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Texas Instruments ADS5263IRGCT
- Part No.:
- ADS5263IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
ADS5263IRGCT.pdf
- Description:
- IC ADC 16BIT PIPELINED 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:909
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Product details
Overview
ADS5263IRGCT from Texas Instruments is a quad-channel, 16-bit/14-bit programmable analog-to-digital converter with 100-MSPS sampling rate, 85-dBFS SNR (16-bit mode, 3 MHz), 4-Vpp full-scale input, and serialized LVDS outputs. It serves as the high-resolution front-end digitizer in MRI signal chains, CCD imaging systems, and spectroscopy instrumentation where channel synchronization and low idle noise are critical.
For engineers reviewing the ADS5263IRGCT datasheet, ADS5263IRGCT pinout, ADS5263IRGCT application, or ADS5263IRGCT equivalent, key selection criteria include dual-resolution operation (16-bit high-SNR vs. 14-bit low-power), programmable digital decimation filters, LVDS serialization architecture (8× bit clock, 1× frame clock), and non-magnetic QFN packaging for MRI compatibility.
Technical Context
The ADS5263IRGCT integrates a 16-bit front-end stage followed by a 14-bit ADC core, enabling true 16-bit high-SNR mode (1.4 W total power) or 14-bit low-power mode (785 mW). Its digital processing block includes programmable FIR decimation filters (×2/×4/×8), 0–12 dB digital gain, and 2-/4-channel averaging to enhance SNR without external FPGA logic.
Channel synchronization is managed via dedicated SYNC input and internal LVDS clock generation (ADCLKP/M for frame clock, LCLKP/M for 8× bit clock). Input mapping between four differential analog channels (INxA_P/M, INxB_P/M per channel) and eight LVDS output pairs (OUT1P/M through OUT8P/M) is fully programmable to simplify PCB routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution Modes | Programmable 16-bit high-SNR (85-dBFS @ 3 MHz) or 14-bit low-power (74-dBFS @ 10 MHz) |
| Sampling Rate | 100 MSPS maximum - supports real-time digitization of wideband signals up to 65 MHz input frequency |
| Analog Input Range | 4-Vpp differential (16-bit mode); 2-Vpp differential (14-bit mode) - matches standard CCD and MRI sensor output levels |
| Power Consumption | 1.4 W total at 100 MSPS (16-bit); 785 mW total at 100 MSPS (14-bit) - enables thermal management in dense medical modules |
| Digital Output Interface | Serialized LVDS with 8× bit clock (LCLKP/M) and 1× frame clock (ADCLKP/M) - reduces I/O count versus parallel CMOS outputs |
| Input Bandwidth | 700 MHz analog input bandwidth - preserves transient fidelity for fast-rising MRI gradient echoes |
| Overload Recovery | Recovers from 6-dB overload within 1 clock cycle - prevents data corruption during MRI RF pulse interference |
Pinout & Package
VQFN-64 package (9.0 mm × 9.0 mm) with exposed thermal pad; RoHS-compliant, non-magnetic variant available for MRI systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1A_P / IN1A_M IN2A_P / IN2A_M IN3A_P / IN3A_M IN4A_P / IN4A_M | Differential analog inputs (16-bit mode) | Accept 4-Vpp full-scale signals; each pair routes to dedicated 16-bit ADC path with independent clamping |
| IN1B_P / IN1B_M IN2B_P / IN2B_M IN3B_P / IN3B_M IN4B_P / IN4B_M | Differential analog inputs (14-bit mode) | Accept 2-Vpp full-scale signals; used when 16-bit front-end is powered down to halve power consumption |
| CLKP / CLKM | Differential clock input | Accepts LVDS/LVPECL/CMOS clocks; 10–100 MHz range with 35–65% duty cycle tolerance |
| OUT1P/OUT1M – OUT8P/OUT8M | LVDs serialized data outputs | Eight differential pairs carry time-multiplexed channel data; mapping between ADC channels and output wires is software-configurable |
| ADCLKP / ADCLKM | LVDs frame clock output (1×) | Synchronizes data frames across multiple ADS5263IRGCT devices in multi-chip systems |
| LCLKP / LCLKM | LVDs bit clock output (8×) | Provides 800 MHz bit clock for deserialization; eliminates need for external clock multiplier in FPGA receiver |
