Overview
The AD8307AR-REEL7, produced by Analog Devices Inc., is a low-cost, monolithic demodulating logarithmic amplifier. It is available in an 8-lead SOIC package and operates over a wide frequency range from DC to 500 MHz. This amplifier is designed using the progressive compression (successive detection) technique, providing a dynamic range of 92 dB to ±3 dB law conformance and 88 dB to a tight ±1 dB error bound at all frequencies up to 100 MHz. The device is highly stable and easy to use, requiring minimal external components for operation.
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 | ±1 | dB | |
| Logarithmic Slope | 23 | 25 | 27 | mV/dB |
| Supply Voltage | 2.7 | 5.5 | V | |
| Supply Current | 7.5 | mA | ||
| Ambient Temperature Range | -40 | +85 | °C | |
| Package Type | 8-lead SOIC |
Key Features
- Complete 500 MHz monolithic demodulating logarithmic amplifier.
- Dynamic range of 92 dB to ±3 dB law conformance and 88 dB to a tight ±1 dB error bound up to 100 MHz.
- Single-supply voltage operation from 2.7 V to 5.5 V.
- Low standby current of 150 μA when disabled via a CMOS-compatible control pin.
- No significant external components required for operation.
- Available in 8-lead SOIC and PDIP packages.
- Operates over the industrial temperature range of -40°C to +85°C.
Applications
- RSSI (Received Signal Strength Indication) in wireless communication systems.
- Power detection in RF and microwave systems.
- Automatic gain control (AGC) circuits.
- Signal strength measurement in various communication devices.
- Medical and industrial instrumentation where logarithmic scaling is necessary.
Q & A
- What is the AD8307AR-REEL7 used for?
The AD8307AR-REEL7 is used as a logarithmic amplifier, particularly in applications requiring RSSI, power detection, and automatic gain control in RF and microwave systems.
- What is the frequency range of the AD8307AR-REEL7?
The AD8307AR-REEL7 operates from DC to 500 MHz.
- What is the dynamic range of the AD8307AR-REEL7?
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 is the supply voltage range for the AD8307AR-REEL7?
The supply voltage range is from 2.7 V to 5.5 V.
- How much current does the AD8307AR-REEL7 consume?
The device consumes a typical supply current of 7.5 mA.
- What is the standby current of the AD8307AR-REEL7?
The standby current is 150 μA when the device is disabled via the CMOS-compatible control pin.
- In what temperature range does the AD8307AR-REEL7 operate?
The device operates over the industrial temperature range of -40°C to +85°C.
- What package types are available for the AD8307AR-REEL7?
The device is available in 8-lead SOIC and PDIP packages.
- Does the AD8307AR-REEL7 require external components for operation?
No, the device requires minimal external components for operation.
- What are some common applications of the AD8307AR-REEL7?
Common applications include RSSI in wireless communication systems, power detection in RF and microwave systems, and automatic gain control circuits.
