Overview
The AD8307ARZ-REEL, produced by Analog Devices Inc., is a low-cost, monolithic demodulating logarithmic amplifier. It operates over a wide frequency range from DC to 500 MHz and is designed using the progressive compression (successive detection) technique. This amplifier is highly stable, easy to use, and requires no significant external components. It can be powered by a single-supply voltage of 2.7 V to 5.5 V, consuming 7.5 mA of current. The device also features a fast-acting CMOS-compatible control pin that can disable it to a standby current of 150 μA.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Range (±3 dB Error) | - | - | 92 dB | - |
| Input Range (±1 dB Error) | - | - | 88 dB | - |
| Logarithmic Conformance (f ≤ 100 MHz) | ±0.3 dB | ±1 dB | - | - |
| Logarithmic Slope | 23 mV/dB | 25 mV/dB | 27 mV/dB | - |
| Supply Voltage | 2.7 V | - | 5.5 V | - |
| Supply Current | - | 7.5 mA | - | - |
| Standby Current | - | 150 μA | - | - |
| Operating Temperature | -40°C | - | +85°C | - |
| Package Type | - | - | 8-lead SOIC-N, 8-lead PDIP | - |
Key Features
- Highly stable scaling over temperature
- Fully differential DC-coupled signal path
- Power-up time of 100 ns
- Sleep current of 150 μA
- 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 operating frequency range of the AD8307ARZ-REEL? The AD8307ARZ-REEL operates from DC to 500 MHz.
- What is the input range of the AD8307ARZ-REEL? The input range is 92 dB for ±3 dB error and 88 dB for ±1 dB error.
- What is the supply voltage range for the AD8307ARZ-REEL? The supply voltage range is 2.7 V to 5.5 V.
- How much current does the AD8307ARZ-REEL consume in standby mode? The standby current is 150 μA.
- What is the typical logarithmic slope of the AD8307ARZ-REEL? The typical logarithmic slope is 25 mV/dB.
- What are the common applications of the AD8307ARZ-REEL? Common applications include RSSI, transmitter antenna power measurement, low-cost radar and sonar signal processing, and network and spectrum analyzers.
- What is the power-up time of the AD8307ARZ-REEL? The power-up time is 100 ns.
- What is the input noise spectral density of the AD8307ARZ-REEL? The input noise spectral density is 1.5 nV/√Hz (typical).
- What are the package types available for the AD8307ARZ-REEL? The device is available in 8-lead SOIC-N and 8-lead PDIP packages.
- What is the operating temperature range of the AD8307ARZ-REEL? The operating temperature range is -40°C to +85°C.
