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Texas Instruments ADC12D040CIVSX/NOPB
- Part No.:
- ADC12D040CIVSX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-TQFP
- Datasheet:
-
ADC12D040CIVSX/NOPB.pdf
- Description:
- IC ADC 12BIT PIPELINED 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,193
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Product details
Overview
ADC12D040CIVSX/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 typical power consumption. It features differential pipeline architecture, on-chip sample-and-hold, and separate digital output driver supply (2.4–5 V) for system-level voltage compatibility. Used in ultrasound imaging front-ends requiring high dynamic range and channel matching.
For engineers reviewing the ADC12D040CIVSX/NOPB datasheet, ADC12D040CIVSX/NOPB pinout, ADC12D040CIVSX/NOPB application, or ADC12D040CIVSX/NOPB equivalent, key selection criteria include dual-channel latency (6 clock cycles), inter-channel gain match (±0.05% FS), full-power bandwidth (100 MHz), and industrial temperature operation (−40°C to +85°C).
Technical Context
The ADC12D040CIVSX/NOPB implements an 11-stage differential pipeline architecture with digital error correction and integrated sample-and-hold per channel. Its dual independent conversion paths share clock and reference resources but maintain separate analog inputs (VINA±/VINB±), output buses (DA0–DA11/DB0–DB11), and output enable controls (OEA/OEB).
It supports both internal 2.0 V bandgap reference and external reference (1.0–2.4 V) via INT/EXT REF pin control. Digital outputs are TTL/CMOS-compatible with configurable offset binary or 2's complement format, and output drivers accept independent VDR supply (2.4–5 V) decoupled from VA/VD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes - guarantees monotonic transfer function and deterministic code mapping across full input range. |
| Sampling Rate | 40 MSPS minimum - enables real-time digitization of IF signals up to 20 MHz without aliasing under Nyquist criterion. |
| ENOB @ 10 MHz | 10.9 bits typical - corresponds to effective resolution of ~11 bits for sinusoidal inputs, critical for high-fidelity signal capture in communications receivers. |
| SNR @ 10 MHz | 68 dB typical - defines usable dynamic range of ~11.3 bits; directly impacts signal detectability in low-SNR environments like sonar/radar. |
| Data Latency | 6 clock cycles - fixed pipeline delay simplifies timing closure in synchronous FPGA-based data acquisition systems. |
| Power Consumption | 600 mW typical at 40 MSPS - includes analog, digital, and reference current; drops to 75 mW in power-down mode for burst-mode operation. |
| Supply Voltage | +5 V ±5% (VA/VD); +2.4 V to VD (VDR) - allows interface to 3.3 V or 5 V logic while maintaining analog performance integrity. |
Pinout & Package
ADC12D040CIVSX/NOPB is housed in a 64-lead TQFP package (Package Number PAG) with exposed thermal pad, rated for −40°C to +85°C industrial operation.
