Overview
The AD783JR, manufactured by Analog Devices Inc., is a high-speed sample-and-hold amplifier designed for high-accuracy sampling applications. This component is part of the AD783 series and is known for its fast acquisition time and high precision. The AD783JR is a complete, self-contained sample-and-hold amplifier that includes an on-chip hold capacitor, eliminating the need for external components or adjustments to perform the sampling function.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Acquisition Time (5 V Step to 0.01%) | 250 | 375 | ns | |
| Acquisition Time (5 V Step to 0.1%) | 200 | 350 | ns | |
| Small Signal Bandwidth | 15 | MHz | ||
| Full Power Bandwidth | 2 | MHz | ||
| Effective Aperture Delay (+25°C) | -30 | 15 | 30 | ns |
| Aperture Jitter (+25°C) | 20 | 50 | ps | |
| Hold Settling (to 1 mV, +25°C) | 150 | 200 | ns | |
| Droop Rate | 0.02 | 1 | µV/µs | |
| Feedthrough (+25°C) | -80 | dB | ||
| Operating Voltage Range | ±4.75 | ±5 | ±5.25 | V |
| Supply Current | 9.5 | 17 | mA | |
| Power Consumption | 95 | 175 | mW | |
| Temperature Range | 0 | 70 | °C |
Key Features
- High-Speed Sampling: The AD783JR offers fast acquisition times of 250 ns to 0.01% and 200 ns to 0.1% for a 5 V step input, making it suitable for high-throughput data acquisition systems.
- Self-Contained Design: The amplifier includes an on-chip hold capacitor, eliminating the need for external components or adjustments.
- Self-Correcting Architecture: The AD783JR features a proprietary circuit design that corrects for internal errors such as amplifier gain and offset errors, and charge injection errors after the hold command has been given.
- Low Aperture Jitter and Droop Rate: The component has a low aperture jitter of 20-50 ps and a droop rate of 0.02-1 µV/µs, ensuring high accuracy in hold mode.
- Compatibility with High-Resolution A-to-D Converters: The AD783JR is compatible with 12-bit A-to-D converters, making it suitable for applications requiring high resolution and speed).
Applications
- High-Speed Data Acquisition Systems: The fast acquisition time and high accuracy of the AD783JR make it ideal for multichannel data acquisition systems).
- Medical and Industrial Instrumentation: Its high precision and low noise characteristics are beneficial in medical and industrial instrumentation applications where accurate signal sampling is critical.
- Automotive and Aerospace Systems: The component's robust performance over a wide temperature range makes it suitable for use in automotive and aerospace systems.
- Test and Measurement Equipment: The AD783JR can be used in various test and measurement equipment where high-speed and high-accuracy signal sampling are required.
Q & A
- What is the acquisition time of the AD783JR for a 5 V step input to 0.01% accuracy?
The acquisition time is 250 ns to 0.01% accuracy for a 5 V step input).
- Does the AD783JR require external components for its operation?
No, the AD783JR is a self-contained sample-and-hold amplifier that includes an on-chip hold capacitor, eliminating the need for external components or adjustments).
- What is the aperture jitter of the AD783JR at +25°C?
The aperture jitter is 20-50 ps at +25°C).
- What is the droop rate of the AD783JR?
The droop rate is 0.02-1 µV/µs).
- Is the AD783JR compatible with high-resolution A-to-D converters?
Yes, the AD783JR is compatible with 12-bit A-to-D converters, making it suitable for high-resolution applications).
- What is the operating voltage range of the AD783JR?
The operating voltage range is ±4.75 V to ±5.25 V).
- What is the supply current of the AD783JR?
The supply current is 9.5-17 mA).
- What is the temperature range for specified performance of the AD783JR?
The specified performance temperature range is 0°C to 70°C).
- What type of package does the AD783JR come in?
The AD783JR comes in an 8-SOIC (0.154", 3.90mm Width) package).
- Is the AD783JR RoHS compliant?
Yes, the AD783JR is RoHS compliant).
