Key facts
- Brand
- Analog Devices
- Model
- AD7861
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-09
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Analog Devices AD7861 11‑Bit Simultaneous Sampling A/D Converter Datasheet
The AD7861 is a multichannel simultaneous‑sampling analog‑to‑digital converter designed for motor‑control and three‑phase power applications. It provides four analog inputs (VIN1, VIN2, VIN3, and AUX0‑AUX3) that can be sampled at the same time, preserving phase information, and offers flexible channel sequencing.
Key features include an 11‑bit resolution, internal 2.5 V reference, 5 V single‑supply operation, conversion times as low as 3.2 µs per channel, and a 6.25–12.5 MHz operating clock range. The device interfaces via a 12‑bit parallel bus compatible with Analog Devices DSPs and includes extensive register‑based I/O for easy integration.
Analog Devices AD7861 specifications
| Resolution | 11 Bits |
|---|---|
| Internal Reference Voltage | 2.5 V ±5% |
| Supply Voltage | +5 V ±5% |
| Operating Clock Range | 6.25–12.5 MHz |
| Power Consumption (IDD) | 10 mA max |
| Signal‑to‑Noise Ratio | 60 dB min |
| Total Harmonic Distortion | –60 dB max |
Source: Analog Devices AD7861 11‑Bit Simultaneous Sampling A/D Converter Datasheet
All Analog Devices AD7861 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What supply voltage does the AD7861 require?
The AD7861 operates from a single 5 V supply (VDD) with a tolerance of ±5 %.
From: Analog Devices AD7861 11‑Bit Simultaneous Sampling A/D Converter Datasheet
How many channels can be sampled simultaneously?
The AD7861 can sample up to four channels at the same time using its built‑in sample‑and‑hold amplifier.
What supply voltage does the AD7861 require?
It operates from a single +5 V supply and includes an internal 2.5 V reference.