Overview
The AD1851R-REEL7, produced by Analog Devices Inc., is a 16-bit monolithic PCM (Pulse Code Modulation) audio DAC (Digital-to-Analog Converter). This device is part of the AD1851 series, which includes the AD1851 and AD1861 models, with the AD1851 being a 16-bit device and the AD1861 being an 18-bit device. The AD1851R-REEL7 is designed for high-performance audio playback and is suitable for various audio applications requiring precise digital-to-analog conversion.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 16 bits | |
| Signal-to-Noise Ratio (SNR) | 110 dB | |
| Total Harmonic Distortion + Noise (THD+N) | 0.009% to 0.016% (at -60 dB, 990.5 Hz) | |
| Output Voltage Range | ±3 V | |
| Output Current Range | ±1 mA (in current output mode) | |
| Maximum Clock Input Frequency | 12.5 MHz | |
| Power Supply Voltage | ±5 V | |
| Power Dissipation | 100 mW (typical) | |
| Operating Temperature Range | -25°C to +70°C | |
| Package Type | 16-pin SOIC (Surface Mount) |
Key Features
- High Performance Audio Playback: The AD1851R-REEL7 features low total harmonic distortion and high signal-to-noise ratio, making it ideal for high-quality audio applications.
- Fast Settling Time: The device allows for fast settling times, enabling 16x oversampling and high slew rates.
- Optional Linearity Trim: An optional trim pin is available to eliminate residual differential linearity error at midscale, enhancing low distortion reproduction of low amplitude signals.
- Dual Power Supplies: The device operates with ±5 V power supplies, and the digital supply can be separated from the analog supplies to reduce digital crosstalk.
- Separate Ground Pins: Separate analog and digital ground pins are provided for improved noise isolation.
- Short Circuit Protection: The output amplifier is short circuit protected and can withstand indefinite shorts to ground.
Applications
The AD1851R-REEL7 is suitable for a variety of audio applications, including consumer audio products, professional audio equipment, and any system requiring high-quality digital-to-analog conversion. It is particularly useful in systems that require low distortion and high signal-to-noise ratios, such as CD players, digital audio workstations, and home audio systems.
Q & A
- What is the resolution of the AD1851R-REEL7? The AD1851R-REEL7 has a resolution of 16 bits.
- What is the signal-to-noise ratio (SNR) of the AD1851R-REEL7? The SNR of the AD1851R-REEL7 is 110 dB.
- What is the maximum clock input frequency for the AD1851R-REEL7? The maximum clock input frequency is 12.5 MHz.
- What is the operating temperature range of the AD1851R-REEL7? The operating temperature range is -25°C to +70°C.
- What type of package does the AD1851R-REEL7 come in? The AD1851R-REEL7 comes in a 16-pin SOIC (Surface Mount) package.
- Does the AD1851R-REEL7 have short circuit protection? Yes, the output amplifier of the AD1851R-REEL7 is short circuit protected.
- What is the power supply voltage for the AD1851R-REEL7? The power supply voltage is ±5 V.
- Can the digital and analog supplies be separated in the AD1851R-REEL7? Yes, the digital supply can be separated from the analog supplies to reduce digital crosstalk.
- What is the typical power dissipation of the AD1851R-REEL7? The typical power dissipation is 100 mW.
- Is the AD1851R-REEL7 pin-compatible with other audio DACs? Yes, it is pin-compatible with the AD1856 and AD1860 PCM audio DACs.
