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Analog Devices Inc. LTC2260IUJ-12#PBF
- Part No.:
- LTC2260IUJ-12#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
LTC2260IUJ-12#PBF.pdf
- Description:
- IC ADC 12BIT PIPELINED 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:218
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Product details
Overview
LTC2260IUJ-12#PBF from Analog Devices (formerly Linear Technology) is a 12-bit, 105 Msps ultralow-power analog-to-digital converter optimized for undersampling IF signals in communications infrastructure. It delivers 70.8 dB SNR, 85 dB SFDR, and 0.17 psRMS aperture jitter with single 1.8 V supply operation, targeting cellular base stations and software-defined radios.
For engineers reviewing the LTC2260IUJ-12#PBF datasheet, LTC2260IUJ-12#PBF pinout, LTC2260IUJ-12#PBF application, or LTC2260IUJ-12#PBF equivalent, key selection criteria include sampling rate (105 Msps), input bandwidth (800 MHz full-power), output interface flexibility (CMOS/DDR CMOS/DDR LVDS), low-power operation (103 mW typical), and industrial temperature range (–40°C to +85°C).
Technical Context
The LTC2260IUJ-12#PBF implements a 12-bit pipelined ADC architecture with integrated sample-and-hold, correction logic, and configurable digital outputs. Its 800 MHz full-power bandwidth supports wideband RF/IF digitization, while optional clock duty cycle stabilizer and data randomizer enhance spectral purity under non-ideal clock conditions.
It supports three digital output modes-full-rate CMOS, double-data-rate CMOS, and double-data-rate LVDS-with separate OVDD supply (1.2 V to 1.9 V) enabling voltage-level optimization. The SPI-configurable serial port allows runtime control of shutdown, nap mode, and input range (1 VP-P to 2 VP-P), with differential or single-ended encode inputs (ENC+/ENC–).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit, no missing codes over temperature - ensures monotonicity and full dynamic range utilization in precision acquisition. |
| Sampling Rate | 105 Msps - enables Nyquist-sampled digitization of signals up to 52.5 MHz or high-fidelity undersampling of IF bands up to ~70 MHz. |
| SNR / SFDR | 70.8 dB / 85 dB at 70 MHz input - provides clean signal capture for demanding wireless standards including LTE and WCDMA. |
| Aperture Jitter | 0.17 psRMS - minimizes noise floor degradation when undersampling multi-MHz IF signals. |
| Power Dissipation | 103 mW typical (sine input, CMOS mode) - reduces thermal load and simplifies thermal design in dense RF front-end modules. |
| Analog Supply | Single 1.8 V (VDD), ±0.1 V tolerance - compatible with modern low-voltage system rails and eliminates need for dual supplies. |
| Input Bandwidth | 800 MHz full-power - supports direct digitization of wideband IF signals without external filtering or gain stages. |
Pinout & Package
Package: 40-lead (6 mm × 6 mm) plastic QFN (UJ), exposed pad soldered to PCB ground for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+, AIN– | Differential analog input | Accepts 1–2 VP-P input with 800 MHz bandwidth; common-mode bias set via VCM pin. |
| ENC+, ENC– | Differential encode clock input | Triggers conversion on rising/falling edges; supports PECL/LVDS/TTL/CMOS drive; duty cycle stabilizer enabled via CS. |
| VDD (Pins 9,10,40) | Analog power supply | 1.8 V ±0.1 V supply; requires local 0.1 µF ceramic bypass per pin pair. |
| OVDD (Pin 26) | Digital output supply | Configurable 1.2–1.9 V rail for CMOS output swing or LVDS termination; decoupled with 0.1 µF capacitor. |
| D0–D11 | Data outputs | In full-rate CMOS mode: 12 single-ended outputs (MSB = D11); in DDR modes: time-multiplexed pairs (e.g., D0_1, D10_11) or differential LVDS pairs (D0_1+, D0_1–). |
| PAR/SER (Pin 8) | Programming mode select | Ground = serial SPI interface (CS/SCK/SDI/SDO active); VDD = parallel mode (CS/SCK/SDI repurposed for control). |
| SENSE (Pin 39) | Reference programming | Sets input range: VDD → ±1 V; GND → ±0.5 V; external 0.625–1.3 V → ±0.8×VSENSE. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow power at 105 Msps | 103 mW typical dissipation enables compact, fanless RF subsystems without thermal throttling. |
| Selectably configurable outputs | Hardware-selectable CMOS, DDR CMOS, or DDR LVDS interfaces simplify integration across FPGA, ASIC, and DSP platforms. |
| Integrated clock duty cycle stabilizer | Compensates for >20%–80% input clock duty cycle variation, eliminating need for external clock conditioning circuitry. |
| Serial SPI configuration port | Enables runtime reconfiguration of nap/shutdown modes, data randomization, and input range without hardware changes. |
| Industrial temperature grade | –40°C to +85°C operation ensures reliability in outdoor base station cabinets and portable medical imaging enclosures. |
Applications
| Cellular Base Stations | Software Defined Radios |
|---|---|
Use Scenario: Digitizing 70–140 MHz IF signals from multi-carrier transceivers in macrocell and small-cell BTS. IC Role / Device Role / Timing Role: High-speed ADC capturing wideband channelized signals with minimal quantization noise and spurious content. Use Value: 70.8 dB SNR and 85 dB SFDR meet 3GPP ACLR and EVM requirements for LTE-A carrier aggregation without additional calibration. | Use Scenario: Reconfigurable RF front-end in military/commercial SDR platforms supporting multiple waveforms (e.g., FM, AM, OFDM). IC Role / Device Role / Timing Role: Flexible sampling engine adapting to varying bandwidth and frequency plan via SPI-controlled input range and output format. Use Value: Pin-compatible family (LTC2261/LTC2260/LTC2259) allows single PCB layout scaling across 125/105/80 Msps performance tiers. |