| 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 V ref); single-ended use possible but degrades SFDR by ≥10 dB. |
| CLK | Asynchronous sampling clock input | Rising-edge triggered; supports 100 kHz–40 MHz operation; jitter tolerance ≤2 ps RMS aperture uncertainty limits noise floor degradation. |
| OEA, OEB | Output enable (active-low) per channel | Tri-states DA0–DA11 or DB0–DB11 independently - enables time-multiplexed bus sharing or channel gating in multi-ADC systems. |
| PD | Power-down control input | High-active; reduces total power from 600 mW to 75 mW within 500 ns - suitable for duty-cycled acquisition in portable ultrasound systems. |
| INT/EXT REF | Reference source select | Logic low selects internal 2.0 V bandgap; logic high enables external reference - eliminates need for external reference IC in cost-sensitive designs. |
| VDR, DR GND | Digital output driver supply | VDR = 2.4–5 V; isolates output logic levels from core digital supply - permits direct interfacing to 2.5 V or 3.3 V FPGAs without level shifters. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 12-bit pipelines | Enables simultaneous sampling of two analog channels with matched gain (±0.05% FS) and offset (±0.02% FS) - essential for I/Q demodulation and beamforming. |
| Configurable output data format | Offset binary or 2's complement selectable via OF pin - simplifies sign handling in DSP firmware without requiring post-conversion bit manipulation. |
| Separate VDR supply for outputs | Decouples output logic voltage from core digital supply - eliminates level-shifter components and reduces BOM count in mixed-voltage systems. |
| Internal 2.0 V reference | Reduces external component count; tempco of 100 ppm/°C ensures <±0.2% full-scale drift over −40°C to +85°C - sufficient for non-calibrated instrumentation. |
| 64-lead TQFP with thermal pad | Standard surface-mount footprint compatible with automated assembly; θJ-A = 50°C/W enables passive thermal management in dense PCB layouts. |
Applications
| Ultrasound Imaging Front-End | Communications Receiver IF Digitization |
|---|---|
Use Scenario: Digitizing I/Q baseband or intermediate frequency signals from phased-array transducer receive chains. IC Role / Device Role / Timing Role: Dual-channel ADC providing synchronized sampling of echo return signals with matched channel latency and gain for coherent beamforming. Use Value: 10.9 ENOB and −80 dBc crosstalk ensure accurate amplitude/phase correlation between channels, directly improving image resolution and contrast. |
Use Scenario: Converting downconverted RF signals (e.g., xDSL, cable modem) into digital domain for DSP-based demodulation and equalization. IC Role / Device Role / Timing Role: High-speed IF sampling ADC operating at 40 MSPS with 100 MHz full-power bandwidth to preserve signal integrity up to second Nyquist zone. Use Value: 80 dB SFDR at 10 MHz prevents spurious mixing products from masking weak adjacent-channel signals in multi-carrier systems. |
| Sonar/Radar Signal Acquisition | Test & Measurement Instrumentation |
Use Scenario: Capturing pulsed echo returns in active sonar or pulse-Doppler radar systems requiring precise time-of-flight measurement. IC Role / Device Role / Timing Role: Low-latency (6-cycle) dual ADC enabling real-time range binning with sub-nanosecond timing alignment between channels. Use Value: 2 ps RMS aperture jitter minimizes time-domain smearing, preserving pulse edge fidelity critical for distance resolution. |
Use Scenario: High-accuracy waveform digitization in portable oscilloscopes and spectrum analyzers where dynamic range and linearity are paramount. IC Role / Device Role / Timing Role: Precision dual ADC delivering 12-bit resolution with ±0.7 LSB INL and no missing codes for calibrated measurement traceability. Use Value: Guaranteed monotonicity and <±1.0 LSB DNL ensure distortion-free representation of complex waveforms during FFT-based spectral analysis. |
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 |
|---|---|---|---|
| ADC12DL066CIVSX | Pin-compatible 12-bit, 65 MSPS variant with identical pinout and register map; higher speed increases power to 750 mW and reduces ENOB to 10.5 bits at 10 MHz. | Better suited for wider IF bandwidths (>30 MHz) but requires tighter layout for clock distribution due to higher fCLK. | Select when system clock rate exceeds 40 MHz and additional SNR margin is not required. |
| ADS5272IPFP | 12-bit, 40 MSPS dual ADC with serial LVDS outputs (not parallel), lower power (420 mW), and integrated PLL; lacks internal reference and requires external clock conditioning. | Optimized for space-constrained, low-noise PCBs using differential signaling; incompatible with parallel-bus FPGA interfaces without deserialization logic. | Select when board area and EMI are critical constraints and system supports LVDS data capture. |
Compared with ADC12D040CIVSX/NOPB, ADC12DL066CIVSX trades power efficiency for speed headroom, while ADS5272IPFP replaces parallel CMOS outputs with serial LVDS to reduce pin count and switching noise - neither offers drop-in replacement without interface or layout changes.
