1 Features
1• 5962R07726
– Total Ionizing Dose 100 krad(Si)
– Single Event Latch-up Immune
120 MeV-cm2/mg
– Single Event Functional Interrupt Immune
120 MeV-cm2/mg (See Radiation Report)
• Ensured 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 (Typical)
– Output Settling Time: 12.5 μs (Typical)
– Zero Code Error: 2.1 mV (Typical)
– Full-Scale Error: −0.04% FS (Typical)
– Power Dissipation
– Normal Mode: 0.52 mW (3.6 V) and 1.19
mW (5.5 V) Typical
– Power-Down Mode: 0.014 μW (3.6 V) and
0.033 μW (5.5 V) Typical

2 Applications
• Satellites
– Altitude and Orbit Control
– Precision Sensors
– Motor Control
• High Temperatures

3 Description
The DAC121S101QML-SP device is a full-featured,
general-purpose, 12-bit voltage-output digital-toanalog
converter (DAC) that can operate 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 threewire
serial interface operates 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 DAC121S101QML-SP
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 DAC121S101QML-SP make it an excellent
choice for use in battery-operated equipment.