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+3V/+5V, 12-Bit, Serial, Multiplying DACs in 10-Pin µMAX Package

Single, Serial, Current Output DAC in a µMAX Package

Product Details

Key Features

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 12
# Channels 1
Interface Serial - SPI
Output Type Current- Buffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.7
Supply Range (V) (max) 3.6
ICC (mA) (max) 0.5
Settling Time (µs) (typ) 0.12
Package/Pins UMAX/10
Oper. Temp. (°C) -40 to +85
0 to +70
Budgetary
Price (See Notes)
7.12
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Simplified Block Diagram

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Parameters

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 12
# Channels 1
Interface Serial - SPI
Output Type Current- Buffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.7
Supply Range (V) (max) 3.6
ICC (mA) (max) 0.5
Settling Time (µs) (typ) 0.12
Package/Pins UMAX/10
Oper. Temp. (°C) -40 to +85
0 to +70
Budgetary
Price (See Notes)
7.12

Key Features

  • Single-Supply Operation:
    • +4.5V to +5.25V (MAX551)
    • +2.7V to +3.6V (MAX552)
  • 12.5MHz 3-Wire Serial Interface
  • SPI/QSPI and MICROWIRE Compatible
  • Power-On Reset Clears DAC Output to Zero
  • Asynchronous Clear Input Clears DAC Output to Zero
  • Voltage Mode or Bipolar Mode Operation with a Single Power Supply
  • Schmitt-Trigger Digital Inputs for Direct Optocoupler Interface
  • 0.4µA Supply Current
  • 10-Pin µMAX Package

Applications/Uses

  • µP-Controlled Systems
  • Automatic Calibration
  • Digitally Controlled Filters
  • Gain Adjustment
  • Motion-Controlled Systems
  • Process-Control I/O Boards
  • Programmable Amplifiers/Attenuators
  • Transducer Drivers

Description

The MAX551/MAX552 are 12-bit, current-output, 4-quadrant multiplying digital-to-analog converters (DACs). These devices are capable of providing unipolar or bipolar outputs when operating from either a single +5V (MAX551) or +3V (MAX552) power supply. An internal power-on-reset circuit clears all DAC registers on power-up, setting the DAC output voltage to 0V.

The SPI™/QSPI™ and MICROWIRE™-compatible 3-wire serial interface saves board space and reduces power dissipation compared with parallel-interface devices. The MAX551/MAX552 feature double-buffered interface logic with a 12-bit input register and a 12-bit DAC register. Data in the DAC register sets the DAC output voltage. Data is loaded into the input register through the serial interface. The active-low LOAD input transfers data from the input register to the DAC register, updating the DAC output voltage. The MAX551/MAX552 are available in an 8-pin DIP package or a space-saving 10-pin µMAX package. The µMAX package provides an asynchronous clear (CLR-bar) input that clears all DAC registers when pulled to GND, setting the output voltage to 0V.

Simplified Block Diagram

MAX551, MAX552: Functional Block Diagram MAX551, MAX552: 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 .