Overview
The AD1856R-J is a monolithic 16-bit pulse code modulation (PCM) audio digital-to-analog converter (DAC) produced by Analog Devices Inc. This device is designed to provide high-performance audio playback with low distortion and high signal integrity. It features a voltage output amplifier, a 16-bit DAC, a 16-bit serial-to-parallel input register, and a voltage reference. The AD1856R-J is fabricated using Analog Devices’ BiMOS II process, combining CMOS logic elements with bipolar and MOS devices, as well as thin film resistors, to achieve high performance and low distortion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Total Harmonic Distortion (THD) | 0.0025% to 0.008% depending on the model variant |
| Output Voltage Range | ±3 V |
| Output Current Capability | ±8 mA |
| Power Supply Range | ±5 V to ±12 V |
| Operating Temperature Range | -25°C to 70°C |
| Package Type | 16-pin SOIC (0.295", 7.50mm Width) |
| Data Interface | Serial, 2's complement |
| Settling Time | 1.5 µs |
| Dynamic Range | 96 dB |
Key Features
- High-performance audio playback with low total harmonic distortion (THD) and high signal integrity.
- Optional linearity trim pin for superlinear performance and elimination of residual differential linearity error at midscale.
- Fast settling time of 1.5 µs, allowing for 2x, 4x, or 8x oversampling rates.
- 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 high slew rates and short-circuit protection.
- No external components required for operation.
Applications
The AD1856R-J is suitable for various audio applications, including consumer audio products, portable audio devices, and home-use audio equipment. Its high performance and low distortion make it ideal for applications requiring high-quality audio playback.
Q & A
- What is the resolution of the AD1856R-J DAC?
The AD1856R-J has a resolution of 16 bits.
- What is the typical total harmonic distortion (THD) of the AD1856R-J?
The THD of the AD1856R-J can range from 0.0025% to 0.008% depending on the model variant.
- What is the output voltage range of the AD1856R-J?
The output voltage range is ±3 V.
- What is the power supply range for the AD1856R-J?
The power supply range is ±5 V to ±12 V.
- What is the operating temperature range of the AD1856R-J?
The operating temperature range is -25°C to 70°C.
- What type of package does the AD1856R-J come in?
The AD1856R-J comes in a 16-pin SOIC package.
- What is the data interface type of the AD1856R-J?
The data interface is serial, using 2's complement data words.
- What is the settling time of the AD1856R-J?
The settling time is 1.5 µs.
- Does the AD1856R-J require external components for operation?
No, the AD1856R-J does not require external components for operation.
- What are some common applications for the AD1856R-J?
The AD1856R-J is commonly used in consumer audio products, portable audio devices, and home-use audio equipment.
