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低成本、3通道、8位、电压输出DAC,串行接口

三通道、串行、电压输出DAC,SO封装

产品详情

主要特征

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 8
# Channels 3
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 1.5
Supply Range (V) (min) 4.5
Supply Range (V) (max) 5.5
ICC (mA) (max) 2.8
Settling Time (µs) (typ) 70
Package/Pins PDIP/14
SOIC (N)/14
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Budgetary
Price (See Notes)
4.41
缩小

简化框图

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参量

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 8
# Channels 3
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 1.5
Supply Range (V) (min) 4.5
Supply Range (V) (max) 5.5
ICC (mA) (max) 2.8
Settling Time (µs) (typ) 70
Package/Pins PDIP/14
SOIC (N)/14
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Budgetary
Price (See Notes)
4.41

主要特征

  • Operate from a Single +5V (MAX512) or +3V (MAX513) Supply, or from Bipolar Supplies
  • Low Power Consumption
    • 1mA Operating Current
    • <1µA Shutdown Current
  • Unipolar or Bipolar Outputs
  • 5MHz, 3-Wire Serial Interface
  • SPI, QSPI, and Microwire Compatible
  • Two Buffered, Bipolar-Output DACs (DACs A/B)
  • Independently Programmable Shutdown Mode
  • Space-Saving 14-Pin SO/DIP Packages
  • Pin and Software Reset

应用/用途

  • 数字增益与失调控制
  • 可编程衰减器
  • 可编程电流源
  • 可编程电压源
  • 射频数字调节偏置电路
  • VCO调谐

描述

The MAX512/MAX513 contain three 8-bit, voltage-output digital-to-analog converters (DAC A, DAC B, and DAC C). Output buffer amplifiers for DACs A and B provide voltage outputs while reducing external component count. The output buffer for DAC A can source or sink 5mA to within 0.5V of VDD or VSS. The buffer for DAC B can source or sink 0.5mA to within 0.5V of VDD or VSS. DAC C is unbuffered, providing a third voltage output with increased accuracy. The MAX512 operates with a single +5V ±10% supply, and the MAX513 operates with a +2.7V to +3.6V supply. Both devices can also operate with split supplies.

The 3-wire serial interface has a maximum operating frequency of 5MHz and is compatible with SPI™, QSPI™, and Microwire™. The serial input shift register is 16 bits long and consists of 8 bits of DAC input data and 8 bits for DAC selection and shutdown. DAC registers can be loaded independently or in parallel at the positive edge of CS. A latched logic output is also available for auxiliary control.

Ultra-low power consumption and small packages (14-pin DIP/SO) make the MAX512/MAX513 ideal for portable and battery-powered applications. Supply current is only 1mA, dropping to less than 1µA in shutdown. Any of the three DACs can be independently shut down. In shutdown mode, the DAC's R-2R ladder network is disconnected from the reference input, minimizing system power consumption.

简化框图

MAX512、MAX513:功能框图 MAX512、MAX513:功能框图 Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

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Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心