Overview
The AD8306AR-REEL7, produced by Analog Devices Inc., is a complete IF limiting amplifier designed to provide an accurate logarithmic (decibel) measure of the input signal, known as the RSSI (Received Signal Strength Indicator) function. This device is part of Analog Devices' RF and Microwave product line and is particularly useful in applications requiring precise signal strength measurement over a wide dynamic range.
Key Specifications
| Parameter | Value |
|---|---|
| Dynamic Range | Wide dynamic range for accurate signal strength measurement |
| Gain per Stage | 12.04 dB (×4) per stage |
| Total Gain | 72 dB typical |
| Bandwidth | Small-signal –3 dB bandwidth of 850 MHz |
| Input Interface | |
| Output Stage | Programmable-output, fully differential open-collector outputs |
| Supply Current | Nominally 16 mA at TA = 27°C, varies with temperature (PTAT) |
| Enable/Disable | CMOS-compatible enable/disable at ENBL (Pin 8) |
| Package | Reel packaging for automated assembly |
Key Features
- Accurate logarithmic (decibel) measurement of the input signal (RSSI function)
- Six main amplifier/limiter stages with a gain of 12.04 dB each
- Fully differential input and output stages
- Programmable-output and programmable-gain final limiter section
- Low temperature-coefficient resistors and high linearity under large-signal conditions
- CMOS-compatible enable/disable interface
- Low power consumption with sleep current of much less than 1 µA when disabled
Applications
The AD8306AR-REEL7 is suitable for various RF and microwave applications, including:
- Wireless communication systems requiring accurate signal strength measurement
- Radar systems and other military communications
- Test and measurement equipment
- Cellular base stations and other wireless infrastructure
- Any system needing precise IF limiting and signal strength indication
Q & A
- What is the primary function of the AD8306AR-REEL7?
The primary function is to provide an accurate logarithmic (decibel) measure of the input signal, known as the RSSI function. - What is the gain per stage of the AD8306AR-REEL7?
The gain per stage is 12.04 dB (×4). - What is the total gain of the AD8306AR-REEL7?
The total gain is 72 dB typical. - What is the bandwidth of the AD8306AR-REEL7?
The small-signal –3 dB bandwidth is 850 MHz. - How is the input interface of the AD8306AR-REEL7 configured?
The input interface is fully differential and can be driven from either single-sided or balanced inputs. - Can the AD8306AR-REEL7 be enabled or disabled?
Yes, it can be enabled or disabled via a CMOS-compatible level at the ENBL (Pin 8). - What is the typical supply current of the AD8306AR-REEL7?
The typical supply current is nominally 16 mA at TA = 27°C. - How does the AD8306AR-REEL7 handle temperature variations?
The supply current varies in direct proportion to the absolute temperature (PTAT). - What is the sleep current of the AD8306AR-REEL7 when disabled?
The sleep current is much less than 1 µA. - In what type of applications is the AD8306AR-REEL7 commonly used?
It is commonly used in wireless communication systems, radar systems, test and measurement equipment, and cellular base stations.
