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Analog Devices Inc. LTC2262IUJ-12#PBF
- Part No.:
- LTC2262IUJ-12#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
LTC2262IUJ-12#PBF.pdf
- Description:
- IC ADC 12BIT PIPELINED 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,790
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Product details
Overview
LTC2262IUJ-12#PBF from Analog Devices (formerly Linear Technology) is a 12-bit, 150Msps ultralow-power analog-to-digital converter optimized for high-frequency signal digitization in communications infrastructure. It delivers 70.5dB SNR and 88dB SFDR at 70MHz input, operates from a single 1.8V supply, consumes only 146mW, and supports CMOS/DDR-CMOS/DDR-LVDS digital outputs - enabling use in cellular base stations and portable medical imaging systems.
For engineers reviewing the LTC2262IUJ-12#PBF datasheet, LTC2262IUJ-12#PBF pinout, LTC2262IUJ-12#PBF application, or LTC2262IUJ-12#PBF equivalent, key selection considerations include its 800MHz full-power bandwidth, ±0.3LSB INL, 0.17psRMS jitter, configurable input range (1–2VP-P), and SPI-configurable clock duty cycle stabilizer and output randomizer.
Technical Context
The LTC2262IUJ-12#PBF implements a 12-bit pipelined ADC architecture with on-chip correction logic, differential sample-and-hold with 800MHz bandwidth, and selectable internal/external reference modes. Its ENC+/ENC– interface accepts differential or single-ended clocks up to 150MHz, and jitter performance (0.17psRMS) enables undersampling of IF signals without degradation in noise floor.
Digital output flexibility includes full-rate CMOS (12 pins), DDR-CMOS (6 pins), or DDR-LVDS (6 differential pairs), each with programmable timing skew and pipeline latency (5.0–5.5 cycles). The SPI-controlled mode registers configure output format, randomizer, duty cycle stabilizer, and power modes (Nap: 9mW, Sleep: 0.5mW).
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 acquisition. |
| Sampling Rate | 150Msps maximum - supports real-time digitization of wideband RF/IF signals up to Nyquist (75MHz). |
| SNR / SFDR | 70.5dB SNR and 88dB SFDR at 70MHz - enables high-fidelity signal reconstruction in SDR and medical ultrasound front ends. |
| Power Consumption | 146mW at 150Msps with 1.8V supply - reduces thermal load and simplifies thermal management in dense RF modules. |
| Analog Input BW | 800MHz full-power bandwidth - preserves signal integrity for fast-rising transients and multi-octave RF inputs. |
| Jitter Performance | 0.17psRMS aperture jitter - limits sampling uncertainty to <0.02% ENOB loss at 140MHz input, critical for undersampling. |
| INL / DNL | ±0.3LSB typical INL and ±0.1LSB typical DNL - ensures accurate amplitude linearity for measurement and calibration-critical applications. |
Pinout & Package
Package: 40-lead (6mm × 6mm) plastic QFN (UJ package) with exposed pad (Pin 41 = GND, must be soldered to PCB). Thermal resistance θJA = 32°C/W; operating temperature range: –40°C to +85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+, AIN– | Differential analog input pair | Accepts 1–2VP-P differential signal centered at VCM (≈0.9V); 800MHz bandwidth enables direct RF sampling. |
| ENC+, ENC– | Differential encode clock inputs | Trigger conversion on rising/falling edges; support PECL/LVDS/TTL/CMOS; optional duty cycle stabilizer improves timing margin. |
| VDD (Pins 9,10,40) | Analog supply | Single 1.8V supply (1.7–1.9V) powers core ADC and reference; bypassing required with 0.1µF ceramics per pin. |
| OVDD (Pin 26) | Digital output supply | Configurable 1.2–1.9V supply sets CMOS output swing or enables LVDS current modes (1.75mA/3.5mA). |
| D0–D11 / D0_1–D10_11 / D0_1±–D10_11± | Data output terminals | Selectable output mode: 12-pin CMOS, 6-pin DDR-CMOS, or 6 differential DDR-LVDS - reduces PCB routing density and EMI. |
