DAC121S101QML Datasheet, PDF (1/25 Pages) Texas Instruments – 12-Bit Micro Power Digital-to-Analog Converter with Railto-

DAC121S101QML
April 25, 2012
12-Bit Micro Power Digital-to-Analog Converter with Rail-
to-Rail Output
General Description
The DAC121S101 is a full-featured, general purpose 12-bit
voltage-output digital-to-analog converter (DAC) that can op-
erate from a single +2.7 V to 5.5 V supply and consumes just
177 µA of current at 3.6 V. The on-chip output amplifier allows
rail-to-rail output swing and the three wire serial interface op-
erates at clock rates up to 20 MHz over the specified supply
voltage range and is compatible with standard SPI™, QSPI,
MICROWIRE and DSP interfaces.
The supply voltage for the DAC121S101 serves as its voltage
reference, providing the widest possible output dynamic
range. 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.
The low power consumption and small packages of the
DAC121S101 make it an excellent choice for use in battery
operated equipment.
The DAC121S101 operates over the extended temperature
range of -55°C to +125°C.
Features
■ ^{Total Ionizing Dose}
100 krad(Si)
■ ^{Single Event Latch-up}
120 MeV-cm²/mg
■ ^{Guaranteed Monotonicity}
■ ^{Low Power Operation}
■ ^{Rail-to-Rail Voltage Output}
■ ^{Power-on Reset to Zero Volts Output}
■ ^{SYNC Interrupt Facility}
■ ^{Wide power supply range (+2.7 V to +5.5 V)}
■ ^{Small Packages}
■ ^{Power Down Feature}
Key Specifications
■ ^Resolution
12 bits
■ ^DNL
+0.21, -0.10 LSB (typ)
■ ^{Output Settling Time}
12.5 µs (typ)
■ ^{Zero Code Error}
2.1 mV (typ)
■ ^{Full-Scale Error}
−0.04 %FS (typ)
■ ^{Power Dissipation}
— Normal Mode 0.52 mW (3.6 V) / 1.19 mW (5.5 V) typ
— Pwr Down 0.014 µW (3.6 V) / 0.033 µW (5.5 V) typ
Mode
Applications
■ ^{Battery-Powered Instruments}
■ ^{Digital Gain and Offset Adjustment}
■ ^{Programmable Voltage & Current Sources}
■ ^{Programmable Attenuators}
Ordering Information
NS Part Number
DAC121S101WGRQV
Flight Part
CMOS ELDRS-Free
DAC121S101WGRLV
Flight Part
CMOS ELDRS-Free
DAC121S101WGMPR
Pre-flight Prototype
(Note 13)
DAC121S101CVAL
Ceramic Evaluation Board
SMD Part Number
5962R0722601VZA
100 krad(Si)
High Dose Rate/Anneal
Tested
5962R0722602VZA
100 krad(Si)
Low Dose Rate Tested
See section 3.0 for dose rate environment information
NS Package Number
WG10A
WG10A
WG10A
Package Discription
10LD Ceramic SOIC
10LD Ceramic SOIC
10LD Ceramic SOIC
10LD Ceramic SOIC
on Evaluation Board
SPI™ is a trademark of Motorola, Inc.
© 2012 Texas Instruments Incorporated
300180 SNAS410D
www.ti.com