Overview
The Texas Instruments ADS5263IRGCR-NM is a quad-channel, 16-bit analog-to-digital converter (ADC) designed for high-performance applications. Utilizing CMOS process technology and innovative circuit techniques, this device operates at low power while delivering very high signal-to-noise ratio (SNR) performance. It features a maximum sample rate of 100 MSPS and supports both 16-bit high-SNR mode and 14-bit low-power mode, allowing dynamic switching between these modes to suit different system requirements.
Key Specifications
| Specification | Value |
|---|---|
| Maximum Sample Rate | 100 MSPS |
| Resolution Modes | Quad-Channel, 16-Bit (High-SNR Mode), Quad-Channel, 14-Bit (Low-Power Mode) |
| Total Power at 100 MSPS | 1.4 W (16-Bit Mode), 785 mW (14-Bit Mode) |
| Power per Channel | 355 mW (16-Bit Mode), 195 mW (14-Bit Mode) |
| Full-Scale Input | 4 Vpp (16-Bit Mode), 2 Vpp (14-Bit Mode) |
| SNR at 100 MSPS | 85-dBFS at fin = 3 MHz (16-Bit Mode), 74-dBFS at fin = 10 MHz (14-Bit Mode) |
| Analog Supply Voltage | 3.3 V |
| Digital Supply Voltage | 1.8 V |
| Package | 9-mm × 9-mm 64-Pin QFN |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- Integrated clamp for interfacing to CCD sensors
- Low-frequency noise suppression
- Digital processing block with programmable FIR decimation filters (low-pass, high-pass, and band-pass characteristics)
- Programmable digital gain: 0 dB to 12 dB
- 2- or 4-channel averaging to improve SNR
- Programmable mapping between ADC input channels and LVDS output pins to ease board design
- Variety of test patterns to verify data capture by FPGA/Receiver
- Serialized LVDS outputs
- Internal and external references
- Recovery from 6-dB overload within 1 clock cycle
- Non-magnetic package option for MRI systems
Applications
- Medical Imaging – MRI
- Spectroscopy
- CCD Imaging
- Narrow-band applications where filters can improve SNR and reduce output data rate
Q & A
- What is the maximum sample rate of the ADS5263IRGCR-NM?
The maximum sample rate is 100 MSPS.
- What are the resolution modes supported by the ADS5263IRGCR-NM?
The device supports both 16-bit high-SNR mode and 14-bit low-power mode.
- How much power does the ADS5263IRGCR-NM consume in 16-bit mode?
The total power consumption in 16-bit mode is 1.4 W at 100 MSPS.
- What is the full-scale input voltage for the 16-bit mode?
The full-scale input voltage for the 16-bit mode is 4 Vpp.
- What is the SNR performance of the ADS5263IRGCR-NM in 16-bit mode at 3 MHz input frequency?
The SNR performance is 85-dBFS at fin = 3 MHz.
- Does the ADS5263IRGCR-NM support internal and external references?
- What is the package type and size of the ADS5263IRGCR-NM?
The package is a 9-mm × 9-mm 64-Pin QFN.
- Is the ADS5263IRGCR-NM suitable for MRI systems?
- Can the ADS5263IRGCR-NM recover from an overload condition quickly?
- What digital functions are integrated into the ADS5263IRGCR-NM's digital processing block?
The digital processing block includes programmable FIR decimation filters, digital gain (up to 12 dB), and channel averaging.
