DAC108S085 10-Bit Micro Power OCTAL Digital-to-Analog Converter with Rail-to-Rail Outputs | TI.com

DAC108S085 (ACTIVE)

10-Bit Micro Power OCTAL Digital-to-Analog Converter with Rail-to-Rail Outputs

 

Description

The DAC108S085 is a full-featured, general purpose OCTAL 10-bit voltage-output digital-to-analog converter (DAC) that can operate from a single +2.7V to +5.5V supply and consumes 1.95 mW at 3V and 4.85 mW at 5V. The DAC108S085 is packaged in a 16-lead WQFN package and a 16-lead TSSOP package. The WQFN package makes the DAC108S085 the smallest OCTAL DAC in its class. The on-chip output amplifiers allow rail-to-rail output swing and the three wire serial interface operates at clock rates up to 40 MHz over the entire supply voltage range. Competitive devices are limited to 25 MHz clock rates at supply voltages in the 2.7V to 3.6V range. The serial interface is compatible with standard SPI, QSPI, MICROWIRE and DSP interfaces. The DAC108S085 also offers daisy chain operation where an unlimited number of DAC108S085s can be updated simultaneously using a single serial interface.

There are two references for the DAC108S085. One reference input serves channels A through D while the other reference serves channels E through H. Each reference can be set independently between 0.5V and VA, providing the widest possible output dynamic range. The DAC108S085 has a 16-bit input shift register that controls the mode of operation, the power-down condition, and the DAC channels' register/output value. All eight DAC outputs can be updated simultaneously or individually.

A power-on reset circuit ensures that the DAC outputs power up to zero volts and remain there until there is a valid write to the device. The power-down feature of the DAC108S085 allows each DAC to be independently powered with three different termination options. With all the DAC channels powered down, power consumption reduces to less than 0.3 µW at 3V and less than 1 µW at 5V. The low power consumption and small packages of the DAC108S085 make it an excellent choice for use in battery operated equipment.

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The DAC108S085 is one of a family of pin compatible DACs, including the 8-bit DAC088S085 and the 12-bit DAC128S085. All three parts are offered with the same pinout, allowing system designers to select a resolution appropriate for their application without redesigning their printed circuit board. The DAC108S085 operates over the extended industrial temperature range of −40°C to +125°C.

Features

  • Ensured Monotonicity
  • Low Power Operation
  • Rail-to-Rail Voltage Output
  • Daisy Chain Capability
  • Power-on Reset to 0V
  • Simultaneous Output Updating
  • Individual Channel Power Down Capability
  • Wide power supply range (+2.7V to +5.5V)
  • Dual Reference Voltages with Range of 0.5V to VA
  • Operating Temperature Range of −40°C to +125°C
  • Industry's Smallest Package

Key Specifications

  • Resolution: 10 Bits
  • INL: ±2 LSB (Max)
  • DNL: +0.35/-0.2 LSB (Max)
  • Settling Time: 6 µs (Max)
  • Zero Code Error : +15mV (Max)
  • Full-Scale Error: -0.75% FSR (Max)
  • Supply Power
    • Normal: 1.95 mW (3V)/4,85 mW (5V) (Typ)
    • Power Down: 0.3 µW (3V)/1 W (5V) (Typ)

All trademarks are the property of their respective owners.

Parametrics

Compare all products in Precision DACs (<=10MSPS) Email Download to Excel
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
DAC108S085 Order now 10     String     8     SPI     5.5     0     6     Buffered Voltage     Ext     Catalog     -40 to 125     Cost Optimized
Low Power
SDO
Small Size    
DAC088S085 Order now 8     String     8     SPI     5.5     0     4.5     Buffered Voltage     Ext     Catalog     -40 to 125     Cost Optimized
Low Power
Small Size    
DAC101S101 Order now 10     String     1     SPI     5.5     0     8     Buffered Voltage     Ext     Catalog     -40 to 105     Cost Optimized
Low Power    
DAC101S101-Q1 Samples not available 10     String     1     SPI     5.5     0     8     Buffered Voltage     Ext     Automotive     -40 to 125     Cost Optimized
Low Power    
DAC102S085 Order now 10     String     2     SPI     5.5     0     6     Buffered Voltage     Ext     Catalog     -40 to 105     Cost Optimized
Low Power
Small Size    
DAC104S085 Order now 10     String     4     SPI     5.5     0     6     Buffered Voltage     Ext     Catalog     -40 to 105     Cost Optimized
Low Power
Small Size    
DAC128S085 Order now 12     String     8     SPI     5.5     0     8.5