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.