Analog Devices Inc. LTC2233IUK#TRPBF

Overview

LTC2233IUK#TRPBF from Analog Devices (formerly Linear Technology) is a 10-bit, 80Msps analog-to-digital converter optimized for high-frequency signal digitization in communications infrastructure. It delivers 61dB SNR at 140MHz input and 75dB SFDR up to 200MHz, operates from a single 3.3V supply, dissipates 366mW, and supports ±0.5V or ±1V differential input ranges. It is deployed in cable head-end systems for digitizing wideband RF signals prior to digital signal processing.

For engineers reviewing the LTC2233IUK#TRPBF datasheet, LTC2233IUK#TRPBF pinout, LTC2233IUK#TRPBF application, or LTC2233IUK#TRPBF equivalent, key selection criteria include its 80Msps sampling rate, 775MHz full-power bandwidth, ultralow 0.15psRMS aperture jitter, flexible output voltage range (0.5V–3.6V), and support for offset binary or 2's complement data formats with optional clock duty cycle stabilization.

Technical Context

The LTC2233IUK#TRPBF implements a five-stage CMOS pipelined ADC architecture with integrated sample-and-hold, correction logic, and flexible reference programming via SENSE and MODE pins. Its differential analog input path supports common-mode voltages from 1.1V to 2.5V, and the encode interface accepts PECL, LVDS, TTL, or CMOS clocks with optional duty cycle stabilization.

It features separate analog (VDD) and output (OVDD) power domains, enabling independent logic-level interfacing from 0.5V to 3.6V. Power management includes shutdown (2mW) and nap (35mW) modes, while pipeline latency is fixed at 5 conversion cycles with deterministic ENC-to-data timing (1.3–4ns).

Key Specifications

Pinout & Package

Package: 48-lead 7mm × 7mm plastic QFN with exposed pad (GND). Thermal resistance θ_JA = 29°C/W; exposed pad must be soldered to PCB ground plane for thermal and electrical performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9215BRUZ-80 and ADS5272IPFP, the LTC2233IUK#TRPBF provides superior SNR/SFDR trade-offs at high input frequencies, configurable I/O voltage, and integrated clock conditioning-making it optimal for RF-intensive, thermally sensitive, or mixed-voltage system designs.

Availability

LTC2233IUK#TRPBF is available at Aetrix Electronics and suitable for cable head-end systems, wireless infrastructure equipment, and communications test instrumentation requiring stable component supply across extended temperature ranges.

Supply support for LTC2233IUK#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. is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving aerospace, industrial, automotive, and communications markets.

The LTC2233IUK#TRPBF belongs to Linear Technology's high-speed precision ADC product line, designed specifically for demanding communications applications requiring wide bandwidth, low jitter, and robust DC accuracy over industrial temperature ranges.

FAQ

What is the operating temperature range of the LTC2233IUK#TRPBF?

The LTC2233IUK#TRPBF is rated for industrial operation from –40°C to +85°C (I-grade), with guaranteed performance across this range for parameters including INL (±0.8LSB), DNL (±0.6LSB), SNR, and SFDR. Its thermal design uses a 7mm × 7mm QFN package with exposed pad for efficient heat dissipation at 366mW.

Does the LTC2233IUK#TRPBF support both offset binary and 2's complement output formats?

Yes, the LTC2233IUK#TRPBF supports both output formats. The MODE pin selects the format: connecting MODE to 0V or VDD yields offset binary; connecting MODE to 2/3 VDD or 1/3 VDD yields 2's complement. This flexibility allows seamless integration with FPGAs or ASICs requiring either data representation scheme.

How does the clock duty cycle stabilizer function in the LTC2233IUK#TRPBF?

The clock duty cycle stabilizer in the LTC2233IUK#TRPBF is enabled by setting MODE to 1/3 VDD or 2/3 VDD. It corrects asymmetric ENC+/ENC– waveforms internally, allowing full 80Msps performance even with duty cycles from 40% to 60%, eliminating need for external clock conditioning circuits in cost-sensitive designs.

What are the absolute maximum ratings for analog input voltage on the LTC2233IUK#TRPBF?

The absolute maximum analog input voltage for the LTC2233IUK#TRPBF is –0.3V to (VDD + 0.3V), with VDD specified from 3.1V to 3.5V. Exceeding these limits risks latch-up or permanent damage. For safe operation at ±1V differential range, common-mode voltage must be maintained between 1.1V and 2.5V per the datasheet specifications.

Can the LTC2233IUK#TRPBF interface directly with a 1.8V FPGA I/O bank?

Yes, the LTC2233IUK#TRPBF can interface directly with a 1.8V FPGA I/O bank by setting OVDD = 1.8V. Its digital outputs support VOH ≥ 1.79V and VOL ≤ 0.09V under 1.6mA load, meeting 1.8V LVTTL/LVCMOS thresholds. OGND must be tied to the FPGA's ground plane, and proper decoupling (0.1µF ceramic per OVDD pin) is required.