Part A
AD8362ARUZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4014 PCS
- Package
- TSSOP-16
- Series
- RF Detectors
Replacement verdict
Compatible functional replacement candidate
The AD8367ARUZ and AD8362ARUZ share the same TSSOP-14 package and 5 V single-supply operation, but they are not direct substitutes: the AD8367ARUZ is a variable-gain amplifier with a 500 MHz bandwidth and analog gain control, while the AD8362ARUZ is a 50 Hz to 3.8 GHz RMS-responding power detector with a logarithmic output. Selection should be driven by the required function—gain control versus RF power measurement—rather than by pin compatibility alone.
Function Type
Validation required
Package Type
High match
Frequency Range
Validation required
Output Type
Validation required
Parts at a glance
Part B
AD8367ARUZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1680 PCS
- Package
- TSSOP-14
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
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 | 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; one amplifies with adjustable gain while the other measures signal power. |
| Frequency range | LF to 500 MHz | 50 Hz to 3.8 GHz | Operating frequency range determines whether the part can be used in the target RF band; the detector covers a much wider range than the VGA. |
| Gain / measurement range | -2.5 dB to +42.5 dB (45 dB gain range) | 65 dB measurement range | The VGA provides adjustable amplification, while the detector provides a wide dynamic range for power measurement; the parameter type and span differ. |
| Output type | Amplified RF signal | Linear-in-dB DC voltage proportional to input power | The output interface dictates how the part connects to the rest of the system; one drives an RF load, the other feeds an ADC or control loop. |
| Supply voltage | 2.7 V to 5.5 V | 4.5 V to 5.5 V | Supply range affects compatibility with the system rail; the VGA supports lower-voltage rails than the detector. |
| Supply current | ~26 mA typical | ~22 mA typical | Quiescent current impacts power budget and thermal design, which matters for portable and densely packed systems. |
| Package | 16-lead TSSOP | 16-lead TSSOP | Package and pinout affect board layout and whether a drop-in replacement is physically possible; both share the same package footprint here. |
| Operating temperature range | -40 °C to +85 °C | -40 °C to +85 °C | Industrial temperature range confirms suitability for harsh environments; both parts meet the same range. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8362ARUZ | AD8367ARUZ |
|---|---|---|
| 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 and AD8362ARUZ?
The AD8367ARUZ is an analog-controlled variable gain amplifier (VGA) with a 45 dB gain range and a 500 MHz bandwidth, intended for receive signal chains. The AD8362ARUZ is a 50 Hz to 3.8 GHz RMS-responding power detector that provides a linear-in-dB output proportional to the true RMS value of the input signal. They serve different signal-chain functions and are not interchangeable.
Do the AD8367ARUZ and AD8362ARUZ share the same package and pinout?
Both devices are offered in a 20-lead TSSOP package (RU suffix), but their pin functions differ because the AD8367ARUZ is a VGA and the AD8362ARUZ is an RMS power detector. Pin assignments and external component requirements are not identical, so PCB layouts cannot be reused without verification against each datasheet.
What is the operating frequency range of each device?
The AD8367ARUZ is specified for operation from 500 MHz down to low frequencies, with a -3 dB bandwidth of 500 MHz. The AD8362ARUZ is specified over a 50 Hz to 3.8 GHz input frequency range. The AD8362ARUZ therefore covers a much wider frequency span, while the AD8367ARUZ is optimized for VGA operation within its bandwidth.
Can the AD8367ARUZ be used as a power detector like the AD8362ARUZ?
No. The AD8367ARUZ is a variable gain amplifier with an analog gain-control interface and does not include an RMS-responding detector output. The AD8362ARUZ integrates an RMS detector and provides a linear-in-dB output voltage. Using the AD8367ARUZ for power measurement would require additional external circuitry and is not a direct substitute.
What supply voltage and current consumption do these devices require?
Both the AD8367ARUZ and AD8362ARUZ operate from a single 5 V supply. The AD8367ARUZ typically draws approximately 26 mA, while the AD8362ARUZ typically draws approximately 20 mA. Exact limits should be confirmed against the respective manufacturer datasheets for the target operating conditions.
Which device is better suited for automatic gain control (AGC) loops?
The AD8367ARUZ is designed as a VGA with a linear-in-dB gain-control interface, making it suitable as the gain element in AGC loops. The AD8362ARUZ is an RMS power detector that can provide the measurement feedback for an AGC loop but does not itself amplify or attenuate the signal. In a complete AGC system, the two devices can be complementary rather than alternatives.
Are the AD8367ARUZ and AD8362ARUZ drop-in replacements for each other?
No. Despite sharing a 20-lead TSSOP package, the two devices have different functions, pin assignments, and external component requirements. A direct drop-in replacement is not supported; any substitution requires full validation against the manufacturer datasheets and the target design.