AD561 is a 10-bit monolithic D/A converter from Analog Devices that combines a high-stability voltage reference on a single monolithic chip. Using ten precision high-speed current-steering switches, a control amplifier, voltage reference, and laser-trimmed thin-film SiCr resistor network, the device produces a fast, accurate analog output current.
The AD561 integrates a 10‑bit digital‑to‑analog converter, a buried‑Zener voltage reference and laser‑trimmed R‑2R ladder on a single monolithic chip. It provides a fast, accurate current output with selectable unipolar (0 V to +10 V) or bipolar (‑2 V to +10 V) voltage ranges.
Four performance grades are offered: AD561J/K (0 °C to +70 °C) and AD561S/T (‑55 °C to +125 °C). Versions are available in 16‑pin DIP (plastic or ceramic) and MIL‑STD‑883‑compliant packages. The device features 250 ns settling to ½ LSB, 40 MΩ output resistance, and a typical temperature coefficient of 15 ppm/°C for the K/T grades.
| Resolution | 10 Bits |
|---|---|
| Settling Time | 250 ns to ½ LSB |
| Output Voltage Compliance | -2 V to +10 V |
| Operating Temperature Range (J/K grades) | 0 °C to +70 °C |
| Operating Temperature Range (S/T grades) | -55 °C to +125 °C |
The AD561 settles to ½ LSB in about 250 ns for the worst‑case code transition.
The device provides an output voltage compliance from –2 V to +10 V.
The AD561 offers a true 10‑bit resolution.