Analog Devices Inc. LTC2374CUH-16#TRPBF

Overview

LTC2374CUH-16#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 1.6 Msps, 8-channel successive approximation register (SAR) analog-to-digital converter with ±1 LSB INL (max), 96 dB SNR (fully differential), and integrated 2.048 V temperature-compensated reference. It operates from a single 5 V supply, supports fully differential (±4.096 V), pseudo-differential unipolar (0–4.096 V), and bipolar (±2.048 V) input ranges, and targets high-precision industrial data acquisition systems.

For engineers reviewing the LTC2374CUH-16#TRPBF datasheet, LTC2374CUH-16#TRPBF pinout, LTC2374CUH-16#TRPBF application, or LTC2374CUH-16#TRPBF equivalent, key selection criteria include guaranteed no missing codes at 16 bits, programmable sequencer depth of 16, SPI-compatible serial interface with 1.8–5 V I/O compatibility, low 55 mW typical power dissipation at full throughput, and QFN-32 package thermal performance for compact instrumentation designs.

Technical Context

The LTC2374CUH-16#TRPBF implements a true SAR architecture with no pipeline delay or cycle latency, enabling deterministic conversion timing critical for closed-loop control. Its highly configurable 8-channel multiplexer delivers ≤ –110 dB channel-to-channel crosstalk and supports per-channel input range selection via configuration registers.

Conversion is initiated by the CNV signal, with internal oscillator setting tCONV = 360–427 ns and tCYC = 625 ns minimum. The onboard reference buffer (REFBUF) provides 4.096 V output with 20 ppm/°C max drift and supports overdrive up to 5 V, while REFIN accepts 1.25–2.4 V external references for enhanced flexibility.

Key Specifications

Pinout & Package

Package: 32-lead 5 mm × 5 mm plastic QFN (UH package) with exposed pad soldered to PCB ground for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed, multi-channel SAR ADC applications.

Compared with AD7606C-16 and ADS8688IPWR, the LTC2374CUH-16#TRPBF delivers the highest throughput (1.6 Msps) and lowest aperture jitter (4 ps RMS) in its class, making it optimal for time-domain fidelity-critical applications like transient capture and closed-loop control, while maintaining competitive power efficiency at full speed.

Availability

LTC2374CUH-16#TRPBF is available at Aetrix Electronics and suitable for programmable logic controllers, industrial process control systems, and high-speed data acquisition requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant manufacturing.

Supply support for LTC2374CUH-16#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.

The LTC2374-16 product line was designed specifically for high-accuracy, multi-channel data acquisition in space-constrained, thermally demanding industrial environments-emphasizing low noise, deterministic timing, and integrated reference stability.

FAQ

What is the operating temperature range for the LTC2374CUH-16#TRPBF?

The LTC2374CUH-16#TRPBF is rated for 0°C to 70°C ambient operation, as indicated by the 'C' grade suffix in the part number. This commercial-grade specification ensures reliable performance in controlled-environment instrumentation and factory-floor control systems where ambient temperatures remain within this range. Full electrical specifications-including ±1 LSB INL and 96 dB SNR-are guaranteed across this interval.

Does the LTC2374CUH-16#TRPBF require an external reference?

No, the LTC2374CUH-16#TRPBF does not require an external reference. It integrates a low-drift 2.048 V temperature-compensated reference and a buffered 4.096 V output (REFBUF). However, it also supports external reference input (REFIN) from 1.25 V to 2.4 V for applications requiring metrological traceability or custom full-scale adjustment, with internal reference disabled when REFIN is active.

How does the programmable sequencer in the LTC2374CUH-16#TRPBF function?

The LTC2374CUH-16#TRPBF features a 16-deep programmable sequencer that autonomously cycles through up to 16 user-defined channel configurations-including input range (fully diff/pseudo-diff), gain, and averaging settings-without host processor intervention. Each sequence entry is loaded via SPI, and the sequencer advances automatically after each conversion, enabling efficient multi-channel acquisition in PLC and DAQ systems.

What package type and thermal characteristics does the LTC2374CUH-16#TRPBF use?

The LTC2374CUH-16#TRPBF uses a 32-lead 5 mm × 5 mm plastic QFN (UH package) with an exposed thermal pad that must be soldered to PCB ground. Its θJA is 44°C/W, enabling effective heat dissipation at 55 mW typical power consumption. This compact, thermally robust package supports high-density layouts in portable instrumentation and modular I/O systems.

Can the LTC2374CUH-16#TRPBF interface directly with 1.8 V logic systems?

Yes, the LTC2374CUH-16#TRPBF supports 1.8 V to 5 V digital I/O voltages via its OVDD supply pin. When OVDD = 1.8 V, all digital pins (SDO, SDI, SCK, RDL, BUSY) operate at compatible voltage levels, allowing direct connection to 1.8 V FPGAs or microcontrollers without level shifters-simplifying interface design and improving signal integrity in mixed-voltage systems.