Overview
The ADS61B49IRGZT from Texas Instruments is a high-performance 14-bit Analog-to-Digital Converter (ADC) designed for applications requiring high dynamic performance and low power consumption. This ADC operates at a maximum sample rate of 250 MSPS and is housed in a compact 48-QFN package. The integrated high impedance analog input buffer ensures constant performance and input impedance across a wide frequency range, making it particularly suitable for multi-carrier, wide bandwidth communications applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14-bit (ADS61B49), 12-bit (ADS61B29) |
| Maximum Sample Rate | 250 MSPS |
| Total Power Dissipation at 250 MSPS | 790 mW |
| Output Interfaces | Double Data Rate (DDR) LVDS and Parallel CMOS |
| Programmable Fine Gain | Up to 6 dB for SNR/SFDR Trade-Off and 1-Vpp Full-Scale Operation |
| DC Offset Correction | Available |
| Input Clock Amplitude | Down to 400 mVpp Differential |
| Package | 48-QFN (7mm × 7mm) |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- Integrated High Impedance Analog Input Buffer
- Maximum Sample Rate of 250 MSPS
- Programmable Fine Gain up to 6 dB for SNR/SFDR Trade-Off and 1-Vpp Full-Scale Operation
- DC Offset Correction Loop
- Double Data Rate (DDR) LVDS and Parallel CMOS Output Options
- Supports Input Clock Amplitude Down to 400 mVpp Differential
- Internal References with Eliminated Traditional Reference Pins and Decoupling Capacitors
- Pin Compatible with ADS6149 Family
Applications
- Multicarrier, Wide Bandwidth Communications
- Wireless Multi-Carrier Communications Infrastructure
- Software Defined Radio
- Power Amplifier Linearization Feedback ADC
- 802.16d/e
- Test and Measurement Instrumentation
- High Definition Video
- Medical Imaging
- Radar Systems
Q & A
- What is the maximum sample rate of the ADS61B49IRGZT?
The maximum sample rate of the ADS61B49IRGZT is 250 MSPS.
- What is the resolution of the ADS61B49IRGZT?
The ADS61B49IRGZT has a 14-bit resolution, while the ADS61B29 has a 12-bit resolution.
- What type of output interfaces does the ADS61B49IRGZT support?
The ADS61B49IRGZT supports Double Data Rate (DDR) LVDS and Parallel CMOS output interfaces.
- Does the ADS61B49IRGZT have an integrated analog input buffer?
- What is the total power dissipation of the ADS61B49IRGZT at 250 MSPS?
The total power dissipation of the ADS61B49IRGZT at 250 MSPS is 790 mW.
- What is the operating temperature range of the ADS61B49IRGZT?
The operating temperature range of the ADS61B49IRGZT is -40°C to 85°C.
- Does the ADS61B49IRGZT support DC offset correction?
- What package type does the ADS61B49IRGZT come in?
The ADS61B49IRGZT comes in a 48-QFN package (7mm × 7mm).
- Is the ADS61B49IRGZT pin compatible with other models?
- What are some common applications of the ADS61B49IRGZT?
The ADS61B49IRGZT is commonly used in multicarrier, wide bandwidth communications, wireless multi-carrier communications infrastructure, software defined radio, and more.
