MAX5174

低功耗、串行、12位DAC,电压输出


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说明

The MAX5174/MAX5176 low-power, serial, voltage-output, 12-bit digital-to-analog converters (DACs) feature a precision output amplifier in a space-saving 16-pin QSOP package. The MAX5174 operates from a single +5V supply, and the MAX5176 operates from a single +3V supply. Both devices draw only 280µA of supply current, which reduces to 1µA in shutdown. In addition, the programmable power-up reset feature allows for a user-selectable output voltage state of either 0 or midscale.

The 3-wire, digital, serial interface is compatible with SPI™/QSPI™, and MICROWIRE™ standards. An input register followed by a DAC register provides a double-buffered input, allowing the input and DAC registers to be updated independently or simultaneously with a 16-bit serial word. Additional features include software and hardware shutdown, shutdown lockout, a hardware clear pin, and a reference input capable of accepting DC and offset AC signals. These devices provide a programmable digital output pin for added functionality and a serial-data output pin for daisy-chaining. All logic inputs are TTL/CMOS compatible and are internally buffered with Schmitt triggers to allow direct interfacing to optocouplers.

The MAX5174/MAX5176 incorporate a proprietary on-chip circuit that keeps the output voltage virtually "glitch free," limiting the glitches to a few millivolts during power-up. Both devices are available in 16-pin QSOP packages and are specified for the extended (-40°C to +85°C) temperature range. The MAX5170/MAX5172 are pin-compatible 14-bit upgrades to the MAX5174/MAX5176. For 100% pin-compatible DACs with internal reference, see the 13-bit MAX5130/MAX5131 and the 12-bit MAX5120/MAX5121 data sheets.
MAX5174、MAX5176:功能原理框图 MAX5174,MAX5176:功能原理框图 放大+

关键特性

  • ±1 LSB INL
  • 1µA Shutdown Current
  • "Glitch Free" Output Voltage at Power-Up
  • Single-Supply Operation
    • +5V (MAX5174)
    • +3V (MAX5176)
  • Full-Scale Output Range
    • +2.048V (MAX5176, VREF = +1.25V)
    • +4.096V (MAX5174, VREF = +2.5V )
  • Rail-to-Rail Output Amplifier
  • Adjustable Output Offset
  • Low THD (-80dB) in Multiplying Operation
  • SPI/QSPI/MICROWIRE-Compatible 3-Wire Serial Interface
  • Programmable Shutdown Mode and Power-Up Reset
  • Buffered Output Capable of Driving 5kΩ || 100pF Loads
  • User-Programmable Digital Output Pin Allows Serial Control of External Components
  • 14-Bit Upgrades Available (MAX5170/MAX5172)

应用

  • µP控制系统
  • 自动测试设备(ATE)
  • 数字增益与失调控制
  • 工业过程控制
  • 运动控制
  • 远端工业控制

请查看具体的参数规格 Precision DACs (247)


Part NumberResolution
(bits)
# ChannelsOutput TypeReferenceINL
(±LSB)
InterfaceSupply Range
(V)
Supply Range
(V)
ICC
(mA)
Settling Time
(µs)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
(max)(min)(max)(max)(typ)(See Notes)
MAX5174 121Voltage- BufferedExt.
1
2
Serial - SPI4.55.50.418
QSOP/16
-40 to +85$4.70 @1k

Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。
申请可靠性报告: MAX5174 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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