Overview
The AD678SD/883B is a 12-bit monolithic analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD678 series and is designed to be a complete, multipurpose ADC. It includes a sample-hold amplifier (SHA), a microprocessor-compatible bus interface, a voltage reference, and clock generation circuitry. The AD678SD/883B is fabricated using Analog Devices' BiMOS process, combining low-power CMOS logic with high-precision, low-noise bipolar circuits. This ADC is specified for both ac (dynamic) and dc parameters, making it suitable for various signal processing and measurement applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | 200 kSPS |
| Input Full-Scale Range | 10 V |
| Full Power Bandwidth | 1 MHz |
| Full Linear Bandwidth | 500 kHz |
| Input Impedance | 10 MΩ |
| Supply Voltage | +5 V, ±12 V |
| Power Dissipation | 560 mW (typ) |
| Package | 28-pin Side-Brazed CerDIP |
| Operating Temperature Range | -55°C to +125°C |
Key Features
- Microprocessor-compatible bus interface with 16-bit or 8-bit bus options.
- Data format in straight binary for unipolar mode and two's complement binary for bipolar mode.
- Laser-trimmed thin-film resistors for high accuracy.
- Recursive subranging algorithm with error correction and flash converter circuitry for high speed and resolution.
- High input impedance allows direct connection to unbuffered sources without signal degradation.
- Screening to MIL-STD-883C Class B available.
Applications
The AD678SD/883B is suitable for a variety of applications, including signal processing, measurement systems, and any environment requiring high-precision analog-to-digital conversion. Its specifications for both ac and dc parameters make it versatile for use in dynamic signal processing as well as precise measurement tasks.
Q & A
- What is the resolution of the AD678SD/883B ADC?
The AD678SD/883B has a resolution of 12 bits. - What is the sampling rate of the AD678SD/883B?
The sampling rate is 200 kSPS. - What is the full-scale input range of the AD678SD/883B?
The full-scale input range is 10 V. - What is the full power bandwidth of the AD678SD/883B?
The full power bandwidth is 1 MHz. - What is the input impedance of the AD678SD/883B?
The input impedance is 10 MΩ. - What are the supply voltage requirements for the AD678SD/883B?
The AD678SD/883B operates from +5 V and ±12 V supplies. - How much power does the AD678SD/883B typically dissipate?
The AD678SD/883B typically dissipates 560 mW. - In what package is the AD678SD/883B available?
The AD678SD/883B is available in a 28-pin Side-Brazed CerDIP package. - Is the AD678SD/883B screened to any military standards?
Yes, the AD678SD/883B is screened to MIL-STD-883C Class B. - What data formats does the AD678SD/883B support?
The AD678SD/883B supports straight binary for unipolar mode and two's complement binary for bipolar mode.
