
Maxim Integrated
General Description
The MAX1277/MAX1279 are low-power, high-speed, serial-output, 12-bit, analog-to-digital converters (ADCs) with an internal reference that operates at up to 1.5Msps. These devices feature true-differential inputs, offering better noise immunity, distortion improvements, and a wider dynamic range over single-ended inputs. A standard SPI™/QSPI™/MICROWIRE™ interface provides the clock necessary for conversion. These devices easily interface with standard digital signal processor (DSP) synchronous serial interfaces.
FEATUREs
♦ 1.5Msps Sampling Rate
♦ Only 22mW (typ) Power Dissipation
♦ Only 1µA (max) Shutdown Current
♦ High-Speed, SPI-Compatible, 3-Wire Serial Interface
♦ 68.5dB S/(N + D) at 525kHz Input Frequency
♦ Internal True-Differential Track/Hold (T/H)
♦ Internal 2.048V Reference
♦ No Pipeline Delays
♦ Small 12-Pin TQFN Package
APPLICATIONs
Data Acquisition
Communications
Bill Validation
Portable Instruments
Motor Control