Analog Devices Inc. LTC2324HUKG-14#TRPBF

Overview

LTC2324HUKG-14#TRPBF from Analog Devices is a quad-channel, 14-bit + sign successive approximation register (SAR) analog-to-digital converter with simultaneous sampling, 2 Msps per channel throughput, ±1 LSB typical INL, 81 dB SNR at 500 kHz, and operation up to 125°C. It features true differential inputs with 8 V_P-P range, integrated 4.096 V temperature-compensated reference, and CMOS/LVDS SPI-compatible serial interface - ideal for high-speed data acquisition in multiphase motor control and optical networking.

For engineers reviewing the LTC2324HUKG-14#TRPBF datasheet, LTC2324HUKG-14#TRPBF pinout, LTC2324HUKG-14#TRPBF application, or LTC2324HUKG-14#TRPBF equivalent, this page delivers verified technical context, exact package mapping (52-lead 7 mm × 8 mm QFN), confirmed pin functions across CMOS/LVDS modes, real-world application cards, and two validated alternative parts with documented functional and application differences.

Technical Context

The LTC2324HUKG-14#TRPBF implements four independent SAR ADC cores with synchronized sample-and-hold circuits enabling true simultaneous sampling across all channels. Its internal 4.096 V reference buffer (20 ppm/°C max drift) supports unbuffered external reference override via REFBUFEN control.

Digital interface flexibility includes selectable CMOS (1.8 V–2.5 V OVDD) or LVDS (2.5 V OVDD) I/O with SDR/DDR clocking modes, and dedicated SDOx/CLKOUT outputs per channel for FPGA interfacing without bus contention. Aperture jitter is 1 ps RMS, and conversion time is 220 ns with no latency.

Key Specifications

Pinout & Package

52-lead plastic QFN (7 mm × 8 mm), exposed pad (Pin 53) soldered to PCB ground plane for thermal and electrical integrity. Pin functions vary by CMOS/LVDS mode selection (CMOS/LVDS pin = GND or OVDD).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD7606C-16 and ADS8684, the LTC2324HUKG-14#TRPBF uniquely combines 2 Msps simultaneous 4-channel sampling, LVDS/CMOS interface configurability, and on-chip 4.096 V reference buffers - making it optimal for FPGA-based high-speed instrumentation where timing fidelity and interface adaptability are critical.

Availability

LTC2324HUKG-14#TRPBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical networking modules, and multiphase motor control designs requiring stable component supply across extended temperature ranges.

Supply support for LTC2324HUKG-14#TRPBF 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 LTC2324 family is designed for demanding high-speed, high-accuracy data acquisition in harsh environments - emphasizing simultaneous sampling integrity, low power in sleep modes, and flexible digital interfacing for FPGA and ASIC integration.

FAQ

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

The LTC2324HUKG-14#TRPBF is rated for operation from –40°C to +125°C, meeting the H-grade specification. This extended temperature range is validated across all key parameters including INL (±2.5 LSB), SNR (75 dB min), and reference stability (20 ppm/°C max), making it suitable for under-hood automotive and industrial control applications where ambient temperatures exceed 105°C.

Does the LTC2324HUKG-14#TRPBF support external reference inputs?

Yes, the LTC2324HUKG-14#TRPBF supports external references via REFOUT1–4 pins. When REFBUFEN is grounded, the internal buffers are disabled, allowing an external reference (1.25 V–5 V) to drive any or all REFOUTx pins. This enables shared reference architecture across multiple ADCs or precision biasing for specific input ranges, while maintaining full 14-bit performance and no missing codes.

How does the SDR/DDR mode affect data throughput on the LTC2324HUKG-14#TRPBF?

In SDR mode (SDR/DDR = GND), the LTC2324HUKG-14#TRPBF shifts one bit per SCK falling edge, requiring 16 clocks to read a 14-bit result. In DDR mode (SDR/DDR = OVDD), it shifts on both edges, halving the required clock cycles per conversion - enabling 110 MHz SCK operation while maintaining 2 Msps/channel throughput and reducing FPGA clock resource usage.

Can the LTC2324HUKG-14#TRPBF operate with a 3.3 V supply?

Yes, the LTC2324HUKG-14#TRPBF operates from a single 3.3 V supply (VDD = 3.13 V to 3.47 V). At 3.3 V, it delivers 2 Msps/channel with 81 dB SNR and consumes 102 mW total (25.5 mW per channel), while retaining full specification compliance including ±1 LSB INL and guaranteed no missing codes across –40°C to 125°C.

What is the purpose of the exposed thermal pad (Pin 53) on the LTC2324HUKG-14#TRPBF?

The exposed thermal pad (Pin 53) on the LTC2324HUKG-14#TRPBF must be soldered directly to a solid PCB ground plane. It serves dual roles: lowering thermal resistance (θ_JA = 31°C/W) to sustain 125°C operation under full load, and providing a low-inductance return path for analog and digital grounds - critical for maintaining 81 dB SNR and 102 dB CMRR performance in high-frequency applications.