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Analog Devices Inc. LTC2262IUJ-14#PBF
- Part No.:
- LTC2262IUJ-14#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
LTC2262IUJ-14#PBF.pdf
- Description:
- IC ADC 14BIT PIPELINED 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,771
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Product details
Overview
LTC2262IUJ-14#PBF from Analog Devices (formerly Linear Technology) is a 14-bit, 150Msps ultralow-power analog-to-digital converter optimized for high-frequency signal digitization in communications infrastructure. It delivers 72.8dB SNR and 88dB SFDR at 70MHz input, operates from a single 1.8V supply, consumes only 149mW, and supports CMOS/DDR-CMOS/DDR-LVDS outputs - enabling direct interface with FPGAs in cellular base stations and software-defined radios.
For engineers reviewing the LTC2262IUJ-14#PBF datasheet, LTC2262IUJ-14#PBF pinout, LTC2262IUJ-14#PBF application, or LTC2262IUJ-14#PBF equivalent, this page provides verified specifications, validated QFN-40 pin functions across all output modes, real-world dynamic performance data (SNR/SFDR vs frequency), confirmed power consumption at 150Msps, and precise thermal and timing characteristics for IF undersampling designs.
Technical Context
The LTC2262IUJ-14#PBF employs a pipelined ADC architecture with integrated sample-and-hold, correction logic, and programmable output drivers. Its 0.17psRMS aperture jitter enables high-fidelity undersampling of IF signals up to 140MHz while maintaining 72.5dB SNR. The core supports three digital output configurations - full-rate CMOS, DDR-CMOS, and DDR-LVDS - each with distinct pin mappings and timing relationships to CLKOUT±.
Configuration is managed via a serial SPI port (CS/SCK/SDI/SDO), allowing runtime selection of input range (1–2VP-P), clock duty cycle stabilization, data randomization, and power modes (Nap: 9mW, Sleep: 0.5mW). Input common-mode bias is provided by VCM (nominally VDD/2), and reference selection is controlled by SENSE voltage (internal ±1V, ±0.5V, or external 0.625–1.3V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with no missing codes over –40°C to +85°C - guarantees monotonicity and full code coverage in industrial temperature operation. |
| Sampling Rate | 150Msps maximum - supports Nyquist sampling of signals up to 75MHz or undersampling of IF bands up to 140MHz. |
| SNR @ 70MHz | 72.8dB (typical) - enables >12 effective bits for high-dynamic-range RF receiver chains. |
| SFDR @ 70MHz | 88dB (typical, 2nd/3rd harmonic) - suppresses spurious content critical for multi-carrier cellular base station applications. |
| Power Consumption | 149mW at 150Msps, 1.8V - reduces thermal load and simplifies PCB layout in dense RF front-end modules. |
| Input Bandwidth | 800MHz full-power bandwidth - preserves signal integrity for wideband radar and broadband instrumentation inputs. |
| Aperture Jitter | 0.17psRMS - limits sampling uncertainty, enabling clean 14-bit performance at IF frequencies beyond 100MHz. |
Pinout & Package
Package: 40-lead (6mm × 6mm) plastic QFN (UJ package) with exposed pad (Pin 41) soldered to PCB ground for thermal and electrical integrity. θJA = 32°C/W, TJMAX = 150°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+, AIN– | Differential analog input pair | Accepts 1–2VP-P differential signal centered at VCM; requires 180° phase alignment for optimal linearity. |
| ENC+, ENC– | Differential encode clock inputs | Trigger conversion on rising/falling edges; support PECL/LVDS/TTL/CMOS drive; optional duty cycle stabilizer enabled via CS. |
| VDD (Pins 9, 10, 40) | Analog supply | 1.8V ±0.1V single supply powering ADC core and S/H; bypassed locally with 0.1µF ceramic capacitors. |
| OVDD (Pin 26) | Digital output supply | Configurable 1.1–1.9V supply setting CMOS output swing or LVDS current mode (1.75mA or 3.5mA). |
| D0–D13 / D0_1–D12_13 / D0_1±–D12_13± | Data output terminals | Mode-dependent mapping: full-rate CMOS (14 pins), DDR-CMOS (7 pins), or DDR-LVDS (7 differential pairs); MSB is D13. |
| CLKOUT+, CLKOUT– | Output clock pair | Source-synchronous clock aligned to data transitions; phase delay programmable via SPI for timing margin optimization. |
| OF / OF+, OF– | Overflow/underflow flag | Indicates saturation event; single-ended (Pin 36) in CMOS modes, differential (Pins 35/36) in LVDS mode. |
| SENSE (Pin 39) | Reference programming input | Selects input range: tied to VDD → ±1V, GND → ±0.5V, or 0.625–1.3V external → ±0.8×VSENSE. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-jitter sampling | 0.17psRMS aperture jitter enables clean undersampling of 140MHz IF signals without degradation in SNR or SFDR. |
| Flexible digital interface | Three selectable output modes - full-rate CMOS (14 pins), DDR-CMOS (7 pins), DDR-LVDS (7 pairs) - reduce FPGA I/O count and system EMI. |
| Programmable power states | Nap mode (9mW) and Sleep mode (0.5mW) allow dynamic power scaling during idle periods in battery-powered or thermally constrained systems. |
| Integrated reference control | Internal 1.25V reference with ±25ppm/°C drift; external reference supported via SENSE pin for precision metrology applications. |
| Robust input architecture | 800MHz full-power bandwidth with 80dB CMRR and 185µA input common-mode current - maintains accuracy with wideband transformer-coupled front ends. |
Applications
| Cellular Base Stations | Software Defined Radios |
|---|---|
Use Scenario: Digitizing multi-carrier LTE/5G IF signals at 70–140MHz within remote radio heads. IC Role / Device Role / Timing Role: High-speed ADC capturing wide instantaneous bandwidth with minimal spurious content. Use Value: 88dB SFDR prevents intermodulation distortion between adjacent carriers; 149mW power enables dense RF module integration. |
