MAX5318
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MAX5318

18-Bit, High-Accuracy Voltage Output DAC with Digital Gain, Offset Control, and SPI Interface

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Lowest Noise, Fast-Settling Precision 18-Bit DAC

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $24.11
Features
  • Ideal for ATE and High-Precision Instruments
    • INL Accuracy Guaranteed with ±2 LSB (max) Over Temperature
  • Fast Settling Time (3µs) with 10kΩ || 100pF Load
  • Safe Power-Up-Reset to Zero or Midscale DAC Output (Pin-Selectable)
    • Predetermined Output Device State in Power-Up and Reset in System Design
  • Negative Supply (AVSS) Option Allows Full INL and DNL Performance to 0V
  • SPI Interface Compatible with 1.8V to 5.5V Logic
  • High Integration Reduces Development Time and PCB Area
    • Buffered Voltage Output Directly Drives 2kΩ Load Rail-to-Rail
    • Integrated Reference Buffer
    • No External Amplifiers Required
  • Small 4.4mm × 7.8mm, 24-Pin TSSOP Package
Additional Details
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The MAX5318 is a high-accuracy, 18-bit, serial SPI input, buffered voltage output digital-to-analog converter (DAC) in a 4.4mm x 7.8mm, 24-lead TSSOP package. The device features ±2 LSB INL (max) accuracy and a ±1 LSB DNL (max) accuracy over the full temperature range of -40°C to +105°C.

The DAC voltage output is buffered resulting in a fast settling time of 3µs and a low offset and gain drift of ±0.5ppm/°C of FSR (typ). The force-sense output (OUT) maintains accuracy while driving loads with long lead lengths. Additionally, a separate AVSS supply, allows the output amplifier to go to 0V (GND) while maintaining full linearity performance.

The MAX5318 includes user-programmable digital gain and offset correction to enable easy system calibration.

At power-up, the device resets its outputs to zero or midscale. The wide 2.7V to 5.5V supply voltage range and integrated low-drift, low-noise reference buffer amplifier make for ease of use.

The MAX5318 features a 50MHz, 3-wire, SPI interface. The MAX5318 is available in a 24-lead TSSOP package and operates over the -40°C to +105°C temperature range.

Applications

  • Automatic Test Equipment
  • Automatic Tuning and Calibration
  • Communication Systems
  • Data-Acquisition Systems
  • Gain and Offset Adjustment
  • Medical Imaging
  • Process Control and Servo Loops
  • Programmable Voltage and Current Sources
  • Test and Measurement Equipment
Part Models 2
1ku List Price Starting From $24.11

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX5318GUG+
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MAX5318GUG+T
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Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

MAX5318EVSYS

Evaluation System for the MAX5318

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MAX5318EVSYS

Evaluation System for the MAX5318

Evaluation System for the MAX5318

Features and Benefits

  • On-Board Direct Digital Synthesis (Xilinx® Spartan®-3A FPGA)
  • On-Board Waveform Memory (1M x 24-Bit SRAM)
  • On-Board +4.096V Ultra-High-Precision Voltage Reference (MAX6126)
  • SMA Connectors for Waveform Synchronization and DAC Output
  • Proven High-Performance 18-Bit DAC PCB Layout
  • Stand-Alone and GUI Operation Modes
  • Eight Diagnostic LEDs
  • Five Pushbuttons For Functionality Tests
  • High-Speed SPI Interface
  • High-Speed USB 2.0 USB-PC Connection (Cable Included)
  • Windows XP-, Windows Vista-, and Windows 7-Compatible Software
  • RoHS Compliant
  • Fully Assembled and Tested

Product Detail

The MAX5318 evaluation kit (EV kit) provides a proven design to evaluate the MAX5318 18-bit high-accuracy voltage output DAC with digital gain and offset control. The EV kit also includes Windows XP®-, Windows Vista®-, and Windows® 7-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the IC.
The MAX5318 evaluation system (EV system) consists of the EV kit and a companion MAXUSB2XILINXMB serial interface board. The MAXUSB2XILINXMB interface board allows a PC to control the SPI interface and GPIOs using its USB port. Order the EV system for a complete PC-based evaluation of the IC.
The EV system includes an on-board direct digital synthesizer (DDS) that generates precision waveforms (sine, triangle, rising ramp, falling ramp, square, and arbitrary). The DDS clock can be selected from 375kHz to 10kHz. Waveform amplitude and offset can be controlled by the DDS or the internal controls of the IC. Arbitrary waveforms are defined by a simple CSV file that can easily be created from Excel or many other software programs. A synchronization output is also provided that indicates when a new cycle starts. In addition, all waveforms can be synchronized to an external signal.
The EV kit comes with an 18-bit MAX5318GTG+ precision DAC installed.

Applications

  • Automatic Test Equipment
  • Automatic Tuning and Calibration
  • Communication Systems
  • Data-Acquisition Systems
  • Gain and Offset Adjustment
  • Medical Imaging
  • Process Control and Servo Loops
  • Programmable Voltage and Current Sources
  • Test and Measurement Equipment
Reference Designs

Reference Designs 1

MAXREFDES74

MAXREFDES74: 18-Bit Precision Data Acquisition System

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MAXREFDES74

MAXREFDES74: 18-Bit Precision Data Acquisition System

MAXREFDES74: 18-Bit Precision Data Acquisition System

Features and Benefits

The MAXREFDES74# reference design features:

  • Power and data isolation
  • Flexible, configurable inverting or noninverting input scheme
  • Unipolar or bipolar input (ADC) and output (DAC)

MAX11156

  • 18-bit resolution with no missing codes
  • SNR: 94.4dB
  • THD: -107dB at 1kHz
  • Buffered internal or external voltage reference input
  • Internal reference with -6ppm/°C (typ) temperature coefficient
  • Single 5V supply
  • True bipolar ±5V input range

MAX5318

  • 18-bit resolution with no missing codes
  • High accuracy: ±2 LSB INL (max)
  • 3µs settling time
  • User-programmable offset and gain calibration
  • ±0.5ppm/°C (typ) offset and gain drift over temperature
  • Force/sense output
  • 50MHz SPI-compatible interface with 1.8V to 5.5V logic
View Detailed Reference Design external link

Design & Integration Tools

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