MAX125CEAX集成電路（IC）的ADC/DAC-特殊用途規(guī)格書PDF中文資料

General Description

The MAX125/MAX126 are high-speed, multichannel, 14-bit data-acquisition systems (DAS) with simultaneous track/holds (T/Hs). These devices contain a 14-bit, 3μs, successive-approximation analog-to-digital converter (ADC), a +2.5V reference, a buffered reference input, and a bank of four simultaneous-sampling T/H amplifiers that preserve the relative phase information of the sampled inputs. The MAX125/MAX126 have two multiplexed inputs for each T/H, allowing a total of eight inputs. In addition, the converter is overvoltage tolerant to ±17V; a fault condition on any channel will not harm the IC. Available input ranges are ±5V (MAX125) and ±2.5V (MAX126).

Features

? Four Simultaneous-Sampling T/H Amplifiers with Two Multiplexed Inputs (eight single-ended inputs total)

? 3μs Conversion Time per Channel

? Throughput: 250ksps (1 channel)

??? 142ksps (2 channels)

??? 100ksps (3 channels)

??? 76ksps (4 channels)

? Input Range: ±5V (MAX125)

???????????????????????? ±2.5V (MAX126)

? Fault-Protected Input Multiplexer (±17V)

? ±5V Supplies

? Internal +2.5V or External Reference Operation

? Programmable On-Board Sequencer

? High-Speed Parallel DSP Interface

Applications

??? Multiphase Motor Control

??? Power-Grid Synchronization

??? Power-Factor Monitoring

??? Digital Signal Processing

??? Vibration and Waveform Analysis