Overview
The DAC121S101CIMM/NOPB is a 12-bit micro power digital-to-analog converter (DAC) produced by Texas Instruments. This device is known for its low power consumption, rail-to-rail output, and wide operating temperature range, making it suitable for various applications including battery-powered instruments, automotive systems, and programmable voltage and current sources. The DAC operates over a supply voltage range of 2.7V to 5.5V and is compatible with standard SPI, QSPI, MICROWIRE, and DSP interfaces.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution (Bits) | 12-bit |
| Input Channel Type | Serial |
| Supply Voltage Range | 2.7V to 5.5V |
| ADC / DAC Case Style | VSSOP (8-pin) |
| No. of Pins | 8 |
| Data Interface | 3 Wire Serial (SPI, QSPI, MICROWIRE) |
| Operating Temperature Range | -40°C to +105°C |
| Output Type | Rail-to-Rail |
| Settling Time | 8µs (typical) |
| Supply Current | 0.26mA (typical at 3.6V), 0.39mA (typical at 5.5V) |
| Linearity Error | -0.15 to +0.25 LSB (typical DNL) |
| Zero Code Error | 4mV (typical) |
| Full-Scale Error | -0.06% FS (typical) |
Key Features
- Low power operation with power consumption of 0.64mW at 3.6V and 1.43mW at 5.5V in normal mode.
- Power-down feature reducing power consumption to less than a microWatt.
- Rail-to-rail voltage output ensuring maximum dynamic range.
- Wide temperature range of -40°C to +105°C.
- Compatibility with standard SPI, QSPI, MICROWIRE, and DSP interfaces.
- Small package size (VSSOP-8) suitable for space-constrained applications.
- Power-on reset to zero volts output ensuring safe startup.
Applications
- Battery-powered instruments due to low power consumption.
- Digital gain and offset adjustment in various systems.
- Programmable voltage and current sources.
- Programmable attenuators.
- Automotive systems due to its wide temperature range and robust performance.
Q & A
- What is the resolution of the DAC121S101CIMM/NOPB?
The resolution is 12 bits. - What is the supply voltage range for this DAC?
The supply voltage range is 2.7V to 5.5V. - What type of interface does this DAC use?
The DAC uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interfaces. - What is the operating temperature range of this DAC?
The operating temperature range is -40°C to +105°C. - What is the typical settling time of the DAC121S101CIMM/NOPB?
The typical settling time is 8µs. - Is the DAC121S101CIMM/NOPB RoHS compliant?
Yes, it is RoHS compliant. - What is the package type of this DAC?
The package type is VSSOP-8. - Does the DAC have a power-down feature?
Yes, it has a power-down feature that reduces power consumption to less than a microWatt. - What are some common applications of the DAC121S101CIMM/NOPB?
Common applications include battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and automotive systems. - How does the DAC121S101CIMM/NOPB handle power-on reset?
The DAC has a power-on reset circuit that ensures the output powers up to zero volts and remains there until a valid write to the device).