| CLKOUT+, CLKOUT– | Output clock pair | Source-synchronous clock aligned to data edges; phase delay programmable via SPI to compensate board trace skew. |
| PAR/SER, CS, SCK, SDI, SDO | SPI configuration interface | Serial programming mode (PAR/SER = GND) configures randomizer, nap/sleep, output format, and reference selection. |
| SENSE (Pin 39) | Reference programming input | Set input range: tied to VDD → ±1V; grounded → ±0.5V; 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 added noise floor degradation. |
| Multi-mode digital outputs | Hardware-selectable CMOS / DDR-CMOS / DDR-LVDS reduces I/O count by 50% (vs full-rate CMOS) and lowers system EMI. |
| Configurable power states | Nap mode (9mW) and Sleep mode (0.5mW) allow rapid entry/exit for burst-mode operation in battery-powered instruments. |
| Programmable input range | 1–2VP-P range selection via SENSE pin simplifies front-end gain staging across diverse signal sources (RF, ultrasound, NDT). |
| On-chip clock duty cycle stabilizer | Compensates for asymmetric clock waveforms - maintains timing margin at full 150Msps without external retiming. |
| SPI-configurable data randomizer | Reduces spectral correlation and spurious tones in repetitive input patterns - critical for radar and spectral monitoring. |
Applications
| Cellular Base Stations | Software Defined Radios |
|---|---|
Use Scenario: Digitizing 70–140MHz IF signals in macrocell and small-cell LTE/5G transceivers. IC Role / Device Role / Timing Role: High-speed ADC front end with 800MHz analog bandwidth and 0.17psRMS jitter for clean undersampling. Use Value: Eliminates need for external downconversion stages, reducing BOM cost and signal path loss while preserving SFDR >82dB. |
Use Scenario: Wideband spectrum sensing and agile waveform capture in military/commercial SDR platforms. IC Role / Device Role / Timing Role: Reconfigurable 12-bit ADC with SPI-controlled output mode, randomizer, and Nap mode for adaptive processing. Use Value: Enables real-time switching between CMOS (debug), DDR-CMOS (low pin count), and DDR-LVDS (low EMI) without hardware change. |
| Portable Medical Imaging | Nondestructive Testing |
Use Scenario: Beamforming digitization in handheld ultrasound systems requiring low power and high SNR. IC Role / Device Role / Timing Role: Low-noise, 146mW ADC with 70.5dB SNR at 30MHz input for echo signal fidelity. Use Value: Extends battery life per charge while maintaining diagnostic image resolution through superior dynamic range. |
Use Scenario: High-speed transient capture in ultrasonic testing (UT) and eddy current inspection equipment. IC Role / Device Role / Timing Role: 150Msps digitizer with ±0.3LSB INL for precise amplitude measurement of flaw reflections. Use Value: Improves detection sensitivity for sub-millimeter defects by minimizing integral nonlinearity-induced distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9230-150EBZ | 12-bit, 150Msps; requires dual 1.8V/3.3V supplies; no integrated duty cycle stabilizer; 72dB SNR @ 70MHz. | Higher power (320mW); less suitable for single-supply portable designs; lacks on-chip clock conditioning. | Choose when legacy 3.3V digital interface compatibility is required and jitter budget allows >0.3psRMS. |
| ADS52J90IRGCT | 10-bit, 160Msps; JESD204B serial output; 1.8V/3.3V supplies; 65dB SNR @ 70MHz; 295mW power. | Lower resolution and SNR; serial interface reduces pin count but adds FPGA/JESD complexity. | Prefer for high-channel-count systems where JESD204B backplane integration outweighs SNR trade-off. |
Compared with AD9230-150EBZ and ADS52J90IRGCT, the LTC2262IUJ-12#PBF offers superior SNR (70.5dB vs ≤72dB), lower power (146mW vs ≥295mW), single 1.8V operation, and integrated clock stabilization - making it optimal for space-constrained, battery-aware, or jitter-sensitive RF digitization.
