Overview
The AD829JNZ, produced by Analog Devices Inc., is a high-speed, low-noise operational amplifier designed for a variety of demanding applications. It is particularly suited for professional video, high-speed data conversion, and other applications requiring high bandwidth and low noise. The AD829 offers excellent dc performance, a high slew rate of 230 V/µs, and a gain bandwidth of 750 MHz, all while consuming only 5 mA of current from the power supplies.
Key Specifications
| Parameter | Rating/Value |
|---|---|
| Supply Voltage | ±4.5 V to ±18 V |
| Quiescent Current | 5 mA (±5 V), 5.3 mA (±15 V) |
| Input Voltage Noise | 1.7 nV/√Hz |
| Input Offset Voltage | 1 mV maximum |
| Common-Mode Rejection Ratio (CMRR) | 120 dB |
| Power Supply Rejection Ratio (PSRR) | 120 dB |
| Slew Rate | 230 V/µs |
| Gain Bandwidth | 750 MHz |
| Differential Phase Error | 0.04° at 3.58 MHz and 4.43 MHz |
| Differential Gain Error | 0.02% at 3.58 MHz and 4.43 MHz |
| Operating Temperature Range | 0°C to 70°C (AD829J), -40°C to 125°C (AD829A), -55°C to 125°C (AD829S) |
Key Features
- High-speed operation with a gain bandwidth of 750 MHz and a slew rate of 230 V/µs.
- Low noise performance with an input voltage noise of 1.7 nV/√Hz.
- Excellent dc performance, including a minimum open-loop gain of 30 V/mV and a low input offset voltage of 1 mV maximum.
- External compensation pin for optimizing bandwidth for given load and power supply voltage.
- High common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) of 120 dB each.
- Fast settling time of 90 ns to 0.1%.
- Available in various packages, including 8-lead PDIP, SOIC, CERDIP, and 20-terminal LCC.
Applications
- Professional video applications, including driving reverse-terminated 50 Ω or 75 Ω cables.
- High-speed data conversion, such as input buffers for 8-bit to 10-bit ADCs and output I/V converters for high-speed DACs.
- Multichannel data acquisition systems.
- Vibration analysis and other high-speed signal processing applications.
Q & A
- What is the typical supply current of the AD829?
The AD829 typically consumes 5 mA of current from the power supplies when operated at ±5 V, and 5.3 mA at ±15 V.
- What is the input voltage noise of the AD829?
The AD829 has an input voltage noise of 1.7 nV/√Hz.
- What is the slew rate of the AD829?
The AD829 has a slew rate of 230 V/µs.
- What is the gain bandwidth of the AD829?
The AD829 has a gain bandwidth of 750 MHz.
- What are the common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) of the AD829?
Both the CMRR and PSRR of the AD829 are 120 dB.
- What is the differential phase error and differential gain error of the AD829 in video applications?
The AD829 has a differential phase error of 0.04° and a differential gain error of 0.02% at 3.58 MHz and 4.43 MHz.
- What are the operating temperature ranges for the AD829?
The operating temperature ranges are 0°C to 70°C for the AD829J, -40°C to 125°C for the AD829A, and -55°C to 125°C for the AD829S.
- What packages is the AD829 available in?
The AD829 is available in 8-lead PDIP, SOIC, CERDIP, and 20-terminal LCC packages.
- How does the external compensation pin enhance the AD829's performance?
The external compensation pin allows for optimizing the bandwidth for a given load and power supply voltage, providing exceptional versatility.
- What is the settling time of the AD829?
The AD829 has a fast settling time of 90 ns to 0.1%.
