Overview
The ADS5263IRGCT, produced by Texas Instruments, is a quad-channel, 16-bit analog-to-digital converter (ADC) designed for high-performance applications, particularly in medical imaging such as Magnetic Resonance Imaging (MRI). This device leverages CMOS process technology and innovative circuit techniques to achieve low power consumption and high signal-to-noise ratio (SNR) performance. It operates at a maximum sample rate of 100 MSPS and supports both 16-bit high-SNR mode and 14-bit low-power mode, making it versatile for various system requirements.
Key Specifications
| Parameter | Value |
|---|---|
| Package | VQFN (RGC) with 64 pins |
| Operating Temperature Range | -40°C to 85°C |
| Maximum Sample Rate | 100 MSPS |
| Resolution Modes | Quad-Channel, 16-Bit; Quad-Channel, 14-Bit |
| Full-Scale Input | 4 Vpp (16-Bit Mode), 2 Vpp (14-Bit Mode) |
| SNR | 85 dBFS at 3 MHz, 100 MSPS (16-Bit); 74 dBFS at 10 MHz, 100 MSPS (14-Bit) |
| Total Power Consumption | 1.4 W at 100 MSPS (16-Bit Mode), 785 mW at 100 MSPS (14-Bit Mode) |
| Analog Supply Voltage | 3.3 V |
| Digital Supply Voltage | 1.8 V |
| Package Dimensions | 9-mm × 9-mm |
Key Features
- Programmable device resolution: Supports both 16-bit and 14-bit modes.
- High SNR performance: Up to 85 dBFS in 16-bit mode and 74 dBFS in 14-bit mode.
- Low power consumption: 355 mW/channel in 16-bit mode and 195 mW/channel in 14-bit mode.
- Integrated clamp for interfacing with CCD sensors.
- Digital processing block with programmable FIR decimation filters and digital gain (up to 12 dB).
- 2- or 4-channel averaging to improve SNR.
- Programmable mapping between ADC input channels and LVDS output pins.
- Serialized LVDS outputs and support for internal and external references.
- Non-magnetic package option for use in MRI systems.
- Low-frequency noise suppression and recovery from 6-dB overload within one clock cycle.
Applications
The ADS5263IRGCT is particularly suited for medical imaging applications such as Magnetic Resonance Imaging (MRI), where high SNR, low power consumption, and compact footprint are critical. It is also applicable in other high-performance data acquisition systems that require multiple channels of high-resolution analog-to-digital conversion.
Q & A
- What is the maximum sample rate of the ADS5263IRGCT?
The maximum sample rate is 100 MSPS.
- What are the resolution modes supported by the ADS5263IRGCT?
The device supports both quad-channel 16-bit and quad-channel 14-bit resolution modes.
- What is the full-scale input voltage for the 16-bit and 14-bit modes?
The full-scale input voltage is 4 Vpp for the 16-bit mode and 2 Vpp for the 14-bit mode.
- What is the SNR performance of the ADS5263IRGCT in the 16-bit and 14-bit modes?
The SNR is up to 85 dBFS at 3 MHz, 100 MSPS in the 16-bit mode and up to 74 dBFS at 10 MHz, 100 MSPS in the 14-bit mode.
- How much power does the ADS5263IRGCT consume in the 16-bit and 14-bit modes?
The total power consumption is 1.4 W at 100 MSPS in the 16-bit mode and 785 mW at 100 MSPS in the 14-bit mode.
- What are the supply voltages for the analog and digital sections of the ADS5263IRGCT?
The analog supply voltage is 3.3 V, and the digital supply voltage is 1.8 V.
- Does the ADS5263IRGCT have a non-magnetic package option?
- What digital processing features are integrated into the ADS5263IRGCT?
The device includes a digital processing block with programmable FIR decimation filters, digital gain (up to 12 dB), and programmable mapping between ADC input channels and LVDS output pins.
- Can the ADS5263IRGCT recover from an overload condition?
- What is the package size of the ADS5263IRGCT?
The package dimensions are 9-mm × 9-mm.
