Analog Devices Inc. LTC2324IUKG-14#TRPBF

Overview

LTC2324IUKG-14#TRPBF 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, differential inputs up to ±4.096 V, and integrated 2.048 V / 4.096 V temperature-compensated reference. It operates from single 3.3 V or 5 V supply, delivers 81 dB SNR at 500 kHz input, and supports CMOS or LVDS serial interface - ideal for high-speed data acquisition in multiphase motor control systems.

For engineers reviewing the LTC2324IUKG-14#TRPBF datasheet, LTC2324IUKG-14#TRPBF pinout, LTC2324IUKG-14#TRPBF application, or LTC2324IUKG-14#TRPBF equivalent, key selection considerations include guaranteed 14-bit no-missing-codes performance, simultaneous sampling timing matching (<500 ps aperture delay matching), internal reference drift ≤20 ppm/°C, and operation over –40°C to +85°C industrial temperature range.

Technical Context

The LTC2324IUKG-14#TRPBF implements four independent SAR ADC cores sharing a common reference architecture and synchronized CNV-driven acquisition. Each channel features true differential input with 8 V_P-P full-scale range and wide common-mode input (0 V to V_DD), enabling direct interfacing with instrumentation amplifiers or isolated signal chains without level-shifting.

Its digital interface supports configurable I/O modes (CMOS/LVDS/low-power LVDS) and data rates (SDR/DDR), with dedicated SDOx pins per channel and skew-matched CLKOUT for FPGA-based capture. Power management includes nap mode (6.4 mA) and sleep mode (20 µA), reducing total dissipation to 40 mW per channel at full throughput.

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-channel, high-speed SAR ADC applications.

Compared with AD7606C-16 and ADS8684, the LTC2324IUKG-14#TRPBF uniquely combines 2 Msps simultaneous sampling, LVDS/CMOS interface flexibility, and on-chip 4.096 V reference with 20 ppm/°C drift - making it optimal for space-constrained, high-fidelity industrial data acquisition where timing coherence and noise immunity are critical.

Availability

LTC2324IUKG-14#TRPBF is available at Aetrix Electronics and suitable for multiphase motor control, optical networking monitoring, and high-speed data acquisition systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for LTC2324IUKG-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.

The LTC2324IUKG-14#TRPBF belongs to Analog Devices' high-speed precision SAR ADC product line, designed specifically for applications demanding simultaneous multi-channel sampling, low noise, and robust operation in harsh industrial environments.

FAQ

What is the operating temperature range for the LTC2324IUKG-14#TRPBF?

The LTC2324IUKG-14#TRPBF is rated for industrial operation from –40°C to +85°C. This grade (denoted by "I" in the part number) is validated across the full range for parameters including INL (±2.5 LSB), SNR (75 dB min), and reference drift (≤20 ppm/°C), ensuring reliability in motor drives and outdoor telecom infrastructure.

Does the LTC2324IUKG-14#TRPBF require an external reference?

No, the LTC2324IUKG-14#TRPBF includes an onboard temperature-compensated reference generating either 2.048 V or 4.096 V with ≤20 ppm/°C drift. REFBUFEN (Pin 43) can disable internal buffers to allow external reference injection (1.25–5 V) on REFOUT1–4 pins - but external reference is optional, not required.

How does the simultaneous sampling architecture work in the LTC2324IUKG-14#TRPBF?

The LTC2324IUKG-14#TRPBF uses a single CNV input to trigger identical acquisition windows across all four SAR ADC cores. Aperture delay matching is guaranteed ≤500 ps, ensuring phase-coherent sampling critical for vector measurements. Conversion proceeds independently per channel after CNV fall, with data output on dedicated SDOx lines.

Can the LTC2324IUKG-14#TRPBF interface directly with an FPGA using LVDS?

Yes - when CMOS/LVDS (Pin 25) is tied to OVDD, the LTC2324IUKG-14#TRPBF enables LVDS mode with differential SDOA±–SDOD± and CLKOUT± outputs. Each pair requires 100 Ω differential termination at the FPGA receiver. SCK± (Pins 41/42) must also be differentially driven for full LVDS compliance.

What power savings does the nap mode provide for the LTC2324IUKG-14#TRPBF?

In nap mode, the LTC2324IUKG-14#TRPBF reduces supply current to 5.3–6.4 mA (IVDD) while retaining reference buffer operation and fast wake-up (<100 ns). This cuts power dissipation to ~18–21 mW at 3.3 V or ~27–32 mW at 5 V - ideal for burst-mode acquisition in portable test instruments.