Overview
The AD8307ARZ from Analog Devices Inc. is a highly versatile and stable logarithmic amplifier designed for a wide range of applications. It is the first logarithmic amplifier available in an 8-lead SOIC_N package, making it compact and easy to integrate into various systems. The device operates on a single-supply voltage of 2.7 V to 5.5 V and consumes a typical current of 7.5 mA. It features a fast-acting CMOS-compatible control pin that can disable the device, reducing the current to a standby level of 150 μA. This amplifier is known for its high stability, ease of use, and minimal requirement for external components.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Package Type | 8-lead SOIC_N |
| Power Supply Type | Single |
| Typical Single Supply Voltage | 2.7 V to 5.5 V |
| Maximum Input Offset Voltage | 500 μV |
| Maximum Input Resistance | 1.1 kΩ |
| Output Type | Rail to Rail Output |
| Mounting Type | Surface Mount |
| Dimensions | 5 mm x 4 mm x 1.5 mm |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Temperature | +85 °C |
| Power-Up Time | 100 ns |
| Sleep Current | 150 μA |
Key Features
- Highly stable scaling over temperature
- Fully differential dc-coupled signal path
- Fast power-up time of 100 ns and low sleep current of 150 μA
- Dynamic range of 92 dB to ±3 dB law conformance and 88 dB to a tight ±1 dB error bound up to 100 MHz
- Low input noise spectral density of 1.5 nV/√Hz (typical)
- Input bias current of 10 μA (typical)
- CMOS-compatible control pin for enabling/disabling the device
Applications
- Conversion of signal level to decibel form
- Transmitter antenna power measurement
- Receiver signal strength indication (RSSI)
- Low-cost radar and sonar signal processing
- Network and spectrum analyzers (up to 120 dB)
- Signal level determination down to 20 Hz
- True decibel ac mode for multimeters
Q & A
- What is the typical supply voltage range for the AD8307ARZ?
The typical supply voltage range is 2.7 V to 5.5 V.
- What is the package type of the AD8307ARZ?
The package type is 8-lead SOIC_N.
- What is the maximum input offset voltage of the AD8307ARZ?
The maximum input offset voltage is 500 μV.
- How long does it take for the AD8307ARZ to power up?
The power-up time is 100 ns.
- What is the sleep current of the AD8307ARZ when disabled?
The sleep current is 150 μA.
- What is the dynamic range of the AD8307ARZ?
The dynamic range is 92 dB to ±3 dB law conformance and 88 dB to a tight ±1 dB error bound up to 100 MHz.
- What are some common applications of the AD8307ARZ?
Common applications include signal level conversion to decibel form, transmitter antenna power measurement, RSSI, low-cost radar and sonar signal processing, and network and spectrum analyzers.
- What is the operating temperature range of the AD8307ARZ?
The operating temperature range is -40 °C to +85 °C.
- Does the AD8307ARZ require significant external components?
No, the AD8307ARZ requires no significant external components.
- How does the CMOS-compatible control pin function?
The CMOS-compatible control pin can disable the device, reducing the current to a standby level of 150 μA.
