Overview
The AD7840JPZ-REEL, produced by Analog Devices Inc., is a complete 14-bit CMOS Digital-to-Analog Converter (DAC). This component is part of the AD7840 family and is packaged in a 28-terminal plastic leaded chip carrier (PLCC). The AD7840 is designed for high-speed and precision applications, featuring a 14-bit DAC, a 3V buried Zener reference, a DAC output amplifier, and high-speed control logic. It supports both parallel and serial data input modes, making it versatile for various system architectures.
Key Specifications
| Parameter | Value | Units | Test Conditions/Comments |
|---|---|---|---|
| Resolution | 14 bits | - | - |
| Analog Output Range | ±3 V | V | - |
| Signal to Noise Ratio (SNR) | 76 dB min | dB | VOUT = 1 kHz Sine Wave, fSAMPLE = 100 kHz |
| Total Harmonic Distortion (THD) | -78 dB max | dB | VOUT = 1 kHz Sine Wave, fSAMPLE = 100 kHz |
| Peak Harmonic or Spurious Noise | -78 dB max | dB | VOUT = 1 kHz Sine Wave, fSAMPLE = 100 kHz |
| Data Setup Time | 21 ns | ns | - |
| Maximum Serial Data Clock Rate | 6 MHz | MHz | - |
| Package Type | 28-terminal PLCC | - | - |
Key Features
- Double-Buffered Interface Logic: Features a 14-bit input latch and a 14-bit DAC latch, allowing for efficient data transfer.
- High-Speed Data Transfer: Supports parallel and serial data input modes with a fast data setup time of 21 ns and a maximum serial data clock rate of 6 MHz.
- On-Chip Reference: Includes a 3V buried Zener reference that is temperature compensated and factory trimmed to ±10 mV.
- Dynamic Performance: Fully specified for dynamic performance parameters such as signal-to-noise ratio and harmonic distortion.
- Advanced Fabrication Process: Fabricated in linear compatible CMOS (LC2MOS), combining precision bipolar circuits with low power CMOS logic.
Applications
- Industrial Control Systems: Suitable for applications requiring precise analog output control.
- Aerospace and Defense: Used in systems where high reliability and precision are critical.
- Medical Equipment: Ideal for medical devices that require accurate analog signal generation.
- Audio and Video Systems: Can be used in high-fidelity audio and video systems to generate precise analog signals.
Q & A
- What is the resolution of the AD7840JPZ-REEL?
The AD7840JPZ-REEL has a resolution of 14 bits.
- What is the analog output range of the AD7840JPZ-REEL?
The analog output range is ±3 V.
- What are the supported data input modes for the AD7840JPZ-REEL?
The component supports both parallel and serial data input modes.
- What is the maximum serial data clock rate for the AD7840JPZ-REEL?
The maximum serial data clock rate is 6 MHz.
- Does the AD7840JPZ-REEL have an on-chip reference voltage?
- What is the typical signal-to-noise ratio (SNR) of the AD7840JPZ-REEL?
The typical SNR is 82 dB at +25°C for 0 < VOUT < 20 kHz.
- What is the package type of the AD7840JPZ-REEL?
The component is packaged in a 28-terminal plastic leaded chip carrier (PLCC).
- Is the AD7840JPZ-REEL suitable for high-speed applications?
- What fabrication process is used for the AD7840JPZ-REEL?
- What are some typical applications of the AD7840JPZ-REEL?
