Overview
The AD783JRZ is a high-speed, monolithic sample-and-hold amplifier (SHA) produced by Analog Devices Inc. This component is designed to provide high-speed sampling with 12-bit accuracy, making it suitable for use in high-resolution analog-to-digital conversion systems. The AD783JRZ is self-contained, including an on-chip hold capacitor, and requires no external components or adjustments to perform its sampling function. It features a proprietary self-correcting architecture that compensates for internal errors such as amplifier gain, offset, and charge injection errors, ensuring accurate signal holding in the hold mode.
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 | -55 | - | 70 | °C |
Key Features
- High-speed sampling with acquisition times as low as 250 ns to 0.01% and 200 ns to 0.1% for a 5 V step input.
- Self-contained design with an on-chip hold capacitor, requiring no external components or adjustments.
- Proprietary self-correcting architecture to compensate for internal errors such as amplifier gain, offset, and charge injection errors.
- Compatible with high-resolution analog-to-digital converters (ADCs) like the AD671 and AD7586.
- Fast hold settling time and good output drive capability, suitable for multichannel data acquisition systems.
- Low droop rate and minimal feedthrough, ensuring stable held output signals.
Applications
- High-resolution analog-to-digital conversion systems.
- Multichannel data acquisition systems requiring high throughput rates.
- High-speed, high-resolution ADCs such as the AD671 and AD7586.
- General-purpose sampling and holding applications where high accuracy and speed are critical.
Q & A
- What is the typical acquisition time of the AD783JRZ?
The typical acquisition time of the AD783JRZ is 250 ns to 0.01% and 200 ns to 0.1% for a 5 V step input. - Does the AD783JRZ require external components or adjustments?
No, the AD783JRZ is self-contained and includes an on-chip hold capacitor, requiring no external components or adjustments. - What is the full power bandwidth of the AD783JRZ?
The full power bandwidth of the AD783JRZ is 2 MHz. - What is the operating voltage range of the AD783JRZ?
The operating voltage range of the AD783JRZ is ±4.75 V to ±5.25 V. - What is the temperature range for specified performance of the AD783JRZ?
The specified performance temperature range for the AD783JRZ is from -55°C to 70°C. - How much supply current does the AD783JRZ typically consume?
The AD783JRZ typically consumes 9.5 mA to 17 mA of supply current. - What is the droop rate of the AD783JRZ?
The droop rate of the AD783JRZ is 0.02 µV/µs to 1 µV/µs. - Is the AD783JRZ compatible with high-resolution ADCs?
Yes, the AD783JRZ is compatible with high-resolution ADCs such as the AD671 and AD7586. - What is the aperture jitter of the AD783JRZ at +25°C?
The aperture jitter of the AD783JRZ at +25°C is 20 ps to 50 ps. - How does the AD783JRZ correct for internal errors?
The AD783JRZ uses a proprietary self-correcting architecture to compensate for internal errors such as amplifier gain, offset, and charge injection errors.
