TI offers over 800 DAC SKUs. Choosing the wrong one early costs board respins and schedule delays. This guide cuts through the full TI DAC portfolio and matches the right device family to your application, from low-power I2C devices to multi-GHz RF DACs.
Key Takeaways
- Choose 8–12 bit TI DACs for low-cost systems; use 16–20 bit for precision instrumentation.
- SPI suits high-speed or daisy-chained TI DAC designs; I2C reduces pin count for low-speed applications.
- INL and DNL define linearity: these specs are critical for calibration and process control accuracy.
- TI offers application-specific DACs with integrated 4–20 mA loops and audio output stages.
- Many TI DACs support 1.8 V operation, enabling battery-powered and low-power designs.
- Use TI’s WEBENCH tool and parametric search at ti.com to shortlist device candidates quickly.
Texas Instruments DACs: Product Overview
TI offers one of the broadest DAC portfolios in the industry. Product families span resolutions from 8-bit to 20-bit. Output types include voltage-output, current-output, and waveform DACs. Understanding the family structure speeds up device selection significantly.
Voltage-Output TI DAC Families
Voltage-output DACs are the most common TI DAC type. The DAC8xxx and DAC7xxx series are popular choices. For example, the DAC8552 offers dual 16-bit outputs with an SPI interface. These devices suit precision signal generation and calibration tasks well.
Current-Output and Waveform TI DACs
Current-output DACs deliver a current proportional to the digital input code. For instance, the DAC5573 is a compact 8-bit I2C current DAC. Waveform DACs, such as the DAC900, target high-speed signal synthesis. TI also offers DAC families optimized for audio applications.
Texas Instruments DAC Key Specifications
Selecting a TI DAC requires matching specs to the application. The table below summarizes critical parameters for common TI DAC families. Always verify these values against the specific device datasheet.
| Parameter | Symbol | Typical Range | Unit | Notes |
| Resolution | N | 8 – 20 | bits | Higher bits = finer output steps |
| Output voltage range | VOUT | 0 – VREF / Rail-to-Rail | V | Depends on voltage reference |
| Settling time | tS | 1 – 10,000 | ns | Lower settling time = faster update rate |
| Integral nonlinearity error | INL | ±0.5 – ±4 | LSB | Key linearity metric |
| Differential nonlinearity error | DNL | ±0.25 – ±1 | LSB | Affects output step uniformity |
| Supply voltage | VDD | 1.8 – 5.5 | V | Verify per device family |
| Digital interface | — | SPI / I2C / Parallel | — | Match to your MCU or FPGA |
| Power consumption | IDD | 50 µA – 20 mA | — | Critical for battery-powered designs |
Note: LSB = least significant bit. INL = integral nonlinearity. DNL = differential nonlinearity. THD = total harmonic distortion. GSPS = gigasamples per second. ATE = automated test equipment.
Texas Instruments DACs: Key Advantages
TI DACs offer several engineering advantages over competing alternatives. However, not every advantage applies equally across all device families.
Precision and Low Noise in TI DACs
TI precision DACs achieve INL errors below 1 LSB. For example, the DAC81416 delivers 16-bit resolution with low glitch energy. Low noise performance is critical in medical and instrumentation systems. As a result, TI precision DACs are a common choice in these sectors.
Wide Supply Voltage Range
Many TI DACs operate from 1.8 V to 5.5 V. This flexibility simplifies power supply design. Furthermore, some families support dual supplies for dual-polarity output. A single TI DAC family can therefore serve multiple board designs.
Flexible Digital Interfaces for TI DACs
TI DACs support SPI, I2C, and parallel interfaces. SPI devices like the DAC8168 allow daisy-chaining of multiple DACs. I2C devices reduce pin count in space-constrained designs. Choosing the right interface reduces firmware complexity considerably.
