16-Bit, Ultra Precise, Fast Settling VOUT DAC
The LTC1821 is a 16‑bit, 4‑quadrant multiplying DAC that operates from analog supply voltages of +5 V to +15 V and supports both unipolar (0‑10 V) and bipolar (±10 V) output modes. It offers fast 2 µs settling to 0.0015 % of full scale, low‑glitch impulse (2 nV·s), and low noise (13 nV/√Hz at zero scale).
The document lists absolute maximum ratings, detailed electrical characteristics, pin descriptions, truth table, package dimensions (36‑lead SSOP), and related Linear Technology parts. Typical performance graphs illustrate settling time, glitch impulse, and linearity across supply voltages.
| Resolution | 16 bits |
|---|---|
| Settling Time (10 V step) | 2 µs to 0.0015 % FS |
| Glitch Impulse (midscale) | 2 nV·s |
| Supply Voltage Range (V+) | 4.5 V to 16.5 V |
| Package | 36‑lead Plastic SSOP (wide) |
The device settles to 0.0015 % of full scale in 2 µs for a 10 V step.
The absolute maximum total supply voltage (Vt to V7) is 36 V.
The LTC1821 is offered in a 36‑lead SSOP package.
The device achieves a low‑glitch impulse of 2 nV·s.