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Analog Devices Inc. LTC2143IUP-12#PBF
- Part No.:
- LTC2143IUP-12#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
LTC2143IUP-12#PBF.pdf
- Description:
- IC ADC 12BIT PIPELINED 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,179
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Product details
Overview
LTC2143IUP-12#PBF from Analog Devices (acquired Linear Technology) is a 12-bit, 80Msps dual-channel simultaneous-sampling analog-to-digital converter optimized for high-dynamic-range signal digitization in communications and instrumentation. It delivers 70.5dB SNR, 89dB SFDR, 750MHz full-power bandwidth, and operates from a single 1.8V supply with 109mW total power consumption.
For engineers reviewing the LTC2143IUP-12#PBF datasheet, LTC2143IUP-12#PBF pinout, LTC2143IUP-12#PBF application, or LTC2143IUP-12#PBF equivalent, key selection considerations include its 80Msps sampling rate, dual-channel synchronization, DDR LVDS/CMOS output flexibility, low jitter (0.10psRMS differential encode), and industrial temperature range (–40°C to +85°C).
Technical Context
The LTC2143IUP-12#PBF implements two independent 12-bit ADC cores with shared clocking and simultaneous sampling architecture, enabling precise phase-matched digitization of dual analog inputs. Its sample-and-hold features 750MHz full-power bandwidth and ultralow jitter (0.10psRMS), supporting undersampling of IF signals up to 140MHz while maintaining 70.5dB SNR at –1dBFS.
Digital interface options include full-rate CMOS, DDR CMOS, or DDR LVDS outputs, with configurable output voltage swing (1.2V–1.8V for CMOS) and on-chip 100Ω LVDS termination. Configuration is managed via SPI port (serial mode) or parallel logic inputs (parallel mode), supporting clock duty cycle stabilization and data randomization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes over temperature - guarantees monotonicity and full code coverage in precision measurement systems. |
| Sampling Rate | 80Msps - supports real-time digitization of wideband signals up to 40MHz Nyquist bandwidth per channel. |
| SNR | 70.5dB at 70MHz input, –1dBFS - enables high-fidelity capture of low-level signals in noisy RF environments. |
| SFDR | 89dB spurious-free dynamic range at 70MHz - suppresses harmonic distortion critical for multi-tone communication signals. |
| Power Dissipation | 109mW total at 80Msps (55mW per channel) - reduces thermal load and simplifies thermal management in dense PCB layouts. |
| Input Bandwidth | 750MHz full-power bandwidth - allows direct sampling of IF signals without external amplification or filtering. |
| Jitter | 0.10psRMS (differential encode) - minimizes aperture uncertainty, preserving SNR when undersampling high-frequency carriers. |
Pinout & Package
64-lead (9mm × 9mm) plastic QFN package with exposed thermal pad (Pin 65 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (1,16,17,64) | Analog supply input | 1.7V–1.9V analog rail; requires local 0.1μF ceramic bypassing - powers ADC cores and reference circuitry. |
| AIN1+/AIN1– (4,5) | Channel 1 differential analog input | Accepts 1VP-P to 2VP-P differential signal; common-mode biased by VCM1 - enables high-rejection front-end interfacing. |
| ENC+/ENC– (18,19) | Differential encode clock input | Starts conversion on rising/falling edges; supports PECL/LVDS/TTL/CMOS drive - provides flexible clock interface with optional duty cycle stabilization. |
| OVDD (42) | Digital output supply | 1.1V–1.9V supply for output drivers - sets CMOS swing or enables LVDS current-mode operation. |
| D1_11–D1_0 / D2_11–D2_0 (58–49, 38–27) | Parallel digital data outputs | 12-bit DDR CMOS or LVDS outputs per channel - supports high-speed interface to FPGAs or ASICs with minimal timing margin requirements. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous sampling dual ADC | Guarantees matched acquisition timing between channels - eliminates inter-channel skew for coherent I/Q or phased-array applications. |
| Configurable output interface | CMOS, DDR CMOS, or DDR LVDS modes selectable via SCK/PAR-SER - enables interoperability with diverse FPGA I/O standards without level-shifting. |
| Optional data randomizer | Reduces spectral correlation and spurious tones in repetitive input patterns - improves FFT-based signal analysis fidelity. |
| Low-power shutdown modes | 1mW sleep mode and 16mW nap mode - extends battery life in portable medical or test equipment during idle periods. |
| Serial SPI configuration | Full register control via 4-wire interface (CS/SCK/SDI/SDO) - enables runtime reconfiguration of output format, clock stabilization, and power modes. |
Applications
| Cellular Base Stations | Portable Medical Imaging |
|---|---|
Use Scenario: Digitizing dual-path I/Q signals from RF transceivers in LTE/5G macrocell and small-cell base stations. IC Role / Device Role / Timing Role: Simultaneous-sampling dual ADC capturing synchronized in-phase and quadrature baseband signals at 80Msps. Use Value: 89dB SFDR prevents intermodulation distortion from adjacent channels; 70.5dB SNR ensures accurate EVM measurement for high-order QAM constellations. | Use Scenario: High-fidelity analog signal acquisition in handheld ultrasound or Doppler imaging devices. IC Role / Device Role / Timing Role: Dual-channel ADC digitizing echo return signals from transducer arrays with matched time-of-flight resolution. Use Value: 750MHz input bandwidth supports wideband transducer frequencies; 109mW total power enables battery-operated operation without thermal throttling. |
| Multi-Channel Data Acquisition | Nondestructive Testing |
