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Low-Power, Single, 16-/12-Bit, Buffered Voltage-Output DACs

Industry's Smallest 16-Bit DACs with Pin-Programmable Zero or Midscale Power-Up

Product Details

Key Features

Applications/Uses

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 16
# Channels 1
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Int./Ext.
INL (±LSB) (max) 11
Supply Range (V) (min) 2.7
Supply Range (V) (max) 5.25
ICC (mA) (max) 1.6
Settling Time (µs) (typ) 5
Package/Pins TQFN/16
Oper. Temp. (°C) -40 to +105
Budgetary
Price (See Notes)
3.36
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Simplified Block Diagram

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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 Int./Ext.
INL (±LSB) (max) 11
Supply Range (V) (min) 2.7
Supply Range (V) (max) 5.25
ICC (mA) (max) 1.6
Settling Time (µs) (typ) 5
Package/Pins TQFN/16
Oper. Temp. (°C) -40 to +105
Budgetary
Price (See Notes)
3.36

Key Features

  • 16-/12-Bit Resolution in a 3mm x 3mm, 16-Pin TQFN Package
  • Hardware-Selectable on Power-Up or Reset-to-Zero/Midscale DAC Output
  • Double-Buffered Input Registers
  • Active-Low LDAC Asynchronously Updates DAC Output
  • Active-Low READY Facilitates Daisy Chaining
  • High-Performance 10ppm/°C Internal Reference
  • Guaranteed Monotonic Over All Operating Conditions
  • Wide +2.7V to +5.25V Supply Range
  • Rail-to-Rail Buffered Output Operation
  • Low Gain Error (Less Than ±0.5% FS) and Offset (Less Than ±10mV)
  • 30MHz 3-Wire SPI-/QSPI-/MICROWIRE-/DSP-Compatible Serial Interface
  • CMOS-Compatible Inputs with Hysteresis
  • Low Power Consumption (ISHDN = 2µA max)

Applications/Uses

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

Description

The MAX5138/MAX5139 are a family of single-channel pin-compatible and software-compatible 16-bit and 12-bit DACs. The MAX5138/MAX5139 are low-power, 16-bit/12-bit, buffered voltage-output, high-linearity DACs. They use a precision internal reference or a precision external reference for rail-to-rail operation. The MAX5138/MAX5139 accept a wide +2.7V to +5.25V supply-voltage range to accommodate most low-power and low-voltage applications. These devices accept a 3-wire SPI-/QSPI™-/MICROWIRE®-/DSP-compatible serial interface to save board space and reduce the complexity of optically isolated and transformer-isolated applications. The digital interface's double-buffered hardware and software active-low LDAC provide simultaneous output update. The serial interface features an active-low READY output for easy daisy-chaining of several MAX5138/MAX5139 devices and/or other compatible devices. The MAX5138/MAX5139 include a hardware input to reset the DAC outputs to zero or midscale upon power-up or reset, providing additional safety for applications that drive valves or other transducers that need to be off during power-up. The high linearity of the DACs makes these devices ideal for precision control and instrumentation applications. The MAX5138/MAX5139 are available in an ultra-small (3mm x 3mm), 16-pin TQFN package and are specified over the -40°C to +105°C extended industrial temperature range.

Simplified Block Diagram

MAX5138, MAX5139: Typical Operating Circuit MAX5138, MAX5139: Typical Operating Circuit Zoom icon

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 .