Overview
The AD5044BRUZ is a fully accurate, quad, 14-bit buffered voltage output nanoDAC® produced by Analog Devices Inc. This device is part of the AD5024/AD5044/AD5064 family and is designed for low power consumption and high precision. It operates from a single 4.5 V to 5.5 V supply and features a versatile 3-wire, low power Schmitt trigger serial interface compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14 | Bits |
| Relative Accuracy (INL) | ±1 | LSB |
| Differential Nonlinearity (DNL) | ±1 | LSB |
| Total Unadjusted Error | <2 | mV |
| Offset Error | ±1.8 | mV |
| Offset Error Temperature Coefficient | ±2 | μV/°C |
| Full-Scale Error | ±0.07 | % FSR |
| Supply Voltage | 4.5 to 5.5 | V |
| Serial Interface Clock Rate | Up to 50 | MHz |
| Package Type | 16-Lead TSSOP | |
| Power Consumption (Power-Down Mode) | Typically 400 nA at 5 V |
Key Features
- Low power consumption with a typical power-down current of 400 nA at 5 V.
- High precision with relative accuracy specifications of ±1 LSB INL and ±1 LSB DNL.
- Individual reference pins for each DAC channel.
- Integrated reference buffers and output amplifiers with rail-to-rail operation.
- Power-on reset circuit ensuring DAC output powers up to zero scale or midscale.
- Software selectable output loads while in power-down mode.
- Compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards.
Applications
- Medical diagnostics: Converting analog signals such as blood pressure, EKG readings, and respiration rates into digital signals for analysis or storage.
- Industrial applications: Monitoring factory machines and equipment by collecting data on pressure, temperature, vibration, and sound.
- Automotive applications: Collecting data on vehicle speed, fuel consumption, and engine performance to improve efficiency and diagnose issues.
- Home automation: Using temperature and humidity sensors to measure environmental conditions and regulate the climate.
Q & A
- What is the resolution of the AD5044BRUZ?
The AD5044BRUZ has a resolution of 14 bits.
- What is the operating voltage range of the AD5044BRUZ?
The AD5044BRUZ operates from a single 4.5 V to 5.5 V supply.
- What is the maximum clock rate of the serial interface?
The serial interface can operate at clock rates up to 50 MHz.
- Does the AD5044BRUZ have integrated reference buffers and output amplifiers?
- What is the power consumption in power-down mode?
The power consumption in power-down mode is typically 400 nA at 5 V.
- Is the AD5044BRUZ compatible with standard SPI and other interfaces?
- What is the total unadjusted error of the AD5044BRUZ?
The total unadjusted error is less than 2 mV.
- Does the AD5044BRUZ have a power-on reset feature?
- What is the package type of the AD5044BRUZ?
The AD5044BRUZ is packaged in a 16-Lead TSSOP.
- What are some common applications of the AD5044BRUZ?
Common applications include medical diagnostics, industrial monitoring, automotive systems, and home automation.