| Portable Medical Imaging | Multi-Channel Data Acquisition |
Use Scenario: Ultrasound beamformer digitizing echo return signals from phased-array transducers. IC Role / Device Role / Timing Role: Low-jitter (0.17 psRMS) ADC enabling precise time-of-flight measurements and high-resolution B-mode imaging. Use Value: Single 1.8 V supply and 103 mW power reduce battery drain and heat generation in handheld ultrasound units. | Use Scenario: Simultaneous sampling of multiple sensor channels (e.g., vibration, acoustic emission) in industrial condition monitoring systems. IC Role / Device Role / Timing Role: High-channel-density ADC with deterministic latency (5.5 cycles pipeline) for synchronized time-domain analysis. Use Value: DDR LVDS outputs reduce interconnect count and EMI vs. parallel CMOS, easing routing on multi-layer sensor interface boards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9226BSTZ-105 | 12-bit, 105 Msps; 7.5 mW lower power (95.5 mW), but only 69.6 dB SNR and no internal clock stabilizer. | Less suitable for undersampling above 50 MHz due to lower SFDR (82 dB) and higher jitter (0.35 psRMS). | Prefer LTC2260IUJ-12#PBF when spectral purity and IF undersampling capability are critical. |
| LTC2261IUJ-12#PBF | Pin-compatible 125 Msps variant; identical package, pinout, and feature set; 21 mW higher power (124 mW typical). | Direct upgrade path for systems requiring higher Nyquist bandwidth or tighter timing margins. | Select LTC2260IUJ-12#PBF where 105 Msps suffices and lower power consumption is prioritized. |
Compared with AD9226BSTZ-105, the LTC2260IUJ-12#PBF delivers superior dynamic range and jitter performance essential for wideband IF digitization, while compared with LTC2261IUJ-12#PBF, it offers identical functionality at reduced power and cost for applications not requiring maximum sample rate.
Availability
LTC2260IUJ-12#PBF is available at Aetrix Electronics and suitable for cellular infrastructure, portable medical imaging, and multi-channel test equipment requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature compliance.
Supply support for LTC2260IUJ-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 RF ICs for precision signal processing.
The LTC2260IUJ-12#PBF belongs to the LTC226x family of ultralow-power, high-SFDR ADCs designed specifically for communications and instrumentation applications demanding wide input bandwidth, low jitter, and flexible digital interfacing.
FAQ
What is the operating temperature range of the LTC2260IUJ-12#PBF?
The LTC2260IUJ-12#PBF is rated for industrial operation from –40°C to +85°C, as confirmed by its "I" grade marking and Absolute Maximum Ratings table. This range supports deployment in outdoor base station cabinets, portable diagnostic devices, and factory-floor data acquisition systems without derating.
Does the LTC2260IUJ-12#PBF support both CMOS and LVDS output interfaces?
Yes, the LTC2260IUJ-12#PBF supports full-rate CMOS, double-data-rate CMOS, and double-data-rate LVDS output modes. Mode selection is controlled by the PAR/SER pin and SCK level in parallel programming mode, with LVDS requiring OVDD = 1.8 V and internal 100 Ω termination.
What is the typical power consumption of the LTC2260IUJ-12#PBF at 105 Msps?
The LTC2260IUJ-12#PBF consumes 103 mW typical power with sine-wave input and CMOS output mode at 105 Msps, as specified in the Power Requirements table. LVDS mode increases dissipation to 172–210 mW depending on output current setting (1.75 mA or 3.5 mA).
Can the LTC2260IUJ-12#PBF be configured for different analog input ranges?
Yes, the LTC2260IUJ-12#PBF supports selectable input ranges from 1 VP-P to 2 VP-P via the SENSE pin: connecting SENSE to VDD selects ±1 V, to GND selects ±0.5 V, and applying 0.625–1.3 V sets ±0.8×VSENSE, enabling optimal dynamic range matching for diverse signal sources.
Is the LTC2260IUJ-12#PBF pin-compatible with other members of the LTC226x family?
Yes, the LTC2260IUJ-12#PBF is pin-compatible with the LTC2261-12 and LTC2259-12 in the same UJ package, sharing identical pin functions, package footprint, and power/ground arrangements - allowing hardware reuse across 125/105/80 Msps performance grades.
LTC2260IUJ-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):
- 105M
- 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:
- -
LTC2260IUJ-12#PBF FAQ
1.How can I place an order for LTC2260IUJ-12#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2260IUJ-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 LTC2260IUJ-12#PBF reliable?
The price and inventory of LTC2260IUJ-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 LTC2260IUJ-12#PBF is usually 5 days.
3.What payment methods are accepted for LTC2260IUJ-12#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2260IUJ-12#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2260IUJ-12#PBF?
LTC2260IUJ-12#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2260IUJ-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 LTC2260IUJ-12#PBF?
For technical support, including LTC2260IUJ-12#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2260IUJ-12#PBF requirements.
6.How does Aetrix verify that LTC2260IUJ-12#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2260IUJ-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 LTC2260IUJ-12#PBF meets industry standards.
7.What is the process for return or replacement of LTC2260IUJ-12#PBF?
All LTC2260IUJ-12#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2260IUJ-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 LTC2260IUJ-12#PBF part is unused and in its original packaging.
Return procedure for LTC2260IUJ-12#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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