Overview
The AD600JNZ, produced by Analog Devices Inc., is a dual-channel, low noise, wideband variable gain amplifier. This component is optimized for applications requiring precise gain, low noise and distortion, and wide bandwidth, particularly in ultrasound imaging systems. However, its versatility makes it suitable for a wide range of applications beyond medical imaging.
The AD600JNZ features Analog Devices' proprietary X-AMP® circuit, which includes a variable attenuator followed by a high-speed fixed gain amplifier. This design ensures accurate and stable gain control, independent of the input signal level.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Range | 0 dB to +40 dB | dB |
| Maximum Gain | 41.07 dB | dB |
| -3 dB Bandwidth | 35 MHz | MHz |
| Input Noise Spectral Density | 1.4 nV/√Hz | nV/√Hz |
| Signal-to-Noise Ratio (SNR) | Typically 76 dB (1 V rms output, 1 MHz noise bandwidth) | dB |
| Group Delay Change vs. Gain | < ±2 ns | ns |
| Output Impedance | 2 Ω (f ≤ 10 MHz) | Ω |
| Peak Output Voltage | ±2.5 V (into 500 Ω load), ±1 V (into 100 Ω load) | V |
| Supply Voltage Range | ±4.75 V to ±5.25 V | V |
| Operating Temperature Range | 0°C to 70°C (J Grade) | °C |
| Package Type | 16-Lead PDIP, 16-Lead SOIC |
Key Features
- Low Noise and Distortion: The AD600JNZ features a low input noise spectral density of 1.4 nV/√Hz, ensuring high signal integrity.
- Wideband Operation: The amplifier has a -3 dB bandwidth of 35 MHz, making it suitable for high-frequency applications.
- Precise Gain Control: The gain is directly proportional to the control voltage, with a scale factor of 32 dB/V, and is accurately calibrated and stable over supply and temperature variations.
- High Speed and Low Distortion: Each channel can drive 100 Ω load impedances with low distortion, and the total harmonic distortion for a ±1 V sinusoidal output at 10 MHz is typically -60 dBc.
- Independent Gating Facility: Each channel has an independent gating facility that can block signal transmission and set the DC output level to within a few millivolts of the output ground.
- TTL- and CMOS-Compatible Inputs: The gating control input and logic inputs are compatible with both TTL and CMOS logic levels.
Applications
- Ultrasound Imaging Systems: Optimized for use in ultrasound imaging, the AD600JNZ provides the necessary precision and low noise for high-quality imaging.
- Medical Equipment: Suitable for various medical applications requiring precise gain control and low noise.
- Test and Measurement Equipment: Ideal for applications needing wideband, low noise amplification such as signal generators and analyzers.
- Industrial Automation: Can be used in industrial control systems where precise signal amplification is required.
- Aerospace and Defense: The MIL-STD-883 compliant versions (AD600S/AD602S) are suitable for military and aerospace applications.
Q & A
- What is the gain range of the AD600JNZ?
The gain range of the AD600JNZ is from 0 dB to +40 dB.
- What is the maximum bandwidth of the AD600JNZ?
The -3 dB bandwidth of the AD600JNZ is nominally 35 MHz.
- What is the input noise spectral density of the AD600JNZ?
The input noise spectral density is 1.4 nV/√Hz.
- What is the signal-to-noise ratio (SNR) of the AD600JNZ?
The SNR is typically 76 dB for a 1 V rms output and a 1 MHz noise bandwidth.
- Can the AD600JNZ drive low impedance loads?
Yes, each channel can drive 100 Ω load impedances with low distortion.
- What is the operating temperature range of the AD600JNZ?
The operating temperature range is from 0°C to 70°C for the J Grade.
- Is the AD600JNZ compatible with TTL and CMOS logic levels?
Yes, the gating control input and logic inputs are TTL- and CMOS-compatible.
- What is the maximum output voltage of the AD600JNZ?
The peak specified output is ±2.5 V minimum into a 500 Ω load or ±1 V into a 100 Ω load.
- Does the AD600JNZ have an independent gating facility?
Yes, each channel has an independent gating facility that can block signal transmission and set the DC output level.
- What are the available package types for the AD600JNZ?
The AD600JNZ is available in 16-Lead PDIP and 16-Lead SOIC packages.
