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Texas Instruments ADC12D040CIVS/NOPB
- Part No.:
- ADC12D040CIVS/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-TQFP
- Datasheet:
-
ADC12D040CIVS/NOPB.pdf
- Description:
- IC ADC 12BIT PIPELINED 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,144
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Product details
Overview
ADC12D040CIVS/NOPB from Texas Instruments is a dual-channel, 12-bit, 40 MSPS CMOS analog-to-digital converter with internal/external reference support, 10.9 ENOB at 10 MHz, 68 dB SNR, and 600 mW total power consumption. It features differential pipeline architecture, on-chip sample-and-hold, and operates from a single +5 V supply for ultrasound imaging, communications receivers, and sonar/radar front-ends.
For engineers reviewing the ADC12D040CIVS/NOPB datasheet, ADC12D040CIVS/NOPB pinout, ADC12D040CIVS/NOPB application, or ADC12D040CIVS/NOPB equivalent, key selection considerations include its 6-clock-cycle latency, 2.4–5 V output driver voltage compatibility, dual independent 12-bit parallel buses (DA0–DA11/DB0–DB11), and industrial temperature range (−40°C to +85°C) in 64-lead TQFP.
Technical Context
The ADC12D040CIVS/NOPB implements an 11-stage differential pipeline architecture with digital error correction and integrated sample-and-hold, enabling 12-bit resolution without missing codes across −40°C to +85°C. Its dual independent conversion paths share clock and reference resources but deliver separate data streams with matched gain (±0.05%FS) and offset (±0.02%FS).
It supports both internal 2.0 V bandgap reference and external reference (1.0–2.4 V) via INT/EXT REF pin control, while digital outputs are powered by a dedicated VDR supply (2.35–5 V) for mixed-voltage system interfacing. Aperture jitter is specified at 2 ps rms, supporting high-fidelity sampling of RF and IF signals up to 100 MHz full-power bandwidth.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with guaranteed no missing codes - ensures monotonic transfer function for precision measurement systems. |
| Sampling Rate | 40 MSPS minimum - enables real-time digitization of baseband and IF signals up to 20 MHz Nyquist bandwidth. |
| ENOB @ 10 MHz | 10.9 bits typical - defines usable dynamic range equivalent to a noise-free 10.9-bit converter for signal integrity validation. |
| SNR @ 10 MHz | 68 dB typical - determines minimum detectable signal level above quantization and thermal noise floor. |
| SFDR @ 10 MHz | 80 dB typical - indicates spurious-free performance critical for multi-tone communication receiver applications. |
| Data Latency | 6 clock cycles - fixes deterministic timing relationship between sample capture and output data availability. |
| Power Consumption | 600 mW typical at 40 MSPS - enables thermal management in dense mixed-signal PCB layouts with defined θJ-A = 50°C/W. |
| Supply Voltage | +5 V ±5% (VA/VD), +2.35–5 V (VDR) - allows flexible I/O voltage scaling while maintaining analog core stability. |
Pinout & Package
The ADC12D040CIVS/NOPB is housed in a 64-lead TQFP (Package Number PAG) with exposed thermal pad, rated for industrial temperature operation (−40°C to +85°C). Pin assignments support segregated analog/digital/power domains including dedicated DR GND pins for output driver isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINA+, VINA− VINB+, VINB− | Differential analog inputs (Channel A/B) | Accept 2×VREF full-scale differential swing (e.g., 4 VP-P at 2.0 VREF); single-ended use possible but degrades SFDR by ≥6 dB. |
| VREF, INT/EXT REF | Reference input and selection control | VREF accepts 1.0–2.4 V external source; INT/EXT REF logic-high selects external mode, logic-low enables internal 2.0 V bandgap. |
| CLK | Asynchronous sampling clock input | Accepts 100 kHz–40 MHz TTL/CMOS clock; rising-edge triggered; tAJ = 2 ps rms aperture jitter limits SNR at high input frequencies. |
| OEA, OEB | Output enable controls (Channel A/B) | Active-low enables respective 12-bit bus (DA0–DA11 or DB0–DB11); permits time-multiplexed or interleaved data readout. |
| PD | Power-down control | Logic-high reduces total power from 600 mW to 75 mW; tPD = 500 ns exit time enables rapid low-power state transitions. |
| OF | Output format select | Logic-low yields offset binary; logic-high yields 2's complement - simplifies DSP interface alignment without external logic. |
