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

Analog Devices Inc. LTC2258CUJ-12#TRPBF

Name: LTC2258CUJ-12#TRPBF
Brand: Analog Devices Inc.
SKU: LTC2258CUJ-12#TRPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LTC2258CUJ-12#TRPBF

Manufacturer:: Analog Devices Inc.

Category:: Analog to Digital Converters (ADC)

Package:: 40-WFQFN Exposed Pad

Datasheet:: LTC2258CUJ-12#TRPBF.pdf

Description:: IC ADC 12BIT PIPELINED 40QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

LTC2258CUJ-12#TRPBF from Analog Devices (formerly Linear Technology) is a 12-bit, 65 Msps ultralow-power analog-to-digital converter with 71.1 dB SNR, 88 dB SFDR, and 0.17 ps_RMS aperture jitter. It operates from a single 1.8 V supply, supports CMOS/DDR CMOS/DDR LVDS outputs, and targets high-frequency signal digitization in communications infrastructure.

For engineers reviewing the LTC2258CUJ-12#TRPBF datasheet, LTC2258CUJ-12#TRPBF pinout, LTC2258CUJ-12#TRPBF application, or LTC2258CUJ-12#TRPBF equivalent, this page delivers verified specifications, package mapping, functional pin roles, real-world use cases, and validated alternative options for RF sampling, SDR, and portable medical imaging designs.

Technical Context

The LTC2258CUJ-12#TRPBF employs a pipelined ADC architecture with integrated sample-and-hold, correction logic, and configurable output drivers. Its 800 MHz full-power bandwidth enables undersampling of IF signals up to 140 MHz while maintaining 71.1 dB SNR at 65 Msps.

It features dual-reference support (internal 1.25 V or external 0.625–1.3 V), programmable input range (1–2 V_P-P), optional clock duty cycle stabilizer, data randomizer, and SPI-configurable sleep/nap modes - all implemented within a 40-pin QFN package with exposed thermal pad.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	12-bit with no missing codes over temperature - ensures monotonicity and guaranteed code coverage in precision acquisition systems.
Sampling Rate	65 Msps maximum - supports Nyquist-sampled baseband or undersampled IF signals up to 140 MHz in communications receivers.
SNR / SFDR	71.1 dB SNR and 88 dB SFDR at 70 MHz input - enables high-fidelity digitization of wide dynamic range RF signals with low noise floor and spurious suppression.
Aperture Jitter	0.17 ps_RMS - critical for preserving ENOB when undersampling multi-MHz carrier frequencies without external jitter cleanup.
Power Consumption	79 mW at 65 Msps (CMOS mode, 1.8 V) - achieves ultralow power for battery-constrained or thermally sensitive portable instrumentation.
Analog Input BW	800 MHz full-power bandwidth - allows direct digitization of wideband signals without external anti-alias filtering degradation.
Digital Interface	Configurable CMOS / DDR CMOS / DDR LVDS outputs with separate OVDD (1.2–1.8 V) - simplifies interface to FPGAs with voltage-scalable I/O banks.

Pinout & Package

40-lead (6 mm × 6 mm) plastic QFN package (UJ) with exposed GND pad (Pin 41), rated for 0°C to 70°C operation. Pinout varies by digital output mode (full-rate CMOS, DDR CMOS, or DDR LVDS); all configurations share common analog, reference, and control pins.

Pin/Terminal	Circuit Role	Design Meaning
AIN+, AIN– (1, 2)	Differential analog input pair	Accepts 1–2 V_P-P differential signal; common-mode bias set by internal VCM (Pin 37) or external source.
ENC+, ENC– (11, 12)	Differential encode clock inputs	Trigger conversion on rising/falling edges; support PECL/LVDS/TTL/CMOS drive; duty cycle stabilizer enabled via CS (Pin 13).
PAR/SER (8)	Programming mode selector	Ground = serial SPI interface (CS/SCK/SDI/SDO active); VDD = parallel mode (CS/SCK/SDI repurposed for control).
VDD (9, 10, 40)	Analog supply	1.7–1.9 V nominal; requires local 0.1 µF ceramic bypass per pin for noise-sensitive analog core stability.
OVDD (26)	Digital output supply	1.1–1.9 V; sets CMOS output swing (1.2–1.8 V) or enables LVDS termination (1.7–1.9 V); bypassed to OGND (Pin 25).
REFH, REFL (4, 5, 6, 7)	Reference voltage terminals	Define full-scale range; require 2.2 µF + 0.1 µF ceramic bypass network between REFH/REFL and GND.
SENSE (39)	Reference programming input	Selects ±0.5 V (GND), ±1 V (VDD), or ±0.8×V_SENSE (external 0.625–1.3 V) input range - enables flexible signal scaling.
VCM (37)	Common-mode bias output	Nominally VDD/2 (±25 ppm/°C drift); used to bias AIN+/AIN– common-mode point - reduces external component count.
CLKOUT+, CLKOUT– (27, 28)	Data strobe outputs	LVDS-compatible clock aligned to data transitions; phase delay programmable via SPI for timing margin optimization.
OF (36)	Over/underflow flag	Active-high indicator of input signal exceeding selected full-scale range - enables real-time clipping detection and AGC feedback.

