Datasheet
DAC108S085
www.ti.com
SNAS423B –AUGUST 2007–REVISED MARCH 2013
DAC108S085 10-Bit Micro Power OCTAL Digital-to-Analog Converter with Rail-to-Rail
Outputs
Check for Samples: DAC108S085
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FEATURES
DESCRIPTION
The DAC108S085 is a full-featured, general purpose
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• Ensured Monotonicity
OCTAL 10-bit voltage-output digital-to-analog
• Low Power Operation
converter (DAC) that can operate from a single +2.7V
• Rail-to-Rail Voltage Output
to +5.5V supply and consumes 1.95 mW at 3V and
4.85 mW at 5V. The DAC108S085 is packaged in a
• Daisy Chain Capability
16-lead WQFN package and a 16-lead TSSOP
• Power-on Reset to 0V
package. The WQFN package makes the
• Simultaneous Output Updating
DAC108S085 the smallest OCTAL DAC in its class.
The on-chip output amplifiers allow rail-to-rail output
• Individual Channel Power Down Capability
swing and the three wire serial interface operates at
• Wide power supply range (+2.7V to +5.5V)
clock rates up to 40 MHz over the entire supply
• Dual Reference Voltages with Range of 0.5V to
voltage range. Competitive devices are limited to 25
V
A MHz clock rates at supply voltages in the 2.7V to
3.6V range. The serial interface is compatible with
• Operating Temperature Range of −40°C to
standard SPI™, QSPI, MICROWIRE and DSP
+125°C
interfaces. The DAC108S085 also offers daisy chain
• Industry's Smallest Package
operation where an unlimited number of
DAC108S085s can be updated simultaneously using
APPLICATIONS
a single serial interface.
• Battery-Powered Instruments
There are two references for the DAC108S085. One
• Digital Gain and Offset Adjustment
reference input serves channels A through D while
the other reference serves channels E through H.
• Programmable Voltage & Current Sources
Each reference can be set independently between
• Programmable Attenuators
0.5V and V
A
, providing the widest possible output
• Voltage Reference for ADCs
dynamic range. The DAC108S085 has a 16-bit input
shift register that controls the mode of operation, the
• Sensor Supply Voltage
power-down condition, and the DAC channels'
• Range Detectors
register/output value. All eight DAC outputs can be
updated simultaneously or individually.
KEY SPECIFICATIONS
A power-on reset circuit ensures that the DAC
• Resolution: 10 Bits
outputs power up to zero volts and remain there until
• INL: ±2 LSB (Max)
there is a valid write to the device. The power-down
feature of the DAC108S085 allows each DAC to be
• DNL: +0.35/-0.2 LSB (Max)
independently powered with three different
• Settling Time: 6 µs (Max)
termination options. With all the DAC channels
• Zero Code Error : +15mV (Max)
powered down, power consumption reduces to less
than 0.3 µW at 3V and less than 1 µW at 5V. The low
• Full-Scale Error: -0.75% FSR (Max)
power consumption and small packages of the
• Supply Power
DAC108S085 make it an excellent choice for use in
– Normal: 1.95 mW (3V)/4,85 mW (5V) (Typ)
battery operated equipment.
– Power Down: 0.3 µW (3V)/1 W (5V) (Typ)
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2SPI is a trademark of Motorola, Inc..
3All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2007–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.