Analog Devices Inc. LTC2323CUFD-12#TRPBF

Overview

LTC2323CUFD-12#TRPBF from Analog Devices is a dual-channel, 12-bit + sign successive approximation register (SAR) analog-to-digital converter with differential inputs, 5 Msps per channel throughput, ±0.5 LSB typical INL, 73 dB SNR at 2 MHz input, and wide 0 V to VDD common mode input range. It operates from single 3.3 V or 5 V supply, integrates low-drift 2.048 V/4.096 V internal reference, and supports CMOS or LVDS serial interface - ideal for high-speed data acquisition in optical networking and motor control systems.

For engineers reviewing the LTC2323CUFD-12#TRPBF datasheet, LTC2323CUFD-12#TRPBF pinout, LTC2323CUFD-12#TRPBF application, or LTC2323CUFD-12#TRPBF equivalent, key selection considerations include guaranteed 12-bit no-missing-codes performance, one-cycle latency, 5 Msps dual-channel sampling, LVDS/CMOS I/O flexibility, and operation up to 125°C - all in a compact 28-lead 4 mm × 5 mm QFN package.

Technical Context

The LTC2323CUFD-12#TRPBF implements a dual SAR architecture with independent sample-and-hold circuits per channel, enabling simultaneous sampling and one-cycle latency conversion. Its differential input stage accepts ±REFOUT full-scale range (±4.096 V or ±2.048 V) while supporting common mode voltages from 0 V to VDD - eliminating need for external level-shifting in bipolar signal chains.

It features a temperature-compensated internal reference (20 ppm/°C max drift), programmable I/O voltage support (1.8 V to 2.5 V), and dual-mode digital interface: CMOS (single-ended SDO/CLKOUT/SCK) or LVDS (differential SDO1±/SDO2±/CLKOUT±/SCK±), with dedicated CMOS/LVDS pin control and low-power LVDS option.

Key Specifications

Pinout & Package

Package: 28-lead (4 mm × 5 mm) QFN with exposed pad (Pin 29), RoHS-compliant, moisture-sensitive level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD7322BRUZ and ADS8862IDRCT, the LTC2323CUFD-12#TRPBF uniquely delivers dual 5 Msps sampling, integrated flexible reference, LVDS/CMOS interface, and 0–VDD common mode range - making it optimal for time-critical, noise-immune, space-constrained applications where channel correlation and low-latency response are essential.

Availability

LTC2323CUFD-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, extended temperature operation, and long-term production continuity.

Supply support for LTC2323CUFD-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets with precision data conversion and power management solutions.

The LTC2323CUFD-12#TRPBF belongs to Analog Devices' high-speed precision SAR ADC product line, designed specifically for applications demanding simultaneous sampling, low latency, excellent dynamic performance, and robust operation in harsh thermal environments.

FAQ

What is the maximum operating temperature for LTC2323CUFD-12#TRPBF?

The LTC2323CUFD-12#TRPBF is rated for operation from –40°C to +125°C (H-grade), with full electrical specifications guaranteed across this range. This makes LTC2323CUFD-12#TRPBF suitable for under-hood automotive modules, industrial drives, and downhole oilfield equipment where ambient temperatures exceed standard commercial limits.

Does LTC2323CUFD-12#TRPBF require an external reference?

No, LTC2323CUFD-12#TRPBF includes an internal, low-drift (20 ppm/°C max) reference buffer that outputs either 2.048 V or 4.096 V. The internal reference can be disabled by grounding the REFINT pin, allowing use of an external reference between 1.25 V and VDD - giving designers flexibility for metrology-grade accuracy or cost-optimized designs.

How does the CMOS/LVDS pin (Pin 25) affect LTC2323CUFD-12#TRPBF interface operation?

The CMOS/LVDS pin on LTC2323CUFD-12#TRPBF selects the digital interface mode: grounded for CMOS (single-ended SDO/CLKOUT/SCK), tied to OVDD for standard LVDS, or left floating for low-power LVDS. This setting determines driver strength, termination requirements, and pin usage - e.g., SDO1– and CLKOUT– become active only in LVDS modes, and must be terminated with 100 Ω differential loads.

Can LTC2323CUFD-12#TRPBF accept single-ended input signals?

Yes, LTC2323CUFD-12#TRPBF supports pseudo-differential unipolar and bipolar configurations without hardware changes. For single-ended signals, connect the reference (e.g., ground or mid-supply) to one AIN pin and the signal to the other - leveraging the device's 85 dB CMRR and 0–VDD common mode range to reject noise and simplify front-end design.

What power-saving modes does LTC2323CUFD-12#TRPBF support?

LTC2323CUFD-12#TRPBF offers three low-power states: normal (38 mW/ch @ 5 V), nap mode (2.85–5 mA total supply current after conversion), and sleep mode (1–5 µA). Sleep mode retains register settings and reference state, enabling wake-up in <10 ms - ideal for battery-powered remote sensors and intermittent acquisition systems using LTC2323CUFD-12#TRPBF.