Part A
AD8307ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6156 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker
Replacement verdict
Compatible functional replacement candidate
The AD8307ARZ and AD8307AR-REEL7 are the same AD8307 logarithmic amplifier die in the same 8-lead SOIC package, differing only in packaging format (tube vs. tape-and-reel). They are functionally interchangeable for design, prototyping, and production use, with the reel variant suited to automated SMT assembly lines.
Package Type
High match
Functional Specifications
High match
Operating Temperature Range
High match
Packaging Format
Validation required
Parts at a glance
Part B
AD8307AR-REEL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5045 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8307ARZ | AD8307AR-REEL7 | Why it matters |
|---|---|---|---|
| Function | Logarithmic amplifier / RF detector | Logarithmic amplifier / RF detector | Both parts must perform the same core signal-detection function to be functionally substitutable. |
| Frequency Range | DC to 500 MHz | DC to 500 MHz | The operating frequency range determines whether the device suits the target RF application. |
| Dynamic Range | 92 dB | 92 dB | Dynamic range defines the span of input signal levels the detector can accurately measure. |
| Logarithmic Slope | 25 mV/dB | 25 mV/dB | The slope sets the output voltage change per dB of input, critical for calibration and system scaling. |
| Logarithmic Intercept | -84 dBm | -84 dBm | The intercept defines the reference point of the log transfer function and affects absolute power readings. |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Supply voltage compatibility ensures the part works within the target system's power rails. |
| Supply Current | 7.5 mA (typical) | 7.5 mA (typical) | Quiescent current affects power budget and thermal considerations in the design. |
| Package / Case | 8-Lead SOIC (Narrow) | 8-Lead SOIC (Narrow) | Package compatibility determines whether the part can be dropped into the same PCB footprint. |
| Packaging / Delivery Form | Tube | Tape & Reel (7-inch reel) | Delivery form affects manufacturing handling; tape and reel suits automated pick-and-place assembly while tubes suit manual or low-volume use. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8307ARZ | AD8307AR-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | Logarithmic Amplifier | Logarithmic Amplifier |
| Applications | Receiver Signal Strength Indication (RSSI) | Receiver Signal Strength Indication (RSSI) |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between AD8307ARZ and AD8307AR-REEL7?
Both parts are the same AD8307 logarithmic amplifier die in an 8-lead SOIC package (R-8 suffix). The difference is packaging format: AD8307ARZ is supplied in tube/tray quantities, while AD8307AR-REEL7 is supplied on a 7-inch tape-and-reel for automated assembly. The "Z" suffix in AD8307ARZ denotes RoHS-compliant lead finish per Analog Devices nomenclature; AD8307AR-REEL7 is the reeled variant of the same device.
Are AD8307ARZ and AD8307AR-REEL7 electrically and functionally identical?
Yes. Both are the AD8307, a 500 MHz, 92 dB dynamic range logarithmic amplifier/detector with a nominal 25 mV/dB slope and 0 dBm reference at approximately 2.0 V output. Package, pinout, and specified performance are the same; only the shipping container differs.
Can AD8307ARZ and AD8307AR-REEL7 be used interchangeably in a design?
Yes, from an electrical and footprint standpoint they are interchangeable because both use the same 8-lead SOIC (R-8) package and pinout. The choice depends on the assembly process: AD8307AR-REEL7 is intended for pick-and-place reel-fed lines, while AD8307ARZ is typically used for tube-fed or low-volume assembly.
What is the operating frequency range and dynamic range of the AD8307?
The AD8307 is specified for operation from DC to 500 MHz. It provides a nominal 92 dB dynamic range with a logarithmic slope of 25 mV/dB, making it suitable for RSSI, received signal strength indication, and RF power measurement applications.
What supply voltage and current does the AD8307 require?
The AD8307 operates from a single supply of 2.7 V to 5.5 V. Typical supply current is approximately 7.5 mA. These values apply equally to AD8307ARZ and AD8307AR-REEL7 since they are the same device.
Does the "Z" suffix in AD8307ARZ indicate RoHS compliance?
Yes. Per Analog Devices part-numbering convention, the "Z" suffix designates a RoHS-compliant package with a lead-free finish. AD8307AR-REEL7 is the reeled ordering variant; designers should confirm the specific RoHS status of the reeled part number against the current Analog Devices datasheet and product page before final qualification.
What is the package and pin count for both parts?
Both AD8307ARZ and AD8307AR-REEL7 are supplied in an 8-lead SOIC package (R-8). The pinout includes differential inputs, output, supply, and ground pins as defined in the AD8307 datasheet, and the land pattern is identical for both ordering variants.
Which part number should be selected for high-volume automated assembly?
AD8307AR-REEL7 is the appropriate choice for high-volume automated pick-and-place assembly because it is supplied on 7-inch tape-and-reel. AD8307ARZ is better suited to prototyping, tube-fed assembly, or low-volume production. Both share the same electrical specifications and SOIC footprint.