DAC124S085
www.ti.com
SNAS348F –MAY 2006–REVISED MARCH 2013
DAC124S085 12-Bit Micro Power QUAD Digital-to-Analog Converter with Rail-to-Rail
Output
Check for Samples: DAC124S085
1
FEATURES
DESCRIPTION
The DAC124S085 is a full-featured, general purpose
2
•
Ensured Monotonicity
QUAD
12-bit
voltage-output
digital-to-analog
•
•
•
•
•
•
•
Low Power Operation
converter (DAC) that can operate from a single +2.7V
to 5.5V supply and consumes 1.1 mW at 3V and 2.4
mW at 5V. The DAC124S085 is packaged in 10-lead
SON and VSSOP packages.
Rail-to-Rail Voltage Output
Power-on Reset to 0V
Simultaneous Output Updating
Wide Power Supply Range (+2.7V to +5.5V)
Industry's Smallest Package
Power Down Modes
The 10-lead SON package makes the DAC124S085
the smallest QUAD DAC in its class. The on-chip
output amplifier allows 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.
APPLICATIONS
•
•
•
•
Battery-Powered Instruments
Digital Gain and Offset Adjustment
Programmable Voltage & Current Sources
Programmable Attenuators
The reference for the DAC124S085 serves all four
channels and can vary in voltage between 1V and VA,
providing the widest possible output dynamic range.
The DAC124S085 has a 16-bit input shift register that
controls the outputs to be updated, the mode of
operation, the powerdown condition, and the binary
input data. All four outputs can be updated
simultaneously or individually depending on the
setting of the two mode of operation bits.
KEY SPECIFICATIONS
•
•
•
•
•
•
•
Resolution: 12 Bits
INL: ±8 LSB (Max)
DNL: +0.7 / −0.5 LSB (Max)
Setting Time: 8.5 µs (Max)
Zero Code Error: +15 mV (Max)
Full-Scale Error: −0.75 %FS (Max)
Supply Power:
A power-on reset circuit ensures that the DAC output
powers up to zero volts and remains there until there
is a valid write to the device. A power-down feature
reduces power consumption to less than a microWatt
with three different termination options.
–
–
Normal: 1.1 mW (3V) / 2.4 mW (5V) Typ
Power Down: 0.3 µW (3V) / 0.8 µW (5V) Typ
The low power consumption and small packages of
the DAC124S085 make it an excellent choice for use
in battery operated equipment.
The DAC124S085 is one of a family of pin compatible
DACs, including the 8-bit DAC084S085 and the 10-bit
DAC104S085. The DAC124S085 operates over the
extended industrial temperature range of −40°C to
+105°C.
Pin Configuration
VA
1
2
3
4
5
10 SCLK
VA
VOUTA
VOUTB
VOUTC
VOUTD
1
2
3
4
5
10
9
SCLK
SYNC
DIN
VOUTA
VOUTB
VOUTC
VOUTD
9
8
7
6
SYNC
DIN
8
SON
VSSOP
VREFIN
GND
7
VREFIN
GND
6
1
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.
All trademarks are the property of their respective owners.
2
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 © 2006–2013, Texas Instruments Incorporated