Analog Devices Inc. LTC2325HUKG-12#TRPBF

Overview

LTC2325HUKG-12#TRPBF from Analog Devices is a quad, 12-bit + sign successive approximation register (SAR) analog-to-digital converter with simultaneous sampling, 5 Msps per channel throughput, ±0.5 LSB typical INL, 77 dB SNR at 2.2 MHz, and integrated 4.096 V temperature-compensated reference. It operates from single 3.3 V or 5 V supply and supports CMOS or LVDS serial interface for high-speed data acquisition in motor control and optical networking.

For engineers reviewing the LTC2325HUKG-12#TRPBF datasheet, LTC2325HUKG-12#TRPBF pinout, LTC2325HUKG-12#TRPBF application, or LTC2325HUKG-12#TRPBF equivalent, key selection criteria include guaranteed 12-bit no-missing-codes operation over –40°C to 125°C, 8 V_P-P differential input range with wide common-mode rejection, low-power nap/sleep modes (26 µW), and 52-lead QFN package with four independent REFOUT pins.

Technical Context

The LTC2325HUKG-12#TRPBF implements four independent SAR ADC cores with true differential inputs, each featuring 1-cycle latency and simultaneous sampling triggered by a single CNV pulse. Its internal reference architecture provides four buffered 4.096 V outputs (REFOUT1–4), individually decoupled and disableable via REFBUFEN for external reference flexibility.

It supports dual I/O modes: CMOS (1.8 V–2.5 V OVDD) and LVDS (2.5 V OVDD), with selectable SDR/DDR timing and skew-matched CLKOUT for FPGA interfacing. The device achieves 102 dB CMRR at 2.2 MHz and maintains 77 dB SNR across its full –40°C to 125°C operating range.

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 ADS8924BRGER and AD7606C-16BSTZ, the LTC2325HUKG-12#TRPBF uniquely combines 5 Msps simultaneous sampling, LVDS/CMOS flexibility, four independent reference buffers, and full 125°C qualification-making it optimal for thermally demanding, high-throughput multi-channel acquisition where timing coherence and interface robustness are critical.

Availability

LTC2325HUKG-12#TRPBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical networking equipment, and multiphase motor control applications requiring stable component supply across extended temperature ranges.

Supply support for LTC2325HUKG-12#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 technologies, serving industrial, automotive, communications, and healthcare markets.

The LTC2325 family was designed specifically for high-speed, multi-channel precision data acquisition in thermally challenging environments-emphasizing simultaneous sampling integrity, low-noise conversion, and flexible digital interfacing without sacrificing ruggedness.

FAQ

What is the maximum operating temperature of the LTC2325HUKG-12#TRPBF?

The LTC2325HUKG-12#TRPBF is rated for continuous operation from –40°C to +125°C, as confirmed by its H-grade temperature specification in the official Analog Devices order information table. This rating applies across all electrical parameters including INL, SNR, and reference stability, making it suitable for under-hood automotive and industrial inverter applications where ambient temperatures exceed 105°C.

Does the LTC2325HUKG-12#TRPBF require an external reference?

No, the LTC2325HUKG-12#TRPBF integrates a low-drift 4.096 V temperature-compensated reference with 20 ppm/°C max drift and four buffered outputs (REFOUT1–4). External references are optional and only needed when custom voltage levels (1.25 V–5 V) or higher accuracy than the internal reference provides are required-enabled by grounding REFBUFEN.

How does the LTC2325HUKG-12#TRPBF support simultaneous sampling across four channels?

The LTC2325HUKG-12#TRPBF uses a single CNV input to initiate acquisition on all four SAR ADC cores at the exact same instant. Its internal design guarantees <500 ps aperture delay matching between channels, ensuring phase-coherent sampling essential for vector measurements in motor control and power quality analysis.

What digital interface options does the LTC2325HUKG-12#TRPBF support?

The LTC2325HUKG-12#TRPBF 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) timing via the SDR/DDR pin (Pin 23), enabling flexible FPGA or ASIC interfacing with either 105 MHz SCK (SDR) or 52.5 MHz SCK (DDR) for reduced timing constraints.

What power-saving modes are available on the LTC2325HUKG-12#TRPBF?

The LTC2325HUKG-12#TRPBF offers two low-power states: Nap mode (6.4 mA total supply current) entered after conversion completion, and Sleep mode (20 µA total current) for extended idle periods. Both modes retain configuration and reference state, allowing wake-up in <50 ms without reinitialization-ideal for burst-mode acquisition in portable test equipment.