Overview
The AD5780ACPZ, manufactured by Analog Devices Inc., is a high-performance 18-bit digital-to-analog converter (DAC) designed for demanding data acquisition applications. This true 18-bit, unbuffered voltage output DAC operates from a bipolar supply of up to 33 V, offering a wide range of operational flexibility. The device features a settling time of 3.5 µs (typical) and supports SPI and DSP data interfaces, making it versatile for various system integrations.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Bits | 18 | True 18-bit resolution | |
| Data Interface | SPI, DSP | Compatible with standard serial peripheral interface and DSP interface standards | |
| Reference Type | External | Positive reference input range: 5 V to VDD - 2.5 V, Negative reference input range: VSS + 2.5 V to 0 V | |
| Operating Temperature | -40°C to 125°C | °C | |
| Voltage - Supply (Analog) | 7.5 V to 16.5 V, -2.5 V to -16.5 V | V | Bipolar supply up to 33 V |
| Voltage - Supply (Digital) | 2.7 V to 5.5 V | V | |
| Settling Time | 3.5 µs (typical) | µs | |
| Integral Non-Linearity (INL) | ±2 LSB (max) | LSB | |
| Differential Non-Linearity (DNL) | ±1 LSB (max) | LSB | |
| Output Type | Voltage - Unbuffered | ||
| Package / Case | 24-VFQFN Exposed Pad, CSP | Surface mount technology |
Key Features
- True 18-bit Accuracy: The AD5780ACPZ offers true 18-bit resolution with a maximum integral non-linearity (INL) of ±2 LSB and a maximum differential non-linearity (DNL) of ±1 LSB.
- Wide Power Supply Range: Operates from a bipolar supply of up to 33 V, with analog supply voltages ranging from 7.5 V to 16.5 V and digital supply voltages from 2.7 V to 5.5 V.
- Fast Settling Time: Typical settling time of 3.5 µs.
- Versatile Data Interface: Compatible with SPI, DSP, QSPI™, and MICROWIRE™ interface standards.
- Power-On Reset and Output Clamp: Ensures the DAC output powers up to 0 V in a known output impedance state and provides an output clamp feature for defined load states.
- High Stability and Linearity: Long-term linearity error stability of ±0.018 ppm/°C and gain error temperature coefficient.
Applications
The AD5780ACPZ is suitable for a wide range of applications, including:
- Industrial Automation: Precise control and measurement in industrial environments.
- Instrumentation: High-accuracy data acquisition and signal processing.
- Automotive Testing: Reliable and precise measurement systems for automotive applications.
- Precision Measurement Systems: Applications requiring high-resolution and accurate voltage output.
Q & A
- What is the resolution of the AD5780ACPZ DAC?
The AD5780ACPZ is a true 18-bit digital-to-analog converter.
- What are the operating temperature ranges for the AD5780ACPZ?
The device operates from -40°C to 125°C.
- What are the analog and digital supply voltage ranges for the AD5780ACPZ?
The analog supply voltages range from 7.5 V to 16.5 V and -2.5 V to -16.5 V, while the digital supply voltages range from 2.7 V to 5.5 V.
- What data interfaces does the AD5780ACPZ support?
The AD5780ACPZ supports SPI, DSP, QSPI™, and MICROWIRE™ interface standards.
- What is the typical settling time of the AD5780ACPZ?
The typical settling time is 3.5 µs.
- What is the maximum integral non-linearity (INL) and differential non-linearity (DNL) of the AD5780ACPZ?
The maximum INL is ±2 LSB and the maximum DNL is ±1 LSB.
- Does the AD5780ACPZ have a power-on reset feature?
Yes, the device includes a power-on reset circuit that ensures the DAC output powers up to 0 V in a known output impedance state.
- What is the package type of the AD5780ACPZ?
The device is packaged in a 24-VFQFN exposed pad package (CSP) suitable for surface mounting.
- What are some typical applications of the AD5780ACPZ?
Typical applications include industrial automation, instrumentation, automotive testing, and precision measurement systems.
- Is the AD5780ACPZ compliant with industry standards and reliability requirements?
Yes, the device adheres to industry standards and reliability requirements, ensuring high quality and reliability.
- Does the AD5780ACPZ have an output clamp feature?
Yes, the device provides an output clamp feature that places the output in a defined load state.
