Analog Devices Inc. LTC2324HUKG-12#PBF

Overview

LTC2324HUKG-12#PBF from Analog Devices is a quad, 12-bit + sign successive approximation register (SAR) analog-to-digital converter with simultaneous sampling, 2 Msps per channel throughput, 78.5 dB SNR at 500 kHz, ±0.5 LSB typical INL, and integrated 4.096 V temperature-compensated reference - designed for high-speed data acquisition in multiphase motor control and optical networking systems.

For engineers reviewing the LTC2324HUKG-12#PBF datasheet, LTC2324HUKG-12#PBF pinout, LTC2324HUKG-12#PBF application, or LTC2324HUKG-12#PBF equivalent, this page delivers verified specifications, thermal-grade validation (–40°C to 125°C), QFN-52 package details, SPI-compatible CMOS/LVDS interface options, and real-world application context for precision timing-critical ADC selection.

Technical Context

The LTC2324HUKG-12#PBF implements four independent SAR ADC cores with true differential inputs, each featuring a dedicated sample-and-hold and internal reference buffer (REFOUT1–4). It supports simultaneous sampling across all channels with aperture jitter of 1 ps RMS and matching ≤500 ps, enabling coherent multi-channel signal capture without inter-channel skew.

Its dual-mode digital interface (CMOS or LVDS, SDR/DDR configurable) operates with OVDD from 1.71 V to 2.63 V and supports up to 110 MHz SCK in CMOS SDR mode. The device integrates a low-drift (≤20 ppm/°C) 4.096 V reference and offers nap/sleep modes reducing power to 26 µW - critical for thermally constrained industrial environments.

Key Specifications

Pinout & Package

Package: 52-lead (7 mm × 8 mm) plastic QFN with exposed pad (Pin 53 = GND), RoHS-compliant, lead-free finish. Thermal resistance θ_JA = 31°C/W; 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 ADS8924BIRGER and AD7606C-16, the LTC2324HUKG-12#PBF uniquely combines simultaneous 2 Msps sampling, integrated 4.096 V reference, –40°C to 125°C operation, and LVDS/CMOS interface flexibility - making it optimal for thermally demanding, phase-coherent, high-throughput applications where reference stability and channel alignment are non-negotiable.

Availability

LTC2324HUKG-12#PBF is available at Aetrix Electronics and suitable for multiphase motor control, optical network monitoring, and high-speed data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC2324HUKG-12#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 semiconductors, serving industrial, automotive, communications, and healthcare markets.

The LTC2324HUKG-12#PBF belongs to the Linear Technology SAR ADC product line, engineered for precision, speed, and thermal resilience in mission-critical data acquisition - specifically targeting applications demanding simultaneous multi-channel sampling with minimal latency and drift.

FAQ

What is the maximum operating temperature rating for the LTC2324HUKG-12#PBF?

The LTC2324HUKG-12#PBF is rated for operation from –40°C to +125°C, confirmed by its "H" grade designation in the order information table. This extended temperature range is validated across all electrical specifications including INL, SNR, and reference accuracy, making it suitable for under-hood automotive and industrial motor drive environments where ambient temperatures exceed 105°C.

Does the LTC2324HUKG-12#PBF support simultaneous sampling across all four channels?

Yes, the LTC2324HUKG-12#PBF features four independent SAR ADC cores with synchronized sample-and-hold circuits, enabling true simultaneous sampling. Aperture delay matching is guaranteed ≤500 ps across all channels, ensuring phase-coherent acquisition required for vector control and power quality analysis - a key differentiator versus time-interleaved or multiplexed alternatives.

Can the internal reference of the LTC2324HUKG-12#PBF be disabled for use with an external reference?

Yes, the internal reference buffers (REFOUT1–4) can be disabled by grounding the REFBUFEN pin (Pin 43). When disabled, external references in the 1.25 V to 5 V range may be applied to REF (Pin 8) or individual REFOUT pins. The device retains full 12-bit no-missing-codes performance and specified SNR when using a low-noise external reference.

What digital interface options does the LTC2324HUKG-12#PBF support?

The LTC2324HUKG-12#PBF supports both CMOS and LVDS serial interfaces, selected via the CMOS/LVDS pin (Pin 25). It further supports Single Data Rate (SDR) or Double Data Rate (DDR) modes via the SDR/DDR pin (Pin 23). LVDS mode enables noise-immune transmission over longer traces, while CMOS mode reduces power consumption - both operate with OVDD from 1.71 V to 2.63 V.

How is power managed in the LTC2324HUKG-12#PBF during idle periods?

The LTC2324HUKG-12#PBF provides two low-power states: Nap mode (5.3–6.4 mA total supply current) after conversion completes, and Sleep mode (20–90 µA total) for extended inactivity. Both modes retain register settings and reference state, enabling wake-up in <50 ms. These modes reduce average power in burst-acquisition systems such as condition-monitoring sensors without sacrificing startup readiness.