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Analog Devices Inc. LTC2264IUJ-14#PBF
- Part No.:
- LTC2264IUJ-14#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
LTC2264IUJ-14#PBF.pdf
- Description:
- IC ADC 14BIT PIPELINED 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,935
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Product details
Overview
LTC2264IUJ-14#PBF from Analog Devices (formerly Linear Technology) is a 14-bit, dual-channel, simultaneous-sampling analog-to-digital converter with 40Msps maximum sampling rate, 73.5dB SNR at 70MHz input, and 90dB SFDR. It operates from a single 1.8V supply, features serial LVDS outputs (1- or 2-lane), and targets high-dynamic-range IF digitization in communications infrastructure.
For engineers reviewing the LTC2264IUJ-14#PBF datasheet, LTC2264IUJ-14#PBF pinout, LTC2264IUJ-14#PBF application, or LTC2264IUJ-14#PBF equivalent, this page delivers verified specifications, validated pin functions, temperature-rated performance (–40°C to +85°C), and direct alternatives for multichannel data acquisition and SDR front-end design.
Technical Context
The LTC2264IUJ-14#PBF integrates two independent 14-bit ADC cores with shared sample-and-hold and internal PLL clocking. Its 800MHz full-power bandwidth supports undersampling of IF signals up to 140MHz, while ultralow 0.15psRMS aperture jitter preserves SNR in demanding RF applications.
Digital interface uses programmable LVDS serializers with selectable 1.75mA/3.5mA output current and optional on-chip 100Ω termination. Configuration is supported via SPI port (serial mode) or parallel logic inputs (parallel mode), enabling flexible system integration without external FPGA configuration overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with no missing codes over temperature - guarantees monotonicity and full code coverage in precision measurement systems. |
| Sampling Rate | 40Msps maximum - enables real-time capture of wideband signals up to 20MHz Nyquist bandwidth per channel. |
| SNR | 73.5dBFS at 70MHz input, –1dBFS - delivers >12 effective bits for high-fidelity signal reconstruction in base station receivers. |
| SFDR | 90dBFS (2nd/3rd harmonic) at 70MHz - suppresses spurious content critical for adjacent-channel interference rejection in cellular standards. |
| Power Consumption | 113mW total at 40Msps, 2-lane LVDS - enables thermally constrained portable medical imaging and compact SDR platforms. |
| Analog Supply | Single 1.8V (1.7V–1.9V) - simplifies power delivery and reduces noise coupling versus multi-rail ADCs. |
| Input Bandwidth | 800MHz full-power - supports direct sampling of L-band and S-band IF signals without external amplification or filtering. |
Pinout & Package
Package: 40-lead (6mm × 6mm) plastic QFN with exposed pad (Pin 41 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1+, AIN1– | Channel 1 differential analog input | Accepts 1VP-P to 2VP-P input range; common-mode bias provided by VCM1 for matched AC-coupled signal conditioning. |
| ENC+, ENC– | Differential encode clock input | Supports sine wave, PECL, LVDS, TTL, or CMOS drive; internal duty cycle stabilizer ensures timing accuracy across 20%–80% duty cycles. |
| OUT1A+/–, OUT1B+/– | LVDS serial data outputs (Channel 1) | In 1-lane mode, only OUT1A+/– active; 2-lane mode splits 14-bit word across two pairs - reduces trace count and EMI in dense layouts. |
| FR+, FR– | Frame start output | Indicates start of each conversion frame; period equals twice the encode clock period in 2-lane mode - synchronizes downstream FPGA capture logic. |
| DCO+, DCO– | Data clock output | Source-synchronous clock aligned to serialized data edges; eliminates setup/hold timing constraints on receiving logic. |
| PAR/SER | Programming mode select | Hardwired to GND for SPI control or VDD for parallel logic configuration - determines whether CS/SCK/SDI function as serial interface or mode-select pins. |
| SENSE | Reference programming input | Configures input range: VDD → ±1V, GND → ±0.5V, or external 0.625V–1.3V → ±0.8×VSENSE - enables precise gain matching in multichannel systems. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous dual-channel sampling | Eliminates inter-channel skew for coherent beamforming and I/Q demodulation in phased-array receivers. |
| Ultralow 0.15psRMS jitter | Enables clean undersampling of 70MHz+ IF signals without SNR degradation - critical for LTE and 5G NR receiver sensitivity. |
| Serial LVDS interface (1-/2-lane) | Reduces digital I/O count by >50% vs parallel interfaces - saves FPGA pins and routing resources in space-constrained designs. |
| Internal clock duty cycle stabilizer | Allows use of low-cost crystal oscillators or clock generators with poor duty cycle - avoids need for external duty cycle correction circuitry. |
| Shutdown and Nap modes | Reduces power to 1mW (Sleep) or 60mW (Nap) - extends battery life in portable test equipment and handheld spectrum analyzers. |
Applications
| Cellular Base Stations | Software Defined Radios |
|---|---|
Use Scenario: Digitizing dual-path IF signals (e.g., 70MHz/75MHz 2-tone) in macrocell remote radio heads. IC Role / Device Role / Timing Role: Dual-channel ADC core providing synchronized 14-bit samples at 40Msps with <0.2ps jitter for high-SFDR signal analysis. Use Value: 90dB SFDR enables detection of weak adjacent-channel signals in crowded spectral environments per 3GPP requirements. | Use Scenario: Reconfigurable RF front-end in military comms transceivers supporting multiple waveform standards. IC Role / Device Role / Timing Role: Simultaneous-sampling ADC with programmable input range and LVDS serialization for FPGA-based digital downconversion. Use Value: Single-supply 1.8V operation and low 113mW power allow integration into SWaP-constrained airborne platforms. |
| Portable Medical Imaging | Multichannel Data Acquisition |
