MAX5123 - +5V/+3V、12位、串行、加载/感应DAC，带有10ppm/°C内部电压基准

MAX5123是Maxim美信半导体公司的一款数据转换器和采样-保持电路产品，MAX5123是+5V/+3V、12位、串行、加载/感应DAC，带有10ppm/°C内部电压基准，本站介绍了MAX5123的封装应用图解、特点和优点、功能等，并给出了与MAX5123相关的Maxim元器件型号供参考。

MAX5123 - +5V/+3V、12位、串行、加载/感应DAC，带有10ppm/°C内部电压基准 - 数据转换器和采样-保持电路 - 业内首款10ppm/°C、内置基准、12位DAC - 美信半导体

产品概述

The MAX5122/MAX5123 low-power, 12-bit, voltage-output, digital-to-analog converters (DACs) feature an internal precision bandgap reference and output amplifier.The MAX5122 operates on a single +5V supply with an internal +2.5V reference, and offers a configurable output amplifier. If necessary, the user can override the on-chip, <10ppm/°C voltage reference with an external reference. The MAX5123 has the same features as the MAX5122 but operates from a single +3V supply and has an internal +1.25V precision reference. The user-accessible inverting input and output of the amplifier allows specific gain configurations, remote sensing, and high output drive capability for a wide range of force/sense applications. Both devices draw only 500µA of supply current, which reduces to 3µA in power-down mode. In addition, their power-up reset feature allows for a user-selectable initial output state of either 0V or midscale and reduces output glitches during power-up.

The serial interface is compatible with SPI™, QSPI™, and MICROWIRE™, which makes the MAX5122/MAX5123 suitable for cascading multiple devices. Each DAC has a double-buffered input organized as an input register followed by a DAC register. A 16-bit shift register loads data into the input register. The DAC register may be updated independently or simultaneously with the input register.Both devices are available in a 16-pin QSOP package and are specified for the extended-industrial (-40°C to +85°C) operating temperature range. For pin-compatible 14-bit upgrades, see the MAX5171/MAX5173 data sheet; for the pin-compatible 13-bit version, see the MAX5132/MAX5133 data sheet.

关键特性

以下关键特性由Maxim美信半导体提供：

Single-Supply Operation

+5V (MAX5122)

+3V (MAX5123)

Built-In 10ppm/°C max Precision Bandgap Reference

+2.5V (MAX5122)

+1.25V (MAX5123)

SPI/QSPI/Microwire-Compatible, 3-Wire Serial Interface

Pin-Programmable Shutdown Mode and Power-Up Reset (0 or Midscale Output Voltage)

Buffered Output Capable of Driving 5kΩ ||100pF or 4-20mA Loads

Space-Saving 16-Pin QSOP Package

Pin-Compatible 13-Bit Upgrades Available (MAX5132/MAX5133)

Pin-Compatible 14-Bit Upgrades Available (MAX5171/MAX5173)

热门应用

自动测试设备(ATE)

数字增益与失调控制

通用产品

工业过程控制

运动控制

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