Overview
The AD1856RZ-K is a monolithic 16-bit pulse code modulation (PCM) audio digital-to-analog converter (DAC) produced by Analog Devices Inc. This device integrates a voltage output amplifier, a 16-bit DAC, a 16-bit serial-to-parallel input register, and a voltage reference. The AD1856RZ-K is fabricated using Analog Devices’ BiMOS II process, combining CMOS logic elements with bipolar and MOS devices, as well as thin film resistors. This design ensures high-performance audio playback with extremely low total harmonic distortion and fast settling times, making it suitable for both portable and home-use audio applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16-bit | |
| Total Harmonic Distortion (THD) | 0.0025% | |
| Output Voltage Range | ±3 V | |
| Output Current Range | ±8 mA | |
| Power Supply Voltage | ±5 V to ±12 V | |
| Power Dissipation (typical) | 110 mW (@ ±5 V), 135 mW (@ ±12 V) | mW |
| Settling Time | 1.5 µs (6 V step), 1.0 µs (1 LSB step) | µs |
| Slew Rate | 9 V/µs | V/µs |
| Operating Temperature Range | 0°C to 70°C | °C |
| Storage Temperature Range | −60°C to 100°C | °C |
Key Features
- Fast settling time permits 2×, 4×, and 8× oversampling rates.
- Optional trim feature allows for superlinear performance and elimination of residual differential linearity error at midscale.
- Serial input interface compatible with popular digital filter chips used in consumer audio products.
- Separate analog and digital power supplies and ground pins to reduce digital crosstalk.
- Output amplifier with short-circuit protection to ground.
- Low total harmonic distortion and high slew rates for high-quality audio playback.
- No external components required for operation.
- 96 dB dynamic range and 16-bit resolution for precise audio conversion.
Applications
The AD1856RZ-K is suitable for a variety of audio applications, including:
- Consumer audio products such as CD players, digital audio workstations, and home audio systems.
- Portable audio devices due to its ability to operate with ±5 V to ±12 V power supplies.
- Professional audio equipment where high-quality, low-distortion audio conversion is required.
Q & A
- What is the resolution of the AD1856RZ-K DAC?
The AD1856RZ-K has a 16-bit resolution.
- What is the total harmonic distortion (THD) of the AD1856RZ-K?
The THD of the AD1856RZ-K is 0.0025%.
- What is the output voltage range of the AD1856RZ-K?
The output voltage range is ±3 V.
- Can the AD1856RZ-K operate with different power supply voltages?
Yes, it can operate with ±5 V to ±12 V power supplies.
- What is the settling time of the AD1856RZ-K?
The settling time is 1.5 µs for a 6 V step and 1.0 µs for a 1 LSB step).
- Is the AD1856RZ-K compatible with digital filter chips?
Yes, the serial input interface is compatible with popular digital filter chips used in consumer audio products).
- Does the AD1856RZ-K require external components for operation?
No, the AD1856RZ-K does not require external components for operation).
- What is the dynamic range of the AD1856RZ-K?
The dynamic range is 96 dB).
- What are the typical operating and storage temperature ranges for the AD1856RZ-K?
The operating temperature range is 0°C to 70°C, and the storage temperature range is −60°C to 100°C).
- Is the output amplifier of the AD1856RZ-K short-circuit protected?
Yes, the output amplifier is short-circuit protected and can withstand indefinite shorts to ground).
