Overview
The AD1866RZ, produced by Analog Devices Inc., is a complete dual 16-bit Digital-to-Analog Converter (DAC) designed to offer excellent performance with a single +5 V power supply. Fabricated using Analog Devices’ ABCMOS wafer fabrication process, this monolithic chip integrates CMOS logic elements, bipolar and MOS linear elements, and laser-trimmed, thin-film resistor elements. The careful design and layout techniques result in low distortion, low noise, high channel separation, and low power dissipation, making it an ideal choice for various audio applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16-bit |
| Power Supply | 4.75 V to 5.25 V |
| Maximum Clock Input Frequency | 13.5 MHz |
| Gain Error | ±3% of FSR |
| Gain Matching | ±3% of FSR |
| Midscale Error | ±30 mV |
| Midscale Error Matching | ±10 mV |
| Gain Linearity Error | ±3 dB |
| Gain Drift | ±100 ppm/°C |
| Midscale Drift | –130 µV/°C |
| Total Harmonic Distortion + Noise (0 dB, 990.5 Hz) | 0.005% (AD1866R) |
| Channel Separation (1 kHz, 0 dB) | 115 dB |
| Signal-to-Noise Ratio (With A-Weight Filter) | 95 dB |
| Output Voltage Range | ±1 V (±3%) |
| Output Impedance | 0.1 Ω |
| Load Current | ±1 mA |
| Bias Voltage Output Range | +2.5 V |
| Bias Voltage Output Impedance | 350 Ω |
| Power Dissipation | 50 mW to 70 mW |
| Operating Temperature Range | –35°C to 85°C |
| Storage Temperature Range | –60°C to 100°C |
Key Features
- Single +5 V Power Supply: Operates with a single power supply, simplifying system design.
- High Performance: Offers low distortion, low noise, and high channel separation.
- Segmented and R-2R Architecture: The DACs use a combination of segmented and R-2R architecture for good integral and differential linearity.
- Laser-Trimmed Resistors: Resistors are laser-trimmed to provide extremely low total harmonic distortion.
- Low Power Dissipation: Designed for low power consumption, contributing to overall system efficiency.
- CMOS Logic Elements: Includes CMOS logic gates for high switching speeds and low power consumption.
- No Deglitcher or Trimming Circuitry Required: Simplifies the design and implementation process.
Applications
- Multimedia Workstations: Ideal for high-quality audio output in multimedia applications.
- PC Audio Add-In Boards: Suitable for audio cards and sound systems in personal computers.
- Portable CD and DAT Players: Used in portable audio devices for high-quality audio reproduction.
- Automotive CD and DAT Players: Applied in automotive audio systems for reliable and high-performance audio.
- Noise Cancellation Systems: Can be used in noise cancellation systems due to its low noise and high channel separation characteristics.
Q & A
- What is the resolution of the AD1866RZ DAC?
The AD1866RZ is a 16-bit DAC.
- What is the operating power supply range for the AD1866RZ?
The AD1866RZ operates with a power supply range of 4.75 V to 5.25 V.
- What is the maximum clock input frequency for the AD1866RZ?
The maximum clock input frequency is 13.5 MHz.
- What is the total harmonic distortion + noise (THD+N) at 0 dB, 990.5 Hz for the AD1866RZ?
The THD+N at 0 dB, 990.5 Hz is 0.005% for the AD1866R.
- What is the channel separation at 1 kHz, 0 dB for the AD1866RZ?
The channel separation at 1 kHz, 0 dB is 115 dB.
- Does the AD1866RZ require a deglitcher or trimming circuitry?
No, the AD1866RZ does not require a deglitcher or trimming circuitry.
- What is the output voltage range of the AD1866RZ?
The output voltage range is ±1 V (±3%).
- What are the typical applications of the AD1866RZ?
The AD1866RZ is typically used in multimedia workstations, PC audio add-in boards, portable CD and DAT players, automotive CD and DAT players, and noise cancellation systems.
- What is the operating temperature range for the AD1866RZ?
The operating temperature range is –35°C to 85°C.
- What is the storage temperature range for the AD1866RZ?
The storage temperature range is –60°C to 100°C.
