Overview
The DAC7811IDGSRG4, produced by Texas Instruments, is a CMOS, 12-bit, current output digital-to-analog converter (DAC). This device operates from a 2.7V to 5.5V power supply, making it suitable for battery-powered and various other applications. It features a double-buffered 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards. The DAC7811 offers excellent 4-quadrant multiplication characteristics with a large signal multiplying bandwidth of 10 MHz. It is available in a 10-lead VSSOP package and includes features such as power-on reset with brownout detection, daisy-chain mode, and a readback function.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | 12 | Bits | |||
| Relative Accuracy | ±1 | LSB | |||
| Differential Nonlinearity | ±1 | LSB | |||
| Output Leakage Current (Data = 0000h, TA = 25°C) | ±5 | ±25 | nA | ||
| Full-Scale Gain Error | All ones loaded to DAC register | ±5 | ±10 | mV | |
| Full-Scale Tempco | ±5 | ppm/°C | |||
| VDD Range | 2.7 | 5.5 | V | ||
| VREF Range | -15 | 15 | V | ||
| Serial Interface Frequency | 50 | MHz | |||
| Multiplying Bandwidth | 10 | MHz | |||
| Operating Temperature Range | -40 | 125 | °C |
Key Features
- 12-bit resolution with R-2R ladder configuration and segmented three MSBs
- 2.7V to 5.5V power supply operation, suitable for battery-powered applications
- 50MHz serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards
- 10MHz multiplying bandwidth and ±15V reference input
- Low glitch energy: 5nV-s
- Extended temperature range: -40°C to +125°C
- Power-on reset with brownout detection and daisy-chain mode
- Readback function to read the contents of the DAC register via the SDO pin
- Industry-standard pin configuration and available in 10-lead VSSOP package
Applications
- Portable battery-powered instruments
- Waveform generators
- Analog processing
- Programmable amplifiers and attenuators
- Digitally controlled calibration
- Programmable filters and oscillators
- Composite video
- Ultrasound
Q & A
- What is the resolution of the DAC7811IDGSRG4?
The DAC7811IDGSRG4 has a 12-bit resolution.
- What is the operating voltage range of the DAC7811IDGSRG4?
The device operates from a 2.7V to 5.5V power supply.
- What is the maximum frequency of the serial interface?
The serial interface can operate up to 50MHz.
- What is the multiplying bandwidth of the DAC7811IDGSRG4?
The multiplying bandwidth is 10MHz.
- What is the temperature range for the DAC7811IDGSRG4?
The device operates over a temperature range of -40°C to +125°C.
- Does the DAC7811IDGSRG4 support daisy-chaining?
Yes, it supports daisy-chaining with multiple devices using the SDO pin.
- What is the package type of the DAC7811IDGSRG4?
The device is available in a 10-lead VSSOP package.
- Does the DAC7811IDGSRG4 have a power-on reset feature?
Yes, it includes a power-on reset with brownout detection.
- Can the DAC register contents be read back?
Yes, the contents of the DAC register can be read back via the SDO pin.
- What are some common applications of the DAC7811IDGSRG4?
Common applications include portable battery-powered instruments, waveform generators, analog processing, and more.
