Overview
The AD829JR, produced by Analog Devices Inc., is a high-speed, low-noise video operational amplifier. It is designed to offer exceptional performance in various high-speed applications, particularly in professional video systems. The AD829JR features a low input voltage noise of 1.7 nV/√Hz and a current noise of 1.5 pA/√Hz, making it ideal for applications requiring high signal integrity and low noise levels. The amplifier achieves a high slew rate of 230 V/µs and a gain bandwidth product of 750 MHz, while consuming only 5 mA of current from the power supplies. Its external compensation pin allows for customization of bandwidth based on the load and power supply voltage, enhancing its versatility.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Offset Voltage | 0.2 | 1 | 1 | mV |
| Input Bias Current | 3.3 | 7 | 7 | µA |
| Input Offset Current | 50 | 500 | 500 | nA |
| Open-Loop Gain | 30 | 65 | 65 | V/mV |
| Slew Rate | 230 | V/µs | ||
| Gain Bandwidth Product | 750 | MHz | ||
| Quiescent Current | 5 | 6.5 | 6.5 | mA (±5V) |
| Power Supply Operating Range | ±4.5 | ±18 | V | |
| Operating Temperature Range | 0°C | 70°C (AD829J) | °C |
Key Features
- Low Noise Performance: Input voltage noise of 1.7 nV/√Hz and current noise of 1.5 pA/√Hz.
- High Speed: Slew rate of 230 V/µs and gain bandwidth product of 750 MHz.
- Custom Compensation: External compensation pin allows for optimization of bandwidth based on load and power supply voltage.
- Excellent DC Performance: Minimum open-loop gain of 30 V/mV into loads as low as 500 Ω, and low input offset voltage of 1 mV maximum.
- High Capacitive Load Drive Capability: Can drive heavy capacitive loads effectively.
- Multiple Package Options: Available in PDIP, CERDIP, SOIC, and LCC packages.
Applications
- Professional Video Systems: Ideal for driving reverse-terminated 50 Ω or 75 Ω cables, with excellent differential phase and gain error performance at NTSC, PAL, and SECAM color subcarrier frequencies.
- High-Speed Data Conversion: Used as an input buffer for 8-bit to 10-bit ADCs and as an output I/V converter for high-speed DACs.
- General High-Speed Amplification: Suitable for any application requiring high bandwidth, low noise, and high slew rate.
Q & A
- What is the input voltage noise of the AD829JR?
The input voltage noise of the AD829JR is 1.7 nV/√Hz.
- What is the slew rate of the AD829JR?
The slew rate of the AD829JR is 230 V/µs.
- What is the gain bandwidth product of the AD829JR?
The gain bandwidth product of the AD829JR is 750 MHz.
- What are the typical quiescent current requirements of the AD829JR?
The typical quiescent current requirements of the AD829JR are 5 mA to 6.5 mA, depending on the power supply voltage.
- What are the operating temperature ranges for the AD829JR?
The operating temperature range for the AD829J model is 0°C to 70°C, while the AD829A and AD829S models have wider temperature ranges.
- Can the AD829JR drive heavy capacitive loads?
Yes, the AD829JR can drive heavy capacitive loads effectively.
- What are the package options available for the AD829JR?
The AD829JR is available in PDIP, CERDIP, SOIC, and LCC packages.
- What are some common applications of the AD829JR?
The AD829JR is commonly used in professional video systems, high-speed data conversion, and general high-speed amplification applications.
- How does the external compensation pin enhance the AD829JR's performance?
The external compensation pin allows for customization of the bandwidth based on the load and power supply voltage, enhancing the AD829JR's versatility.
- What is the differential phase error of the AD829JR at NTSC, PAL, and SECAM color subcarrier frequencies?
The differential phase error of the AD829JR is 0.04° at these frequencies.
