Overview
The AD7868BRZ, produced by Analog Devices Inc., is a comprehensive 12-bit analog input/output system. This integrated circuit combines a 12-bit analog-to-digital converter (ADC) with a track-and-hold amplifier and a 12-bit digital-to-analog converter (DAC) with an output amplifier. The device also includes on-chip voltage references for both the ADC and DAC, ensuring high precision and stability. It operates from ±5 V power supplies and features a small 24-pin or 28-pin package, making it suitable for various applications requiring high-speed and precise analog I/O operations.
Key Specifications
| Parameter | Value | Conditions/Comments |
|---|---|---|
| ADC Resolution | 12 bits | |
| ADC Throughput Rate | 83 kHz | |
| Signal-to-Noise Ratio (SNR) | 72 dB | |
| DAC Resolution | 12 bits | |
| DAC Settling Time | 3 µs to 12 bits | |
| Power Supplies | ±5 V | |
| Power Consumption | 130 mW (typ) | |
| Package Types | 24-pin DIP, 28-pin SOIC | |
| Analog Input/Output Range | ±3 V |
Key Features
- Complete 12-bit I/O system with ADC and DAC.
- ADC with track-and-hold amplifier and 83 kHz throughput rate.
- DAC with output buffer amplifier and 3 µs settling time.
- On-chip voltage references for both ADC and DAC.
- Serial interface for minimizing pin count.
- Low power consumption of 130 mW (typ).
- Operates from ±5 V power supplies with an analog input/output range of ±3 V.
- Available in 24-pin DIP and 28-pin SOIC packages.
Applications
- Digital Signal Processing (DSP).
- Speech Recognition and Synthesis.
- Spectrum Analysis.
- High Speed Modems.
- DSP Servo Control.
Q & A
- What is the resolution of the ADC and DAC in the AD7868BRZ?
The AD7868BRZ features both a 12-bit ADC and a 12-bit DAC.
- What is the throughput rate of the ADC?
The ADC has a throughput rate of 83 kHz.
- What is the settling time of the DAC?
The DAC has a settling time of 3 µs to 12 bits.
- What are the power supply requirements for the AD7868BRZ?
The device operates from ±5 V power supplies.
- What is the typical power consumption of the AD7868BRZ?
The typical power consumption is 130 mW.
- What types of packages are available for the AD7868BRZ?
The device is available in 24-pin DIP and 28-pin SOIC packages.
- What is the analog input/output range of the AD7868BRZ?
The analog input/output range is ±3 V.
- Does the AD7868BRZ have on-chip voltage references?
Yes, it includes separate on-chip voltage references for both the ADC and DAC.
- What kind of interface does the AD7868BRZ use?
The device uses a serial interface to minimize pin count.
- What are some typical applications of the AD7868BRZ?
Typical applications include Digital Signal Processing, Speech Recognition and Synthesis, Spectrum Analysis, High Speed Modems, and DSP Servo Control.
