ad1853 Datasheet - Analogdevices
The AD1853 is a high-performance, 24-bit, 192 kHz, multibit sigma-delta analog-to-digital converter (ADC) designed for professional audio applications.
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📝 Component Overview
The AD1853 is a high-performance, 24-bit, 192 kHz, multibit sigma-delta analog-to-digital converter (ADC) designed for professional audio applications. It features a clickless, auto-divide function for seamless transitions between different sampling rates and offers flexible interfacing options, including I2S and left-justified formats. The device is optimized for low distortion, high dynamic range, and low power consumption, making it suitable for a wide range of professional audio equipment, from digital mixing consoles and effects processors to digital audio workstations and broadcast equipment.
Key Features and Benefits
- 24-bit, 192 kHz, multibit sigma-delta ADC
- Clickless, auto-divide function for seamless sampling rate transitions
- Flexible interfacing options: I2S, left-justified, and right-justified formats
- Low distortion and high dynamic range for professional audio quality
- Low power consumption for battery-powered and power-sensitive applications
- Operating temperature range: -40°C to +85°C
- Package options: 28-lead SSOP and 28-lead TSSOP
Typical Applications
- Professional audio equipment
- Digital mixing consoles
- Effects processors
- Digital audio workstations
- Broadcast equipment
- High-end consumer audio products
📊 Complete Technical Specifications
Absolute Maximum Ratings
| Parameter | Value |
|---|---|
| Supply Voltage | 5.5 V |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -65°C to +150°C |
Electrical Characteristics
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Analog Input Voltage | VDD = 5 V, TA = 25°C | 0 V | 2.5 V | 5 V | V |
| Digital Supply Current | VDD = 5 V, fSAMPLE = 192 kHz, TA = 25°C | 10 mA | 15 mA | 20 mA | mA |
Package Information
- 28-lead SSOP: The 28-lead SSOP package is a shrink small outline package with a 0.65 mm pitch.
- 28-lead TSSOP: The 28-lead TSSOP package is a thin shrink small outline package with a 0.65 mm pitch.
Pin Configuration
- Pin 1: VDD - Positive supply voltage
- Pin 2: VREF - Reference voltage input
🔧 Application Guidelines
Design Considerations
When designing with the AD1853, consider the analog input signal conditioning, the digital interface, and the power supply decoupling to ensure optimal performance. The device requires a stable and clean power supply, and proper grounding and shielding techniques should be applied to minimize noise and interference.
Installation Guidelines
The AD1853 is available in a 28-lead SSOP and a 28-lead TSSOP package. The device should be handled with care to prevent damage from static electricity. During installation, ensure that the device is properly aligned with the PCB footprint and that all pins are securely soldered to prevent damage or malfunction.
Operational Notes
The AD1853 operates from a single 5 V supply and requires careful attention to the power supply decoupling to ensure stable operation. The device also features a clickless, auto-divide function that allows for seamless transitions between different sampling rates, but this function should be carefully evaluated in the application to ensure that it meets the specific requirements.