Overview
The AD1865RZ-J, produced by Analog Devices Inc., is a complete, dual 18-bit Digital-to-Analog Converter (DAC) designed for high-performance audio applications. This monolithic chip integrates CMOS logic, bipolar, and MOS linear elements, along with laser-trimmed thin-film resistor elements, all fabricated on Analog Devices' ABCMOS process. The AD1865RZ-J offers excellent Total Harmonic Distortion plus Noise (THD+N) and Signal-to-Noise Ratio (SNR), requiring no external components for operation.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 18 bits | |||
| Signal-to-Noise Ratio (20 Hz to 30 kHz) | 107 dB | 110 dB | dB | |
| THD+N | 0.003% | % | ||
| Output Voltage Range | ±2.94 V | ±3.0 V | ±3.06 V | V |
| Output Current Range | ±1 mA | mA | ||
| Power Supply | ±4.75 V | ±5.0 V | ±5.25 V | V |
| Power Dissipation | 225 mW | 260 mW | mW | |
| Operating Temperature | -25°C | +70°C | °C | |
| Package Type | 28-pin SOIC |
Key Features
- Complete dual 18-bit DAC with no external components required.
- Excellent THD+N and SNR performance.
- Partially segmented architecture with laser-trimmed resistors for low distortion.
- High performance output amplifiers with fast settling and high slew rate.
- Short-circuit protected output amplifiers.
- High channel separation and matched gain and linearity.
- Five-wire digital interface for individual DAC control.
- Low power consumption: 225 mW typical, 260 mW maximum.
Applications
The AD1865RZ-J is suitable for various high-performance audio applications, including professional audio equipment, digital audio workstations, and consumer audio products. Its dual-channel design makes it ideal for stereo and multi-DAC per channel applications.
Q & A
- What is the resolution of the AD1865RZ-J DAC? The AD1865RZ-J has a resolution of 18 bits.
- What is the typical THD+N of the AD1865RZ-J? The typical THD+N is 0.003%.
- What is the signal-to-noise ratio (SNR) of the AD1865RZ-J? The SNR is typically 110 dB.
- What are the power supply requirements for the AD1865RZ-J? The AD1865RZ-J operates with ±4.75 V to ±5.25 V power supplies.
- What is the typical power dissipation of the AD1865RZ-J? The typical power dissipation is 225 mW.
- What are the operating temperature ranges for the AD1865RZ-J? The operating temperature range is -25°C to +70°C.
- What type of package is the AD1865RZ-J available in? The AD1865RZ-J is available in a 28-pin SOIC package.
- Does the AD1865RZ-J require external components for operation? No, the AD1865RZ-J does not require any external components for operation.
- What is the output current range of the AD1865RZ-J? The output current range is ±1 mA.
- Is the AD1865RZ-J protected against short circuits? Yes, the output amplifiers of the AD1865RZ-J are short-circuit protected.
