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Home > Products > Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC)

Analog Devices Inc. LTC2241CUP-12#PBF

Name: LTC2241CUP-12#PBF
Brand: Analog Devices Inc.
SKU: LTC2241CUP-12#PBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LTC2241CUP-12#PBF

Manufacturer:: Analog Devices Inc.

Category:: Analog to Digital Converters (ADC)

Package:: 64-WFQFN Exposed Pad

Datasheet:: LTC2241CUP-12#PBF.pdf

Description:: IC ADC 12BIT PIPELINED 64QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

LTC2241CUP-12#PBF from Analog Devices (formerly Linear Technology) is a 12-bit, 210Msps pipeline analog-to-digital converter optimized for high-frequency, wide-dynamic-range signal digitization in communications infrastructure. It delivers 65.5dB SNR, 78dB SFDR at 10MHz input, and ultralow 95fs_RMS aperture jitter-enabling high-fidelity IF undersampling in wireless base stations and cable head-end systems.

For engineers reviewing the LTC2241CUP-12#PBF datasheet, LTC2241CUP-12#PBF pinout, LTC2241CUP-12#PBF application, or LTC2241CUP-12#PBF equivalent, key selection criteria include its dual-mode LVDS/CMOS output interface, ±0.5V or ±1V selectable input range, 1.2GHz full-power bandwidth, 2.5V single-supply operation, and support for clock duty cycle stabilization across wide input duty cycles.

Technical Context

The LTC2241CUP-12#PBF implements a five-stage pipelined ADC architecture with integrated sample-and-hold, correction logic, and flexible reference management. Its differential analog input path supports ±0.5V or ±1V ranges via SENSE pin programming, while internal 1.25V VCM bias enables precise common-mode control.

Digital output flexibility includes LVDS (differential), full-rate CMOS (single-ended), or demultiplexed CMOS (interleaved/simultaneous update), all configurable via LVDS and MODE pins. Clock interface accepts differential (LVDS/PECL) or single-ended (TTL/CMOS) inputs, with optional duty cycle stabilizer to maintain performance across 30%–70% duty cycles.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	12-bit with guaranteed no missing codes over temperature-ensures monotonicity and deterministic code mapping in closed-loop linearization systems.
Sampling Rate	210Msps maximum-supports Nyquist sampling of signals up to 105MHz or undersampling of IF bands up to 1.2GHz full-power bandwidth.
SNR / SFDR	65.5dB SNR and 78dB SFDR at 10MHz input-meets stringent spectral purity requirements for LTE/WiMAX receiver digitization and PA linearization feedback paths.
Aperture Jitter	95fs_RMS-limits sampling-time uncertainty to enable <66dB SNR at 200MHz input frequency without external jitter cleanup.
INL / DNL	±0.7LSB INL (typ), ±0.4LSB DNL (typ)-minimizes harmonic distortion and ensures accurate amplitude fidelity in test equipment digitizers.
Power Dissipation	585mW in CMOS mode, 805mW in LVDS mode-enables thermal management in dense RF front-end modules with minimal heatsinking.
Analog Supply	Single 2.5V supply (2.375V–2.625V)-simplifies power delivery versus dual-supply ADCs and aligns with standard FPGA I/O voltage rails.

Pinout & Package

Package: 64-lead (9mm × 9mm) plastic QFN with exposed thermal pad (Pin 65 = GND), rated for 0°C to 70°C operating temperature (C-grade).

Pin/Terminal	Circuit Role	Design Meaning
AIN+, AIN– (Pins 1–4)	Differential analog input pair	Accepts ±0.5V or ±1V differential signal; requires matched PCB routing and 100Ω termination for optimal dynamic performance.
ENC+, ENC– (Pins 17–18)	Differential encode clock input	Triggers conversion on ENC+ rising / ENC– falling edge; supports PECL/LVDS/TTL/CMOS drive with internal biasing.
LVDS (Pin 57)	Output mode selection	Configures LVDS mode (VDD), demux CMOS interleaved (2/3VDD), demux simultaneous (1/3VDD), or full-rate CMOS (GND).
MODE (Pin 58)	Output format & clock stabilizer control	Selects offset binary/2's complement output and enables/disables clock duty cycle stabilizer via voltage level.
SENSE (Pin 59)	Input range programming	Sets ±0.5V (connected to VCM), ±1V (connected to VDD), or ±V_SENSE (external reference 0.5V–1V) full-scale range.
D0–/D0+ to D11–/D11+ (Pins 21–24, 27–32, 37–40, 43–48, 51–54)	LVDS digital output pairs	12-bit parallel LVDS data bus requiring 100Ω differential termination at receiver; D11± is MSB.
CLKOUT+/CLKOUT– (Pins 35–36)	LVDS data valid strobe	Indicates valid data window; latch on rising CLKOUT– / falling CLKOUT+ edge-critical for timing closure in FPGA interfaces.
SHDN, OE (Pins 19–20)	Power management control	Enable nap mode (SHDN=VDD, OE=GND) consuming 28mW or sleep mode (SHDN=OE=VDD) consuming 1mW for low-power standby.