Availability
ADC12D040CIVSX/NOPB is available at Aetrix Electronics and suitable for ultrasound imaging systems, communications receiver front-ends, sonar signal processors, and test equipment requiring stable component supply with guaranteed long-term industrial temperature support.
Supply support for ADC12D040CIVSX/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 ADC12D040CIVSX/NOPB belongs to TI's precision high-speed ADC product line, designed specifically for dual-channel, medium-speed digitization in medical imaging, instrumentation, and broadband communications where channel matching and low power are critical.
FAQ
What is the maximum clock frequency supported by ADC12D040CIVSX/NOPB?
The ADC12D040CIVSX/NOPB guarantees full performance at 40 MSPS minimum clock frequency, with absolute maximum rating of 55 MHz. Operation above 40 MHz may degrade ENOB and SFDR; TI specifies timing parameters only up to 40 MHz in the datasheet. For reliable 12-bit accuracy, ADC12D040CIVSX/NOPB must be operated at exactly 40 MHz or lower in production systems.
Does ADC12D040CIVSX/NOPB require external reference circuitry?
No - ADC12D040CIVSX/NOPB includes an internal 2.0 V bandgap reference selectable via the INT/EXT REF pin. When this pin is held low, the internal reference is enabled and requires only 0.1 µF bypassing at VREF. External reference (1.0–2.4 V) is optional and used only when higher precision or custom voltage is needed. ADC12D040CIVSX/NOPB functions fully without external reference components.
How does the power-down mode affect ADC12D040CIVSX/NOPB latency and output state?
When PD pin is driven high, ADC12D040CIVSX/NOPB enters power-down mode within 500 ns, reducing total power to 75 mW. During this state, analog conversion halts, digital outputs go to high-impedance (regardless of OEA/OEB state), and internal clocks stop. Exit latency is also 500 ns; ADC12D040CIVSX/NOPB resumes normal operation and valid data output after six clock cycles post-exit.
Can ADC12D040CIVSX/NOPB interface directly with a 3.3 V FPGA I/O bank?
Yes - ADC12D040CIVSX/NOPB supports independent VDR supply (2.4–5 V). By connecting VDR to 3.3 V and bypassing to DR GND, its DA0–DA11 and DB0–DB11 outputs become 3.3 V–compatible with TTL/CMOS logic thresholds. This eliminates level shifters while maintaining full 12-bit timing margins; ADC12D040CIVSX/NOPB output drivers are explicitly characterized at VDR = 3.0 V in the datasheet.
What is the significance of the 6-clock-cycle latency in ADC12D040CIVSX/NOPB?
The 6-clock-cycle latency is fixed pipeline delay from CLK rising edge to valid data appearing on DA/DB buses. This deterministic value simplifies FPGA timing closure and enables precise synchronization of dual-channel samples. In ADC12D040CIVSX/NOPB, latency is independent of input frequency or reference choice - it is a hardwired architectural property critical for time-aligned I/Q processing and beamforming algorithms.
ADC12D040CIVSX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-TQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
ADC12D040CIVSX/NOPB FAQ
1.How can I place an order for ADC12D040CIVSX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC12D040CIVSX/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 ADC12D040CIVSX/NOPB reliable?
The price and inventory of ADC12D040CIVSX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC12D040CIVSX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC12D040CIVSX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC12D040CIVSX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC12D040CIVSX/NOPB?
ADC12D040CIVSX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC12D040CIVSX/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 ADC12D040CIVSX/NOPB?
For technical support, including ADC12D040CIVSX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC12D040CIVSX/NOPB requirements.
6.How does Aetrix verify that ADC12D040CIVSX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC12D040CIVSX/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 ADC12D040CIVSX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC12D040CIVSX/NOPB?
All ADC12D040CIVSX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC12D040CIVSX/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 ADC12D040CIVSX/NOPB part is unused and in its original packaging.
Return procedure for ADC12D040CIVSX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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