Analog Devices Inc. LTC2242IUP-10#PBF

Overview

LTC2242IUP-10#PBF from Analog Devices (formerly Linear Technology) is a 10-bit, 250Msps pipelined analog-to-digital converter optimized for high-frequency signal digitization in communications infrastructure. It delivers 60.5dB SNR and 78dB SFDR at 70MHz input, with 95fsRMS aperture jitter and 1.2GHz full-power bandwidth, enabling IF undersampling in wireless base stations and cable head-end systems.

For engineers reviewing the LTC2242IUP-10#PBF datasheet, LTC2242IUP-10#PBF pinout, LTC2242IUP-10#PBF application, or LTC2242IUP-10#PBF equivalent, key selection considerations include its dual-mode LVDS/CMOS outputs, ±0.5V or ±1V selectable input range, clock duty cycle stabilizer, shutdown/nap modes, and operation across –40°C to +85°C industrial temperature range.

Technical Context

The LTC2242IUP-10#PBF implements a five-stage pipelined ADC architecture with internal correction logic and flexible reference management. Its differential analog input path supports up to 1.2GHz full-power bandwidth, while the low-jitter sample-and-hold enables accurate undersampling of IF signals without external filtering.

Digital interface flexibility includes LVDS outputs (247–454mV differential swing), single-ended CMOS (0.5V–2.625V OVDD programmable), or demultiplexed CMOS buses with interleaved/simultaneous update options. Clock acceptance covers PECL, LVDS, TTL, and CMOS inputs, with optional duty cycle stabilization for robust timing margin.

Key Specifications

Pinout & Package

Package: 64-lead (9mm × 9mm) plastic QFN with exposed thermal pad (Pin 65 = GND). Requires soldering of exposed pad 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 AD9246BCPZ-125 and LTC2262IUP-12#PBF, the LTC2242IUP-10#PBF offers optimal balance of speed, power (740mW), and industrial temperature support for cost-sensitive broadband infrastructure, whereas AD9246BCPZ-125 trades speed for resolution and LTC2262IUP-12#PBF increases resolution at higher power and cost.

Availability

LTC2242IUP-10#PBF is available at Aetrix Electronics and suitable for wireless infrastructure, cable access equipment, and automated test systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC2242IUP-10#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 LTC2242IUP-10#PBF belongs to ADI's high-speed precision ADC product line, designed specifically for demanding communications infrastructure applications requiring wide bandwidth, low jitter, and robust industrial-grade operation.

FAQ

What is the operating temperature range of the LTC2242IUP-10#PBF?

The LTC2242IUP-10#PBF is rated for industrial operation from –40°C to +85°C, verified across all key AC and DC specifications including SNR, SFDR, INL, and DNL. This range is explicitly defined in the Absolute Maximum Ratings and Converter Characteristics tables of the official datasheet, and applies to both LVDS and CMOS output configurations.

Does the LTC2242IUP-10#PBF support both LVDS and CMOS digital outputs?

Yes, the LTC2242IUP-10#PBF supports three output configurations via the LVDS pin: LVDS mode (differential 100Ω-terminated), full-rate CMOS (single-ended 10-bit bus), and demultiplexed CMOS (two 5-bit buses with CLKOUTA/CLKOUTB). The OVDD supply is independently configurable from 0.5V to 2.625V in CMOS mode, allowing compatibility with 1.8V or 2.5V FPGA I/O banks.

How does the SENSE pin configure input range on the LTC2242IUP-10#PBF?

The SENSE pin on the LTC2242IUP-10#PBF selects full-scale input range: tied to VCM (1.25V) yields ±0.5V differential range; tied to VDD (2.5V) yields ±1V; an external voltage between 0.5V and 1V sets ±VSENSE. This direct analog programming eliminates need for external resistive dividers or DAC-controlled references.

What power savings do the shutdown and nap modes provide for the LTC2242IUP-10#PBF?

In nap mode (SHDN = VDD, OE = GND), the LTC2242IUP-10#PBF draws 28mW; in sleep mode (SHDN = VDD, OE = VDD), it draws only 1mW. Both modes retain register settings and reference bias, enabling sub-microsecond wake-up to full operation - ideal for burst-mode receivers and energy-conscious test equipment.

Is the LTC2242IUP-10#PBF pin-compatible with other devices in the LTC224x family?

Yes, the LTC2242IUP-10#PBF shares identical 64-pin QFN packaging, pinout, and footprint with LTC2242-12, LTC2241-10, LTC2241-12, LTC2240-10, and LTC2240-12 variants. This enables hardware reuse across 10-bit and 12-bit versions and multiple sample rates (170–250Msps), simplifying platform scalability and reducing PCB redesign effort.