Key Features

Feature	Design Value
Ultralow 95fs_RMS aperture jitter	Enables direct IF sampling at >100MHz without external jitter cleaners-reducing BOM count and board area in software-defined radios.
Selectably programmable input range (±0.5V / ±1V)	Allows optimization for noise floor (smaller range) or headroom (larger range) without hardware change-accelerating system calibration.
Three CMOS output formats	Supports full-rate (12-bit @ 210MHz), demux interleaved (two 12-bit buses @ 105MHz), or demux simultaneous (two 12-bit buses @ 105MHz with aligned clocks) for FPGA resource matching.
Integrated clock duty cycle stabilizer	Maintains <65dB SFDR across 30%–70% input clock duty cycles-eliminates need for external clock conditioning in variable-duty-cycle PLL environments.
Flexible reference architecture	Internal 1.25V VCM + external REFHA/REFHB/REFLA/REFLB pins allow precision gain/offset control and external reference override for metrology-grade accuracy.

Applications

Wireless Base Station Receiver	Cable Modem Termination System (CMTS)
Use Scenario: Digitizing 180–220MHz IF signals from multi-carrier RF front-end in LTE macrocell base stations. IC Role / Device Role / Timing Role: High-speed ADC capturing wideband downconverted spectrum for digital predistortion (DPD) and MIMO channel estimation. Use Value: 78dB SFDR prevents intermodulation masking of adjacent carriers; 210Msps sampling supports 100MHz instantaneous bandwidth per antenna path.	Use Scenario: Sampling upstream return-path signals (5–42MHz) in DOCSIS 3.1 CMTS line cards with high channel density. IC Role / Device Role / Timing Role: Front-end ADC feeding FPGA-based time-division multiple access (TDMA) burst detection and equalization. Use Value: ±0.5V input range optimizes SNR for low-level upstream bursts; LVDS outputs ensure noise-immune transmission across backplane traces.
RF Power Amplifier Linearization	Communications Test Equipment
Use Scenario: Capturing feedback samples from PA output in real-time adaptive DPD loops for GaN amplifier efficiency enhancement. IC Role / Device Role / Timing Role: Low-latency ADC providing 5-cycle pipeline delay for closed-loop adaptation at 200kHz loop rates. Use Value: 95fs_RMS jitter preserves phase coherence between stimulus and feedback paths-critical for convergence of LMS algorithms.	Use Scenario: High-accuracy waveform capture in vector signal analyzers (VSA) validating 5G NR and Wi-Fi 6E modulation quality. IC Role / Device Role / Timing Role: Precision digitizer measuring EVM, ACLR, and spectral mask compliance with traceable ENOB > 10.5 bits. Use Value: ±0.7LSB INL ensures flat frequency response; 65.5dB SNR meets IEEE 1057 Class A requirements for metrology-grade instruments.

Wireless Base Station Receiver

Cable Modem Termination System (CMTS)

Use Scenario: Digitizing 180–220MHz IF signals from multi-carrier RF front-end in LTE macrocell base stations.

IC Role / Device Role / Timing Role: High-speed ADC capturing wideband downconverted spectrum for digital predistortion (DPD) and MIMO channel estimation.

Use Value: 78dB SFDR prevents intermodulation masking of adjacent carriers; 210Msps sampling supports 100MHz instantaneous bandwidth per antenna path.

Use Scenario: Sampling upstream return-path signals (5–42MHz) in DOCSIS 3.1 CMTS line cards with high channel density.

IC Role / Device Role / Timing Role: Front-end ADC feeding FPGA-based time-division multiple access (TDMA) burst detection and equalization.

Use Value: ±0.5V input range optimizes SNR for low-level upstream bursts; LVDS outputs ensure noise-immune transmission across backplane traces.

RF Power Amplifier Linearization

Communications Test Equipment

Use Scenario: Capturing feedback samples from PA output in real-time adaptive DPD loops for GaN amplifier efficiency enhancement.

IC Role / Device Role / Timing Role: Low-latency ADC providing 5-cycle pipeline delay for closed-loop adaptation at 200kHz loop rates.

Use Value: 95fs_RMS jitter preserves phase coherence between stimulus and feedback paths-critical for convergence of LMS algorithms.

Use Scenario: High-accuracy waveform capture in vector signal analyzers (VSA) validating 5G NR and Wi-Fi 6E modulation quality.

IC Role / Device Role / Timing Role: Precision digitizer measuring EVM, ACLR, and spectral mask compliance with traceable ENOB > 10.5 bits.

