Overview
The AD606JRZ, produced by Analog Devices Inc., is a complete, monolithic logarithmic amplifier that utilizes a 9-stage 'successive-detection' technique. This device provides both logarithmic and limited outputs, making it versatile for various signal processing applications. It operates from a single +5 V supply, consuming a typical power of 65 mW, and can be enabled or disabled via a CMOS logic level voltage input with a response time of less than 5 µs. When disabled, the standby power is reduced to less than 1 mW within 5 µs.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| SIGNAL INPUT - Log Amp fMAX | AC Coupled; Sinusoidal Input | - | 50 | - | MHz |
| SIGNAL INPUT - Limiter fMAX | AC Coupled; Sinusoidal Input | - | 100 | - | MHz |
| Dynamic Range | - | - | 80 | - | dB |
| Input Resistance | Differential Input | 500 | 2,500 | - | Ω |
| Input Capacitance | Differential Input | - | 2 | - | pF |
| Limiter Flatness | -75 dBm to +5 dBm Input Signal at 10.7 MHz | -1.5 | - | 1.5 | dB |
| Output Current | At Pins 8 or 9, Proportional to VPOS, LADJ Grounded | - | 1.2 | - | mA |
| Phase Variation with Input Level | -75 dBm to +5 dBm Input Signal at 10.7 MHz | - | ±3 | - | Degrees |
| LOG (RSSI) OUTPUT - Nominal Slope | At 10.7 MHz; (0.0075 × VPOS)/dB | - | 37.5 | - | mV/dB |
| Supply Voltage Range | - | 4.5 | 5 | 5.5 | V |
| No. of Pins | - | - | 16 | - | Pins |
Key Features
- Phase stability at 10.7 MHz over an 80 dB range.
- Adjustable output amplitude.
- Low power consumption: 65 mW typical at +5 V single supply operation.
- CMOS-compatible power-down to 325 µW typical.
- Enable/disable time of less than 5 µs.
- Logarithmic output with a three-pole post-demodulation low-pass filter.
- Limiter output provides a hard-limited signal as a differential current of ±1.2 mA.
- Transition times of 1.5 ns.
Applications
- Ultrasound and sonar processing.
- Phase-stable limiting amplifier up to 100 MHz.
- Received Signal Strength Indicator (RSSI).
- Wide range signal and power measurement.
Q & A
- What is the AD606JRZ used for? The AD606JRZ is used for various signal processing applications, including ultrasound and sonar processing, phase-stable limiting amplification, and received signal strength indication.
- What is the supply voltage range of the AD606JRZ? The supply voltage range of the AD606JRZ is from 4.5 V to 5.5 V.
- How much power does the AD606JRZ typically consume? The AD606JRZ typically consumes 65 mW of power at a +5 V supply.
- What is the dynamic range of the AD606JRZ? The dynamic range of the AD606JRZ is 80 dB.
- What is the maximum frequency for the limiter output of the AD606JRZ? The maximum frequency for the limiter output is 100 MHz.
- How quickly can the AD606JRZ be enabled or disabled? The AD606JRZ can be enabled or disabled within less than 5 µs.
- What is the phase stability of the AD606JRZ at 10.7 MHz? The phase stability is within ±3° at 10.7 MHz for signals from –75 dBm to +5 dBm.
- What type of output does the limiter provide? The limiter output provides a hard-limited signal as a differential current of ±1.2 mA.
- Can the AD606JRZ operate at low input frequencies? Yes, by adding external capacitors to the filters, the AD606JRZ can operate at input frequencies as low as a few hertz.
- What is the typical standby power consumption when the AD606JRZ is disabled? The typical standby power consumption is less than 1 mW when the device is disabled.
