描述 Description

The MAX5188 is a dual 8-bit, alternate-phase-update,current-output digital-to-analog converter (DAC)designed for superior performance in systems requiringanalog signal reconstruction with low distortion andlow-power operation. The MAX5191 provides equalspecifications, with on-chip output resistors for voltage-output operation. Both devices are designed for 10pV-sglitch operation to reduce distortion and minimizeunwanted spurious signal components at the output. Anon-board +1.2V bandgap circuit provides a well-regulated,low-noise reference that may be disabled forexternal reference operation.
The MAX5188/MAX5191 are designed to provide a highlevel of signal integrity for the least amount of powerdissipation. Both DACs operate from a +2.7V to +3.3Vsingle supply. Additionally, these DACs have threemodes of operation: normal, low-power standby, andfull shutdown. A full shutdown provides the lowest possiblepower dissipation with a maximum shutdown currentof 1μA. A fast wake-up time (0.5μs) from standbymode to full DAC operation allows for power conservationby activating the DACs only when required.
The MAX5188/MAX5191 are available in a 28-pin QSOPpackage and are specified for the extended (-40°C to+85°C) temperature range. For pin-compatible 10-bitversions, refer to the MAX5182/MAX5185 data sheet.

特性 Features

? +2.7V to +3.3V Single-Supply Operation
? Wide Spurious-Free Dynamic Range: 70dB at fOUT = 2.2MHz
? Fully Differential Outputs for Each DAC
? ±0.5% FSR Gain Mismatch Between DAC Outputs
? Low-Current Standby or Full Shutdown Modes
? Internal +1.2V Low-Noise Bandgap Reference
? Small 28-Pin QSOP Package

應(yīng)用 Application

? 任意波形發(fā)生器(AWG)
? 數(shù)字信號處理(DSP)
? 成像
? 信號重建

簡介

MAX5191屬于集成電路（IC）的數(shù)模轉(zhuǎn)換器（DAC）。由制造生產(chǎn)的MAX5191數(shù)模轉(zhuǎn)換器（DAC）數(shù)模轉(zhuǎn)換器（DAC、D/A、D2A 或 D 轉(zhuǎn) A）可將數(shù)字信號轉(zhuǎn)換為緩沖或無緩沖的模擬電壓或電流。DAC 架構(gòu)是否適合特定應(yīng)用，要取決于分辨率和采樣頻率。DAC 通常用于音樂播放器，將數(shù)字?jǐn)?shù)據(jù)流轉(zhuǎn)換為模擬音頻流。它們還用于電視和手機(jī)，將數(shù)字視頻數(shù)據(jù)轉(zhuǎn)換為模擬視頻信號，再連接到屏幕驅(qū)動器，以顯示單色或彩色圖像。