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14-/16-Bit, Low-Power, Buffered Output, Rail-to-Rail DACs with SPI Interface

Save Application Power and Board Space with Less than 80µA IQ and 3mm x 5mm, 8-Pin µMAX Package

Product Details

The MAX5214/MAX5216 are pin-compatible, 14-bit and 16-bit digital-to-analog converters (DACs). The MAX5214/MAX5216 are single-channel, low-power, buffered voltage-output DACs. The devices use a precision external reference applied through the high resistance input for rail-to-rail operation and low system power consumption. The MAX5214/MAX5216 accept a wide 2.7V to 5.5V supply voltage range. Power consumption is extremely low to accommodate most low-power and low-voltage applications. These devices feature a 3-wire SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface to save board space and to reduce the complexity in isolated applications. The MAX5214/MAX5216 minimize the digital noise feedthrough from input to output with SCLK and DIN input buffers powered down after completion of each serial input frame. On power-up, the MAX5214/MAX5216 reset the DAC output to zero, providing additional safety for applications that drive valves or other transducers that need to be off on power-up. The DAC output is buffered resulting in a low supply current of 80µA (max) and a low offset error of ±0.25mV. A zero level applied to the active-low CLR pin asynchronously clears the contents of the input and DAC registers and sets the DAC output to zero independent of the serial interface. The MAX5214/MAX5216 are available in an ultra-small (3mm x 5mm), 8-pin µMAX® package and are specified over the -40°C to +105°C extended industrial temperature range.

Key Features

  • Low-Power Consumption (80µA max)
  • 14-/16-Bit Resolution in a 3mm x 5mm, 8-Pin µMAX Package
  • Relative Accuracy
    • ±0.40 LSB INL (MAX5214, 14-Bit typ, ±1 LSB max)
    • ±1.2 LSB INL (MAX5216, 16-Bit typ, ±4 LSB max)
  • Guaranteed Monotonic Over All Operating Ranges
  • Low Gain and Offset Error
  • Wide 2.7V to 5.5V Supply Range
  • Rail-to-Rail Buffered Output Operation
  • Safe Power-On Reset (POR) to Zero DAC Output
  • Fast 50MHz, 3-Wire, SPI/QSPI/MICROWIRE-Compatible Serial Interface
  • Schmitt-Trigger Inputs for Direct Optocoupler Interface
  • Asynchronous Active-Low CLR Clears DAC Output to Code 0
  • High Reference Input Resistance for Power Reduction
  • Buffered Voltage Output Directly Drives 10kΩ Loads

Applications/Uses

  • 2-Wire Sensors
  • Automatic Test Equipment
  • Automatic Tuning
  • Communication Systems
  • Gain and Offset Adjustment
  • Portable Instrumentation
  • Power Amplifier Control
  • Process Control and Servo Loops
  • Programmable Voltage and Current Sources
Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 16
# Channels 1
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 3
Supply Range (V) (min) 2.7
Supply Range (V) (max) 5.25
ICC (mA) (max) 0.08
Settling Time (µs) (typ) 14
Package/Pins UMAX/8
Oper. Temp. (°C) -40 to +105
Budgetary
Price (See Notes)
$2.80 @1k

Simplified Block Diagram

MAX5214, MAX5216: Typical Operating Circuit MAX5214, MAX5216: Typical Operating Circuit Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

Description

The MAX5216 evaluation kit (EV kit) demonstrates the MAX5216 16-bit low-power, high-performance, buffered digital-to-analog converter (DAC). The EV kit includes Windows XP®-, Windows Vista®-, and Windows® 7-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX5216.

The EV kit comes with the MAX5216GUA+ installed. Contact the factory for samples of the pin-compatible MAX5214GUA+ (14-bit, low-power version).

View Details

Features

  • Windows XP-, Windows Vista-, and Windows 7-Compatible Software
  • Supports 14-Bit and 16-Bit DACs
  • On-Board Microcontroller to Generate SPI™ Commands
  • USB Powered (Cable Included)
  • Proven PCB Layout
  • Fully Assembled and Tested

Description

The MAX5216PMB1 peripheral module provides the necessary hardware to interface the MAX5216 16-bit DAC to any system that utilizes Pmod™-compatible expansion ports configurable for SPI communication. The IC is a single-channel, low-power, buffered voltage-output DAC. The reference voltage for the DAC is provided by a 2.5V output version of the MAX6029 voltage reference (0.15% initial accuracy, 30ppm/°C). Digital noise is minimized by having SPI input buffers powered down after completion of each serial input frame.

Refer to the MAX5216 IC data sheet for detailed information regarding operation of the IC.

View Details

Features

  • High-Accuracy 16-Bit DAC with On-Board Precision Voltage Reference
  • Low Gain and Offset Errors
  • Buffered Voltage Output Directly Drives 10kΩ Loads
  • Optional External Voltage Reference (Jumper Selectable)
  • 6-Pin Pmod-Compatible Connector (SPI)
  • Example Software Written in C for Portability
  • RoHS Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested

Description

Maxim Analog Essentials is a collection of peripheral modules which can plug directly into any FPGA/CPU expansion port which follows the Pmod™ standard established by Digilent, Inc. The collection includes modules containing a wide variety of commonly used analog and mixed signal functions. The modules are supported by software which includes FPGA configuration files for three popular FPGA platforms: Avnet LX-9, Digilent Nexys 3 and Avnet ZEDBoard, as well as example programs to exercise and demonstrate each module. While the example programs demonstrate the module’s functionality, they are well partitioned and documented allowing the core routines to be easily cut and pasted into your own programs. The combination of plug-in simplicity and easy software integration allows for quick migration from idea to working prototype.

