Analog Devices Inc. LTC2230IUP#PBF

Overview

LTC2230IUP#PBF from Analog Devices (formerly Linear Technology) is a 10-bit, 170 Msps analog-to-digital converter optimized for high-frequency signal digitization in communications infrastructure. It delivers 61 dB SNR at 140 MHz input, 75 dB SFDR up to 200 MHz, and 775 MHz full-power bandwidth, operating from a single 3.3 V supply with 890 mW power dissipation. It is used in cable head-end systems for wideband IF sampling and power amplifier linearization.

For engineers reviewing the LTC2230IUP#PBF datasheet, LTC2230IUP#PBF pinout, LTC2230IUP#PBF application, or LTC2230IUP#PBF equivalent, key selection criteria include its 170 Msps sample rate, LVDS/CMOS/demux CMOS output flexibility, ±0.5 V or ±1 V selectable input range, 0.15 psRMS aperture jitter, and industrial-grade –40°C to +85°C operation.

Technical Context

The LTC2230IUP#PBF employs a 10-bit pipelined ADC architecture with integrated sample-and-hold, correction logic, and flexible reference management. Its ultralow 0.15 psRMS jitter enables undersampling of IF signals up to 200 MHz while maintaining 61 dB SNR and 75 dB SFDR performance.

It supports three digital output configurations: full-rate CMOS (10-bit bus at 170 MHz), demultiplexed CMOS with interleaved update, or demultiplexed CMOS with simultaneous update - all configurable via MODE and LVDS pins. Clock input accepts differential (LVDS, PECL, TTL) or single-ended signals, with optional duty cycle stabilization.

Key Specifications

Pinout & Package

64-pin 9 mm × 9 mm plastic QFN package with exposed thermal pad (Pin 65 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD9208BCPZ-3000, the LTC2230IUP#PBF provides lower power, simpler parallel CMOS/LVDS interfacing, and proven reliability in CATV infrastructure - while compared with LTC2220IUP#PBF, it trades 2 bits of resolution for 110 mW lower power and improved SFDR at high input frequencies.

Availability

LTC2230IUP#PBF is available at Aetrix Electronics and suitable for cable head-end systems, wireless base station DPD feedback paths, broadband test equipment, and high-speed data acquisition requiring stable component supply across extended temperature ranges.

Supply support for LTC2230IUP#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 industrial, automotive, communications, and aerospace markets.

The LTC2230IUP#PBF belongs to ADI's high-speed precision ADC product line, designed specifically for demanding communications infrastructure applications requiring wide bandwidth, low jitter, and industrial temperature resilience.

FAQ

What is the maximum input frequency supported by the LTC2230IUP#PBF while maintaining specified SNR?

The LTC2230IUP#PBF maintains 61 dB SNR up to a 140 MHz input frequency under standard test conditions (–1 dBFS, 2 V range, LVDS outputs). At 200 MHz input, SNR drops to 60.6 dBFS, still meeting typical wideband receiver requirements. Its 775 MHz full-power bandwidth ensures flat gain response well beyond this point, enabling reliable undersampling applications.

Does the LTC2230IUP#PBF support both differential and single-ended analog inputs?

The LTC2230IUP#PBF is optimized for differential analog inputs (AIN+, AIN–) with specified performance including 61 dB SNR and ±0.2 LSB INL. While single-ended input operation is possible per datasheet notes, AC performance (SNR, SFDR) and DC accuracy (INL/DNL) are not guaranteed outside differential mode - the device should be used with transformer or balun-coupled differential signaling for production designs.

How does the clock duty cycle stabilizer affect timing margins in the LTC2230IUP#PBF?

When enabled via the MODE pin, the LTC2230IUP#PBF's internal clock duty cycle stabilizer relaxes input clock duty cycle requirements from 45–55% to 40–60%, improving setup/hold margin for ENC+/ENC– inputs. This allows use of less expensive clock sources and mitigates duty cycle degradation from PCB trace skew or fanout buffers - critical for maintaining 170 Msps timing integrity in high-density layouts.

What output interface options does the LTC2230IUP#PBF provide, and how are they selected?

The LTC2230IUP#PBF supports LVDS, full-rate CMOS, and two demultiplexed CMOS modes (interleaved or simultaneous update), selected using the LVDS and MODE pins. LVDS mode (LVDS = VDD) gives differential 10-bit outputs at 170 MHz. CMOS modes are set by biasing LVDS to 0 V (full-rate), 1/3VDD (simultaneous demux), or 2/3VDD (interleaved demux), with output format (offset binary/2's complement) controlled separately by MODE.

Is the LTC2230IUP#PBF pin-compatible with other devices in the LTC223x family?

Yes - the LTC2230IUP#PBF shares identical 64-pin QFN packaging, pinout, and footprint with LTC2231IUP#PBF (135 Msps), LTC2220IUP#PBF (12-bit, 170 Msps), and LTC2221IUP#PBF (12-bit, 135 Msps). This enables hardware scalability across sample rate and resolution requirements without PCB redesign, provided power delivery and layout constraints accommodate the specific variant's current draw and thermal profile.