Overview
The AD5780ACPZ-REEL7, 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 2.5 µs (typical) and is compatible with various data interface protocols such as SPI, QSPI, MICROWIRE, and DSP interfaces. The AD5780ACPZ-REEL7 is packaged in a 24-lead LFCSP (4mm x 5mm with exposed pad) and is suitable for surface mounting.
Key Specifications
| Parameter | Min | Max | Unit | Test Conditions/Comments | |
|---|---|---|---|---|---|
| Resolution | 18 bits | ||||
| Integral Non-Linearity (INL) | ±2 LSB | ||||
| Differential Non-Linearity (DNL) | ±1 LSB | ||||
| Output Noise Spectral Density | 8 nV/√Hz | ||||
| Settling Time | 2.5 µs | ||||
| Analog Supply Voltage | ±7.5 V | ±16.5 V | |||
| Digital Supply Voltage | 2.7 V | 5.5 V | |||
| Operating Temperature Range | -40°C | 125°C | |||
| Reference Input Range (Positive) | 5 V | VDD - 2.5 V | |||
| Reference Input Range (Negative) | VSS + 2.5 V | 0 V | |||
| Output Clamp Feature | Places the output in a defined load state | ||||
Key Features
- True 18-bit voltage output DAC with ±1 LSB INL and ±1 LSB DNL for high accuracy.
- Wide power supply range of up to ±16.5 V for analog supply and 2.7 V to 5.5 V for digital supply.
- Fast settling time of 2.5 µs (typical) for rapid output stabilization.
- Low output noise spectral density of 8 nV/√Hz.
- Compatible with SPI, QSPI, MICROWIRE, and DSP data interfaces for versatile system integration.
- Power-on reset circuit ensuring the DAC output powers up to 0 V in a known output impedance state.
- Output clamp feature for defining the load state of the output.
- R-2R architecture for precise voltage output.
- Operating temperature range from -40°C to 125°C for robust performance in various environments.
Applications
- Industrial automation: Suitable for precise control and measurement in industrial settings.
- Instrumentation: Ideal for high-accuracy data acquisition and measurement systems.
- Automotive testing: Used in automotive test and measurement equipment requiring high precision.
- Precision measurement systems: Applied in various precision measurement applications where high resolution and accuracy are crucial.
Q & A
- What is the resolution of the AD5780ACPZ-REEL7 DAC?
The AD5780ACPZ-REEL7 is a true 18-bit digital-to-analog converter.
- What is the typical settling time of the AD5780ACPZ-REEL7?
The typical settling time is 2.5 µs.
- What are the supported data interfaces for the AD5780ACPZ-REEL7?
The device supports SPI, QSPI, MICROWIRE, and DSP data interfaces.
- What is the operating temperature range of the AD5780ACPZ-REEL7?
The operating temperature range is from -40°C to 125°C.
- What is the output noise spectral density of the AD5780ACPZ-REEL7?
The output noise spectral density is 8 nV/√Hz.
- Does the AD5780ACPZ-REEL7 require external buffers for reference inputs?
No, both reference inputs are buffered on-chip and external buffers are not required.
- What is the package type of the AD5780ACPZ-REEL7?
The device is packaged in a 24-lead LFCSP (4mm x 5mm with exposed pad).
- What are some typical applications of the AD5780ACPZ-REEL7?
Typical applications include industrial automation, instrumentation, automotive testing, and precision measurement systems.
- Does the AD5780ACPZ-REEL7 have a power-on reset feature?
- What is the maximum differential non-linearity (DNL) of the AD5780ACPZ-REEL7?
The maximum DNL is ±1 LSB.