Use Scenario: Ultrasound beamformer digitizing echo returns from 128+ transducer elements with time-aligned sampling. IC Role / Device Role / Timing Role: Dual-channel ADC delivering matched gain/offset (±0.2% FS gain match, ±3mV offset match) across channels for coherent signal processing. Use Value: 73.5dB SNR at 30MHz input preserves tissue contrast resolution in B-mode imaging without oversampling penalties. | Use Scenario: High-precision vibration monitoring system capturing synchronized analog inputs from accelerometers and strain gauges. IC Role / Device Role / Timing Role: Simultaneous-sampling ADC with ±1LSB INL and no missing codes ensuring accurate amplitude fidelity over temperature. Use Value: 800MHz input bandwidth supports anti-aliasing filter design with relaxed roll-off requirements, reducing analog component count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 14-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9250BCPZ-40 | 40Msps dual 14-bit ADC with JESD204B interface; higher power (240mW); requires 2.5V/1.8V supplies. | Targets high-speed backplane connectivity where FPGA JESD204B IP is available; less suitable for cost-sensitive or low-power designs. | Select AD9250BCPZ-40 when JESD204B lane reduction and deterministic latency outweigh LVDS simplicity and lower power. |
| LTC2263IUJ-14#PBF | Same pinout and architecture but 25Msps max; lower power (94mW); identical 1.8V supply and LVDS interface. | Used where Nyquist bandwidth ≤12.5MHz suffices (e.g., narrowband IoT gateways), trading speed for thermal headroom. | Select LTC2263IUJ-14#PBF for battery-powered edge sensors requiring identical footprint and firmware compatibility at reduced sample rate. |
Compared with AD9250BCPZ-40 and LTC2263IUJ-14#PBF, the LTC2264IUJ-14#PBF uniquely balances 40Msps performance, 113mW power, single 1.8V supply, and LVDS simplicity - making it optimal for cost-sensitive, thermally constrained SDR and instrumentation designs requiring proven reliability over –40°C to +85°C.
Availability
LTC2264IUJ-14#PBF is available at Aetrix Electronics and suitable for cellular base stations, software defined radios, and portable medical imaging systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2264IUJ-14#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and DSP technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2264IUJ-14#PBF belongs to Linear's high-speed ADC product line, engineered specifically for demanding communications and instrumentation applications requiring simultaneous sampling, low jitter, and robust LVDS interfacing in compact QFN packages.
FAQ
What is the maximum sampling rate supported by the LTC2264IUJ-14#PBF?
The LTC2264IUJ-14#PBF supports a maximum sampling rate of 40Msps. This is confirmed in the datasheet's Timing Characteristics table under fS parameter for LTC2264-14. The device maintains specified AC performance-including 73.5dB SNR and 90dB SFDR-at this rate with 2-lane LVDS output mode and 1.8V supply. Exceeding 40Msps is not guaranteed and may degrade linearity or dynamic range.
Does the LTC2264IUJ-14#PBF support single-ended analog inputs?
No, the LTC2264IUJ-14#PBF is designed exclusively for differential analog inputs. Pins AIN1+/– and AIN2+/– are fully differential pairs with specified common-mode rejection (80dB CMRR) and require matched PCB layout. Single-ended drive is not supported per the Absolute Maximum Ratings and Input Specifications sections, which define VIN(CM) and differential input voltage ranges only.
What is the operating temperature range for the LTC2264IUJ-14#PBF?
The LTC2264IUJ-14#PBF is rated for operation from –40°C to +85°C, as indicated by the "I" grade in its part number and confirmed in the Absolute Maximum Ratings table. This industrial temperature range is validated across all key specifications including SNR, SFDR, INL, and power consumption, making it suitable for outdoor base stations and ruggedized test equipment.
Can the LTC2264IUJ-14#PBF be configured for 12-bit output mode?
No, the LTC2264IUJ-14#PBF is a fixed 14-bit resolution ADC with no internal truncation or LSB masking capability. The datasheet specifies "14-bit with no missing codes" as a guaranteed characteristic across temperature. While serialization formats include 12-bit, 14-bit, and 16-bit modes, these refer only to data packing on LVDS lanes-not resolution reduction. The full 14-bit word is always present.
How does the SENSE pin affect input range on the LTC2264IUJ-14#PBF?
The SENSE pin on the LTC2264IUJ-14#PBF directly configures the full-scale input range: tying to VDD selects ±1V, tying to GND selects ±0.5V, and applying an external voltage between 0.625V and 1.3V selects ±0.8×VSENSE. This is explicitly documented in the Pin Functions section and validated in the Analog Input table, where VIN range is listed as 1VP-P to 2VP-P depending on SENSE state.
LTC2264IUJ-14#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 40M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial
- 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:
- 40-QFN (6x6)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2264IUJ-14#PBF FAQ
1.How can I place an order for LTC2264IUJ-14#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2264IUJ-14#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 LTC2264IUJ-14#PBF reliable?
The price and inventory of LTC2264IUJ-14#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2264IUJ-14#PBF is usually 5 days.
3.What payment methods are accepted for LTC2264IUJ-14#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2264IUJ-14#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2264IUJ-14#PBF?
LTC2264IUJ-14#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2264IUJ-14#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 LTC2264IUJ-14#PBF?
For technical support, including LTC2264IUJ-14#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2264IUJ-14#PBF requirements.
6.How does Aetrix verify that LTC2264IUJ-14#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2264IUJ-14#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 LTC2264IUJ-14#PBF meets industry standards.
7.What is the process for return or replacement of LTC2264IUJ-14#PBF?
All LTC2264IUJ-14#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2264IUJ-14#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 LTC2264IUJ-14#PBF part is unused and in its original packaging.
Return procedure for LTC2264IUJ-14#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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