector/Controller

Frequency Range: 1 MHz to 10 GHz (precise logarithmic consistency maintained from 1 kHz to 8 GHz)

Dynamic Range (±3 dB): 62 dB (typical)

Dynamic Range (±1 dB): >50 dB (up to 8 GHz, referenced to 50 Ω)

Temperature Stability: ±0.5 dB (−40°C to +85°C)

Logarithmic Slope: −22 mV/dB

Logarithmic Intercept: 22 dBm

Pulse Response Time: 6 ns / 8 ns (fall time / rise time)

Supply Voltage: 3.3 V to 5.5 V

Typical Supply Current: 60 mA (<1 mA when disabled)

Input Impedance: 1670 Ω ∥ 0.47 pF

Channel-to-Channel Isolation (A to B): 80 dB

Package Type: 32-pin LFCSP (5 mm × 5 mm × 0.75 mm, with exposed pads)

Operating Temperature Range: −40°C to +125°C

Process Technology: High-speed SiGe bipolar IC process

Key Features

Wide Bandwidth and High Dynamic Range: The ADL5519 covers a wide frequency range from 1 MHz to 10 GHz, maintaining precise logarithmic consistency up to 8 GHz, with a typical dynamic range of 62 dB at ±3 dB and a dynamic range greater than 50 dB at ±1 dB, meeting the power detection requirements of various RF systems ranging from base stations to radar.

Dual-Channel Independent Measurement and Differential Output: The device incorporates two fully independent AD8317 logarithmic amplifiers, providing four logarithmic amplifier measurement results simultaneously. OUTA and OUTB provide linear dB measurement outputs, with a slope that can be conveniently adjusted to −22 mV/dB; OUTP and OUTN provide the difference between the logarithmic amplifiers at OUTA and OUTB, which can be output as either a differential or single-ended signal. On-chip channel matching makes the logarithmic amplifier outputs insensitive to temperature and process variations.

Integrated Temperature Sensor: The temperature sensor pin provides a scaled voltage proportional to temperature across the operating temperature range, facilitating temperature compensation and thermal management in the system.

Fast Pulse Response: With a response time of 6 ns/8 ns (fall/rise), it can detect RF burst pulses with frequencies greater than 50 MHz, making it suitable for radar and communication systems requiring fast power detection.

Low-noise controller output: The broadband noise on the output pins has been specially processed to reduce it to a low level; either output pin can be configured to provide a control voltage to a variable gain amplifier (VGA), making it suitable for controller applications.

Flexible Common-Mode Reference Setting: An optional voltage applied to VLVL provides a common-mode reference level to bias OUTP and OUTN above ground potential, facilitating interfacing with ADCs or control circuits with different input ranges.

Typical Applications

The ADL5519 is primarily intended for the following RF and wireless communication applications:

RF Power Amplifier Linearization and Gain/Power Control: Utilizes the logarithmic detector output to provide precise closed-loop power control for power amplifiers.

Radio Link Transmitter Power Monitoring: Monitors transmitter output power in real time to ensure stable link operation.

Dual-Channel Wireless Infrastructure Radios: Suitable for base stations and devices requiring simultaneous monitoring of two RF channels.

Antenna VSWR Monitors: Detects antenna VSWR anomalies through dual-channel measurements.

RSSI Measurement: Measures received signal strength indication in base stations, WLAN, WiMAX, and radar systems.

Mingjiada Supply Services

Mingjiada Electronics maintains a long-term stock of ADL5519 series products, offering brand-new, genuine items and supporting one-stop order fulfillment. With deep expertise in the RF and microwave component sector, the company provides stable component supply support to wireless communication equipment manufacturers, base station equipment suppliers, radar system integrators, and test instrument manufacturers. Current inventory information is as follows:

Part Number Brand Package Lot Number Quantity in Stock Remarks

ADL5519ACPZ ADI LFCSP-32 22+ 1,500 Brand-new, factory-sealed

If you need a detailed quote for the ADL5519 or wish to request samples, please feel free to contact Mingjiada Electronics at any time.

Contact: Mr. Chen

Mobile: +86 13410018555

Email: sales@hkmjd.com

Tags: ADL5519ACPZ, ADL5519ACP, ADL5519AC, ADL5519A, ADL5519