Common Application Scenarios for TI DACs
Industrial Process Control
4–20 mA current loops are standard in industrial process control. The DAC8760 integrates a 4–20 mA driver on chip. This reduces external component count and PCB area. In addition, built-in diagnostics improve overall system reliability.
Audio Signal Generation
High-resolution audio requires low total harmonic distortion (THD) and wide dynamic range. TI audio DACs, such as the PCM5102A, target consumer and professional audio systems. They deliver 112 dB dynamic range at low power. This device is therefore common in USB audio interfaces and portable players.
Automated Test Equipment
Automated test equipment (ATE) demands fast-settling, high-accuracy DACs. The DAC38J84 supports output speeds up to 2.5 GSPS for RF signal generation. JESD204B interfaces connect these TI DACs directly to FPGAs. This makes them suitable for radar and communications test platforms.
TI DAC Family Comparison
The table below compares five popular TI DAC families across key criteria. Use this as a starting point, then filter further using TI’s parametric search.
| Family | Resolution | Interface | Key Feature | Best For |
| DAC8xxx | 12 – 16 bit | SPI | Low glitch energy, fast settling | Industrial control, signal generation |
| DAC7xxx | 8 – 12 bit | I2C / SPI | Small package, low power draw | IoT devices, battery systems |
| DAC38Jxx | 14 – 16 bit | JESD204B | Multi-GHz output rate | RF signal generation, ATE, radar |
| PCM51xx | 32 bit audio | I2S | Ultra-low THD+N | Consumer and pro audio |
| DAC8760 | 16 bit | SPI | Integrated 4–20 mA current loop | Industrial process control |
How to Select Texas Instruments DACs
Choosing the right TI DAC follows a structured process. First, define your resolution and accuracy requirements. Second, identify the required output type — voltage or current. Third, match the digital interface to your microcontroller or FPGA.
Also consider power budget and supply voltage early in the design phase. Finally, review TI’s DAC selection guide on
Also consider power budget and supply voltage early in the design phase. Finally, review TI’s DAC selection guide on ti.com for parametric filtering. TI’s WEBENCH tool also assists with reference circuit generation.
Frequently Asked Questions
What Resolution Do I Need for My Design?
Resolution depends on the required output step size. A 12-bit DAC over a 5 V range gives output steps of approximately 1.2 mV. For tighter control, choose 16-bit or higher TI DACs. Therefore, calculate your minimum required step size before selecting a resolution.
How Do I Minimize TI DAC Output Noise?
Use a low-noise reference voltage source. Decouple the VREF pin with 100 nF and 10 µF capacitors in parallel. Keep DAC output traces short and routed away from digital signals. Furthermore, some TI DACs include internal noise filtering to reduce board-level effort.
Can I Use TI DACs in Safety-Critical Systems?
Yes. Several TI DACs meet IEC 61508 and ISO 26262 requirements. For example, the DAC81416 supports functional safety applications. Always review the safety manual TI provides with these devices. In addition, plan for diagnostic test coverage in your firmware.
What Is Glitch Energy and Why Does It Matter?
Glitch energy is the unwanted output transient that occurs during a code change. High glitch energy causes spurious output spikes in sensitive signal chains. TI precision DACs minimize glitch energy through on-chip deglitch circuitry. However, even low-glitch DACs may need an output filter in noise-sensitive designs. A low-pass filter with a cutoff frequency below your signal bandwidth removes residual glitch artifacts effectively.
Conclusion
Texas Instruments DACs cover a wide range of engineering requirements — from low-power I2C devices to multi-GHz RF DACs. However, careful matching of specs to application is essential. Use TI’s parametric search to shortlist candidates, then verify against specific datasheets before committing to a footprint.
Find What You Need on LCSC
Finding the right DAC for your design is straightforward on LCSC. LCSC stocks a wide range of TI DACs and compatible components, from precision voltage-output devices to high-speed RF DACs. You can filter by resolution, interface, and package type. Start browsing the DAC catalogue today.