Use Scenario: Reconfigurable RF transceiver supporting multiple waveforms (FM, DAB, DRM) across 1–300MHz. IC Role / Device Role / Timing Role: Wideband digitizer with programmable input range and output interface for FPGA-based demodulation. Use Value: Selectable 1–2VP-P input range adapts to varying antenna signal levels; DDR-LVDS output minimizes noise coupling in mixed-signal PCBs. |
| Portable Medical Imaging | Nondestructive Testing |
Use Scenario: Ultrasound beamformer digitizing echo returns from 5–15MHz transducers in handheld scanners. IC Role / Device Role / Timing Role: Low-noise, low-power ADC enabling battery-operated portable imaging with high image resolution. Use Value: 72.8dB SNR preserves weak echo fidelity; 0.17psRMS jitter ensures accurate time-of-flight measurement for depth resolution. |
Use Scenario: Ultrasonic flaw detection system digitizing return pulses from metal/air interfaces at 1–10MHz. IC Role / Device Role / Timing Role: High-linearity ADC capturing transient reflections with minimal harmonic distortion. Use Value: ±1LSB INL and ±0.3LSB DNL ensure accurate amplitude quantization of defect signatures; 800MHz bandwidth captures fast rise-time pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9246BCPZ-150 | 14-bit, 150Msps; 73.5dB SNR @ 70MHz; 250mW power; requires dual 1.8V/3.3V supplies. | Higher power and stricter supply sequencing; better SNR but less suitable for thermally constrained portable designs. | Choose AD9246BCPZ-150 when absolute SNR priority outweighs power budget constraints and dual-supply infrastructure exists. |
| LTC2261IUJ-14#PBF | 14-bit, 125Msps; identical pinout, SPI interface, and feature set; 129mW power; 72.5dB SNR @ 70MHz. | Lower sampling rate limits IF bandwidth to ~62MHz; suitable where 125Msps suffices and lower power is critical. | Choose LTC2261IUJ-14#PBF for cost-sensitive or lower-bandwidth applications where pin compatibility and reduced power (129mW) are advantageous. |
Compared with AD9246BCPZ-150, the LTC2262IUJ-14#PBF offers 101mW lower power and single-supply simplicity at a 0.7dB SNR trade-off; versus LTC2261IUJ-14#PBF, it adds 25Msps headroom for wider IF capture while increasing power by 20mW - making it optimal for 150Msps industrial and communications systems requiring thermal efficiency.
Availability
LTC2262IUJ-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, extended temperature operation (–40°C to +85°C), and long-term obsolescence management.
Supply support for LTC2262IUJ-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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2262IUJ-14#PBF belongs to ADI's high-speed precision ADC product line, designed specifically for demanding communications and instrumentation applications requiring ultralow power, high dynamic range, and flexible digital interfacing.
FAQ
What is the operating temperature range for the LTC2262IUJ-14#PBF?
The LTC2262IUJ-14#PBF is rated for industrial temperature operation from –40°C to +85°C, as confirmed by its "I" grade designation and full-specification validation across this range in the datasheet's converter, analog input, and dynamic accuracy sections.
Does the LTC2262IUJ-14#PBF support external reference configuration?
Yes, the LTC2262IUJ-14#PBF supports external reference configuration via the SENSE pin: applying 0.625V to 1.3V to SENSE selects an input range of ±0.8×VSENSE, enabling precise scaling for metrology-grade applications beyond the internal ±0.5V or ±1V ranges.
How does the clock duty cycle stabilizer function in the LTC2262IUJ-14#PBF?
The clock duty cycle stabilizer in the LTC2262IUJ-14#PBF is enabled by driving CS high and operates independently of encode input type; it corrects duty cycle errors in ENC+/ENC– to maintain optimal sampling window symmetry, preserving SNR and SFDR at full 150Msps rate.
What are the valid digital output supply (OVDD) voltages for the LTC2262IUJ-14#PBF?
The LTC2262IUJ-14#PBF supports OVDD from 1.1V to 1.9V in CMOS modes (setting output swing) and 1.7V to 1.9V in LVDS mode (setting output current level); values outside these ranges violate Absolute Maximum Ratings and risk functional failure.
Can the LTC2262IUJ-14#PBF be used with single-ended encode inputs?
Yes, the LTC2262IUJ-14#PBF supports single-ended encode: tie ENC– to GND and drive ENC+ with a 1.8V square wave, reducing power consumption by 10mW versus differential mode while maintaining full 150Msps operation and specified timing margins.
LTC2262IUJ-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):
- 150M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel, 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:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 40-QFN (6x6)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2262IUJ-14#PBF FAQ
1.How can I place an order for LTC2262IUJ-14#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2262IUJ-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 LTC2262IUJ-14#PBF reliable?
The price and inventory of LTC2262IUJ-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 LTC2262IUJ-14#PBF is usually 5 days.
3.What payment methods are accepted for LTC2262IUJ-14#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2262IUJ-14#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2262IUJ-14#PBF?
LTC2262IUJ-14#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2262IUJ-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 LTC2262IUJ-14#PBF?
For technical support, including LTC2262IUJ-14#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2262IUJ-14#PBF requirements.
6.How does Aetrix verify that LTC2262IUJ-14#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2262IUJ-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 LTC2262IUJ-14#PBF meets industry standards.
7.What is the process for return or replacement of LTC2262IUJ-14#PBF?
All LTC2262IUJ-14#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2262IUJ-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 LTC2262IUJ-14#PBF part is unused and in its original packaging.
Return procedure for LTC2262IUJ-14#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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