Use Scenario: Modular DAQ systems requiring synchronized sampling across multiple sensor inputs (e.g., vibration, strain, temperature). IC Role / Device Role / Timing Role: Dual ADC providing phase-coherent digitization of two analog channels with sub-picosecond jitter alignment. Use Value: Simultaneous sampling eliminates inter-channel phase error; ±0.3LSB INL ensures <0.1% gain matching for precision calibration across modules. | Use Scenario: Ultrasonic flaw detection systems analyzing material integrity using pulsed-echo time-domain reflectometry. IC Role / Device Role / Timing Role: High-speed ADC capturing transient return pulses with nanosecond-level timing resolution. Use Value: 0.10psRMS jitter preserves pulse edge fidelity; 70.5dB SNR enables detection of weak echoes buried in amplifier noise floor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9233BCPZ-80 | 12-bit, 80Msps, single-channel; no simultaneous sampling; 65dB SNR; 1.8V supply | Requires two devices for dual-channel operation; higher channel-to-channel skew; lower dynamic range | Select when cost-per-channel is prioritized over inter-channel coherence and SNR. |
| LTC2263IUH#PBF | 12-bit, 80Msps, single-channel; 70dB SNR; 1.8V supply; 100mW power; 64-QFN | No dual-channel integration; lacks simultaneous sampling and channel matching specs | Choose when board space permits discrete channel implementation and system-level synchronization is acceptable. |
Compared with AD9233BCPZ-80 and LTC2263IUH#PBF, the LTC2143IUP-12#PBF uniquely integrates dual simultaneous-sampling ADCs with 70.5dB SNR and 89dB SFDR in one 64-QFN package, eliminating inter-channel skew and reducing component count in coherent receiver architectures.
Availability
LTC2143IUP-12#PBF is available at Aetrix Electronics and suitable for cellular infrastructure, portable medical imaging, and multi-channel data acquisition systems requiring stable component supply, long-term lifecycle support, and industrial temperature grade (–40°C to +85°C).
Supply support for LTC2143IUP-12#PBF 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
Analog Devices, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2143IUP-12#PBF belongs to Linear Technology's ultra-low-jitter, dual-channel high-speed ADC family, designed specifically for demanding communications and instrumentation applications where phase coherence, dynamic range, and power efficiency are critical.
FAQ
What is the maximum sampling rate supported by the LTC2143IUP-12#PBF?
The LTC2143IUP-12#PBF supports a maximum sampling rate of 80Msps, as specified in its ordering part number suffix "-12" and confirmed in the DC and dynamic accuracy specifications tables. This rate applies across the full industrial temperature range (–40°C to +85°C) and is validated for both CMOS and LVDS output modes with sine-wave inputs at –1dBFS.
Does the LTC2143IUP-12#PBF support differential analog input?
Yes, the LTC2143IUP-12#PBF supports true differential analog input on both channels (AIN1+/AIN1– and AIN2+/AIN2–), with a selectable input range of 1VP-P to 2VP-P. The device includes dedicated VCM1 and VCM2 pins to bias the common-mode voltage at VDD/2, ensuring optimal linearity and rejection of common-mode noise.
What output interface options does the LTC2143IUP-12#PBF provide?
The LTC2143IUP-12#PBF offers three configurable digital output interfaces: full-rate CMOS, double-data-rate (DDR) CMOS, and DDR LVDS. Output mode selection is controlled via the PAR/SER and SCK pins. OVDD voltage determines CMOS swing (1.2V–1.8V) or enables LVDS current-mode operation with internal 100Ω termination.
What is the operating temperature range of the LTC2143IUP-12#PBF?
The LTC2143IUP-12#PBF is rated for an industrial operating temperature range of –40°C to +85°C, indicated by the "I" grade in its part number. All key specifications-including SNR, SFDR, INL, DNL, and power consumption-are guaranteed across this full range, making it suitable for harsh-environment deployments.
How is the LTC2143IUP-12#PBF configured for operation?
The LTC2143IUP-12#PBF is configured via a 4-wire SPI interface (CS/SCK/SDI/SDO) in serial programming mode (PAR/SER = GND), allowing full control of output format, clock duty cycle stabilizer, data randomizer, and power modes. In parallel mode (PAR/SER = VDD), limited configuration is available through logic-level inputs on CS, SCK, and SDI.
LTC2143IUP-12#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 80M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel, 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:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-QFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2143IUP-12#PBF FAQ
1.How can I place an order for LTC2143IUP-12#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2143IUP-12#PBF 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 LTC2143IUP-12#PBF reliable?
The price and inventory of LTC2143IUP-12#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2143IUP-12#PBF is usually 5 days.
3.What payment methods are accepted for LTC2143IUP-12#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2143IUP-12#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2143IUP-12#PBF?
LTC2143IUP-12#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2143IUP-12#PBF 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 LTC2143IUP-12#PBF?
For technical support, including LTC2143IUP-12#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2143IUP-12#PBF requirements.
6.How does Aetrix verify that LTC2143IUP-12#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2143IUP-12#PBF 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 LTC2143IUP-12#PBF meets industry standards.
7.What is the process for return or replacement of LTC2143IUP-12#PBF?
All LTC2143IUP-12#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2143IUP-12#PBF, 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 LTC2143IUP-12#PBF part is unused and in its original packaging.
Return procedure for LTC2143IUP-12#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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