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16-Bit DACs with 16-Channel Sample-and-Hold Outputs

16-Bit DACs with 16-Channel Sample-and-Hold Outputs for Applications Where a High Number of Programmable Voltages are Required

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • Integrated 16-Bit DAC and 16-Channel SHA with SRAM and Sequencer
  • 16 Voltage Outputs
  • 0.005% Output Linearity
  • 200µV Output Resolution
  • Flexible Output Voltage Range
  • Remote Ground Sensing
  • Fast Sequential Loading: 1.3µs per Register
  • Burst and Immediate Mode Addressing
  • No External Components Required for Setting Gain and Offset
  • Integrated Output Clamp Diodes
  • Three Output Impedance Options
    • MAX5621 (50Ω), MAX5622 (500Ω), and MAX5623 (1kΩ)

Applications/Uses

  • Automated Test Equipment (ATE)
  • Industrial Process Controls
  • Instrumentation
  • MEMS Mirror Servo Control

Description

The MAX5621/MAX5622/MAX5623 are 16-bit digital-to-analog converters (DACs) with 16 sample-and-hold (SHA) outputs for applications where a high number of programmable voltages are required. These devices include a clock oscillator and a sequencer that updates the DAC with codes from an internal SRAM. No external components are required to set offset and gain.

The MAX5621/MAX5622/MAX5623 feature a -4.5V to +9.2V output voltage range. Other features include a 200µV/step resolution, with output linearity error, typically 0.005% of full-scale range (FSR). The 100kHz refresh rate updates each SHA every 320µs, resulting in negligible output droop. Remote ground sensing allows the outputs to be referenced to the local ground of a separate device.

These devices are controlled through a 20MHz SPI™/QSPI™/MICROWIRE™-compatible 3-wire serial interface. Immediate update mode allows any channel's output to be updated within 20µs. Burst Mode® allows multiple values to be loaded into memory in a single, high-speed data burst. All channels are updated within 330µs after data has been loaded. Each device features an output clamp and output resistors for filtering. The MAX5621 features a 50Ω output impedance and is capable of driving up to 250pF of output capacitance. The MAX5622 features a 500Ω output impedance and is capable of driving up to 10nF of output capacitance. The MAX5623 features a 1kΩ output impedance and is capable of driving up to 10nF of output capacitance. The MAX5621/MAX5622/MAX5623 are available in 64-pin TQFP (12mm x 12mm) and 68-pin thin QFN (10mm x 10mm) packages.

Simplified Block Diagram

MAX5621, MAX5622, MAX5623: Functional Block Diagram MAX5621, MAX5622, MAX5623: Functional Block Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.