Key Features

Feature	Design Value
Ultralow power at 65 Msps	79 mW total dissipation - enables dense multi-channel ADC arrays without thermal throttling in compact form factors.
Configurable digital outputs	Hardware-selectable CMOS / DDR CMOS / DDR LVDS - eliminates need for external level shifters or serializers in FPGA-connected systems.
Integrated clock duty cycle stabilizer	Compensates for >20% duty cycle variation in ENC inputs - maintains timing margins without external clock conditioning circuitry.
Programmable input range & reference	Single-pin SENSE selection of ±0.5 V, ±1 V, or user-defined range - simplifies front-end gain staging across diverse sensor interfaces.
SPI-configurable low-power modes	Separate Nap (9 mW) and Sleep (0.5 mW) states - extends battery life in portable diagnostic or field-deployed test equipment.
On-chip termination for LVDS	100 Ω internal differential termination - reduces PCB routing complexity and improves signal integrity in high-speed backplanes.

Applications

Cellular Base Stations	Software Defined Radios
Use Scenario: Digitizing 70–140 MHz IF signals in macrocell and small-cell transceivers with tight adjacent-channel rejection requirements. IC Role / Device Role / Timing Role: High-speed ADC front-end capturing wide instantaneous bandwidth for digital predistortion and MIMO processing. Use Value: 88 dB SFDR prevents intermodulation distortion from masking weak adjacent channels; 0.17 ps_RMS jitter preserves EVM under LTE/5G modulation.	Use Scenario: Reconfigurable RF receiver in military comms or spectrum monitoring systems requiring rapid band-switching and multi-standard support. IC Role / Device Role / Timing Role: Wideband digitizer enabling real-time FFT analysis and adaptive demodulation across HF to L-band. Use Value: 800 MHz analog bandwidth allows direct sampling of UHF bands without image-reject mixers; SPI reconfiguration enables runtime mode switching.
Portable Medical Imaging	Multi-Channel Data Acquisition
Use Scenario: Ultrasound beamforming subsystem where low power and high SNR are critical for battery-operated handheld scanners. IC Role / Device Role / Timing Role: Channel ADC in phased-array receive path, synchronized across 16–64 channels for coherent signal summation. Use Value: 71.1 dB SNR resolves subtle tissue contrast differences; 79 mW power enables 8+ channels per 1.8 V rail without thermal derating.	Use Scenario: High-precision vibration analysis or acoustic emission monitoring in industrial predictive maintenance systems. IC Role / Device Role / Timing Role: Simultaneous sampling node acquiring synchronized time-domain waveforms from multiple sensors. Use Value: ±0.3 LSB INL and ±0.1 LSB DNL ensure accurate amplitude fidelity for FFT-based fault signature extraction; 40-pin QFN eases layout in space-constrained modules.

Cellular Base Stations

Software Defined Radios

Use Scenario: Digitizing 70–140 MHz IF signals in macrocell and small-cell transceivers with tight adjacent-channel rejection requirements.

IC Role / Device Role / Timing Role: High-speed ADC front-end capturing wide instantaneous bandwidth for digital predistortion and MIMO processing.

Use Value: 88 dB SFDR prevents intermodulation distortion from masking weak adjacent channels; 0.17 ps_RMS jitter preserves EVM under LTE/5G modulation.

Use Scenario: Reconfigurable RF receiver in military comms or spectrum monitoring systems requiring rapid band-switching and multi-standard support.

IC Role / Device Role / Timing Role: Wideband digitizer enabling real-time FFT analysis and adaptive demodulation across HF to L-band.

Use Value: 800 MHz analog bandwidth allows direct sampling of UHF bands without image-reject mixers; SPI reconfiguration enables runtime mode switching.

Portable Medical Imaging

Multi-Channel Data Acquisition

Use Scenario: Ultrasound beamforming subsystem where low power and high SNR are critical for battery-operated handheld scanners.

IC Role / Device Role / Timing Role: Channel ADC in phased-array receive path, synchronized across 16–64 channels for coherent signal summation.

Use Value: 71.1 dB SNR resolves subtle tissue contrast differences; 79 mW power enables 8+ channels per 1.8 V rail without thermal derating.

Use Scenario: High-precision vibration analysis or acoustic emission monitoring in industrial predictive maintenance systems.

IC Role / Device Role / Timing Role: Simultaneous sampling node acquiring synchronized time-domain waveforms from multiple sensors.

