Overview
The DAC7552IRGTRG4 from Texas Instruments is a 12-bit dual ultralow glitch voltage output digital-to-analog converter (DAC). This component is designed to offer exceptional linearity and monotonicity, making it suitable for high-precision applications. The DAC7552 operates from a single 2.7-V to 5.5-V supply and features low power consumption, with a maximum current draw of 440 µA. It also includes a power-on reset to zero scale and per-channel power down capability, reducing power consumption to 2 µA in power-down mode.
Key Specifications
| Parameter | Min | Max | Units | |
|---|---|---|---|---|
| Resolution | 12 bits | |||
| Supply Voltage | 2.7 | 5.5 | V | |
| Output Voltage Range | 0 | VREF | V | |
| Settling Time | 5 | µs | ||
| Slew Rate | 1.8 | V/µs | ||
| Glitch Energy | 0.1 | nV-s | ||
| Channel-to-Channel Crosstalk | -100 | dB | ||
| Power Consumption | 440 | µA | ||
| Power-Down Current | 2 | µA | ||
| Serial Interface Clock Rate | 50 | MHz | ||
Key Features
- Exceptional linearity and monotonicity with integral linearity error typically within ±0.35 LSB and differential linearity error within ±0.08 LSB.
- Ultralow glitch energy of 0.1 nV-s and low crosstalk of -100 dB.
- Low power consumption with a maximum of 440 µA and per-channel power down to 2 µA.
- Power-on reset to zero scale and asynchronous hardware clear.
- SPI-compatible serial interface operating up to 50 MHz, compatible with QSPI, Microwire, and DSP interface standards.
- Daisy-chain capability and simultaneous or sequential update of DAC outputs.
- Output amplifiers can drive a 2-kΩ, 200-pF load with a 5-µs settling time.
Applications
- Precision industrial control: The DAC7552 is suitable for control loops requiring high accuracy and speed, supporting high-voltage control circuit designs.
- Waveform generation: Ideal for generating waveforms from DC to 10 kHz due to its exceptional linearity, low glitch, and low crosstalk.
- Automotive and aerospace: Where high precision and reliability are critical.
- Medical devices: For applications requiring precise analog output signals.
- Test and measurement equipment: Where accuracy and stability of the analog output are essential.
Q & A
- What is the resolution of the DAC7552? The DAC7552 has a 12-bit resolution.
- What is the operating voltage range of the DAC7552? The DAC7552 operates from a single 2.7-V to 5.5-V supply.
- What is the settling time of the DAC7552? The settling time is 5 µs.
- How much power does the DAC7552 consume? The maximum power consumption is 440 µA, and it can be reduced to 2 µA in power-down mode.
- What is the glitch energy of the DAC7552? The glitch energy is 0.1 nV-s.
- Is the DAC7552 compatible with SPI? Yes, the DAC7552 has an SPI-compatible serial interface operating up to 50 MHz.
- Can the DAC7552 be daisy-chained? Yes, the DAC7552 supports daisy-chain operation.
- What is the typical integral linearity error of the DAC7552? The integral linearity error is typically within ±0.35 LSB.
- What is the typical differential linearity error of the DAC7552? The differential linearity error is typically within ±0.08 LSB.
- How does the DAC7552 handle power-on reset? The DAC7552 has a power-on reset to zero scale.
