Analog Devices Inc. LTC2324HUKG-14#PBF

Overview

LTC2324HUKG-14#PBF from Analog Devices is a quad, 14-bit + sign successive approximation register (SAR) analog-to-digital converter with simultaneous sampling across all four channels at 2 Msps per channel. It features true differential inputs (±4.096 V range), integrated low-drift 4.096 V reference (20 ppm/°C max), and supports both CMOS and LVDS serial interfaces. It operates from a single 3.3 V or 5 V supply and delivers 81 dB SNR and ±1 LSB INL typical - ideal for high-fidelity data acquisition in harsh thermal environments.

For engineers reviewing the LTC2324HUKG-14#PBF datasheet, LTC2324HUKG-14#PBF pinout, LTC2324HUKG-14#PBF application, or LTC2324HUKG-14#PBF equivalent, key selection considerations include guaranteed operation to 125°C, simultaneous 4-channel sampling with <500 ps aperture matching, LVDS/CMOS interface flexibility, internal reference buffer enable/disable control, and QFN-52 package thermal performance for high-density PCB layouts.

Technical Context

The LTC2324HUKG-14#PBF implements four independent SAR ADC cores sharing a common reference architecture and synchronized conversion timing via a single CNV input. Each channel uses a dedicated track-and-hold amplifier with 55 MHz –3 dB input bandwidth and <1 ps RMS aperture jitter, enabling accurate undersampling of RF and IF signals up to 1 MHz.

Its digital interface supports SDR or DDR modes with configurable CMOS/LVDS I/O (OVDD = 1.71–2.63 V), and includes dedicated SDOx outputs per channel plus CLKOUT for skew-matched data capture. The REFBUFEN pin enables full control over internal reference buffers (REFOUT1–4), allowing external reference use while maintaining channel-to-channel isolation.

Key Specifications

Pinout & Package

Package: 52-lead (7 mm × 8 mm) plastic QFN with exposed thermal pad (Pin 53 = 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 quad SAR ADC applications.

Compared with AD7606C-16 and ADS8684, the LTC2324HUKG-14#PBF uniquely combines 2 Msps simultaneous sampling, LVDS/CMOS interface adaptability, and guaranteed 125°C operation - making it optimal for high-dynamic-range, thermally demanding, multi-channel real-time systems where timing coherence and EMI resilience are non-negotiable.

Availability

LTC2324HUKG-14#PBF is available at Aetrix Electronics and suitable for high-speed motor control, optical network monitoring, and industrial data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC2324HUKG-14#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. is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.

The LTC2324HUKG-14#PBF belongs to Analog Devices' high-speed precision SAR ADC product line, designed specifically for applications demanding simultaneous multi-channel sampling, wide dynamic range, and robust operation in extreme thermal environments.

FAQ

What is the maximum operating temperature rating for the LTC2324HUKG-14#PBF?

The LTC2324HUKG-14#PBF is rated for continuous operation from –40°C to +125°C, with guaranteed specifications over this full range. This H-grade qualification makes it suitable for under-hood automotive, downhole drilling tools, and industrial motor drives where ambient temperatures exceed standard commercial or industrial grades.

Does the LTC2324HUKG-14#PBF require an external reference, or does it include an internal one?

The LTC2324HUKG-14#PBF integrates a low-drift, temperature-compensated 4.096 V reference with 20 ppm/°C max drift and individual buffered outputs (REFOUT1–4). An external reference can be used by grounding REFBUFEN and driving any REFOUTx pin within 1.25–5 V - but the internal reference eliminates external components for most precision applications.

How many analog input channels does the LTC2324HUKG-14#PBF support, and are they sampled simultaneously?

The LTC2324HUKG-14#PBF supports four fully differential analog input channels (AIN1± through AIN4±), all sampled simultaneously using a single CNV pulse. This architecture ensures <500 ps inter-channel aperture matching - critical for phase-sensitive measurements in motor control and communications systems.

What digital interface options does the LTC2324HUKG-14#PBF support, and how are they configured?

The LTC2324HUKG-14#PBF supports both CMOS and LVDS serial interfaces, selected via the CMOS/LVDS pin (Pin 25). It also supports Single Data Rate (SDR) or Double Data Rate (DDR) modes controlled by the SDR/DDR pin (Pin 23). All four channels have independent SDO outputs, enabling parallel readout without multiplexing delays.

Can the LTC2324HUKG-14#PBF operate from a 3.3 V supply, and what are the associated power consumption figures?

Yes, the LTC2324HUKG-14#PBF operates from a single 3.3 V or 5 V VDD supply. At 3.3 V and 2 Msps per channel, typical power dissipation is 102 mW total (25.5 mW per channel). In nap mode, it draws 18 mW; in sleep mode, just 20 µW - enabling energy-efficient burst acquisition in portable or remote sensing systems.