Overview
The AD872AJD is a 12-bit, 10 MSPS (Mega Samples Per Second) monolithic analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD872A series, which is optimized for lower noise and high performance. The AD872AJD features an on-chip track-and-hold amplifier and voltage reference, making it suitable for high-end applications requiring precise analog-to-digital conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | 10 MSPS |
| Input Type | Single-ended |
| Architecture | Pipelined, multistage differential |
| Operating Temperature Range | 0°C to +70°C (commercial), –55°C to +125°C (military) |
| Package Type | 28-lead ceramic DIP |
| Reference | On-chip reference with external reference option |
| Output Format | Twos complement binary |
| Overrange Indicator | Yes, indicates overflow condition |
Key Features
- High performance track-and-hold amplifier with low noise and high input impedance.
- Pipelined, multistage differential architecture with error correction logic to ensure 12-bit accuracy.
- On-chip voltage reference with the option to use an external reference.
- Single clock input to control all internal conversion cycles.
- Digital output in twos complement binary format with an overrange indicator.
- Pin compatibility with the AD872, allowing for interchangeable use.
- Fabricated using Analog Devices’ ABCMOS-1 process, combining high-speed bipolar and CMOS transistors.
Applications
- High-end imaging applications due to its low noise and high input impedance.
- Multiplexed systems that switch multiple signals through a single A/D converter.
- Sampling single channel inputs at frequencies up to and beyond the Nyquist rate.
- Industrial and military applications requiring high precision and reliability over a wide temperature range.
Q & A
- What is the resolution and sampling rate of the AD872AJD?
The AD872AJD has a resolution of 12 bits and a sampling rate of 10 MSPS.
- What type of architecture does the AD872AJD use?
The AD872AJD uses a pipelined, multistage differential architecture.
- What is the operating temperature range of the AD872AJD?
The operating temperature range is 0°C to +70°C (commercial) and –55°C to +125°C (military).
- What type of package does the AD872AJD come in?
The AD872AJD comes in a 28-lead ceramic DIP package.
- Does the AD872AJD have an on-chip reference, and can an external reference be used?
Yes, the AD872AJD has an on-chip reference, and an external reference can also be used.
- What is the output format of the AD872AJD?
The output format is twos complement binary.
- Does the AD872AJD have an overrange indicator?
Yes, the AD872AJD has an overrange indicator to indicate overflow conditions.
- What process is used to fabricate the AD872AJD?
The AD872AJD is fabricated using Analog Devices’ ABCMOS-1 process.
- Is the AD872AJD pin compatible with other models?
Yes, the AD872AJD is pin compatible with the AD872.
- What are some typical applications of the AD872AJD?
Typical applications include high-end imaging, multiplexed systems, and industrial/military applications.