| SYNC | Multi-device synchronization input | Aligns sampling phase across chips when operating at reduced output data rates (e.g., with decimation) |
| VCM | Reference voltage I/O | Outputs 1.5 V common-mode bias in internal reference mode; accepts external reference voltage (1.45–1.55 V) in external mode |
Key Features
| Feature | Design Value |
|---|---|
| Programmable resolution modes | Runtime switchable between 16-bit high-SNR (85-dBFS) and 14-bit low-power (74-dBFS) - enables adaptive system power scaling |
| Integrated digital processing block | On-chip FIR decimation (×2/×4/×8), 0–12 dB digital gain, and 2-/4-channel averaging - reduces FPGA resource usage and latency |
| Flexible LVDS output mapping | Software-defined assignment of ADC channels to LVDS output pins - minimizes layer count and trace length in high-density medical PCBs |
| Non-magnetic QFN package | 9 mm × 9 mm VQFN with magnetic material exclusion - certified for use inside MRI scanner gantries without field distortion |
| Clamp function for CCD sensors | Integrated clamping circuit on 14-bit input paths - eliminates need for external DC restoration in CCD imaging front-ends |
Applications
| MRI Signal Acquisition | Spectroscopy Data Capture |
|---|---|
Use Scenario: Digitizing RF coil signals in 1.5T and 3T MRI scanners under strong magnetic fields and RF interference. IC Role / Device Role / Timing Role: Quad-channel simultaneous sampling ADC with sub-nanosecond inter-channel skew and 1-cycle overload recovery. Use Value: Non-magnetic VQFN package avoids B₀ field distortion; SYNC input enables precise multi-board timing alignment across receive chains. | Use Scenario: High-fidelity acquisition of narrowband spectral peaks from optical or mass spectrometers requiring >80-dBFS dynamic range. IC Role / Device Role / Timing Role: Low-noise digitizer with programmable FIR decimation filters to suppress out-of-band harmonics before FFT processing. Use Value: 85-dBFS SNR at 3 MHz and 80-dBFS at 30 MHz enables detection of weak spectral lines adjacent to strong peaks. |
| CCD Imaging Systems | Ultrasound Beamforming |
Use Scenario: Reading out multi-tap CCD sensors in scientific cameras and industrial inspection systems with minimal added noise. IC Role / Device Role / Timing Role: 14-bit ADC with integrated clamp circuit and 2-Vpp input range optimized for CCD video-rate output swing. Use Value: Eliminates external clamping components; 74-dBFS SNR at 10 MHz supports >60 dB contrast ratio in low-light imaging. | Use Scenario: Digitizing echo return signals from phased-array transducers in portable ultrasound machines. IC Role / Device Role / Timing Role: Synchronized quad-channel ADC providing time-aligned samples for digital beam steering and focusing. Use Value: 100 MSPS sampling captures 40 MHz bandwidth signals; LVDS serialization reduces EMI-sensitive parallel bus routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS5273IRGCT | Same 64-pin VQFN package and pin-compatible; adds JESD204B interface and higher 125-MSPS max rate | Requires FPGA with JESD204B receiver; better suited for new designs needing higher throughput or deterministic latency | Select ADS5273IRGCT when upgrading to JESD204B ecosystem or requiring >100 MSPS sampling |
| AD9257BSTZ-105 | Quad 14-bit, 105-MSPS ADC in 48-lead LFCSP; no 16-bit mode, no integrated decimation filters, uses CMOS parallel outputs | Lacks programmable resolution and digital processing; requires external FPGA logic for averaging/filtering and more PCB layers for parallel routing | Select AD9257BSTZ-105 only if legacy CMOS interface is mandated and digital processing is handled externally |
Compared with ADS5263IRGCT, ADS5273IRGCT offers higher speed and modern serial interface but increases FPGA complexity, while AD9257BSTZ-105 sacrifices resolution flexibility and on-chip processing to reduce component count in cost-sensitive, lower-SNR applications.
Availability
ADS5263IRGCT is available at Aetrix Electronics and suitable for MRI signal chains, spectroscopy instruments, and CCD imaging systems requiring stable component supply and long-term industrial temperature support (–40°C to +85°C).
