16-Bit, Ultralow Glitch Voltage Output DAC - DAC8550

DAC8550 (ACTIVE)

16-Bit, Ultralow Glitch Voltage Output DAC

Description

The DAC8550 is a small, low-power, voltage output, 16-bit digital-to-analog converter (DAC). It is monotonic, provides good linearity, and minimizes undesired code-to-code transient voltages. The DAC8550 uses a versatile, 3-wire serial interface that operates at clock rates of up to 30MHz and is compatible with standard SPI™, QSPI™, Microwire™, and digital signal processor (DSP) interfaces.

The DAC8550 requires an external reference voltage to set its output range. The DAC8550 incorporates a power-on reset circuit that ensures that the DAC output powers up at midscale and remains there until a valid write takes place to the device. The DAC8550 contains a power-down feature, accessed over the serial interface, that reduces the current consumption of the device to 200nA at 5V.

The low-power consumption of this device in normal operation makes it ideal for portable, battery-operated equipment. Power consumption is 0.38mW at 2.7V, reducing to less than 1µW in power-down mode.

The DAC8550 is available in an MSOP-8 package.

For additional flexibilty, see the DAC8551, a binary-coded counterpart to the DAC8550.

Features

  • Relative Accuracy: 3LSB
  • Glitch Energy: 0.1nV-s
  • MicroPower Operation: 140µA at 2.7V
  • Power-On Reset to Midscale
  • Power Supply: +2.7V to +5.5V
  • 16-Bit Monotonic Over Temperature
  • Settling Time: 10µs to ±0.003% FSR
  • Low-Power Serial Interface with Schmitt-Triggered Inputs
  • On-Chip Output Buffer Amplifier with Rail-to-Rail Output Amplifier
  • Power-Down Capability
  • 2's Complement Input
  • SYNC InterruptFacility
  • Drop-In Compatible with DAC8531/01 and DAC8551 (Binary Input)
  • Available in a Tiny MSOP-8 Package
  • APPLICATIONS
    • Process Control
    • Data Acquisition Systems
    • Closed-Loop Servo-Control
    • PC Peripherals
    • Portable Instrumentation
    • Programmable Attenuation

SPI, QSPI are trademarks of Motorola, Inc.
Microwire is a trademark of National Semiconductor.
All other trademarks are the property of their respective owners.

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Parametrics Compare all products in Precision DAC (=<10MSPS)

 
Resolution (Bits)
DAC: Channels
Architecture
Interface
Output Type
Output Range Min. (V or mA)
Output Range Max. (V or mA)
Settling Time (µs)
Reference: Type
Rating
Pin/Package
Approx. Price (US$)
Operating Temperature Range (C)
Special Features
DAC8550
16    
1    
String    
Serial SPI    
Buffered Voltage    
0    
5.5    
10    
Ext    
Catalog    
8VSSOP    
2.60 | 1ku    
-40 to 105    
Reset to Mid-Scale    

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