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Texas Instruments ADC12DL2500ACF
- Part No.:
- ADC12DL2500ACF
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 256-BBGA, FCBGA
- Datasheet:
-
ADC12DL2500ACF.pdf
- Description:
- 12-bit, dual 2.5GSPS or single
- Quantity:
- Payment:
- Shipping:
Inventory:426
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Product details
Overview
ADC12DL2500ACF from Texas Instruments is a 12-bit, dual-channel analog-to-digital converter operating at up to 2.5 GSPS per channel, with buffered 8 GHz analog input bandwidth, LVDS interface supporting up to 48 data pairs at 1.6 Gbps, and <10 ns total latency-designed for high-fidelity signal capture in microwave backhaul and automotive radar test systems.
For engineers reviewing the ADC12DL2500ACF datasheet, ADC12DL2500ACF pinout, ADC12DL2500ACF application, or ADC12DL2500ACF equivalent, this page delivers verified specifications, validated pin functions, dual-channel timing architecture details, noise floor performance at 2.5 GSPS, and real-world synchronization use cases including SYSREF calibration and timestamp-enabled sample marking.
Technical Context
The ADC12DL2500ACF implements a dual-channel interleaved sampling architecture with independent analog front-ends, each supporting 2.5 GSPS operation and 8 GHz –3 dB input bandwidth. It uses four DDR LVDS data buses (A/B/C/D), each with 12-bit parallel output, four strobe signals, and four DDR clocks to maintain deterministic timing across high-speed data lanes.
Its low-latency interface includes noiseless aperture delay (TAD) adjustment in 19 fs steps, temperature- and voltage-invariant sampling control, automatic SYSREF timing calibration, and dual overrange detection thresholds per channel-enabling precise multi-device synchronization without external alignment circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit-supports high dynamic range digitization of wideband RF and IF signals. |
| Dual-Channel Sample Rate | 2.5 GSPS-enables simultaneous capture of two 1.25 GHz instantaneous bandwidth signals. |
| Analog Input Bandwidth | 8 GHz (–3 dB)-preserves fidelity of millimeter-wave and ultra-wideband inputs without external filtering. |
| Noise Floor (Dual-Channel) | –149.8 dBFS/Hz-delivers >74 dB SNR for low-noise spectral analysis in LIDAR and SIGINT. |
| Total Interface Latency | <10 ns-critical for real-time closed-loop radar testing and time-of-flight measurement. |
| LVDS Data Rate | Up to 1.6 Gbps per pair-supports high-throughput streaming to FPGA-based processing with minimal serialization overhead. |
| Power Consumption | 3 W-optimized for high-density instrumentation where thermal management and power efficiency are constrained. |
Pinout & Package
ADC12DL2500ACF is housed in a 256-ball Flip-Chip BGA (FCBGA) package measuring 17 mm × 17 mm, with dedicated analog (VA11, VA19), digital (VD11), and LVDS (VLVDS) supply domains, and separate AGND/DGND planes for noise isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK+/CLK– | Differential sampling clock input | Accepts AC-coupled LVPECL/LVDS clock; sampling occurs on rising edge in dual-channel mode. |
| INA+/INA–, INB+/INB– | Differential analog inputs (Ch A & Ch B) | 50 Ω internally terminated; 0 V common-mode; supports full-scale 0.8 VPP-DIFF input range. |
| DA0+ to DA11+, DC0+ to DC11+, DB0+ to DB11+, DD0+ to DD11+ | LVDS data outputs (4 × 12-bit buses) | Deliver parallel 12-bit samples per channel with DDR timing; enable scalable FPGA interface design. |
| DACLK+/DACLK–, DCCLK+/DCCLK–, DBCLK+/DBCLK–, DDCLK+/DDCLK– | LVDS DDR data clocks | Four independent clocks synchronize respective 12-bit buses; eliminate skew between channels. |
| DASTR+/DASTR–, DCSTR+/DCSTR–, DBSTR+/DBSTR–, DDSTR+/DDSTR– | LVDS strobe signals | Provide deterministic frame alignment across all 48 data pairs; simplify multi-ADC system sync. |
| SYSREF+/SYSREF– | Differential system reference input | Enables JESD204B-like multi-device alignment; triggers automatic timing calibration. |
| TMSTP+/TMSTP– | Differential timestamp input | Allows precise marking of individual samples for time-critical applications like LIDAR pulse timing. |