| DA0–DA11 DB0–DB11 | Parallel digital outputs (LSB→MSB) | 12-bit buses driven by VDR-supplied buffers; compatible with 2.4–5 V logic families; tOD = 17.5 ns max delay referenced to CLK edge. |
| VA, VD, VDR AGND, DGND, DR GND | Analog/digital/output driver supplies & grounds | Three isolated power/ground domains prevent noise coupling; |VA–VD| ≤ 100 mV required for INL/DNL compliance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 12-bit pipelines | Enables simultaneous sampling of two analog channels with matched gain/offset for I/Q demodulation or stereo acquisition. |
| 6-clock-cycle deterministic latency | Allows precise synchronization with FPGA or ASIC logic for real-time filtering, decimation, or trigger generation. |
| VDR-supplied output drivers (2.4–5 V) | Permits direct interface to 3.3 V or 2.5 V logic without level shifters, reducing BOM count and signal integrity risk. |
| Internal 2.0 V reference with external option | Eliminates external reference IC in cost-sensitive designs; external reference support maintains accuracy when tighter tempco (<15 ppm/°C) is needed. |
| Power-down mode (75 mW) | Reduces thermal load during idle periods in battery-backed or thermally constrained systems such as portable ultrasound. |
| 64-lead TQFP with thermal pad | Provides manufacturable footprint with verified thermal resistance (θJ-A = 50°C/W) for sustained 40 MSPS operation in industrial environments. |
Applications
| Ultrasound Imaging Front-End | Communications Receiver |
|---|---|
Use Scenario: Digitizing echo return signals from phased-array transducers operating at 2–15 MHz center frequencies. IC Role / Device Role / Timing Role: Dual-channel ADC capturing I/Q baseband outputs from quadrature demodulators with matched channel characteristics. Use Value: 10.9 ENOB and 80 dB SFDR preserve tissue contrast resolution and reject adjacent channel interference in real-time B-mode processing. | Use Scenario: Downconverting and digitizing intermediate frequency (IF) signals in cable modem and xDSL line cards. IC Role / Device Role / Timing Role: High-speed sampling of 5–65 MHz IF bands prior to digital filtering and symbol decoding in FPGAs. Use Value: 68 dB SNR and 100 MHz full-power bandwidth support accurate constellation mapping for 256-QAM and higher modulation schemes. |
| Sonar/Radar Signal Acquisition | Test & Measurement Instrumentation |
Use Scenario: Capturing pulsed return waveforms in marine sonar and ground-penetrating radar systems with microsecond timing precision. IC Role / Device Role / Timing Role: Time-of-flight digitizer synchronizing to external trigger with deterministic 6-cycle latency and low aperture jitter. Use Value: 2 ps rms aperture jitter minimizes time-domain uncertainty, enabling <1 cm range resolution at 1500 m/s sound velocity. | Use Scenario: High-accuracy waveform capture in digital storage oscilloscopes and spectrum analyzers requiring calibrated amplitude fidelity. IC Role / Device Role / Timing Role: Precision digitizer with guaranteed 12-bit linearity (±0.7 LSB INL) and stable gain/offset over temperature. Use Value: ±0.05%FS channel-to-channel gain match and 100 ppm/°C internal reference tempco ensure traceable measurement repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 12-bit, 40 MSPS ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC12DL066CIVS | Pin-compatible 12-bit, 65 MSPS variant with identical pinout and register map; higher speed increases power to 850 mW. | Better suited for wider IF bandwidths (>30 MHz) where 65 MSPS sampling enables improved alias rejection. | Select ADC12DL066CIVS when system clock budget allows higher sampling rates and thermal design accommodates increased power. |
| ADS5270IPFP | 8-channel, 12-bit, 40 MSPS ADC with serial LVDS output; no internal reference; requires external clock buffer and reference. | Targets high-channel-count data acquisition where space-constrained PCBs benefit from serial interface and reduced pin count. | Choose ADS5270IPFP for multi-sensor systems needing >2 channels and board area optimization, accepting added external component complexity. |
Compared with ADC12D040CIVS/NOPB, ADC12DL066CIVS offers higher throughput at the cost of power and thermal headroom, while ADS5270IPFP trades parallel simplicity for channel density and interface flexibility-neither is pin-compatible, requiring layout revision.
