The LTC ®1454/LTC1454L are complete single supply, dual rail-to-rail voltage output, 12-bit digital-to-analog converters (DACs) in a 16-lead SO package. They include an output buffer amplifier with variable gain (×1 or ×2) and an easy-to-use 3-wire cascadable serial interface. The LTC1454 has an onboard reference of 2.048V and a full-scale output of 4.095V in a ×2 gain configuration. It operates from a single 4.5V to 5.5V supply. The LTC1454L has an onboard 1.22V reference and a full-scale output of 2.5V in a ×2 gain configuration. It operates from a single 2.7V to 5.5V supply.
The LTC1454 (4.5 V–5.5 V supply) and LTC1454L (2.7 V–5.5 V supply) are complete single‑supply, dual‑channel 12‑bit digital‑to‑analog converters. They feature buffered true rail‑to‑rail outputs, an internal voltage reference (2.048 V for LTC1454, 1.22 V for LTC1454L), and a 3‑wire cascable serial interface for programming gain and output values.
Typical applications include industrial process control, automatic test equipment, and cellular telephones where low power, high accuracy, and single‑supply operation are required. The devices are offered in a 16‑lead SO package and support daisy‑chaining of multiple converters.
| Resolution | 12 bits |
|---|---|
| Supply Voltage (LTC1454) | 4.5 V to 5.5 V |
The LTC1454 operates from a single positive supply of 4.5 V to 5.5 V.
The device is offered in a 16‑lead plastic small‑outline (SO) package.
It uses a 3‑wire cascable serial interface with pins CLK, DI (Diy), and CS/LD.