Overview
The DAC8551IDGKTG4 from Texas Instruments is a 16-bit, ultralow-glitch, voltage-output digital-to-analog converter (DAC). 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 (at 2.7 V), 160 μA (at 3.6 V to 5.5 V) | μA |
| Supply Current (Power-Down Mode) | 0.2 μA (at 3.6 V to 5.5 V), 0.05 μA (at 2.7 V to 3.6 V) | μA |
| Settling Time | 10 μs to ±0.003% FSR | μs |
| Output Voltage Range | 0 V to VREF | V |
| Reference Voltage Input | 2.5 V ≤ VREF ≤ 5.5 V | V |
| Operating Temperature | -40°C to 105°C | °C |
| Package | 8-Pin VSSOP | |
| Body Size | 3.00 mm × 3.00 mm | mm |
Key Features
- Ultralow-glitch operation with glitch energy of 0.1 nV-s
- MicroPower operation: 140 μA at 2.7 V
- Power-on reset to zero voltage
- Low-power serial interface with Schmitt-Triggered inputs
- On-chip output buffer amplifier with rail-to-rail operation
- Power-down capability reducing current to 200 nA at 5 V
- Binary input coding
- SYNC interrupt facility
- Drop-in compatible with DAC85x1 and DAC8550 (2's complement input)
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 glitch energy of the DAC8551?
The glitch energy of the DAC8551 is 0.1 nV-s.
- What is the power supply range for the DAC8551?
The power supply range for the DAC8551 is 2.7 V to 5.5 V.
- How much current does the DAC8551 consume in normal operation?
The DAC8551 consumes 140 μA at 2.7 V and 160 μA at 3.6 V to 5.5 V in normal operation.
- What is the settling time of the DAC8551?
The settling time of the DAC8551 is 10 μs to ±0.003% FSR.
- What is the output voltage range of the DAC8551?
The output voltage range of the DAC8551 is from 0 V to VREF.
- What is the reference voltage input range for the DAC8551?
The reference voltage input range for the DAC8551 is 2.5 V ≤ VREF ≤ 5.5 V.
- What are the operating temperature ranges for the DAC8551?
The operating temperature range for the DAC8551 is -40°C to 105°C.
- What package options are available for the DAC8551?
The DAC8551 is available in an 8-Pin VSSOP package.
- What are some common applications of the DAC8551?
The DAC8551 is commonly used in process control, data acquisition systems, closed-loop servo-control, PC peripherals, portable instrumentation, and programmable attenuation.
