Overview
The DAC8830ICDRG4, produced by Texas Instruments, is a single, 16-bit, serial-input, voltage-output digital-to-analog converter (DAC). This ultra-low power device operates from a single power supply ranging from 2.7 V to 5.5 V, making it suitable for a variety of applications requiring high precision and low power consumption. The DAC8830 is designed with a power-on reset function, ensuring a known state at startup, and it supports various serial interfaces such as SPI, QSPI, Microwire, and TI DSP interfaces.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Resolution | 16 | bits | |||
| Linearity error | ±0.5 | ±2 | LSB | ||
| Differential linearity error | ±0.5 | ±1 | LSB | ||
| Gain error | TA = +25°C | ±1 | ±5 | LSB | |
| Gain drift | ±0.1 | ppm/°C | |||
| Reference input voltage range | 1.25 | VDD | V | ||
| Power-supply voltage | 2.7 | 5.5 | V | ||
| Power-supply current | VDD = 3 V | 5 | 20 | μA | |
| Temperature range | –40 | +85 | °C |
Key Features
- 16-bit resolution with excellent linearity and low glitch performance.
- Ultra-low power consumption, typically 5 μA at 3 V or 5 V supply.
- Single power supply operation from 2.7 V to 5.5 V.
- Serial interface compatible with SPI, QSPI, Microwire, and TI DSP interfaces, operating up to 50 M-bits/sec.
- Power-on reset function ensuring a known state at startup.
- Segmented DAC architecture with two matched DAC sections for high accuracy.
- Kelvin sense connections for the reference and analog ground on the DAC8831.
- Support for unipolar and bipolar output modes, with the DAC8831 offering additional features for bipolar mode.
Applications
- Portable equipment due to its low power consumption.
- Industrial process control systems requiring high precision and reliability.
- Automatic test equipment for precise signal generation.
- Data acquisition systems where low noise and fast settling times are crucial.
- Optical networking applications that demand high accuracy and stability.
Q & A
- What is the resolution of the DAC8830ICDRG4?
The DAC8830ICDRG4 has a 16-bit resolution.
- What is the operating voltage range of the DAC8830ICDRG4?
The device operates from a single power supply ranging from 2.7 V to 5.5 V.
- What serial interfaces does the DAC8830ICDRG4 support?
The DAC8830ICDRG4 supports SPI, QSPI, Microwire, and TI DSP interfaces.
- What is the typical power consumption of the DAC8830ICDRG4?
The typical power consumption is 5 μA at 3 V or 5 V supply.
- Does the DAC8830ICDRG4 have a power-on reset function?
Yes, the DAC8830ICDRG4 has a power-on reset function ensuring a known state at startup.
- What are the key applications of the DAC8830ICDRG4?
The key applications include portable equipment, industrial process control, automatic test equipment, data acquisition systems, and optical networking.
- How does the DAC8830ICDRG4 handle data transfer?
Data is transferred via a 3-wire serial interface, with data latched into the input register on the rising edge of the SCLK.
- What is the significance of the LDAC pin on the DAC8831?
The LDAC pin allows the DAC latch to be updated asynchronously by bringing LDAC low after CS goes high.
- What is the temperature range for specified performance of the DAC8830ICDRG4?
The specified performance temperature range is from –40°C to +85°C.
- Does the DAC8830ICDRG4 support bipolar output mode?
The DAC8831, a variant of the DAC8830, supports bipolar output mode with additional features.
