The document introduces Analog Devices' AD606 product, a 50 MHz, 80 dB demodulating logarithmic amplifier with limiter output. The product has a wide dynamic range and low input noise, and can be used in applications such as ultrasound and sonar processing.
The document describes the AD606, a monolithic logarithmic amplifier utilizing a successive-detection technique. It provides both logarithmic and limited outputs suitable for applications such as ultrasound processing, RSSI, and wide-range signal measurement.
Key features include a dynamic range of 80 dB (extendable to 90 dB), low input noise, and operation from a single +5 V supply with CMOS-compatible power-down. The device offers adjustable output amplitude and includes on-chip low-pass filters.
| Frequency Response (Log Amp) | 50 MHz |
|---|---|
| Dynamic Range | 80 dB |
| Input Resistance (Differential) | 500 to 2,500 Ω |
| Operating Temperature Range | 0°C to +70°C |
| Supply Voltage | +5 V Single Supply |
The device provides a dynamic range of 80 dB, which can be extended to as much as 90 dB with reduced linearity.
The AD606 typically consumes 65 mW when powered up and reduces to less than 1 mW in power-down mode.