The AD7880 is a high speed, low power, 12-bit A/D converter which operates from a single +5 V supply. It features a 3 µs track/hold amplifier, a 12 µs successive-approximation ADC, versatile interface logic, and a multiple-input-range circuit. The part also includes a power save feature. It is suitable for battery-powered portable systems, digital signal processing, speech recognition and synthesis, high-speed modems, control and instrumentation applications.
The AD7880 is a monolithic A/D converter featuring a 3 µs track/hold amplifier and a 12 µs successive-approximation ADC. It operates from a single +5 V supply and includes an internal resistor network to accept both unipolar and bipolar input signals.
Key specifications include a total throughput time of 15 µs, allowing conversion of full power signals up to 33 kHz with a sampling frequency of 66 kHz. The device offers three user-determined input ranges (0 V to +5 V, 0 V to 10 V, and ±5 V) and features a power save mode consuming only 2 mW typical.
| Resolution | 12 Bits |
|---|---|
| Throughput Rate | 66 kHz |
| Conversion Time | 12 µs |
| Acquisition Time | 3 µs |
| Power Save Mode Consumption | 2 mW typ |
| Normal Operation Consumption | 25 mW typ |
The device operates from a single +5 V supply.
Yes, an internal resistor network allows the part to accept both unipolar and bipolar input signals.
The part features three user-determined input ranges: 0 V to +5 V, 0 V to 10 V, and ±5 V.