Overview
The AD7849CRZ-REEL is a high-performance, 16-bit, single-channel digital-to-analog converter (DAC) produced by Analog Devices Inc. This component features a serial input interface and is designed to ensure excellent differential linearity performance up to 16 bits across specified temperature ranges. The DAC architecture guarantees monotonicity and provides a versatile serial interface, making it suitable for various industrial and instrumentation applications. During power-up and power-down sequences, the output is clamped to 0V to prevent shorting, and the DAC can be reset to 0V in both unipolar and bipolar output ranges.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Resolution | 16 bits | - | - |
| Analog Supply Voltage | ±14.25V to ±15.75V | V | - |
| Digital Supply Voltage | 5V | V | - |
| Settling Time | 10 μs (typ) | μs | - |
| Integral Nonlinearity (INL) | ±3 LSB (bipolar) | LSB | -40°C to +85°C |
| Differential Nonlinearity (DNL) | ±0.5 LSB (max) | LSB | -40°C to +85°C |
| Gain Error | ±4 LSB (typ) | LSB | VOUT load = 10 MΩ, -40°C to +85°C |
| Offset Temperature Coefficient | ±2 ppm FSR/°C (typ) | ppm/°C | -40°C to +85°C |
| Package | 20-lead SOIC-W | - | - |
| Operating Temperature Range | -40°C to +85°C | °C | - |
Key Features
- 16-bit resolution with guaranteed monotonicity up to 16 bits for all grades.
- Excellent differential linearity performance.
- Output control on power-up and power-down with internal or external control.
- Versatile serial interface compatible with SPI and opto-isolator applications.
- DAC clears to 0V in both unipolar and bipolar output ranges.
- Buffered voltage output with external reference capability.
- Fast settling time of 10 μs (typical) for high-speed data acquisition systems.
- Industrial-grade component with an extended temperature range.
- Robust SOIC package for reliable surface mount assembly.
Applications
- Industrial process controls.
- PC analog I/O boards.
- Instrumentation.
- Test and measurement equipment.
- Medical instrumentation.
- Research and development.
Q & A
- What is the resolution of the AD7849CRZ-REEL? The AD7849CRZ-REEL has a resolution of 16 bits.
- What is the analog supply voltage range for the AD7849CRZ-REEL? The analog supply voltage range is ±14.25V to ±15.75V.
- What is the typical settling time of the AD7849CRZ-REEL? The typical settling time is 10 μs.
- What type of package does the AD7849CRZ-REEL come in? The AD7849CRZ-REEL comes in a 20-lead SOIC-W package.
- What are the operating temperature ranges for the AD7849CRZ-REEL? The operating temperature range is -40°C to +85°C.
- How is the output controlled during power-up and power-down sequences? The output is clamped to 0V via a low-impedance path during power-up and power-down sequences.
- What types of applications is the AD7849CRZ-REEL suitable for? It is suitable for industrial process controls, PC analog I/O boards, instrumentation, test and measurement equipment, medical instrumentation, and research and development.
- What is the differential nonlinearity of the AD7849CRZ-REEL? The differential nonlinearity is ±0.5 LSB (max) over the specified temperature range.
- Can the AD7849CRZ-REEL be used in multichannel systems? Yes, it can be used in multichannel systems with its daisy-chain capability.
- What is the gain error of the AD7849CRZ-REEL? The gain error is ±4 LSB (typ) at 25°C with a VOUT load of 10 MΩ.
