Overview
The DAC7811IDGSG4 is a 12-bit, single-channel, serial input multiplying digital-to-analog converter (DAC) produced by Texas Instruments. This CMOS device operates from a 2.7-V to 5.5-V 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 also includes a serial data out pin (SDO) for daisy-chaining multiple devices and a readback function to read the contents of the DAC register via the SDO pin. On power-up, the internal shift register and latches are filled with zeroes, and the DAC outputs are at zero scale.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 12 | - | - | Bits |
| Supply Voltage | 2.7 | - | 5.5 | V |
| Serial Interface Frequency | - | - | 50 | MHz |
| Multiplying Bandwidth | - | - | 10 | MHz |
| Reference Input Voltage | -15 | - | 15 | V |
| Glitch Energy | - | - | 5 | nV-s |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | - | - | 10-lead VSSOP |
| Relative Accuracy | ±1 | - | - | LSB |
| Differential Nonlinearity | ±1 | - | - | LSB |
| Output Leakage Current (at 25°C) | ±5 | - | - | nA |
| Output Leakage Current (at TMAX) | ±25 | - | - | nA |
| Full-Scale Gain Error | ±5 | - | ±10 | mV |
| Full-Scale Temperature Coefficient | ±5 | - | - | ppm/°C |
Key Features
- 2.7-V to 5.5-V supply operation
- 50-MHz serial interface compatible with SPI, QSPI, MICROWIRE, and most DSP interface standards
- 10-MHz multiplying bandwidth
- ±15-V reference input voltage
- Low glitch energy: 5 nV-s
- Extended temperature range: –40°C to +125°C
- 12-bit monotonic performance
- 4-quadrant multiplication
- Power-on reset with brownout detection
- Daisy-chain mode
- Readback function
- Industry-standard pin configuration
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 DAC7811?
The DAC7811 has a resolution of 12 bits.
- What is the operating voltage range of the DAC7811?
The DAC7811 operates from a 2.7-V to 5.5-V power supply.
- What is the maximum frequency of the serial interface?
The serial interface can operate up to 50 MHz.
- What is the multiplying bandwidth of the DAC7811?
The multiplying bandwidth is 10 MHz.
- What is the range of the reference input voltage?
The reference input voltage can range from –15 V to +15 V.
- What is the glitch energy of the DAC7811?
The glitch energy is 5 nV-s.
- What is the operating temperature range of the DAC7811?
The operating temperature range is –40°C to +125°C.
- Does the DAC7811 support daisy-chaining?
Yes, the DAC7811 supports daisy-chaining through the SDO pin.
- What is the package type of the DAC7811?
The DAC7811 is available in a 10-lead VSSOP package.
- What are some common applications of the DAC7811?
Common applications include portable battery-powered instruments, waveform generators, analog processing, programmable amplifiers and attenuators, and more.
- Does the DAC7811 have a power-on reset feature?
Yes, the DAC7811 has a power-on reset feature with brownout detection.
