Overview
The AD7849BRZ-REEL is a high-performance, 14-bit/16-bit serial input multiplying digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is designed to offer excellent differential linearity performance and guaranteed monotonicity to 14 bits for the A grade and to 16 bits for all other grades over specified temperature ranges. The AD7849 features a versatile serial interface, making it suitable for a variety of industrial and instrumentation applications.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Resolution | 14-bit/16-bit | - | - |
| Settling Time | 10 μs (typical) | μs | - |
| Analog Supply Range | ±14.25V to ±15.75V | V | - |
| Digital Supply Range | 4.75V to 5.25V | V | - |
| Integral/Differential Nonlinearity | ±8 LSB (max) | LSB | - |
| Output Resistance | 0.3 Ω (typical) | Ω | - |
| Short-Circuit Current | ±25 mA (typical) | mA | - |
| Input High Voltage | 2.4 V (min) | V | - |
| Input Low Voltage | 0.8 V (max) | V | - |
| Input Current | ±10 μA (max) | μA | - |
| Input Capacitance | 10 pF (max) | pF | - |
Key Features
- High-performance 14-bit/16-bit DAC with excellent differential linearity and guaranteed monotonicity.
- Wide analog supply range of ±14.25V to ±15.75V and digital supply range of 4.75V to 5.25V.
- Fast settling time of 10 μs (typical) for high-speed data acquisition systems.
- Buffered voltage output with external reference capability.
- Versatile serial interface with SPI compatibility for easy digital control.
- Output control on power-up and power-down sequences to ensure stability.
- Robust SOIC package for reliable surface mount assembly.
- Industrial-grade component with extended temperature range.
Applications
- Industrial process controls and automation.
- PC analog I/O boards.
- Instrumentation and test and measurement equipment.
- Medical instrumentation.
- Research and development.
Q & A
- What is the resolution of the AD7849BRZ-REEL?
The AD7849BRZ-REEL has a resolution of 14-bit/16-bit.
- What is the typical settling time of the AD7849BRZ-REEL?
The typical settling time is 10 μs.
- What is the analog supply range of the AD7849BRZ-REEL?
The analog supply range is ±14.25V to ±15.75V.
- What is the digital supply range of the AD7849BRZ-REEL?
The digital supply range is 4.75V to 5.25V.
- Does the AD7849BRZ-REEL have guaranteed monotonicity?
- What type of package does the AD7849BRZ-REEL come in?
The AD7849BRZ-REEL comes in a 20-pin SOIC (Wide) package.
- Is the AD7849BRZ-REEL suitable for industrial applications?
- How does the AD7849BRZ-REEL handle power-up and power-down sequences?
The AD7849BRZ-REEL has a feature to ensure output stability during power-up and power-down sequences, clamping the VOUT pin to 0 V via a low impedance path.
- Can the AD7849BRZ-REEL be used in multichannel systems?
- What is the typical output resistance of the AD7849BRZ-REEL?
The typical output resistance is 0.3 Ω.
