Overview
The ADS42JB69IRGCR, produced by Texas Instruments, is a high-performance, dual-channel, 16-bit analog-to-digital converter (ADC) with a maximum sampling rate of 250 MSPS. This device is designed for high-linearity and low-power consumption, making it suitable for a wide range of applications requiring high-speed data conversion. The ADS42JB69 supports the JESD204B serial interface with data rates up to 3.125 Gbps and features a buffered analog input with high-impedance input, which ensures uniform input impedance across a wide frequency range.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16-bit | |
| Maximum Clock Rate | 250 | MSPS |
| Serial Interface | JESD204B | |
| Data Rate | Up to 3.125 Gbps | |
| Lanes Support | Two and Four Lanes | |
| Analog Input Buffer | High-Impedance Input | |
| Differential Full-Scale Input | 2 VPP and 2.5 VPP (Register Programmable) | |
| Package | 9-mm × 9-mm VQFN-64 | |
| Power Dissipation | 850 mW/Channel | |
| Aperture Jitter | 85 fS rms | |
| Channel Isolation | 100 dB | |
| SNR at 170 MHz, 2 VPP | 73.3 dBFS | |
| SFDR at 170 MHz, 2 VPP | 93 dBc for HD2, HD3; 100 dBc for Non HD2, HD3 | |
| SNR at 170 MHz, 2.5 VPP | 74.7 dBFS | |
| SFDR at 170 MHz, 2.5 VPP | 89 dBc for HD2, HD3; 95 dBc for Non HD2, HD3 |
Key Features
- Dual-channel ADC with 16-bit resolution and a maximum sampling rate of 250 MSPS.
- Supports JESD204B serial interface with data rates up to 3.125 Gbps and subclass 0, 1, 2 compliance.
- Buffered analog input with high-impedance input, providing uniform input impedance across a wide frequency range.
- Flexible input clock buffer with divide-by-1, -2, and -4 options.
- Internal dither algorithms for excellent spurious-free dynamic range (SFDR) over a large input frequency range.
- High channel isolation of 100 dB.
- Low aperture jitter of 85 fS rms.
- Compact 9-mm × 9-mm VQFN-64 package.
Applications
- Communication and Cable Infrastructure
- Multi-Carrier, Multimode Cellular Receivers
- Radar and Smart Antenna Arrays
- Broadband Wireless Systems
- Test and Measurement Systems
- Software-Defined and Diversity Radios
- Microwave and Dual-Channel I/Q Receivers
- Repeaters
- Power Amplifier Linearization
Q & A
- What is the maximum sampling rate of the ADS42JB69?
The maximum sampling rate of the ADS42JB69 is 250 MSPS.
- What serial interface does the ADS42JB69 support?
The ADS42JB69 supports the JESD204B serial interface.
- What are the differential full-scale input voltage ranges for the ADS42JB69?
The differential full-scale input voltage ranges are 2 VPP and 2.5 VPP, which are register programmable.
- What is the power dissipation per channel for the ADS42JB69?
The power dissipation per channel is 850 mW.
- What is the aperture jitter of the ADS42JB69?
The aperture jitter is 85 fS rms.
- What is the channel isolation of the ADS42JB69?
The channel isolation is 100 dB.
- What are some of the key applications for the ADS42JB69?
Key applications include communication and cable infrastructure, multi-carrier cellular receivers, radar and smart antenna arrays, and test and measurement systems.
- What package type and size does the ADS42JB69 come in?
The ADS42JB69 comes in a 9-mm × 9-mm VQFN-64 package.
- Does the ADS42JB69 have internal dither algorithms?
Yes, the ADS42JB69 employs internal dither algorithms to provide excellent spurious-free dynamic range (SFDR) over a large input frequency range.
- What is the operating temperature range for the ADS42JB69?
The operating temperature range is from –40°C to +85°C.