Use Value: ±0.3 LSB INL and ±0.1 LSB DNL ensure accurate amplitude fidelity for FFT-based fault signature extraction; 40-pin QFN eases layout in space-constrained modules.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
AD9226BCPZ-65	12-bit, 65 Msps; 72.5 dB SNR, 85 dB SFDR; 3.3 V supply; parallel CMOS only; no LVDS or DDR support.	Requires external level translation for 1.8 V FPGA interfaces; higher power (225 mW); lacks clock stabilizer and programmable input range.	Choose AD9226BCPZ-65 only if legacy 3.3 V system integration or lower cost outweighs power, flexibility, and jitter advantages of LTC2258CUJ-12#TRPBF.
LTC2268IUJ-12#TRPBF	Same pinout and feature set; –40°C to 85°C extended temperature grade; identical electrical specs except guaranteed over wider range.	Required for automotive or outdoor industrial deployments where ambient temperature exceeds 70°C.	Choose LTC2268IUJ-12#TRPBF when operating environment exceeds 70°C; otherwise LTC2258CUJ-12#TRPBF provides identical performance at lower cost for commercial-grade applications.

Compared with AD9226BCPZ-65, LTC2258CUJ-12#TRPBF delivers 46% lower power and native 1.8 V compatibility, while LTC2268IUJ-12#TRPBF offers identical functionality with extended temperature qualification - making LTC2258CUJ-12#TRPBF the optimal choice for cost-sensitive, thermally constrained commercial designs.

Availability

LTC2258CUJ-12#TRPBF is available at Aetrix Electronics and suitable for cellular base stations, software defined radios, and portable medical imaging systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for LTC2258CUJ-12#TRPBF 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 LTC2258CUJ-12#TRPBF belongs to Linear's ultralow-power, high-speed ADC family designed specifically for demanding communications and instrumentation applications where SNR, jitter, and power efficiency are critical.

FAQ

What is the maximum sampling rate supported by the LTC2258CUJ-12#TRPBF?

The LTC2258CUJ-12#TRPBF supports a maximum sampling rate of 65 Msps, as confirmed in the Absolute Maximum Ratings and Converter Characteristics tables. This rate is specified for the C-grade (0°C to 70°C) version and applies across all supported output modes (CMOS, DDR CMOS, DDR LVDS) with appropriate supply and load conditions.

Does the LTC2258CUJ-12#TRPBF support external reference voltage?

Yes, the LTC2258CUJ-12#TRPBF supports external reference voltage via the SENSE pin (Pin 39). Applying a voltage between 0.625 V and 1.3 V to SENSE selects an input range of ±0.8 × V_SENSE, enabling precise scaling for custom front-end gain stages without modifying the ADC's internal reference architecture.

What digital output interface options does the LTC2258CUJ-12#TRPBF provide?

The LTC2258CUJ-12#TRPBF provides three hardware-selectable digital output interfaces: full-rate CMOS, double-data-rate CMOS, and double-data-rate LVDS. Output mode is determined by SCK (Pin 14) and PAR/SER (Pin 8) states, and OVDD voltage sets CMOS swing (1.2–1.8 V) or enables LVDS termination (1.7–1.9 V).

How is the clock duty cycle stabilizer enabled on the LTC2258CUJ-12#TRPBF?

The clock duty cycle stabilizer on the LTC2258CUJ-12#TRPBF is enabled by driving CS (Pin 13) high in parallel programming mode (PAR/SER = VDD). When CS is high, the internal stabilizer corrects duty cycle deviations in ENC+/ENC– inputs, allowing high-performance operation even with asymmetric clocks - a capability not available in serial mode.

What is the function of the OF (Over/Under Flow) pin on the LTC2258CUJ-12#TRPBF?

The OF pin (Pin 36) on the LTC2258CUJ-12#TRPBF is an active-high digital output that asserts when the analog input exceeds the selected full-scale range - indicating either overflow (positive saturation) or underflow (negative saturation). This signal enables real-time clipping detection and closed-loop AGC control in receiver chains.

LTC2258CUJ-12#TRPBF Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 40-WFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Number of Bits:: 12

Sampling Rate (Per Second):: 65M

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:: 0°C ~ 70°C

Supplier Device Package:: 40-QFN (6x6)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

LTC2258CUJ-12#TRPBF FAQ

1.How can I place an order for LTC2258CUJ-12#TRPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for LTC2258CUJ-12#TRPBF 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 LTC2258CUJ-12#TRPBF reliable?

The price and inventory of LTC2258CUJ-12#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2258CUJ-12#TRPBF is usually 5 days.

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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2258CUJ-12#TRPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LTC2258CUJ-12#TRPBF?

LTC2258CUJ-12#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LTC2258CUJ-12#TRPBF 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 LTC2258CUJ-12#TRPBF?

For technical support, including LTC2258CUJ-12#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2258CUJ-12#TRPBF requirements.

6.How does Aetrix verify that LTC2258CUJ-12#TRPBF is sourced from the original manufacturer or authorized distributors?

All LTC2258CUJ-12#TRPBF 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 LTC2258CUJ-12#TRPBF meets industry standards.

7.What is the process for return or replacement of LTC2258CUJ-12#TRPBF?

All LTC2258CUJ-12#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2258CUJ-12#TRPBF, 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 LTC2258CUJ-12#TRPBF part is unused and in its original packaging.

Return procedure for LTC2258CUJ-12#TRPBF:

1.Submit a request within 90 days.

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

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