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Texas Instruments ADC12DL065CIVS
- Part No.:
- ADC12DL065CIVS
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-TQFP
- Datasheet:
-
ADC12DL065CIVS.pdf
- Description:
- IC ADC 12BIT PIPELINED 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,032
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Product details
Overview
ADC12DL065CIVS from Texas Instruments is a dual 12-bit, 65 MSPS analog-to-digital converter operating on a single +3.3V supply, delivering 11.0 effective bits at Nyquist with 69 dB SNR and 86 dB SFDR at 10 MHz input, used in ultrasound imaging front-ends and communications receivers requiring high dynamic range and low power.
For engineers reviewing the ADC12DL065CIVS datasheet, ADC12DL065CIVS pinout, ADC12DL065CIVS application, or ADC12DL065CIVS equivalent, key selection considerations include its 7-clock-cycle latency, multiplexed/parallel output mode selectability via MULTIPLEX pin, duty cycle stabilization option, 2.4V–3.6V output driver voltage support, and differential pipeline architecture optimized for full-power bandwidth up to 250 MHz.
Technical Context
The ADC12DL065CIVS implements a 10-stage differential pipeline architecture with digital error correction and an integrated sample-and-hold, enabling stable 12-bit conversion at 65 MSPS while maintaining 250 MHz full-power bandwidth. Its dual-channel design supports independent analog inputs (VINA±, VINB±) and shared clocking with programmable data format (offset binary/two's complement) and duty cycle stabilization control via DF/DCS pin.
It features separate analog (VA), digital (VD), and output driver (VDR) supplies, with strict layout requirements: |VA–VD| ≤100 mV, isolated AGND/DGND/DR GND planes, and dedicated 0.1 µF + 10 µF bypassing per supply group. The device operates across −40°C to +85°C and includes Power Down mode reducing consumption from 360 mW to 36 mW.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12 bits - guarantees monotonic operation with no missing codes over full temperature range |
| Sampling Rate | 65 MSPS - fixed maximum rate supported with ensured AC performance (SNR ≥67.5 dBc, SFDR ≥78.5 dBc) |
| Effective Bits (ENOB) | 11.0 bits at fIN = 10 MHz - defines usable dynamic resolution for baseband signal capture |
| Full-Power Bandwidth | 250 MHz - enables accurate digitization of wideband IF signals up to Nyquist without amplitude roll-off |
| Power Consumption | 360 mW typical at 65 MSPS - includes reference current; drops to 36 mW in Power Down mode |
| Data Latency | 7 clock cycles in parallel mode - determines minimum processing pipeline depth for real-time FPGA/ASIC interfacing |
| DNL | ±0.4 LSB typical - ensures minimal code-width variation critical for histogram-based measurement accuracy |
| Output Compatibility | 2.4V–3.6V logic levels - allows direct interface to 2.5V or 3.3V digital systems without level shifters |
Pinout & Package
The ADC12DL065CIVS is housed in a 64-lead TQFP package (Package Number PAG0064A) with exposed thermal pad, requiring strict separation of analog, digital, and driver ground planes per TI layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINA+, VINA− VINB+, VINB− | Differential analog inputs | Accept 2.0 VP-P full-scale differential swing (with 1.0V VREF); single-ended use possible but degrades SFDR by ≥3 dB |
| CLK | Asynchronous sampling clock input | Rising-edge triggered; requires 15–65 MHz range with 20–80% duty cycle if DCS enabled, 40–60% if disabled |
| MULTIPLEX | Output bus configuration control | Low = parallel A/B outputs on DA0–DA11 and DB0/ABb–DB11; high = time-multiplexed A/B on DA0–DA11 with ABb sync |
| DF/DCS | Four-state function pin | Selects output format (offset binary/two's complement) and enables/disables internal duty cycle stabilizer on CLK |
| OEA, OEB | Channel-specific output enable | Active-low; places respective DAx or DBx outputs in high-impedance state for bus sharing or power gating |
| PD | Global power-down control | High = 36 mW standby; low = full 360 mW operation - exit time <1 µs with proper decoupling |
| VDR | Digital output driver supply | Independent 2.4V–3.6V rail; must not exceed VD; bypassing critical for jitter reduction and logic-level integrity |
