Analog Devices Inc. LTC2341IUH-16#TRPBF

Overview

LTC2341IUH-16#TRPBF from Analog Devices (formerly Linear Technology) is a dual-channel, 16-bit, simultaneous-sampling SAR ADC with differential inputs, ±1.25LSB INL, 93.4dB SNR, and per-channel SoftSpan™ configurable input ranges (±4.096V, 0–4.096V, ±2.048V, 0–2.048V). It operates at 666ksps per channel with integrated 4.096V reference buffer and supports both CMOS (1.8–5V) and LVDS serial interfaces - ideal for high-precision industrial process control and medical imaging signal chains.

For engineers reviewing the LTC2341IUH-16#TRPBF datasheet, LTC2341IUH-16#TRPBF pinout, LTC2341IUH-16#TRPBF application, or LTC2341IUH-16#TRPBF equivalent, key selection criteria include guaranteed no-missing-codes at 16 bits, 105dB CMRR at 200Hz, rail-to-rail input overdrive tolerance, operation to 85°C, and pin-selectable digital I/O mode - all critical for noise-sensitive, multi-channel data acquisition systems requiring deterministic timing and wide common-mode flexibility.

Technical Context

The LTC2341IUH-16#TRPBF employs a successive approximation register architecture with two independent sample-and-hold circuits enabling true simultaneous sampling across channels. Its SoftSpan™ configuration logic allows per-conversion range selection via SPI register writes, supporting bipolar and unipolar modes without external gain/level-shifting circuitry.

Analog input stage features 0V to VDD common-mode range and 105dB typical CMRR, enabling direct interfacing with sensors, instrumentation amplifiers, or isolated signal sources. Digital interface flexibility includes pin-strapped LVDS or CMOS I/O with programmable lane count (1 or 2), internal conversion clock, and zero-cycle latency operation - eliminating external timing synchronization overhead.

Key Specifications

Pinout & Package

32-lead (5mm × 5mm) QFN package (UH) with exposed thermal pad (Pin 33 = GND). All 11 ground pins must be soldered to a solid ground plane for optimal noise immunity and thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel, 16-bit SAR ADC applications.

Compared with AD7606C-16 and ADS8688, the LTC2341IUH-16#TRPBF uniquely combines true simultaneous sampling, pin-selectable LVDS/CMOS, and per-conversion SoftSpan™ range reconfiguration - making it optimal for applications demanding channel coherence, interface adaptability, and dynamic input range optimization without layout changes.

Availability

LTC2341IUH-16#TRPBF is available at Aetrix Electronics and suitable for industrial process control, medical imaging, and high-speed data acquisition requiring stable component supply, extended temperature operation (–40°C to +85°C), and long-term production continuity.

Supply support for LTC2341IUH-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 LTC2341 family was designed for high-accuracy, multi-channel data acquisition systems requiring simultaneous sampling, flexible input ranges, and robust noise immunity - targeting applications where traditional single-channel or multiplexed ADCs introduce timing or matching errors.

FAQ

What is the maximum sampling rate of the LTC2341IUH-16#TRPBF in dual-channel mode?

The LTC2341IUH-16#TRPBF achieves 666 ksps per channel in dual-channel simultaneous sampling mode. When only one channel is enabled, the sampling rate increases to 1000 ksps - enabling higher throughput for single-sensor applications while maintaining full 16-bit resolution and no missing codes.

Does the LTC2341IUH-16#TRPBF require an external reference voltage?

No - the LTC2341IUH-16#TRPBF integrates a 2.048V bandgap reference (REFIN) and a buffered 4.096V output (REFBUF) with 5 ppm/°C typical drift. External overdrive is optional: REFIN accepts 1.25–2.2V references, and REFBUF accepts 2.5–5V when the internal buffer is disabled - giving designers flexibility without mandatory external components.

How does the SoftSpan™ feature work on the LTC2341IUH-16#TRPBF?

SoftSpan™ allows independent, per-conversion configuration of each channel's input range via SPI register writes - supporting ±4.096V, 0–4.096V, ±2.048V, or 0–2.048V spans. This eliminates external gain-switching circuitry and enables dynamic range adaptation within a single acquisition sequence - for example, measuring both high-voltage motor currents and low-level sensor offsets in the same frame.

What is the significance of the 105 dB CMRR specification for the LTC2341IUH-16#TRPBF?

The 105 dB CMRR (typical at 200 Hz) means the LTC2341IUH-16#TRPBF rejects common-mode interference - such as ground loops, EMI from switching power supplies, or noise on long sensor cables - at a ratio exceeding 300,000:1. This enables accurate differential measurements even in electrically noisy industrial environments without additional filtering or isolation.

Can the LTC2341IUH-16#TRPBF operate in LVDS mode with a 2.5 V OVDD supply?

Yes - the LTC2341IUH-16#TRPBF supports LVDS I/O mode with OVDD as low as 2.375 V. When LVDS/CMOS pin is tied to OVDD, the device configures its digital interface for LVDS signaling (differential 350 mV swing, 100 Ω termination), enabling high-speed, low-noise communication with FPGAs or ASICs while maintaining compatibility with standard 2.5 V logic domains.