Overview
The AD602AR, produced by Analog Devices Inc., is a dual-channel, low noise, wideband variable gain amplifier. It is part of the X-AMP® series and is optimized for applications requiring precise gain, low noise, and wide bandwidth, particularly in ultrasound imaging systems. However, its versatility makes it suitable for various other applications such as high-performance audio and RF AGC systems, and signal measurement.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Range | –10 dB to +30 dB | dB |
| Input Noise Spectral Density | 1.4 nV/√Hz | nV/√Hz |
| -3 dB Bandwidth | 35 MHz | MHz |
| Signal-to-Noise Ratio (SNR) | Typically 86 dB (1 V rms output, 1 MHz noise bandwidth) | dB |
| Total Harmonic Distortion (THD) | Typically -60 dBc (±1 V sinusoidal output at 10 MHz) | dBc |
| Supply Voltage | ±4.75 V to ±5.25 V | V |
| Quiescent Current per Channel | 11 mA (typical), 14 mA (maximum) | mA |
| Operating Temperature | –40°C to +85°C | °C |
| Package | 16-lead SOIC | |
| Slew Rate | 275 V/µs | V/µs |
Key Features
- Low input noise spectral density of 1.4 nV/√Hz.
- Wide bandwidth of 35 MHz, essentially independent of gain.
- High signal-to-noise ratio (SNR), typically 86 dB for a 1 V rms output and 1 MHz noise bandwidth.
- Low total harmonic distortion (THD) of -60 dBc for a ±1 V sinusoidal output at 10 MHz.
- Independent gain control interfaces with a scale factor of 32 dB/V.
- Fast response time of less than 1 µs for the gain control interface.
- TTL- and CMOS-compatible gating control input for each channel.
- Ability to drive 100 Ω load impedances with low distortion.
- MIL-STD-883 compliant and DESC versions available.
Applications
- Ultrasound and sonar time-gain controls.
- High-performance audio and RF AGC systems.
- Signal measurement systems.
- Any application requiring precise gain, low noise, and wide bandwidth.
Q & A
- What is the gain range of the AD602AR?
The gain range of the AD602AR is from –10 dB to +30 dB.
- What is the input noise spectral density of the AD602AR?
The input noise spectral density is 1.4 nV/√Hz.
- What is the -3 dB bandwidth of the AD602AR?
The -3 dB bandwidth is 35 MHz.
- What is the typical signal-to-noise ratio (SNR) of the AD602AR?
The typical SNR is 86 dB for a 1 V rms output and 1 MHz noise bandwidth.
- What is the total harmonic distortion (THD) of the AD602AR?
The THD is typically -60 dBc for a ±1 V sinusoidal output at 10 MHz.
- What is the supply voltage range for the AD602AR?
The supply voltage range is ±4.75 V to ±5.25 V.
- What is the quiescent current per channel for the AD602AR?
The quiescent current per channel is typically 11 mA, with a maximum of 14 mA.
- What is the operating temperature range for the AD602AR?
The operating temperature range is –40°C to +85°C.
- What package types are available for the AD602AR?
The AD602AR is available in a 16-lead SOIC package.
- Is the AD602AR MIL-STD-883 compliant?
