LTC1091/LTC1092/LTC1093/LTC1094 1-, 2-, 6- and 8-channel, 10-bit serial I/O data acquisition systems I Programmable features – unipolar/bipolar conversions – differential/single-ended multiplexer configurations I sample-and-holds I single supply 5V, 10V or ±5V operation I direct 3- or 4-wire interface to most MPU serial ports and all MPU parallel I/O ports I analog inputs common mode to supply rails I resolution: 10 bits I total unadjusted error (A grade): ±1LSB over temp I fast conversion time: 20µs I low supply current LTC1091: 3.5mA max, 1.5mA typ LTC1092/LTC1093/LTC1094: 2.5mA max, 1mA typ
The Linear Technology LTC1091‑1094 series are 10‑bit, multi‑channel A/D converters with programmable unipolar/bipolar modes, on‑chip sample‑and‑hold, and a serial interface compatible with most microprocessor ports. The devices support 1‑5 V single‑supply operation, low supply current (as low as 1 mA typ) and high‑impedance analog inputs.
The handbook provides detailed electrical characteristics, absolute maximum ratings, pin descriptions, package dimensions, typical performance graphs and example application circuits. It also lists compatible upgrade parts and ordering information.
| Resolution | 10 bits |
|---|---|
| Supply Current (LTC1091) | 3.5 mA Max, 1.5 mA Typ |
| Supply Current (LTC1092/1093/1094) | 2.5 mA Max, 1 mA Typ |
| Total Unadjusted Error (A‑grade) | +1 LSB over temperature |
| Analog Input Range | -0.05 V to VCC+0.05 V |