Analog Devices Inc. LTC2240IUP-10#PBF

Overview

LTC2240IUP-10#PBF from Analog Devices (formerly Linear Technology) is a 10-bit, 170Msps pipelined analog-to-digital converter optimized for high-frequency signal digitization in communications infrastructure. It delivers 60.6dB SNR, 80dB SFDR, and ultralow 95fs_RMS aperture jitter, enabling IF undersampling in wireless base stations and cable head-end systems with ±0.5V or ±1V selectable input range.

For engineers reviewing the LTC2240IUP-10#PBF datasheet, LTC2240IUP-10#PBF pinout, LTC2240IUP-10#PBF application, or LTC2240IUP-10#PBF equivalent, key selection criteria include full-power bandwidth (1.2GHz), LVDS/CMOS output flexibility, clock duty cycle stabilization, shutdown/napping modes, and QFN-64 package thermal performance under industrial temperature range (–40°C to +85°C).

Technical Context

The LTC2240IUP-10#PBF implements a five-stage pipelined ADC architecture with internal correction logic and flexible reference routing. Its differential analog front-end supports 1.2GHz full-power bandwidth S/H and programmable input common-mode (1.2–1.3V) via VCM pin, while the encode interface accepts PECL/LVDS/TTL/CMOS clocks with optional duty-cycle stabilizer.

Digital output configuration is fully configurable: LVDS (differential 100Ω), full-rate CMOS (single-ended, 0.5–2.625V OVDD), or demultiplexed CMOS (two 5-bit buses at half-rate, interleaved or simultaneous update). Output mode is selected via LVDS pin voltage level, and data format (offset binary or 2's complement) is controlled by MODE pin.

Key Specifications

Pinout & Package

Package: 64-lead (9mm × 9mm) plastic QFN with exposed thermal pad (Pin 65 = GND), rated for –40°C to +85°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LTC2240IUP-10#PBF, LTC2241IUP-10#PBF offers +40Msps throughput with identical feature set and footprint, while AD9208BCPZ-1000 provides 4× resolution and 18× speed at the cost of complexity, power, and non-compatible packaging - making LTC2240IUP-10#PBF optimal for cost-sensitive, thermally constrained 170Msps applications.

Availability

LTC2240IUP-10#PBF is available at Aetrix Electronics and suitable for wireless infrastructure, cable access equipment, and test instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC2240IUP-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 LTC2240 family was designed specifically for demanding communications infrastructure applications requiring high dynamic range, low jitter, and flexible digital interfacing - targeting base station receivers, cable head-ends, and linearization feedback paths where SNR and SFDR directly impact spectral efficiency.

FAQ

What is the operating temperature range for the LTC2240IUP-10#PBF?

The LTC2240IUP-10#PBF is specified for industrial operation from –40°C to +85°C. This rating is validated across all electrical parameters including INL (±0.3LSB typ), SNR (60.6dB), and power dissipation (445mW CMOS mode), making it suitable for outdoor wireless equipment and uncooled rack-mounted test gear where ambient temperatures exceed commercial-grade limits.

Does the LTC2240IUP-10#PBF support both LVDS and CMOS digital outputs?

Yes, the LTC2240IUP-10#PBF supports three output configurations via the LVDS pin: LVDS mode (differential, 247–454mV swing), full-rate CMOS (single-ended, 0.5–2.625V OVDD), and demultiplexed CMOS (two 5-bit buses at half-rate). All modes are software-configurable with no hardware changes required - the same LTC2240IUP-10#PBF can be deployed across FPGA, ASIC, and microcontroller platforms.

How does the SENSE pin configure input range on the LTC2240IUP-10#PBF?

The SENSE pin on the LTC2240IUP-10#PBF sets the full-scale differential input range: connecting to VCM selects ±0.5V, to VDD selects ±1V, and to an external voltage between 0.5V and 1V selects ±V_SENSE. This direct analog programming eliminates digital register writes or external resistor networks, simplifying calibration in production test and field upgrades for the LTC2240IUP-10#PBF.

What is the pipeline latency of the LTC2240IUP-10#PBF in different output modes?

The LTC2240IUP-10#PBF has fixed 5-cycle pipeline latency in full-rate CMOS and demux CMOS (interleaved), and 5–6 cycles in demux CMOS (simultaneous) due to internal data alignment. This deterministic latency - confirmed across –40°C to +85°C - enables precise timing closure in FPGA-based DDC chains and real-time loop control where the LTC2240IUP-10#PBF feeds feedback paths.

Can the LTC2240IUP-10#PBF operate with a single 2.5V supply?

Yes, the LTC2240IUP-10#PBF operates from a single 2.5V analog supply (VDD) with absolute max rating of 2.8V. Digital outputs use separate OVDD (0.5–2.625V for CMOS, 2.375–2.625V for LVDS), allowing I/O voltage translation to match FPGA or ASIC logic families without level shifters - a key design advantage for the LTC2240IUP-10#PBF in mixed-voltage systems.