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四/八通道、2线串行8位DAC,满摆幅输出

兼容于I²C、SMBus™串行接口

产品详情

主要特征

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 8
# Channels 4
Interface Serial - I2C
Output Type Voltage- Unbuffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 4.5
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.2
Settling Time (µs) (typ) 2
Package/Pins PDIP/16
SOIC (W)/16
SSOP/20
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Budgetary
Price (See Notes)
5.32
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参量

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 8
# Channels 4
Interface Serial - I2C
Output Type Voltage- Unbuffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 4.5
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.2
Settling Time (µs) (typ) 2
Package/Pins PDIP/16
SOIC (W)/16
SSOP/20
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Budgetary
Price (See Notes)
5.32

主要特征

  • Single +5V Supply
  • Simple 2-Wire Serial Interface
  • I²C Compatible
  • Outputs Swing Rail to Rail:
    • Unbuffered Outputs (MAX520)
    • Buffered Outputs (MAX521)
  • 1%-Accurate Trimmed Output Resistance (MAX520A)
  • Ultra-Low 4µA Supply Current (MAX520)
  • Individual DACs Have Separate Reference Inputs
  • Power-On Reset Clears All Latches
  • 4µA Power-Down Mode

应用/用途

  • 数字增益与失调控制
  • 通用产品
  • 工业过程控制
  • 可编程衰减器

描述

The MAX520/MAX521 are quad/octal, 8-bit voltage-output digital-to-analog converters (DACs) with simple 2-wire serial interfaces that allow communication between multiple devices. They operate from a single +5V supply and their reference input range includes both supply rails.

The MAX521 includes rail-to-rail output buffer amplifiers for reduced system size and component count when driving loads. The MAX520's unbuffered voltage outputs reduce the device's total supply current to 4µA and provide increased accuracy at low output currents.

The MAX520/MAX521 feature a serial interface and internal software protocol, allowing communication at data rates up to 400kbps. The interface, combined with the double-buffered input configuration, allows the DAC registers to be updated individually or simultaneously. In addition, the devices can be put into a low-power shutdown mode that reduces supply current to 4µA. Power-on reset ensures the DAC outputs are at 0V when power is initially applied.

The MAX520 is available in 16-pin DIP and wide SO packages, as well as a space-saving 20-pin SSOP. The MAX521 comes in 20-pin DIP and 24-pin SO packages, as well as a space-saving 24-pin SSOP.

简化框图

MAX520、MAX521:典型应用电路 MAX520、MAX521:典型应用电路 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

过滤搜索

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