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Features

  • Data Converter, Interface, Clock, Sensor, and Other Modules Included to Address Many Design Needs
  • Plug in Modules Enable Rapid Hardware Prototyping
  • Proven Software Drivers Reduce Development Time
  • FPGA Configuration Files Included to Simplify Design Effort

Description

The MAX5216LPT evaluation kit (EV kit) enables evaluation of the loop-powered 4–20mA current-loop transmitter with the fault current-limiting capabilities and Highway Addressable Remote Transducer (HART) modem input/output ready, which utilizes the MAX5216 single-channel, low-power, buffered-output, 3-wire SPI interface 16-bit DAC, the MAX6133 3ppm/°C, low-power voltage reference, the MAX9620 single-channel, zero-drift, high-efficiency op amp with RRIO, and the MAX15007 40V, ultra-low quiescent current LDO. 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 this reference design.

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Features

  • Wide 12V to 40V Input Supply Range
  • Transfer 16-Bit Digital Code to 4–20mA Loop Current
  • Offset and Gain Programmable
  • < 0.02 % FS Current Error at +25°C
  • < 0.1 % FS Current Error Over Temperature Range
  • -40°C to +105°C Temperature Range
  • 30mA ±20% Resistor-Selectable Current Limiting
  • 200µA (typ), 300µA (max) Quiescent Current
  • HART Modem Input and Output Ready
  • Direct USB Communication through the MAXQ622 Microcontroller
  • Windows XP-, Windows Vista-, and Windows 7 (32-Bit)-Compatible Software
  • SPI Interface Terminals
  • Proven PCB Layout
  • Fully Assembled and Tested

Description

The MAXWINGDEMO1# evaluation kit is a serial bus experimentation platform that builds upon the MAX32620FTHR board by adding several SPI and I2C peripherals in a featherwing form factor. The MAX32620FTHR is available separately.

The kit includes the following items:

  • MAXWINGDEMO1# Featherwing printed circuit board

View Details

Features

  • MAX44009 Optical Sensor (I2C)
  • MAX31723 Temperature Sensor (SPI)
  • MAX5216 Digital-to-Analog Convertor (SPI)
  • MAX98300 Class-D Audio Amplifier with On-Board SMD Speaker

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Support & Training

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Filtered Search

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Parameters

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 16
# Channels 1
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 3
Supply Range (V) (min) 2.7
Supply Range (V) (max) 5.25
ICC (mA) (max) 0.08
Settling Time (µs) (typ) 14
Package/Pins UMAX/8
Oper. Temp. (°C) -40 to +105
Budgetary
Price (See Notes)
$2.80 @1k

Key Features

  • Low-Power Consumption (80µA max)
  • 14-/16-Bit Resolution in a 3mm x 5mm, 8-Pin µMAX Package
  • Relative Accuracy
    • ±0.40 LSB INL (MAX5214, 14-Bit typ, ±1 LSB max)
    • ±1.2 LSB INL (MAX5216, 16-Bit typ, ±4 LSB max)
  • Guaranteed Monotonic Over All Operating Ranges
  • Low Gain and Offset Error
  • Wide 2.7V to 5.5V Supply Range
  • Rail-to-Rail Buffered Output Operation
  • Safe Power-On Reset (POR) to Zero DAC Output
  • Fast 50MHz, 3-Wire, SPI/QSPI/MICROWIRE-Compatible Serial Interface
  • Schmitt-Trigger Inputs for Direct Optocoupler Interface
  • Asynchronous Active-Low CLR Clears DAC Output to Code 0
  • High Reference Input Resistance for Power Reduction
  • Buffered Voltage Output Directly Drives 10kΩ Loads

Applications/Uses

  • 2-Wire Sensors
  • Automatic Test Equipment
  • Automatic Tuning
  • Communication Systems
  • Gain and Offset Adjustment
  • Portable Instrumentation
  • Power Amplifier Control
  • Process Control and Servo Loops
  • Programmable Voltage and Current Sources

Description

The MAX5214/MAX5216 are pin-compatible, 14-bit and 16-bit digital-to-analog converters (DACs). The MAX5214/MAX5216 are single-channel, low-power, buffered voltage-output DACs. The devices use a precision external reference applied through the high resistance input for rail-to-rail operation and low system power consumption. The MAX5214/MAX5216 accept a wide 2.7V to 5.5V supply voltage range. Power consumption is extremely low to accommodate most low-power and low-voltage applications. These devices feature a 3-wire SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface to save board space and to reduce the complexity in isolated applications. The MAX5214/MAX5216 minimize the digital noise feedthrough from input to output with SCLK and DIN input buffers powered down after completion of each serial input frame. On power-up, the MAX5214/MAX5216 reset the DAC output to zero, providing additional safety for applications that drive valves or other transducers that need to be off on power-up. The DAC output is buffered resulting in a low supply current of 80µA (max) and a low offset error of ±0.25mV. A zero level applied to the active-low CLR pin asynchronously clears the contents of the input and DAC registers and sets the DAC output to zero independent of the serial interface. The MAX5214/MAX5216 are available in an ultra-small (3mm x 5mm), 8-pin µMAX® package and are specified over the -40°C to +105°C extended industrial temperature range.

Simplified Block Diagram

MAX5214, MAX5216: Typical Operating Circuit MAX5214, MAX5216: Typical Operating Circuit 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.