Supply support for ADS5263IRGCT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-performance data converters for industrial, medical, and communications markets.
The ADS5263IRGCT belongs to TI's high-speed precision ADC product line, designed specifically for demanding medical imaging and scientific instrumentation where SNR, channel matching, and magnetic compatibility are critical.
FAQ
What resolution modes does the ADS5263IRGCT support, and how are they selected?
The ADS5263IRGCT supports two resolution modes: quad-channel 16-bit high-SNR mode (85-dBFS, 1.4 W) and quad-channel 14-bit low-power mode (74-dBFS, 785 mW). Mode selection is controlled via the INT/EXTZ pin and internal register configuration. In 14-bit mode, the 16-bit front-end stage is powered down, and dedicated INxB_P/M inputs are used. The ADS5263IRGCT allows dynamic switching between modes during operation to adapt to varying signal fidelity and thermal constraints.
Does the ADS5263IRGCT include on-chip digital processing features?
Yes, the ADS5263IRGCT integrates a configurable digital processing block that includes programmable FIR decimation filters (decimation factors of 2, 4, or 8), 0–12 dB digital gain, and 2- or 4-channel averaging. These functions operate in real time on the digitized data before LVDS serialization, reducing FPGA resource load and system latency. All settings are controlled via the serial interface (SCLK/SDATA/CSZ), and the ADS5263IRGCT provides dedicated test patterns to verify correct implementation in the receiving logic.
What is the purpose of the SYNC pin on the ADS5263IRGCT?
The SYNC pin on the ADS5263IRGCT provides hardware-level synchronization across multiple devices, ensuring deterministic phase alignment of sampling clocks and data frames. It is especially critical in multi-ADC configurations such as MRI receive arrays or multi-sensor spectroscopy systems. When asserted, SYNC resets internal timing counters and aligns the LVDS frame clock (ADCLKP/M) edges across all synchronized ADS5263IRGCT units, enabling coherent channel combining without post-processing skew correction.
Is the ADS5263IRGCT suitable for MRI environments, and what packaging option supports this?
Yes, the ADS5263IRGCT is explicitly qualified for MRI applications. Texas Instruments offers a non-magnetic package variant (marked ADS5263NM) with magnetic material excluded from the VQFN-64 construction. This prevents distortion of the static B₀ magnetic field and avoids eddy current heating during RF pulsing. The ADS5263IRGCT operates over the full industrial temperature range (–40°C to +85°C) and meets stringent ESD ratings (±2000 V HBM), making it suitable for integration directly into MRI scanner front-end modules.
How does the ADS5263IRGCT handle analog input referencing, and what are the VCM pin options?
The ADS5263IRGCT supports both internal and external reference modes, selected via the INT/EXTZ pin. In internal mode, the VCM pin outputs a stable 1.5 V common-mode voltage (±0.1 V) for biasing differential analog inputs. In external mode, the VCM pin accepts an externally supplied reference voltage (1.45–1.55 V) to set the ADC's reference point. The ADS5263IRGCT specifies VCM output current capability of ±3 mA in internal mode and input current of 0.5 mA in external mode, ensuring robust interfacing with precision op-amp driver stages.
ADS5263IRGCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 100M
- Number of Inputs:
- 4
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 4
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 3V ~ 3.6V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-VQFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS5263IRGCT FAQ
1.How can I place an order for ADS5263IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS5263IRGCT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADS5263IRGCT reliable?
The price and inventory of ADS5263IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS5263IRGCT is usually 5 days.
3.What payment methods are accepted for ADS5263IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS5263IRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS5263IRGCT?
ADS5263IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS5263IRGCT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADS5263IRGCT?
For technical support, including ADS5263IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS5263IRGCT requirements.
6.How does Aetrix verify that ADS5263IRGCT is sourced from the original manufacturer or authorized distributors?
All ADS5263IRGCT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADS5263IRGCT meets industry standards.
7.What is the process for return or replacement of ADS5263IRGCT?
All ADS5263IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with ADS5263IRGCT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADS5263IRGCT part is unused and in its original packaging.
Return procedure for ADS5263IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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