Overview
The AD7880CN, produced by Analog Devices Inc., is a high-speed, low-power, 12-bit analog-to-digital converter (ADC) designed to operate from a single +5 V supply. This component is part of the AD7880 series and is known for its fast conversion time, low power consumption, and versatile interface logic. It is fabricated using Analog Devices’ Linear Compatible CMOS (LC2MOS) process, combining precision bipolar circuits with low-power CMOS logic. The AD7880CN is available in a 24-pin, 0.3 inch-wide, plastic or hermetic dual-in-line package (DIP) as well as a small 24-lead SOIC package.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Supply Voltage | +5 V |
| Conversion Time | 12 µs |
| Acquisition Time | 3 µs |
| Throughput Rate | 66 kHz |
| Power Consumption (Normal Operation) | 25 mW typ |
| Power Consumption (Power Save Mode) | 2 mW typ |
| Signal-to-Noise Ratio (SNR) | 70 dB |
| Input Ranges | 0 V to 5 V, 0 V to 10 V |
| Package Types | 24-pin DIP, 24-lead SOIC |
| Operating Temperature Range | –40°C to +85°C |
Key Features
- Fast conversion time of 12 µs and acquisition time of 3 µs, allowing for large input signal bandwidth.
- Low power consumption with 2 mW in power-down mode, making it suitable for battery-powered and portable applications.
- On-chip track/hold amplifier and successive-approximation ADC.
- Versatile interface logic and multiple-input-range circuit.
- Fast data access time of 57 ns.
- Compact packaging options including 24-pin DIP and 24-lead SOIC.
Applications
- Battery-powered portable systems.
- Digital signal processing.
- Speech recognition and synthesis.
- High-speed modems.
- Control and instrumentation systems.
- Telecommunications, audio, sonar, and radar signal processing.
Q & A
- What is the resolution of the AD7880CN ADC?
The AD7880CN has a resolution of 12 bits. - What is the supply voltage for the AD7880CN?
The AD7880CN operates from a single +5 V supply. - What is the conversion time of the AD7880CN?
The conversion time of the AD7880CN is 12 µs. - What are the input ranges for the AD7880CN?
The AD7880CN has two unipolar input ranges: 0 V to 5 V and 0 V to 10 V. - What is the power consumption in normal operation and power save mode?
In normal operation, the power consumption is 25 mW typ, and in power save mode, it is 2 mW typ. - What is the signal-to-noise ratio (SNR) of the AD7880CN?
The SNR of the AD7880CN is 70 dB. - What are the package types available for the AD7880CN?
The AD7880CN is available in 24-pin DIP and 24-lead SOIC packages. - What is the operating temperature range for the AD7880CN?
The operating temperature range is –40°C to +85°C. - What are some typical applications of the AD7880CN?
Typical applications include battery-powered portable systems, digital signal processing, speech recognition and synthesis, high-speed modems, and control and instrumentation systems. - How does the AD7880CN interface with microprocessors and digital signal processors?
The AD7880CN features fast bus access times and standard control inputs, ensuring easy interfacing to modern microprocessors and digital signal processors.
