DAC7574 12-Bit Quad Voltage Output Digital-to-Analog Converter w/ I2C Interface | TI.com

DAC7574 (ACTIVE)

12-Bit Quad Voltage Output Digital-to-Analog Converter w/ I2C Interface

 

Description

The DAC7574 is a low-power, quad channel, 12-bit buffered voltage output DAC. Its on-chip precision output amplifier allows rail-to-rail output swing to be achieved. The DAC7574 utilizes an I2C compatible two wire serial interface supporting high-speed interface mode with address support of up to four DAC7574s for a total of 16 channels on the bus.

The DAC7574 uses VDD and GND to set the output range of the DAC. The DAC7574 incorporates a power-on-reset circuit that ensures that the DAC output powers up at zero volts and remains there until a valid write takes place to the device. The DAC7574 contains a power-down feature, accessed via the internal control register, that reduces the current consumption of the device to 200 nA at 5 V.

The low power consumption of this part in normal operation makes it ideally suited to portable battery operated equipment. The power consumption is less than 3mW at VDD = 5 V reducing to 1 µW in power-down mode.

The DAC7574 is available in a 10-lead MSOP package.

Features

  • Micropower Operation: 600 µA at 5 V VDD
  • Power-On Reset to Zero
  • +2.7 V to +5.5 V Analog Power Supply
  • 12-Bit Monotonic
  • I2C™ Interface Up to 3.4 Mbps
  • Data Transmit Capability
  • On-Chip Output Buffer Amplifier, Rail-to-Rail Operation
  • Double-Buffered Input Register
  • Address Support for up to Four DAC7574s
  • Synchronous Update Support for up to 16 Channels
  • Operation From –40°C to 105°C
  • Small 10 Lead MSOP Package
  • APPLICATIONS
    • Process Control
    • Data Acquisition Systems
    • Closed-Loop Servo Control
    • PC Peripherals
    • Portable Instrumentation

I2C is a trademark of Philips Corporation.

Parametrics

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Part number Order Resolution (Bits) Architecture DAC channels Interface Output range (Max) (mA/V) Output range (Min) (mA/V) Settling time (µs) Output type Reference: type Rating Operating temperature range (C) Features
DAC7574 Order now 12     String     4     I2C     5.5     0     10     Buffered Voltage     Ext     Catalog     -40 to 105     Low Power    
DAC5571 Order now 8     String     1     I2C     5.5     0     8     Buffered Voltage     Ext     Catalog     -40 to 105     Cost Optimized
Low Power    
DAC6571 Order now 10     String     1     I2C     5.5     0     9     Buffered Voltage     Ext     Catalog     -40 to 105     Cost Optimized
Low Power    
DAC7571 Order now 12     String     1     I2C     5.5     0     10     Buffered Voltage     Ext     Catalog     -40 to 105     Cost Optimized
Low Power
Small Size    
DAC7573 Order now 12     String     4     I2C     5.5     0     10     Buffered Voltage     Ext     Catalog     -40 to 85