Part A
AD8362ARUZ
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4014 ПКС
- Package
- TSSOP-16
- Series
- RF детекторы
Replacement verdict
Not a drop-in replacement
The AD8367ARUZ-RL7 and AD8362ARUZ are not drop-in replacements for one another. Although both are Analog Devices RF/IF variable-gain signal-processing ICs in the same TSSOP-20 package, they differ fundamentally in function: the AD8367 is a 500 MHz variable-gain amplifier (VGA) with a linear-in-dB gain-control interface, while the AD8362 is a 3.8 GHz RMS-responding power detector (logarithmic detector) with a measurement output. Their signal-chain roles, output types, and control interfaces are incompatible, so substituting one for the other requires circuit redesign and validation.
Different device function
Different output type
Different control interface
Different frequency range
Parts at a glance
Part B
AD8367ARUZ-RL7
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5988 ПКС
- Package
- TSSOP-14
- Series
- Линейные - Усилетели - Приборы, ОП Усилетели, Буферные Усилетели
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8367ARUZ-RL7 | AD8362ARUZ | Why it matters |
|---|---|---|---|
| Function | Variable gain amplifier (VGA) | RMS-responding power detector | These are fundamentally different signal-chain functions, so they are not direct substitutes in a circuit. |
| Frequency range | LF to 500 MHz | 50 Hz to 3.8 GHz | Operating frequency band determines whether the part suits the target RF or IF application. |
| Primary output | Amplified RF signal (voltage gain) | Linear-in-dB DC voltage proportional to input power | One delivers an amplified signal while the other delivers a detected DC level, dictating circuit topology. |
| Gain / measurement range | -2.5 dB to +42.5 dB gain range | 65 dB measurement range | Defines the usable dynamic range for gain control versus power measurement. |
| Supply voltage | 2.7 V to 5.5 V | 4.5 V to 5.5 V | Supply range affects compatibility with the system power rail. |
| Package | 16-lead TSSOP | 16-lead TSSOP | Same package footprint allows board-level interchangeability even though functions differ. |
| Control interface | Analog gain-control voltage (AGC) | No gain control; provides power-detection output | Determines how the device is configured and controlled in a system. |
| Typical application | AGC amplifiers, gain-control loops, IF/RF amplification | RF power measurement, RSSI, transmitter power control | Application fit is the key criterion when deciding whether one part can replace the other. |
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 | AD8362ARUZ | AD8367ARUZ-RL7 |
|---|---|---|
| Part Status | Active | Active |
| Frequency | 50Hz ~ 3.8GHz | - |
| RF Type | Cellular, GSM, CDMA, TDMA, TETRA | - |
| Input Range | -52dBm ~ 8dBm | - |
| Accuracy | ±0.5dB | - |
| Voltage - Supply | 4.5V ~ 5.5V | - |
| Supply Current | 20 mA | 26mA |
| Mounting Type | Surface Mount | Surface Mount |
| Series | - | X-AMP® |
| Amplifier Type | - | Variable Gain |
| Number of Circuits | - | 1 |
| -3 dB Bandwidth | - | 500 MHz |
| Current - Input Bias | - | 27 µA |
| Voltage - Supply Span(Min) | - | 2.7 V |
| Voltage - Supply Span(Max) | - | 5.5 V |
| Operating Temperature | - | -40°C ~ 85°C |
Frequently asked questions
What are the primary functional differences between the AD8367ARUZ-RL7 and the AD8362ARUZ?
The AD8367ARUZ-RL7 is an analog-controlled variable gain amplifier (VGA) with a 45 dB gain range and a 500 MHz bandwidth, designed for RF/IF signal chains. The AD8362ARUZ is a 50 Hz to 3.8 GHz RMS-responding power detector that provides a linear-in-dB output voltage proportional to the RMS value of its input signal. In short, the AD8367 is a signal-path amplifier, while the AD8362 is a measurement/detection device.
Are the AD8367ARUZ-RL7 and AD8362ARUZ pin-compatible and directly interchangeable?
No. Both devices are supplied in a 20-lead TSSOP (RU-20) package, but their pin functions and internal architectures differ. The AD8367 pinout provides gain-control, input, and output pins for amplification, whereas the AD8362 pinout provides RF input, power-supply, and output-voltage pins for RMS detection. They are not drop-in replacements for one another.
What are the operating frequency ranges of the AD8367ARUZ-RL7 and AD8362ARUZ?
The AD8367ARUZ-RL7 is specified for operation from DC to 500 MHz, with useful performance typically extending to approximately 500 MHz. The AD8362ARUZ is specified over a 50 Hz to 3.8 GHz input frequency range, making it suitable for RF power measurement well into the microwave region.
How does the gain-control interface of the AD8367ARUZ-RL7 differ from the output interface of the AD8362ARUZ?
The AD8367ARUZ-RL7 uses an analog gain-control voltage (typically 0 V to 1 V) to set its gain linearly in dB across a nominal 45 dB range. The AD8362ARUZ does not have a gain-control input; instead, it produces an output voltage that is linear-in-dB with respect to the RMS input power, typically scaled at 50 mV/dB, for use by an ADC or control loop.
Can the AD8362ARUZ be used to measure the output of an AD8367ARUZ-RL7 in a closed-loop AGC system?
Yes, this is a common architecture. The AD8367ARUZ-RL7 amplifies or attenuates the signal, and the AD8362ARUZ can detect the resulting RMS power and provide a linear-in-dB feedback voltage. The designer must account for the AD8362 input range, the AD8367 output swing, and the loop dynamics, but the two parts are complementary in AGC and RF power-control applications.
What are the supply voltage and current requirements for each device?
The AD8367ARUZ-RL7 operates from a single 5 V supply and typically draws about 26 mA. The AD8362ARUZ operates from a single 5 V supply and typically draws about 20 mA. Both are specified for 5 V nominal operation, and actual current depends on operating conditions and configuration.
Which device is better suited for RF power measurement, and which for signal amplification?
For RF power measurement, the AD8362ARUZ is the appropriate choice because it is an RMS-responding detector with a linear-in-dB output over 50 Hz to 3.8 GHz. For signal amplification or gain control in a receive or transmit chain, the AD8367ARUZ-RL7 is the appropriate choice because it is a 45 dB variable gain amplifier with DC to 500 MHz bandwidth.