Key Features
| Feature | Design Value |
|---|---|
| Noiseless TAD adjustment | 19 fs step resolution enables sub-picosecond sampling alignment across temperature/voltage variations. |
| Automatic SYSREF calibration | Eliminates manual timing margining during board bring-up and multi-ADC system integration. |
| Dual overrange detection (OVR_T0/OVR_T1) | Two independent thresholds per channel provide early warning and fault logging without CPU intervention. |
| Internal dithering | Reduces high-order harmonic distortion in low-amplitude signals-critical for spectral purity in oscilloscopes. |
| Buffered analog inputs | High-Z input stage with 0 V VCMI simplifies driver design and improves impedance matching at mmWave frequencies. |
Applications
| Oscilloscope Front-End | Automotive Radar Tester |
|---|---|
Use Scenario: Capturing transient RF pulses and modulated waveforms in real-time digital storage oscilloscopes with ≥1 GHz analog bandwidth. IC Role / Device Role / Timing Role: Dual-channel ADC core performing synchronized 2.5 GSPS sampling on two independent signal paths with <10 ns latency. Use Value: Enables 1.25 GHz instantaneous bandwidth per channel while maintaining phase coherence for vector signal analysis. | Use Scenario: Validating 77/79 GHz automotive radar transceivers using baseband I/Q demodulation and time-of-flight measurement. IC Role / Device Role / Timing Role: High-fidelity digitizer capturing chirp responses with timestamp-marked samples for nanosecond-level distance resolution. Use Value: 8 GHz analog bandwidth preserves chirp fidelity; TMSTP± input allows direct pulse-edge timestamping without external TDC. |
| Electronic Warfare Receiver | Microwave Backhaul Monitor |
Use Scenario: Wideband signal intelligence (SIGINT) collection across 2–6 GHz spectrum in compact EW pods. IC Role / Device Role / Timing Role: Dual-channel digitizer operating in interleaved mode to cover 5 GHz instantaneous bandwidth with 12-bit resolution. Use Value: –149.8 dBFS/Hz noise floor ensures detection of low-power emitters; LVDS interface supports streaming to real-time DSP engines. | Use Scenario: Monitoring E-band (60–90 GHz) wireless backhaul links for spectral occupancy, interference, and modulation quality. IC Role / Device Role / Timing Role: Digitizer capturing downconverted IF signals with 2.5 GSPS rate to reconstruct 1.25 GHz channel bandwidths. Use Value: Low-latency LVDS output enables immediate FPGA-based FFT and error-vector magnitude (EVM) computation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC12DJ5200RF | 12-bit, dual-channel, 5.2 GSPS max; integrated JESD204C interface; higher power (5.4 W); 10 mm × 10 mm FCBGA. | Targets next-gen 5G mmWave test equipment requiring serial interface and higher sample rates. | Select when JESD204C compatibility, smaller footprint, or >2.5 GSPS per channel is required. |
| AD9689-2600 | 14-bit, dual-channel, 2.6 GSPS; JESD204B interface; lower noise floor (–152 dBFS/Hz); 12.7 mm × 12.7 mm BGA. | Focused on high-SNR applications like medical imaging and scientific instrumentation. | Select when 14-bit resolution and superior SFDR outweigh LVDS simplicity and lower latency. |
Compared with ADC12DL2500ACF, ADC12DJ5200RF offers higher speed and modern serial interface but increases power and complexity, while AD9689-2600 trades LVDS determinism for higher resolution and JESD204B ecosystem support-making ADC12DL2500ACF optimal for latency-sensitive, FPGA-centric radar and test instrumentation.
Availability
ADC12DL2500ACF is available at Aetrix Electronics and suitable for microwave backhaul monitoring, electronic warfare receivers, and automotive radar testers requiring stable component supply, long-term production continuity, and traceable sourcing from authorized channels.
Supply support for ADC12DL2500ACF 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, communications, and test & measurement markets.
The ADC12DLx500 family-including ADC12DL2500ACF-is engineered for wideband, low-latency digitization in instrumentation and defense electronics, emphasizing deterministic timing, multi-device synchronization, and RF signal integrity at multi-GSPS rates.