Availability
ADC12D040CIVS/NOPB is available at Aetrix Electronics and suitable for ultrasound imaging systems, communications infrastructure equipment, and sonar/radar signal processing requiring stable component supply and long-term industrial-grade reliability.
Supply support for ADC12D040CIVS/NOPB 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 ADC12D040CIVS/NOPB belongs to TI's precision high-speed ADC product line, engineered for demanding signal acquisition in medical imaging, test equipment, and defense electronics where resolution, linearity, and timing determinism are critical.
FAQ
What is the maximum clock frequency supported by the ADC12D040CIVS/NOPB?
The ADC12D040CIVS/NOPB guarantees operation up to 40 MHz clock frequency, with minimum specification of 40 MSPS. It accepts clocks from 100 kHz to 40 MHz, and timing parameters like tCH, tCL, and tOD are fully characterized at 40 MHz. Operation beyond 40 MHz is not specified and may degrade ENOB, SNR, or cause metastability in the ADC12D040CIVS/NOPB's pipeline stages.
Does the ADC12D040CIVS/NOPB support both differential and single-ended analog inputs?
Yes, the ADC12D040CIVS/NOPB accepts differential inputs on VINA+/VINA− and VINB+/VINB− pairs, delivering optimal performance (e.g., 80 dB SFDR). Single-ended operation is possible by tying the inverting input to common-mode voltage (VCM), but this reduces SFDR by ≥6 dB and increases even-order harmonics. The ADC12D040CIVS/NOPB datasheet explicitly recommends differential drive for all high-fidelity applications.
How does the power-down mode affect the ADC12D040CIVS/NOPB's functionality?
When PD pin is driven high, the ADC12D040CIVS/NOPB enters power-down mode, reducing total power consumption from 600 mW to 75 mW. All analog and digital circuitry except bias references is disabled; outputs go high-impedance; and conversion halts. Exit time is 500 ns after PD returns low, after which full performance resumes. This mode preserves system-level power budgets in intermittent-acquisition systems using the ADC12D040CIVS/NOPB.
Can the ADC12D040CIVS/NOPB operate with a 3.3 V digital supply instead of 5 V?
No-the ADC12D040CIVS/NOPB requires VA and VD supplies of +4.75 V to +5.25 V per its Operating Ratings. However, its digital output drivers (VDR pins) accept 2.4–5 V, enabling direct interface to 3.3 V or 2.5 V logic families without level shifters. The core analog and digital logic remain 5 V-only; using 3.3 V on VA or VD violates Absolute Maximum Ratings and risks functional failure of the ADC12D040CIVS/NOPB.
What is the purpose of the DR GND pins on the ADC12D040CIVS/NOPB?
The DR GND pins (23, 31, 40, 50, 58) provide a dedicated ground return path for the VDR-supplied output drivers, isolating high-speed digital switching noise from AGND and DGND domains. Per TI layout guidelines, DR GND must be connected to system digital ground but kept physically separate from AGND/DGND near the ADC12D040CIVS/NOPB to prevent ground bounce from corrupting analog performance or increasing DNL.
ADC12D040CIVS/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-TQFP
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 40M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 2.35V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-TQFP (10x10)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC12D040CIVS/NOPB FAQ
1.How can I place an order for ADC12D040CIVS/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC12D040CIVS/NOPB 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 ADC12D040CIVS/NOPB reliable?
The price and inventory of ADC12D040CIVS/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC12D040CIVS/NOPB is usually 5 days.
3.What payment methods are accepted for ADC12D040CIVS/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC12D040CIVS/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC12D040CIVS/NOPB?
ADC12D040CIVS/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC12D040CIVS/NOPB 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 ADC12D040CIVS/NOPB?
For technical support, including ADC12D040CIVS/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC12D040CIVS/NOPB requirements.
6.How does Aetrix verify that ADC12D040CIVS/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC12D040CIVS/NOPB 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 ADC12D040CIVS/NOPB meets industry standards.
7.What is the process for return or replacement of ADC12D040CIVS/NOPB?
All ADC12D040CIVS/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC12D040CIVS/NOPB, 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 ADC12D040CIVS/NOPB part is unused and in its original packaging.
Return procedure for ADC12D040CIVS/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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