Overview
The AD5545BRU is a high-performance, 16-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is designed for precision instrumentation, industrial automation, and telecommunications applications. It features a dual DAC configuration, each with a 16-bit resolution, and operates from a single 5 V supply. The AD5545BRU is packaged in a compact 16-lead TSSOP package and can operate over a temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits | 16 | |
| Number of D/A Converters | 2 | |
| Settling Time | 500 ns (Typ) | |
| Output Type | Current - Unbuffered | |
| Differential Output | No | |
| Data Interface | SPI | |
| Reference Type | External | |
| Voltage Supply, Analog | 5 V | |
| Voltage Supply, Digital | 5 V | |
| INL/DNL (LSB) | ±2 (Max), ±1 (Max) | |
| Architecture | R-2R | |
| Operating Temperature | -40°C ~ 85°C | |
| Package / Case | 16-TSSOP (0.173, 4.40mm Width) | |
| Mounting Type | Surface Mount |
Key Features
- Dual 16-Bit DACs: The AD5545BRU features two 16-bit DACs, providing high resolution for precise analog signal generation.
- External Reference: An external reference is required to establish the full-scale output current, allowing for flexible and accurate output control.
- High-Speed SPI Interface: A 3-wire SPI interface enables high-speed data transfer and is compatible with microcontrollers.
- Internal Feedback Resistor: An internal feedback resistor (RFB) enhances resistance and temperature tracking when used with an external op-amp for I-to-V conversion.
- Power-On and Dynamic Reset: The internal reset logic allows for power-on preset and dynamic reset to either zero or midscale, depending on the state of the MSB pin.
- Compact Packaging: The component is packaged in a compact 16-lead TSSOP, making it suitable for space-constrained designs.
Applications
- Precision Instrumentation: Used in waveform generators, programmable voltage sources, and other precision measurement and control instruments.
- Industrial Automation: Employed in industrial control systems, including PLCs and programmable attenuators.
- Automatic Test Equipment: Utilized in automated testing and calibration systems.
- Telecommunications: Applied in various telecommunications equipment requiring precise analog signal generation.
- Digitally Controlled Calibration: Used for calibration purposes in various electronic systems.
Q & A
- What is the resolution of the AD5545BRU DAC?
The AD5545BRU has a resolution of 16 bits.
- How many DACs are included in the AD5545BRU?
The AD5545BRU includes two 16-bit DACs.
- What is the typical settling time of the AD5545BRU?
The typical settling time is 500 ns.
- What type of data interface does the AD5545BRU use?
The AD5545BRU uses a 3-wire SPI interface.
- What is the operating temperature range of the AD5545BRU?
The operating temperature range is -40°C to 85°C.
- Does the AD5545BRU require an external reference?
- What is the package type of the AD5545BRU?
The AD5545BRU is packaged in a 16-lead TSSOP.
- Can the AD5545BRU be used in industrial automation?
- How does the internal reset logic work in the AD5545BRU?
The internal reset logic allows for power-on preset and dynamic reset to either zero or midscale, depending on the state of the MSB pin.
- What are some common applications of the AD5545BRU?
