The LTC1290 is a data acquisition component from Linear Technology Corporation that uses LTCMOS TM switched capacitor technology to perform either 12-bit unipolar or 11-bit plus sign bipolar A/D conversions. The 8-channel input multiplexer can be configured for either single-ended or differential inputs (or combinations thereof).
The LTC1290 is a 12‑bit serial ADC with up to eight channels that can be configured for single‑ended or differential inputs. It includes a built‑in sample‑and‑hold, programmable data word length, and power‑down capability for low‑power applications. The device operates from a single 5 V supply and supports both MSB‑first and LSB‑first serial data formats.
The datasheet details electrical characteristics, absolute maximum ratings, package options (20‑lead PDIP, SO‑wide, and ceramic), pin functions, typical performance curves, and related parts. It also includes ordering information and recommended solder‑pad layout for the various package types.
| Resolution | 12 Bits |
|---|---|
| Fast Conversion Time | 13 µs (max over temperature) |
| Low Supply Current | 6.0 mA |
| Maximum Throughput Rate | 50 kHz |
| Analog/Reference Input Range | -0.3 V to Vg+0.3 V |
The LTC1290 provides a 12‑bit resolution.
The maximum conversion time is 13 µs over temperature.
The LTC1290 is offered in 20‑lead PDIP, 20‑lead plastic SO‑wide, and 20‑lead ceramic DIP packages.