Overview
The ADS42JB69IRGC25 is a high-performance, dual-channel analog-to-digital converter (ADC) produced by Texas Instruments. This device is part of the ADS42JBx9 family, offering 16-bit resolution and a maximum sampling rate of 250 MSPS. It is designed for applications requiring high-linearity and wide bandwidth, making it suitable for various communication, radar, and test and measurement systems.
The ADS42JB69 features a JESD204B serial interface with data rates up to 3.125 Gbps, supporting two and four lanes. The device includes an analog input buffer with high-impedance input, internal dither, and a flexible input clock buffer with divide-by-1, -2, and -4 options. This ADC is packaged in a 9-mm × 9-mm VQFN-64 package, ensuring compact and efficient system design.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16-bit | |
| Sampling Rate | Up to 250 MSPS | |
| Analog Input Voltage Range | 2 VPP, 2.5 VPP (register programmable) | |
| Input Common-Mode Voltage | VCM ± 0.025 V | |
| Aperture Jitter | 85 fS rms | |
| Channel Isolation | 100 dB | |
| SNR (fIN = 170 MHz, 2 VPP) | 73.3 dBFS | |
| SFDR (fIN = 170 MHz, 2 VPP) | 93 dBc for HD2, HD3; 100 dBc for Non HD2, HD3 | |
| Power Dissipation per Channel | 850 mW | |
| Operating Temperature Range | –40°C to +85°C | |
| Package | 9-mm × 9-mm VQFN-64 |
Key Features
- Dual-channel ADC with 16-bit resolution
- Maximum sampling rate of 250 MSPS
- JESD204B serial interface with data rates up to 3.125 Gbps
- Support for two and four lanes
- Analog input buffer with high-impedance input
- Internal dither for improved SFDR
- Flexible input clock buffer with divide-by-1, -2, and -4 options
- Low aperture jitter of 85 fS rms
- High channel isolation of 100 dB
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 and 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 type of serial interface does the ADS42JB69 support?
The ADS42JB69 supports the JESD204B serial interface.
- What is the resolution of the ADS42JB69 ADC?
The resolution of the ADS42JB69 ADC is 16 bits.
- What is the typical power dissipation per channel for the ADS42JB69?
The typical power dissipation per channel for the ADS42JB69 is 850 mW.
- What is the operating temperature range of the ADS42JB69?
The operating temperature range of the ADS42JB69 is –40°C to +85°C.
- What type of package does the ADS42JB69 come in?
The ADS42JB69 comes in a 9-mm × 9-mm VQFN-64 package.
- What is the aperture jitter of the ADS42JB69?
The aperture jitter of the ADS42JB69 is 85 fS rms.
- What is the channel isolation of the ADS42JB69?
The channel isolation of the ADS42JB69 is 100 dB.
- What are some common applications of the ADS42JB69?
Common applications include communication and cable infrastructure, multi-carrier cellular receivers, radar and smart antenna arrays, and test and measurement systems.
- Does the ADS42JB69 support internal dither?
Yes, the ADS42JB69 supports internal dither to improve the spurious-free dynamic range (SFDR).
