Overview
The ADS42LB69IRGC25 is a high-performance, dual-channel analog-to-digital converter (ADC) produced by Texas Instruments. This component is part of the ADS42LBx9 family, offering 16-bit resolution and a maximum sampling rate of 250 MSPS. It features a buffered analog input with high impedance, which provides uniform input impedance across a wide frequency range and minimizes sample-and-hold glitch energy. The ADC supports both DDR (Double Data Rate) and QDR (Quad Data Rate) LVDS (Low-Voltage Differential Signaling) output interfaces, making it highly versatile for various high-speed applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16-bit | |
| Maximum Sampling Rate | 250 | MSPS |
| Analog Input Voltage Range | 2 VPP or 2.5 VPP (programmable) | |
| Input Clock Rate | 10 - 250 MSPS | |
| Input Clock Amplitude | 0.3 - 1.5 VPP (sine wave, ac-coupled) | |
| Input Clock Duty Cycle | 35% - 65% | % |
| Power Dissipation per Channel | 820 | mW |
| Aperture Jitter | 85 | fS |
| Channel Isolation | 100 | dB |
| Operating Temperature Range | -40 to +85 | °C |
| Package Type | 64-Pin VQFN (9-mm × 9-mm) |
Key Features
- Dual-channel, 16-bit resolution ADC
- Maximum sampling rate of 250 MSPS
- Buffered analog input with high impedance
- Flexible input clock buffer with divide-by-1, -2, and -4
- DDR and QDR LVDS output interfaces
- Internal dither and digital gain
- High spurious-free dynamic range (SFDR) over a large input frequency range
- Low power consumption: 820 mW per channel
- 64-Pin VQFN package (9-mm × 9-mm)
Applications
- Communication and Cable Infrastructure
- Multi-Carrier, Multimode Cellular Receivers
- Radar and Smart Antenna Arrays
- Broadband Wireless
- 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 ADS42LB69IRGC25?
The maximum sampling rate is 250 MSPS.
- What are the supported output interfaces for this ADC?
The ADC supports both DDR (Double Data Rate) and QDR (Quad Data Rate) LVDS output interfaces.
- What is the power consumption per channel for the ADS42LB69IRGC25?
The power consumption per channel is 820 mW.
- What is the aperture jitter of the ADS42LB69IRGC25?
The aperture jitter is 85 fS.
- What is the channel isolation of the ADS42LB69IRGC25?
The channel isolation is 100 dB.
- What are the typical operating temperature ranges for the ADS42LB69IRGC25?
The operating temperature range is -40°C to +85°C.
- What package type is used for the ADS42LB69IRGC25?
The package type is a 64-Pin VQFN (9-mm × 9-mm).
- Does the ADS42LB69IRGC25 support internal dither?
Yes, it supports internal dither.
- What are some common applications for the ADS42LB69IRGC25?
Common applications include communication and cable infrastructure, multi-carrier cellular receivers, radar and smart antenna arrays, and test and measurement systems.
- How can the input clock be configured for the ADS42LB69IRGC25?
The input clock can be configured with a flexible input clock buffer that allows divide-by-1, -2, and -4.