| VREF | Reference voltage selection/input | Configures internal 0.5V/1.0V ref or accepts external 0.8–1.2V; bypass with 0.1 µF to AGND required |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 12-bit pipelines | Enables simultaneous sampling of two RF/IF channels with <±4% gain match and <±0.3% offset match |
| Programmable output data format | Offset binary or two's complement selectable via DF/DCS pin - simplifies sign handling in DSP firmware |
| Integrated duty cycle stabilizer | Compensates for clock asymmetry to maintain timing margins in high-speed interfaces without external PLL |
| Separate VDR supply for outputs | Allows interfacing to 2.5V FPGA I/O banks while maintaining 3.3V analog/digital core - eliminates level shifters |
| On-chip sample-and-hold with 250 MHz BW | Supports undersampling of IF signals up to 125 MHz without external anti-alias filtering |
| Industrial temperature range | −40°C to +85°C operation with guaranteed INL ≤±1.7 LSB and SNR ≥67.5 dBc across full range |
Applications
| Ultrasound Imaging Front-End | Communications Receiver |
|---|---|
Use Scenario: Digitizing echo return signals from phased-array transducers in portable ultrasound systems. IC Role / Device Role / Timing Role: Dual-channel ADC capturing I/Q baseband outputs from quadrature demodulators at 65 MSPS with 11-bit ENOB. Use Value: Enables real-time B-mode image reconstruction with >140 dB dynamic range using on-chip 250 MHz full-power bandwidth. | Use Scenario: Direct-conversion receiver in broadband wireless infrastructure supporting LTE/WiMAX standards. IC Role / Device Role / Timing Role: Simultaneous sampling of in-phase and quadrature analog baseband paths prior to digital downconversion. Use Value: Delivers 86 dB SFDR at 10 MHz, suppressing adjacent channel interference without external analog filtering. |
| Sonar/Radar Signal Acquisition | DSP Front-End for Test Equipment |
Use Scenario: High-speed data capture in pulsed Doppler sonar systems requiring precise time-of-flight measurement. IC Role / Device Role / Timing Role: Dual ADC converting differential echo returns with 7-cycle deterministic latency for FPGA-based pulse compression. Use Value: Aperture jitter of 1.2 ps RMS ensures sub-millimeter range resolution in underwater acoustic ranging. | Use Scenario: Modular digitizer card in automated test equipment capturing transient waveforms up to 125 MHz. IC Role / Device Role / Timing Role: Low-latency ADC feeding real-time FFT engines with multiplexed output mode reducing FPGA pin count. Use Value: 360 mW total power enables dense multi-channel configurations without forced-air cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 12-bit, 65 MSPS ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS5272IPFP | 12-bit, dual 65 MSPS with 72 dB SNR, 90 dB SFDR; uses 1.8V/3.3V dual supplies; no internal reference | Higher SFDR suits radar EW systems; requires external reference and level-shifting for 2.5V logic | Prefer when spurious-free performance >88 dB is mandatory and board space allows extra reference IC |
| AD9222ASTZ | 12-bit, dual 65 MSPS with 70 dB SNR, 85 dB SFDR; 3.3V-only supply; includes internal reference; 48-lead LQFP | Smaller footprint but lower full-power bandwidth (100 MHz); no duty cycle stabilizer or multiplex mode | Prefer for space-constrained industrial controllers where 250 MHz bandwidth is unnecessary |
Compared with ADS5272IPFP and AD9222ASTZ, the ADC12DL065CIVS uniquely combines integrated reference, duty cycle stabilization, multiplexed/parallel output flexibility, and 250 MHz full-power bandwidth in a single 64-pin TQFP - making it optimal for ultrasound and broadband communications where layout simplicity and wide IF capture are critical.
Availability
ADC12DL065CIVS is available at Aetrix Electronics and suitable for ultrasound imaging systems, communications receiver designs, and sonar signal acquisition requiring stable component supply with guaranteed long-term manufacturability and industrial temperature compliance.
Supply support for ADC12DL065CIVS 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, automotive, and communications markets.
The ADC12DL065CIVS belongs to TI's high-speed precision ADC product line, designed specifically for dual-channel, medium-speed digitization in medical imaging, test equipment, and broadband wireless infrastructure where power efficiency and interface flexibility are essential.
