DAC088S085
www.ti.com
SNAS424C –AUGUST 2007–REVISED MARCH 2013
DAC088S085 8-Bit Micro Power OCTAL Digital-to-Analog Converter with Rail-to-Rail
Outputs
Check for Samples: DAC088S085
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FEATURES
DESCRIPTION
The DAC088S085 is a full-featured, general purpose
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Ensured Monotonicity
OCTAL
8-bit
voltage-output
digital-to-analog
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Low Power Operation
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 DAC088S085 is packaged in a
16-lead WQFN package and a 16-lead TSSOP
package. The WQFN package makes the
DAC088S085 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 DAC088S085 also offers daisy chain
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
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Operating Temperature Range of −40°C to
+125°C
Industry's Smallest Package
operation
where
an
unlimited
number
of
DAC088S085s can be updated simultaneously using
a single serial interface.
APPLICATIONS
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Battery-Powered Instruments
Digital Gain and Offset Adjustment
Programmable Voltage & Current Sources
Programmable Attenuators
Voltage Reference for ADCs
Sensor Supply Voltage
There are two references for the DAC088S085. 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 DAC088S085 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.
Range Detectors
KEY SPECIFICATIONS
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 DAC088S085 allows each DAC to be
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Resolution: 8 bits
INL: ±0.5 LSB (max)
DNL: +0.15 / −0.1 LSB (max)
Settling Time: 4.5 µs (max)
Zero Code Error: +15 mV (max)
Full-Scale Error: −0.75 %FSR (max)
Supply Power :
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
DAC088S085 make it an excellent choice for use in
battery operated equipment.
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Normal: 1.95 mW (3V) / 4.85 mW (5V) typ
Power Down: 0.3 µW (3V) / 1 µW (5V) typ
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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SPI is a trademark of Motorola, Inc..
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2013, Texas Instruments Incorporated
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