Overview
The ADS5485IRGCR is a 16-bit analog-to-digital converter (ADC) produced by Texas Instruments. This device is part of the ADS548x family, which includes the ADS5484 and ADS5485 models. The ADS5485IRGCR operates at sample rates of up to 200 MSPS and is designed for high-performance applications requiring precise analog-to-digital conversion. It features a buffered analog input, an internal reference generator, and LVDS-compatible digital outputs. The device is available in a 64-pin QFN package with a PowerPAD™ for efficient heat dissipation and is suitable for industrial temperature ranges from –40°C to 85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Sample Rate | 170/200 | MSPS |
| Resolution | 16 | Bits |
| Differential Input Voltage Range | 3 | VPP |
| Analog Input Common-Mode Voltage | 3.1 | V |
| Input Resistance (dc) | 1000 | Ω |
| Input Capacitance | 3.5 | pF |
| Analog Input Bandwidth (–3dB) | 730 | MHz |
| Signal-to-Noise Ratio (SNR) | Up to 76.8 | dBFS |
| Spurious-Free Dynamic Range (SFDR) | Up to 95 | dBc |
| Power Supply Voltages | AVDD5: 5V, AVDD3: 3.3V, DVDD3: 3.3V | V |
| Total Power Dissipation | Up to 2.35 | W |
| Operating Temperature Range | –40 to 85 | °C |
| Package Type | 64-pin QFN with PowerPAD™ |
Key Features
- High-speed sampling rates of up to 200 MSPS
- 16-bit resolution with a noise floor of 78 dBFS
- On-chip high impedance analog buffer to isolate the internal switching from the signal source
- Internal reference generator to simplify system design
- Internal dither available to improve SFDR
- LVDS-compatible digital outputs for efficient data transfer
- Power-down modes (light sleep and deep sleep) for reduced power consumption
- Pin-for-pin compatibility with ADS5483/5482/5481 ADCs
Applications
- Wireless Infrastructure
- Test and Measurement Instrumentation
- Software-Defined Radio
- Radar Systems
- Medical Imaging
- Data Acquisition Systems
- Power Amplifier Linearization
- Industrial Automation
Q & A
- What is the maximum sample rate of the ADS5485IRGCR?
The maximum sample rate of the ADS5485IRGCR is 200 MSPS.
- What is the resolution of the ADS5485IRGCR?
The resolution of the ADS5485IRGCR is 16 bits.
- What type of analog input does the ADS5485IRGCR have?
The ADS5485IRGCR has a buffered high impedance analog input.
- What is the typical signal-to-noise ratio (SNR) of the ADS5485IRGCR?
The typical SNR of the ADS5485IRGCR is up to 76.8 dBFS.
- What are the power supply voltages for the ADS5485IRGCR?
The power supply voltages are AVDD5: 5V, AVDD3: 3.3V, and DVDD3: 3.3V.
- What is the operating temperature range of the ADS5485IRGCR?
The operating temperature range is –40°C to 85°C.
- What type of package does the ADS5485IRGCR come in?
The ADS5485IRGCR comes in a 64-pin QFN package with PowerPAD™.
- Does the ADS5485IRGCR have power-down modes?
Yes, the ADS5485IRGCR has both light sleep and deep sleep power-down modes to reduce power consumption.
- What are some common applications of the ADS5485IRGCR?
Common applications include wireless infrastructure, test and measurement instrumentation, software-defined radio, radar systems, medical imaging, and data acquisition systems.
- Is the ADS5485IRGCR compatible with other ADC models?
Yes, the ADS5485IRGCR is pin-for-pin compatible with ADS5483/5482/5481 ADCs.
