Overview
The DAC121S101CIMK/NOPB from Texas Instruments is a full-featured, general-purpose 12-bit voltage-output digital-to-analog converter (DAC). This device is designed for low power operation and features a wide range of specifications that make it suitable for various applications. It operates from a single 2.7-V to 5.5-V supply voltage and has a rail-to-rail voltage output. The DAC121S101CIMK/NOPB is controlled via a 3-wire SPI interface and includes a power-on reset to zero volts output, ensuring that the DAC output remains at zero volts until a valid write sequence is made.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Resolution | 12 Bits | |
| Differential Non-Linearity (DNL) | -0.15, +0.25 LSB | |
| Output Settling Time | 8 µs | |
| Zero Code Error | 4 mV | |
| Full-Scale Error | -0.06 %FS | |
| Normal Mode Power Consumption (3.6 V) | 0.64 mW | |
| Normal Mode Power Consumption (5.5 V) | 1.43 mW | |
| Power-Down Mode Power Consumption (3.6 V) | 0.14 µW | |
| Power-Down Mode Power Consumption (5.5 V) | 0.39 µW | |
| Temperature Range | -40°C to +125°C | |
| Supply Voltage Range | 2.7 V to 5.5 V |
Key Features
- Low Power Operation: The DAC121S101CIMK/NOPB is designed for low power consumption, making it suitable for battery-operated equipment.
- Rail-to-Rail Voltage Output: The device provides a rail-to-rail voltage output, maximizing the dynamic range of the output signal.
- Power-on Reset to Zero Volts Output: Ensures the DAC output powers up to zero volts and remains there until a valid write sequence is made.
- Wide Temperature Range: Operates over a wide temperature range of -40°C to +125°C.
- Wide Power Supply Range: Compatible with supply voltages from 2.7 V to 5.5 V.
- Small Packages: Available in compact SOT-23-THN-6 and VSSOP-8 packages.
- Power Down Feature: Reduces power consumption to less than a microWatt in power-down mode.
- SPI Interface Compatibility: Compatible with standard SPI, QSPI, MICROWIRE, and DSP interfaces.
Applications
- Battery-Powered Instruments: Ideal for use in battery-operated devices due to its low power consumption.
- Digital Gain and Offset Adjustment: Can be used to correct for gain errors and adjust offsets in various systems.
- Programmable Voltage and Current Sources: Suitable for applications requiring programmable voltage or current sources.
- Programmable Attenuators: Can be used in programmable attenuator applications.
- Automotive: The DAC121S101-Q1 version is AEC-Q100 Grade 1 Qualified, making it suitable for automotive applications.
Q & A
- What is the resolution of the DAC121S101CIMK/NOPB?
The DAC121S101CIMK/NOPB has a 12-bit resolution.
- What is the typical output settling time of the DAC121S101CIMK/NOPB?
The typical output settling time is 8 µs.
- What is the power consumption in normal mode at 3.6 V?
The power consumption in normal mode at 3.6 V is typically 0.64 mW.
- What is the power consumption in power-down mode at 5.5 V?
The power consumption in power-down mode at 5.5 V is typically 0.39 µW.
- What is the temperature range of the DAC121S101CIMK/NOPB?
The device operates over a temperature range of -40°C to +125°C.
- What interfaces is the DAC121S101CIMK/NOPB compatible with?
The device is compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
- What is the supply voltage range for the DAC121S101CIMK/NOPB?
The supply voltage range is from 2.7 V to 5.5 V.
- What is the typical zero code error of the DAC121S101CIMK/NOPB?
The typical zero code error is 4 mV.
- Is the DAC121S101CIMK/NOPB suitable for automotive applications?
Yes, the DAC121S101-Q1 version is AEC-Q100 Grade 1 Qualified, making it suitable for automotive applications.
- What are the available package types for the DAC121S101CIMK/NOPB?
The device is available in SOT-23-THN-6 and VSSOP-8 packages.