Use Value: ±0.7LSB INL ensures flat frequency response; 65.5dB SNR meets IEEE 1057 Class A requirements for metrology-grade instruments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed ADC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AD9230-250EBZ	12-bit, 250Msps; higher sampling rate but 63dB SNR and 72dB SFDR at 10MHz; requires 3.3V/1.8V dual supply.	Better suited for wideband spectrum monitoring where speed outweighs SNR; less optimal for DPD feedback due to lower SFDR.	Choose AD9230-250EBZ when >210Msps sampling is mandatory and SNR >64dB is acceptable.
LTC2242CUP-12#PBF	Pin-compatible 250Msps variant; identical architecture, package, and feature set-but consumes 920mW and exhibits 64.5dB SNR at 10MHz.	Direct drop-in upgrade path for systems needing higher throughput without layout changes; trade-off is 1dB SNR loss and +335mW power.	Choose LTC2242CUP-12#PBF only if system design already accommodates its higher thermal load and relaxed SNR requirement.

Compared with AD9230-250EBZ and LTC2242CUP-12#PBF, the LTC2241CUP-12#PBF provides superior SNR/SFDR at 210Msps with lower power and single-supply simplicity-making it optimal for thermally constrained, noise-sensitive communications infrastructure where 210Msps suffices.

Availability

LTC2241CUP-12#PBF is available at Aetrix Electronics and suitable for wireless infrastructure, cable head-end systems, and RF test equipment requiring stable component supply with guaranteed long-term availability and traceable lot history.

Supply support for LTC2241CUP-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 communications, industrial, automotive, and healthcare markets.

The LTC2241CUP-12#PBF belongs to ADI's high-speed precision ADC product line, engineered specifically for demanding communications infrastructure applications requiring exceptional dynamic range, low jitter, and flexible digital interfacing.

FAQ

What is the operating temperature range for the LTC2241CUP-12#PBF?

The LTC2241CUP-12#PBF is specified for commercial-grade operation from 0°C to 70°C. This is confirmed by the "C" suffix in the part number and the order information table listing "LTC2241CUP-12#PBF" under the 0°C to 70°C temperature range. Industrial-grade variants (e.g., LTC2241IUP-12#PBF) operate from –40°C to 85°C but are distinct part numbers.

Does the LTC2241CUP-12#PBF support both LVDS and CMOS digital outputs?

Yes, the LTC2241CUP-12#PBF supports three output configurations: LVDS (differential), full-rate CMOS (12-bit bus at 210MHz), and demultiplexed CMOS (two 12-bit buses at 105MHz). Output mode is selected via the LVDS pin voltage level, and CMOS output swing is adjustable from 0.5V to 2.625V using OVDD.

What is the significance of the 95fs_RMS aperture jitter specification for the LTC2241CUP-12#PBF?

The 95fs_RMS aperture jitter directly limits achievable SNR at high input frequencies. For example, at 200MHz input, this jitter contributes ≤65.8dB theoretical SNR floor-enabling the measured 65.5dB SNR without requiring external jitter attenuation, simplifying system design in IF sampling architectures.

How does the SENSE pin configure input range on the LTC2241CUP-12#PBF?

The SENSE pin sets full-scale input range: tied to VCM (1.25V) → ±0.5V range; tied to VDD (2.5V) → ±1V range; or driven with external 0.5V–1V reference → ±V_SENSE range. This allows dynamic range optimization without changing external resistor networks or reference ICs.

Is the LTC2241CUP-12#PBF pin-compatible with other devices in the LTC224x family?

Yes, the LTC2241CUP-12#PBF shares the same 64-pin QFN package and pinout with the LTC2242-12 (250Msps), LTC2240-12 (170Msps), and other members of the pin-compatible LTC224x-12 family-enabling scalable sampling rate upgrades within identical PCB layouts.

LTC2241CUP-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):: 210M

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:: 2.375V ~ 2.625V

Voltage - Supply, Digital:: 2.375V ~ 2.625V

Features:: -

Operating Temperature:: 0°C ~ 70°C

Supplier Device Package:: 64-QFN (9x9)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

LTC2241CUP-12#PBF FAQ

1.How can I place an order for LTC2241CUP-12#PBF through Aetrix?

Please submit a Request for Quotation (RFQ) for LTC2241CUP-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 LTC2241CUP-12#PBF reliable?

The price and inventory of LTC2241CUP-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 LTC2241CUP-12#PBF is usually 5 days.

3.What payment methods are accepted for LTC2241CUP-12#PBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2241CUP-12#PBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LTC2241CUP-12#PBF?

LTC2241CUP-12#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LTC2241CUP-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 LTC2241CUP-12#PBF?

For technical support, including LTC2241CUP-12#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2241CUP-12#PBF requirements.

6.How does Aetrix verify that LTC2241CUP-12#PBF is sourced from the original manufacturer or authorized distributors?

All LTC2241CUP-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 LTC2241CUP-12#PBF meets industry standards.

7.What is the process for return or replacement of LTC2241CUP-12#PBF?

All LTC2241CUP-12#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2241CUP-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 LTC2241CUP-12#PBF part is unused and in its original packaging.

Return procedure for LTC2241CUP-12#PBF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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