Overview
The AD585JPZ-REEL7 is a high-speed, precision sample-and-hold amplifier produced by Analog Devices Inc. This component is part of the AD585 series, which is designed to provide high performance in various data acquisition systems. The AD585JPZ-REEL7 is particularly suited for applications requiring fast acquisition times, low sample-to-hold offset, and minimal droop.
The device integrates a high-performance operational amplifier, an ultralow leakage analog switch, and a FET input integrating amplifier. It also includes an internal holding capacitor and matched application resistors, enhancing its precision and flexibility.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Acquisition Time (10 V Step to 0.01%) | 3 | 3 | 3 | µs |
| Acquisition Time (20 V Step to 0.01%) | 5 | 5 | 5 | µs |
| Aperture Time (20 V p-p Input, HOLD 0 V) | 35 | 35 | 35 | ns |
| Aperture Jitter (20 V p-p Input, HOLD 0 V) | 0.5 | 0.5 | 0.5 | ns |
| Settling Time (20 V p-p Input, HOLD 0 V, to 0.01%) | 0.5 | 0.5 | 0.5 | µs |
| Droop Rate | 1 | 1 | 1 | mV/ms |
| Operating Temperature Range | 0°C | 70°C | °C | |
| Package Type | 20-pin PLCC |
Key Features
- High-Speed Acquisition: The AD585JPZ-REEL7 can acquire a signal to ±0.01% in 3 µs for a 10 V step and 5 µs for a 20 V step.
- Low Sample-to-Hold Offset: The device has a maximum sample-to-hold offset of 3 mV.
- Low Droop Rate: The droop rate is less than 1 mV/ms, ensuring stable output over time.
- Aperture Jitter: The high-speed analog switch exhibits an aperture jitter of 0.5 ns, enabling precise sampling of high-frequency signals.
- Flexible Packaging: Available in a 20-pin PLCC package, suitable for surface-mount applications.
- MIL-STD-883 Compliance: Versions of the AD585 are compliant with MIL-STD-883, ensuring reliability in military and aerospace applications.
Applications
- Data Acquisition Systems: Ideal for high-speed 10- and 12-bit data acquisition systems where fast acquisition time and low sample-to-hold offset are critical.
- Successive-Approximation A/D Converters: Compatible with successive-approximation A/D converters such as AD573, AD574A, AD674A, AD7572, and AD7672.
- Analog Delay & Storage: Suitable for applications requiring analog delay and storage, such as peak amplitude measurements.
- Military and Aerospace: Given its MIL-STD-883 compliance, it is also used in military and aerospace applications where high reliability is essential.
Q & A
- What is the acquisition time of the AD585JPZ-REEL7 for a 10 V step?
The acquisition time is 3 µs for a 10 V step to 0.01% accuracy.
- What is the maximum sample-to-hold offset of the AD585JPZ-REEL7?
The maximum sample-to-hold offset is 3 mV.
- What is the aperture jitter of the AD585JPZ-REEL7?
The aperture jitter is 0.5 ns.
- What is the operating temperature range of the AD585JPZ-REEL7?
The operating temperature range is from 0°C to 70°C.
- In what package is the AD585JPZ-REEL7 available?
The AD585JPZ-REEL7 is available in a 20-pin PLCC package.
- Is the AD585JPZ-REEL7 compliant with MIL-STD-883?
Yes, versions of the AD585 are compliant with MIL-STD-883.
- What are some typical applications of the AD585JPZ-REEL7?
Typical applications include high-speed data acquisition systems, successive-approximation A/D converters, analog delay and storage, and military and aerospace applications.
- How can the droop rate be reduced in the AD585JPZ-REEL7?
The droop rate can be reduced by adding a larger external hold capacitor.
- What is the input capacitance of the AD585JPZ-REEL7 at 1 MHz?
The input capacitance is 10 pF at 1 MHz.
- What is the power supply rejection ratio in sample mode for the AD585JPZ-REEL7?
The power supply rejection ratio in sample mode is 70 dB.
