Overview
The AD7869JRZ, produced by Analog Devices Inc., is a comprehensive 14-bit analog I/O system integrated into a single chip. This component includes a 14-bit Analog-to-Digital Converter (ADC) with a track-and-hold amplifier and a 14-bit Digital-to-Analog Converter (DAC) with an output amplifier. The device also features on-chip voltage references for both the ADC and DAC, ensuring high precision and stability. The AD7869JRZ is designed to operate from ±5 V power supplies and has an analog input/output range of ±3 V, making it suitable for a variety of applications requiring high-resolution analog I/O operations.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Resolution | 14 bits | Resolution for both ADC and DAC |
| Throughput Rate | 83 kHz | Combined throughput rate for ADC |
| Settling Time (DAC) | 4 µs to 14 bits | Settling time for the DAC output amplifier |
| Power Supply | ±5 V | Operating voltage range |
| Analog Input/Output Range | ±3 V | Range for ADC and DAC operations |
| Package Type | 28-pin SOIC | Package type and pin count |
| Signal-to-Noise Ratio (SNR) | Specified for ac parameters | Includes dynamic specifications like SNR and harmonic distortion |
| RoHS Status | RoHS Compliant | Compliance with RoHS regulations |
Key Features
- Complete 14-Bit I/O System: Includes a 14-bit ADC with a track-and-hold amplifier and a 14-bit DAC with an output amplifier.
- On-Chip Voltage References: Temperature-compensated 3 V buried Zener references for precision operations.
- Dynamic Specifications: Specified for ac parameters such as signal-to-noise ratio and harmonic distortion.
- Serial Interface: Minimizes pin count with serial interfacing to most DSP machines.
- Low Power Consumption: Typical power consumption of 130 mW.
- Compact Package: Available in 24-pin DIP and 28-pin SOIC packages.
Applications
- Digital Signal Processing: Suitable for various DSP applications.
- Speech Recognition and Synthesis: Used in speech processing systems.
- Spectrum Analysis: Applicable in spectrum analysis and other high-frequency applications.
- High Speed Modems: Used in high-speed data transmission systems.
- DSP Servo Control: Employed in servo control systems requiring precise analog I/O operations.
Q & A
- What is the resolution of the AD7869JRZ ADC and DAC?
The AD7869JRZ has a 14-bit resolution for both the ADC and DAC.
- What is the throughput rate of the ADC?
The combined throughput rate for the ADC is 83 kHz.
- What is the settling time for the DAC output amplifier?
The settling time for the DAC output amplifier is 4 µs to 14 bits.
- What are the operating power supply voltages for the AD7869JRZ?
The device operates from ±5 V power supplies.
- What is the analog input/output range for the AD7869JRZ?
The analog input/output range is ±3 V.
- What type of package is the AD7869JRZ available in?
The AD7869JRZ is available in a 28-pin SOIC package.
- Is the AD7869JRZ RoHS compliant?
Yes, the AD7869JRZ is RoHS compliant.
- What are some of the key applications of the AD7869JRZ?
Key applications include digital signal processing, speech recognition and synthesis, spectrum analysis, high-speed modems, and DSP servo control.
- How does the AD7869JRZ interface with other devices?
The AD7869JRZ interfaces through a serial interface, minimizing pin count and allowing easy connection to most DSP machines.
- What are the on-chip voltage references used for?
The on-chip voltage references are temperature-compensated 3 V buried Zener references, providing precision references for both the ADC and DAC.
