Texas Instruments DAC121S101
The DAC121S101 device is a full-featured, generalpurpose, 12-bit voltage-output digital-to-analog 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-torail output swing and the three wire serial interface operates at clock rates up to 30 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.FEATURES
●1 DAC121S101-Q1 is AEC-Q100 Grade 1 Qualified and is Manufactured on an Automotive Grade Flow.● Ensured Monotonicity
● Low Power Operation
● Rail-to-Rail Voltage Output
● Power-on Reset to Zero Volts Output
● Wide Temperature Range of −40°C to +125°C
● Wide Power Supply Range of 2.7 V to 5.5 V
● Small Packages
● Power Down Feature
● Key Specifications – 12-Bit Resolution – DNL -0.15, +0.25 LSB (Typical) – 8-µs Output Settling Time (Typical) – 4-mV Zero Code Error (Typical) – Full-Scale Error at −0.06 %FS (Typical) – 0.64-mW (3.6-V) / 1.43-mW (5.5-V) Normal Mode Power Consumption (Typical) – 0.14-µW (3.6-V) / 0.39-µW (5.5-V) Power- Down Mode (Typical) 2
APPLICATIONS
● Battery-Powered Instruments● Digital Gain and Offset Adjustment
● Programmable Voltage and Current Sources
● Programmable Attenuators
● Automotive 3
DESCRIPTION
Competitive devices are limited to 20-MHz clock rates at supply voltages in the 2.7 V to 3.6 V 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.