FAQ
What is the maximum dual-channel sample rate supported by the ADC12DL2500ACF?
The ADC12DL2500ACF supports up to 2.5 GSPS in dual-channel mode-meaning each of its two independent channels samples at 2.5 GSPS simultaneously. This enables 1.25 GHz instantaneous bandwidth per channel with full 12-bit resolution, as confirmed in the device's Electrical Characteristics tables for dual-channel operation at 2.5 GSPS. The ADC12DL2500ACF achieves this without interpolation or decimation, preserving signal fidelity for demanding RF applications.
Does the ADC12DL2500ACF support single-ended analog inputs?
No, the ADC12DL2500ACF requires differential analog inputs only. Pins INA+/INA– and INB+/INB– are fully differential, internally terminated to AGND with 50 Ω resistors, and specify a 0 V common-mode voltage (VCMI). Single-ended drive is not supported per the Recommended Operating Conditions and Pin Functions table; attempting single-ended connection degrades common-mode rejection and may violate absolute maximum ratings.
How does the ADC12DL2500ACF achieve sub-10 ns latency?
The ADC12DL2500ACF achieves <10 ns total latency through a combination of optimized analog front-end design, minimized pipeline stages, and direct LVDS output mapping-bypassing internal FIFOs or digital processing blocks. Its latency is measured from analog input to first valid LVDS data bit, and is guaranteed across temperature and voltage per the Timing Requirements section (Section 5.9). This deterministic latency is critical for time-critical applications such as LIDAR time-of-flight and closed-loop radar testing.
Can the ADC12DL2500ACF be synchronized with other ADCs in a multi-device system?
Yes, the ADC12DL2500ACF supports robust multi-device synchronization via SYSREF+/SYSREF–, TMSTP+/TMSTP–, and four dedicated strobe signals (DASTR, DCSTR, DBSTR, DDSTR). Its automatic SYSREF timing calibration compensates for inter-device skew, while noiseless TAD adjustment (19 fs steps) enables picosecond-level sampling alignment. These features are validated in the Synchronization section (Section 6.4) and used in TI reference designs for phased-array and multi-channel test systems.
What are the supply voltage requirements for the ADC12DL2500ACF?
The ADC12DL2500ACF requires three distinct supply domains: 1.1 V for analog core (VA11) and digital logic (VD11), 1.9 V for analog front-end buffers (VA19), and 1.1–1.9 V for the LVDS interface (VLVDS). Each domain has dedicated pins and must be independently filtered and decoupled per the Power Supply Recommendations (Section 7.4). Deviation from these voltages risks parametric degradation or permanent damage, as specified in Absolute Maximum Ratings (Section 5.1).
ADC12DL2500ACF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 256-BBGA, FCBGA
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 5G
- Number of Inputs:
- 1, 2
- Input Type:
- Differential, Single Ended
- Data Interface:
- LVDS - Parallel
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- 0:2
- Number of A/D Converters:
- 2
- Architecture:
- Folding Interpolating
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 1.05V ~ 1.15V, 1.8V ~ 2V
- Voltage - Supply, Digital:
- 1.05V ~ 1.15V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 256-FCBGA (17x17)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC12DL2500ACF FAQ
1.How can I place an order for ADC12DL2500ACF through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC12DL2500ACF 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 ADC12DL2500ACF reliable?
The price and inventory of ADC12DL2500ACF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC12DL2500ACF is usually 5 days.
3.What payment methods are accepted for ADC12DL2500ACF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC12DL2500ACF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC12DL2500ACF?
ADC12DL2500ACF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC12DL2500ACF 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 ADC12DL2500ACF?
For technical support, including ADC12DL2500ACF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC12DL2500ACF requirements.
6.How does Aetrix verify that ADC12DL2500ACF is sourced from the original manufacturer or authorized distributors?
All ADC12DL2500ACF 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 ADC12DL2500ACF meets industry standards.
7.What is the process for return or replacement of ADC12DL2500ACF?
All ADC12DL2500ACF units undergo pre-shipment inspection (PSI). If there is an issue with ADC12DL2500ACF, 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 ADC12DL2500ACF part is unused and in its original packaging.
Return procedure for ADC12DL2500ACF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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