Overview
The AD7880CQ, 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 specifically rated for operation between –40°C to +85°C. It features a 3 µs track/hold amplifier and a 12 µs successive-approximation ADC, making it suitable for applications requiring fast conversion times and low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Supply Voltage | +5 V |
| Operating Temperature | –40°C to +85°C |
| Conversion Time | 12 µs |
| Acquisition Time | 3 µs |
| Throughput Rate | 66 kHz |
| Power Consumption (Normal Operation) | 25 mW (typ) |
| Power Consumption (Power-Down 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 SOIC, 0.3 inch-wide DIP |
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 and 25 mW in normal operation.
- On-chip track/hold amplifier and successive-approximation ADC.
- Versatile interface logic and multiple-input-range circuit.
- Internal resistor network for accepting both unipolar and bipolar input signals.
- Fast bus access times and standard control inputs for easy interfacing with microprocessors and digital signal processors.
Applications
- Battery-powered portable systems.
- Digital signal processing.
- Speech recognition and synthesis.
- High-speed modems.
- Control and instrumentation.
- Telecommunications, audio, sonar, and radar signal processing.
Q & A
- What is the resolution of the AD7880CQ? The AD7880CQ has a resolution of 12 bits.
- What is the supply voltage for the AD7880CQ? The AD7880CQ operates from a single +5 V supply.
- What is the operating temperature range for the AD7880CQ? The AD7880CQ operates between –40°C to +85°C.
- What is the conversion time of the AD7880CQ? The conversion time is 12 µs.
- What is the acquisition time of the AD7880CQ? The acquisition time is 3 µs.
- What are the input ranges for the AD7880CQ? The input ranges are 0 V to 5 V and 0 V to 10 V.
- What is the throughput rate of the AD7880CQ? The throughput rate is 66 kHz.
- How much power does the AD7880CQ consume in normal operation? The power consumption in normal operation is typically 25 mW.
- How much power does the AD7880CQ consume in power-down mode? The power consumption in power-down mode is typically 2 mW.
- What are the package types available for the AD7880CQ? The AD7880CQ is available in 24-pin SOIC and 0.3 inch-wide DIP packages.
