Overview
The DAC8550IBDGKR is a 16-bit, ultra-low glitch, voltage output digital-to-analog converter (DAC) produced by Texas Instruments. This device is designed to be small, low-power, and highly linear, making it ideal for applications requiring precise analog output. The DAC8550 uses a versatile 3-wire serial interface compatible with standard SPI, QSPI, Microwire, and digital signal processor (DSP) interfaces, operating at clock rates up to 30 MHz. It features a power-on reset circuit that sets the output to midscale during power-up and remains there until a valid write sequence is executed. The device is available in a tiny MSOP-8 package, making it suitable for portable and battery-operated equipment due to its low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 | Bits |
| Relative Accuracy | ±16 LSB | - |
| Glitch Energy | 0.1 | nV-s |
| Power Supply Range | 2.7 V to 5.5 V | V |
| Power Consumption (Normal Mode) | 140 μA at 2.7 V | A |
| Power Consumption (Power-Down Mode) | < 1 μW at 5 V | W |
| Settling Time | 10 μs to ±0.003% FSR | s |
| Output Amplifier Slew Rate | 1.8 V/μs | V/s |
| Package Type | MSOP-8 | - |
Key Features
- Ultra-low glitch energy of 0.1 nV-s
- MicroPower operation with 140 μA at 2.7 V
- Power-on reset to midscale
- Low-power serial interface with Schmitt-Triggered inputs
- On-chip output buffer amplifier with rail-to-rail output
- Power-down capability reducing current to 200 nA at 5 V
- 2's complement input coding
- SYNC interrupt facility
- Drop-in compatible with DAC8531/01 and DAC8551 (binary input)
- Available in a tiny MSOP-8 package
Applications
- Process Control
- Data Acquisition Systems
- Closed-Loop Servo-Control
- PC Peripherals
- Portable Instrumentation
- Programmable Attenuation
Q & A
- What is the resolution of the DAC8550?
The DAC8550 has a resolution of 16 bits.
- What is the typical power consumption of the DAC8550 at 2.7 V?
The typical power consumption is 140 μA at 2.7 V.
- What is the glitch energy of the DAC8550?
The glitch energy is 0.1 nV-s.
- What is the power supply range for the DAC8550?
The power supply range is from 2.7 V to 5.5 V.
- Does the DAC8550 have a power-on reset feature?
- What is the settling time of the DAC8550?
The settling time is 10 μs to ±0.003% FSR.
- Is the DAC8550 compatible with standard serial interfaces?
- What is the slew rate of the output amplifier?
The slew rate of the output amplifier is 1.8 V/μs.
- Does the DAC8550 support power-down modes?
- In what package is the DAC8550 available?
The DAC8550 is available in an MSOP-8 package.
