Overview
The DAC8551IDGKT is a 16-bit, ultralow-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 DAC8551 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 ensures the DAC output starts at 0 V and remains there until a valid write sequence is executed. The device also includes a power-down feature that reduces current consumption to 200 nA at 5 V, making it suitable for battery-operated equipment.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16-bit | |
| Glitch Energy | 0.1 nV-s | |
| Power Supply | 2.7 V to 5.5 V | |
| Supply Current (Normal Mode) | 140 μA to 250 μA | |
| Supply Current (Power-Down Mode) | 0.2 μA to 2 μA | |
| Settling Time | 10 μs to ±0.003% FSR | |
| Output Voltage Range | 0 V to VREF | |
| Reference Voltage Input | 2.5 V to 5.5 V | |
| Operating Temperature | -40°C to 105°C | |
| Package Type | VSSOP (8-pin) | |
| Body Size | 3.00 mm × 3.00 mm |
Key Features
- MicroPower operation: 140 μA at 2.7 V
- Power-on reset to zero
- On-chip output buffer amplifier with rail-to-rail operation
- Power-down capability reducing current to 200 nA at 5 V
- Low-power serial interface with Schmitt-Triggered inputs
- SYNC interrupt facility
- Drop-in compatible with DAC85x1 and DAC8550 (2's complement input)
- Binary input coding
- Monotonic by design ensuring good linearity and minimizing code-to-code transient voltages
Applications
- Process Control
- Data Acquisition Systems
- Closed-Loop Servo-Control
- PC Peripherals
- Portable Instrumentation
- Programmable Attenuation
Q & A
- What is the resolution of the DAC8551?
The DAC8551 has a resolution of 16 bits.
- What is the typical power consumption of the DAC8551 in normal operation?
The typical power consumption is 140 μA at 2.7 V.
- What is the glitch energy of the DAC8551?
The glitch energy is 0.1 nV-s.
- What is the operating voltage range of the DAC8551?
The operating voltage range is from 2.7 V to 5.5 V.
- Does the DAC8551 have a power-on reset feature?
Yes, the DAC8551 has a power-on reset feature that sets the output to 0 V until a valid write sequence is executed.
- What is the settling time of the DAC8551?
The settling time is 10 μs to ±0.003% FSR.
- Is the DAC8551 compatible with standard serial interfaces?
Yes, it is compatible with standard SPI, QSPI, Microwire, and digital signal processor (DSP) interfaces.
- What is the package type and size of the DAC8551IDGKT?
The package type is VSSOP (8-pin) with a body size of 3.00 mm × 3.00 mm.
- What are some typical applications of the DAC8551?
Typical applications include process control, data acquisition systems, closed-loop servo-control, PC peripherals, portable instrumentation, and programmable attenuation.
- Does the DAC8551 have a power-down mode?
Yes, the DAC8551 has a power-down mode that reduces the current consumption to 200 nA at 5 V.
