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32-Channel, 14-Bit, Voltage-Output DACs with Serial Interface

Product Details

Key Features

Applications/Uses

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 14
# Channels 32
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 4
Supply Range (V) (min) 3.25
Supply Range (V) (max) 8.25
ICC (mA) (max) 39
Settling Time (µs) (typ) 20
Package/Pins LQFP/64
TQFN/68
Oper. Temp. (°C) 0 to +85
Budgetary
Price (See Notes)
32.73
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Simplified Block Diagram

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Parameters

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 14
# Channels 32
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 4
Supply Range (V) (min) 3.25
Supply Range (V) (max) 8.25
ICC (mA) (max) 39
Settling Time (µs) (typ) 20
Package/Pins LQFP/64
TQFN/68
Oper. Temp. (°C) 0 to +85
Budgetary
Price (See Notes)
32.73

Key Features

  • Offset and Gain Correction for Each DAC Channel
  • Guaranteed Monotonic to 14 Bits
  • 32 Individual DACs in a 10mm x 10mm, 68-Pin TQFN Package or 12mm x 12mm, 64-Pin TQFP Package
  • Output Voltage Ranges
    • 0 to +10V (MAX5773)
    • -2.5V to +7.5V (MAX5774)
    • -5V to +5V (MAX5775)
  • Buffered Voltage Outputs Drive 10kΩ || 100pF
  • Glitch-Free Power-Up
  • SPI/QSPI/MICROWIRE- and DSP-Compatible 33MHz Serial Interface

Applications/Uses

  • Arbitrary Function Generators
  • Automatic Test Systems
  • Avionics Equipment
  • Digital Offset/Gain Adjustment
  • Industrial Process Controls
  • Minimum Component Count Analog Systems
  • Optical Router Controls

Description

The MAX5773/MAX5774/MAX5775 32-channel, 14-bit, voltage-output, digital-to-analog converters (DACs) are ideal for applications requiring a high number of programmable voltages. The MAX5773/MAX5774/MAX5775 can be programmed to calibrate the 14-bit input data word for gain and offset errors before updating the DAC output.

An SPI™-/QSPI™-/MICROWIRE™- or DSP-compatible serial interface controls the MAX5773/MAX5774/MAX5775. Each DAC channel has its own input, gain, and offset register. These three registers pass data through one of the two multiplier accumulator units (MACs), resulting in a voltage output corrected for gain and offset error. Each DAC channel has a double-buffered input structure to minimize the digital-noise feedthrough from the digital inputs to the outputs, and allows for synchronous or asynchronous updating of the outputs. The DAC outputs update independently or simultaneously with a single software or hardware command. The MAX5773/MAX5774/MAX5775 also provide a digital output (DOUT) that allows for readback or daisy chaining of multiple devices.

All DAC outputs are buffered and drive 10kΩ in parallel with 100pF. The MAX5773 has a 0 to +10V output range; the MAX5774 has a -2.5V to +7.5V output range; and the MAX5775 has a -5V to +5V output range. The MAX5773/MAX5774/MAX5775 are available in a 68-pin, 10mm x 10mm, TQFN package and a 64-pin, 12mm x 12mm, TQFP package. The MAX5773/MAX5774/MAX5775 are specified over the 0°C to +85°C temperature range. Refer to the MAX5753/MAX5754/MAX5755 data sheet for similar 14-bit, 32-channel DACs without offset and gain calibration.

Simplified Block Diagram

MAX5773, MAX5774, MAX5775: Functional Block Diagram MAX5773, MAX5774, MAX5775: Functional Block Diagram 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 .