Availability
LTC2262IUJ-12#PBF is available at Aetrix Electronics and suitable for cellular infrastructure, portable medical imaging, and nondestructive testing applications requiring stable component supply, extended temperature support (–40°C to +85°C), and long-term production continuity.
Supply support for LTC2262IUJ-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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing ICs for precision instrumentation, communications, and industrial applications.
The LTC2262IUJ-12#PBF belongs to Linear's high-speed ADC product line, engineered specifically for demanding RF/IF digitization in communications and test equipment where ultralow power, high SNR, and flexible output interfaces are essential.
FAQ
What is the operating temperature range for the LTC2262IUJ-12#PBF?
The LTC2262IUJ-12#PBF is rated for industrial operation from –40°C to +85°C. This is confirmed by the "I" grade designation in the part number and specified in the Absolute Maximum Ratings table. It supports reliable performance in base station outdoor units, portable ultrasound devices, and factory-floor NDT equipment without derating.
Does the LTC2262IUJ-12#PBF support differential analog input drive?
Yes, the LTC2262IUJ-12#PBF is designed for differential analog input operation using AIN+ and AIN– pins. The datasheet specifies 800MHz full-power bandwidth, ±0.3LSB INL, and 70.5dB SNR under differential drive conditions with 1–2VP-P range and VCM bias. Single-ended drive is not recommended due to degraded CMRR and distortion.
Can the LTC2262IUJ-12#PBF operate with a 1.2V OVDD supply for CMOS outputs?
Yes, the LTC2262IUJ-12#PBF supports OVDD from 1.1V to 1.9V. At OVDD = 1.2V, CMOS outputs deliver VOH ≥ 1.185V and VOL ≤ 0.010V with ±500µA load - enabling direct interfacing with 1.2V logic families while reducing switching power by ~45% versus 1.8V operation.
How does the clock duty cycle stabilizer function in the LTC2262IUJ-12#PBF?
The LTC2262IUJ-12#PBF's clock duty cycle stabilizer corrects asymmetric ENC+/ENC– waveforms internally, ensuring consistent setup/hold margins at 150Msps. Enabled via CS pin high in parallel mode, it eliminates need for external clock retiming ICs - verified to maintain 70.5dB SNR even with 30%–70% input duty cycle.
Is the LTC2262IUJ-12#PBF pin-compatible with other members of the LTC2262 family?
Yes, the LTC2262IUJ-12#PBF is pin-compatible with the 14-bit LTC2264IUJ-14#PBF and 12-bit LTC2261IUJ-12#PBF in the same UJ QFN-40 package. Shared pinout enables drop-in upgrades or downgrades based on resolution/power trade-offs without PCB redesign - confirmed in the "Pin Compatible" feature statement and identical pin configurations across datasheet pages.
LTC2262IUJ-12#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:
- 12
- 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-12#PBF FAQ
1.How can I place an order for LTC2262IUJ-12#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2262IUJ-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 LTC2262IUJ-12#PBF reliable?
The price and inventory of LTC2262IUJ-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 LTC2262IUJ-12#PBF is usually 5 days.
3.What payment methods are accepted for LTC2262IUJ-12#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2262IUJ-12#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2262IUJ-12#PBF?
LTC2262IUJ-12#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2262IUJ-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 LTC2262IUJ-12#PBF?
For technical support, including LTC2262IUJ-12#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2262IUJ-12#PBF requirements.
6.How does Aetrix verify that LTC2262IUJ-12#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2262IUJ-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 LTC2262IUJ-12#PBF meets industry standards.
7.What is the process for return or replacement of LTC2262IUJ-12#PBF?
All LTC2262IUJ-12#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2262IUJ-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 LTC2262IUJ-12#PBF part is unused and in its original packaging.
Return procedure for LTC2262IUJ-12#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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