FAQ
What is the guaranteed minimum sampling rate for ADC12DL065CIVS with full AC specifications met?
The ADC12DL065CIVS guarantees full AC performance-including SNR ≥67.5 dBc and SFDR ≥78.5 dBc-at its maximum rated sampling rate of 65 MSPS. The minimum clock frequency is 15 MHz, but AC specs are only ensured at 65 MSPS per the Electrical Characteristics table; operation below 65 MSPS may yield improved SNR but is not characterized for all parameters. The ADC12DL065CIVS achieves 11.0 effective bits specifically at 65 MSPS with 10 MHz input.
Does ADC12DL065CIVS support single-ended analog inputs, and what is the impact on performance?
Yes, ADC12DL065CIVS supports single-ended operation by tying one input of each pair (e.g., VINA− or VINB−) to common-mode voltage (VCM), but this degrades dynamic performance: SFDR drops by ≥3 dB and SNR decreases by ~1–2 dB compared to differential mode. The datasheet explicitly states that "full use of the differential input is recommended for optimum performance." For ADC12DL065CIVS, differential input preserves the specified 86 dB SFDR and 69 dB SNR at 10 MHz.
How does the MULTIPLEX pin affect data output timing and FPGA interface design for ADC12DL065CIVS?
When MULTIPLEX = low, ADC12DL065CIVS outputs Channel A on DA0–DA11 and Channel B on DB0/ABb–DB11 in parallel, with 7-cycle latency for both. When MULTIPLEX = high, both channels time-share DA0–DA11 with ABb indicating valid channel (high = A, low = B), increasing latency to 7.5 cycles for A and 8 cycles for B. This reduces FPGA pin count but requires additional logic to demux ABb-synchronized data - critical for real-time DSP pipelines using ADC12DL065CIVS.
What is the role of the VDR pin on ADC12DL065CIVS, and what happens if it is tied to VA?
The VDR pin supplies power exclusively to the digital output drivers of ADC12DL065CIVS and must be set between 2.4V and VD (≤3.6V). It can be tied to VA only if VA is within 2.4–3.6V and properly bypassed; however, doing so eliminates level-shifting capability. If interfacing to 2.5V FPGA I/O, VDR should be set to 2.5V - enabling TTL/CMOS-compatible outputs without external buffers. Violating VDR voltage limits risks output stage damage or increased jitter in ADC12DL065CIVS operation.
Can ADC12DL065CIVS operate with an external reference, and what are the precision requirements?
Yes, ADC12DL065CIVS accepts external references from 0.8V to 1.2V applied to the VREF pin, with optimal performance at 1.0V. The reference input resistance is ≥1 MΩ, and VREF must be bypassed to AGND with a 0.1 µF capacitor. Using an external reference like the LM4051CIM3-ADJ improves gain stability versus temperature (TC GE = 10 ppm/°C) and avoids internal reference drift. All AC specs for ADC12DL065CIVS - including 69 dB SNR - are specified with 1.0V external reference.
ADC12DL065CIVS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-TQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 40M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 3V ~ 3.6V
- Voltage - Supply, Digital:
- 2.4V ~ 3.6V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-TQFP (10x10)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC12DL065CIVS FAQ
1.How can I place an order for ADC12DL065CIVS through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC12DL065CIVS 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 ADC12DL065CIVS reliable?
The price and inventory of ADC12DL065CIVS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC12DL065CIVS is usually 5 days.
3.What payment methods are accepted for ADC12DL065CIVS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC12DL065CIVS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC12DL065CIVS?
ADC12DL065CIVS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC12DL065CIVS 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 ADC12DL065CIVS?
For technical support, including ADC12DL065CIVS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC12DL065CIVS requirements.
6.How does Aetrix verify that ADC12DL065CIVS is sourced from the original manufacturer or authorized distributors?
All ADC12DL065CIVS 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 ADC12DL065CIVS meets industry standards.
7.What is the process for return or replacement of ADC12DL065CIVS?
All ADC12DL065CIVS units undergo pre-shipment inspection (PSI). If there is an issue with ADC12DL065CIVS, 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 ADC12DL065CIVS part is unused and in its original packaging.
Return procedure for ADC12DL065CIVS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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