Overview
The AD600AR from Analog Devices Inc. is a dual-channel, low noise, wideband variable gain amplifier. It is optimized for applications requiring precise gain, low noise, and distortion, and wide bandwidth. The AD600AR is particularly suited for ultrasound imaging systems, high-performance audio and RF AGC systems, and signal measurement applications. Each independent channel provides a gain range of 0 dB to +40 dB, with a high slew rate of 275 V/μs and a wide -3 dB bandwidth of 35 MHz. The amplifier features a proprietary X-AMP circuit design, ensuring accurate and stable gain control, and it is TTL- and CMOS-compatible.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Range | 0 dB to +40 dB | |
| Input Noise Spectral Density | 1.4 nV/√Hz | |
| -3 dB Bandwidth | 35 MHz | |
| Slew Rate | 275 V/μs | |
| Signal-to-Noise Ratio (SNR) | 76 dB (1 V rms output, 1 MHz noise bandwidth) | |
| Total Harmonic Distortion (THD) | -60 dBc (RL = 200 Ω, VOUT = ±1 V peak) | |
| Group Delay Change vs. Gain | ±2 ns | |
| Group Delay Change vs. Frequency | ±2 ns (VG = 0 V, f = 1 MHz to 10 MHz) | |
| Operating Temperature Range | -40°C to +85°C | |
| Operating Voltage Range | ±4.75 V to ±5.25 V | |
| Quiescent Current per Channel | 11 mA to 14 mA | |
| Package/Case | SOIC-16 |
Key Features
- Dual-channel variable gain amplifier with independent gain control.
- High slew rate of 275 V/μs.
- Wide -3 dB bandwidth of 35 MHz.
- Low input noise spectral density of 1.4 nV/√Hz.
- Low distortion: -60 dBc THD at ±1 V output.
- Stable group delay: ±2 ns.
- Signal gating function for each amplifier.
- TTL- and CMOS-compatible logic inputs.
- Operating temperature range: -40°C to +85°C.
- Operating voltage range: ±4.75 V to ±5.25 V.
Applications
- Ultrasound and sonar time-gain controls.
- High-performance audio and RF AGC systems.
- Signal measurement.
- Industrial automation.
- Medical equipment.
- Telecommunications.
Q & A
- What is the gain range of the AD600AR? The gain range of the AD600AR is 0 dB to +40 dB.
- What is the input noise spectral density of the AD600AR? The input noise spectral density is 1.4 nV/√Hz.
- What is the -3 dB bandwidth of the AD600AR? The -3 dB bandwidth is 35 MHz.
- What is the slew rate of the AD600AR? The slew rate is 275 V/μs.
- What is the total harmonic distortion (THD) of the AD600AR? The THD is typically -60 dBc for a ±1 V peak output into a 200 Ω load.
- Is the AD600AR TTL- and CMOS-compatible? Yes, the AD600AR is TTL- and CMOS-compatible.
- What is the operating temperature range of the AD600AR? The operating temperature range is -40°C to +85°C.
- What is the operating voltage range of the AD600AR? The operating voltage range is ±4.75 V to ±5.25 V.
- Does the AD600AR have a signal gating function? Yes, each amplifier channel has an independent signal gating function.
- What are some common applications of the AD600AR? Common applications include ultrasound and sonar time-gain controls, high-performance audio and RF AGC systems, signal measurement, industrial automation, medical equipment, and telecommunications.
