Analog Devices Inc. LTC2184CUP#PBF

Overview

LTC2184CUP#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, dual-channel simultaneous-sampling analog-to-digital converter with 105Msps sampling rate, 76.7dB SNR, and 90dB SFDR. It operates from a single 1.8V supply, supports CMOS/DDR-CMOS/DDR-LVDS outputs, and targets high-fidelity signal digitization in cellular base stations and portable medical imaging systems.

For engineers reviewing the LTC2184CUP#PBF datasheet, LTC2184CUP#PBF pinout, LTC2184CUP#PBF application, or LTC2184CUP#PBF equivalent, key selection considerations include its 105Msps real-time throughput, differential input bandwidth up to 550MHz, low 0.09psRMS jitter, and configurable power modes (Nap: 16mW, Sleep: 1mW) for dynamic system-level power optimization.

Technical Context

The LTC2184CUP#PBF implements two independent 16-bit SAR-based ADC cores with synchronized sample-and-hold circuits, enabling true simultaneous sampling across channels. Its analog front-end supports 1VP-P to 2VP-P selectable input ranges and features 550MHz full-power bandwidth with ±2LSB INL and ±0.5LSB DNL over temperature.

Digital interface flexibility includes full-rate CMOS, DDR-CMOS, or DDR-LVDS output modes, with separate OVDD supply (1.1V–1.9V) allowing voltage scaling per interface standard. Configuration is handled via SPI port (CS/SCK/SDI/SDO) or parallel mode using PAR/SER pin selection.

Key Specifications

Pinout & Package

64-lead (9mm × 9mm) plastic QFN package with exposed thermal pad (Pin 65 = GND), RoHS-compliant lead-free finish. 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 dual-channel 16-bit ADC applications.

Compared with AD9269BCPZ-105 and LTC2284IUP#PBF, the LTC2184CUP#PBF uniquely combines parallel interface flexibility, ultra-low jitter (0.09psRMS), and integrated power management-making it optimal for space-constrained, thermally sensitive, and mixed-signal FPGA-based platforms requiring deterministic timing and low EMI.

Availability

LTC2184CUP#PBF is available at Aetrix Electronics and suitable for cellular infrastructure, software-defined radio, and portable medical imaging applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for LTC2184CUP#PBF 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 communications, industrial, automotive, and healthcare markets.

The LTC2184CUP#PBF belongs to ADI's high-speed precision ADC product line, designed specifically for demanding wideband digitization in communications infrastructure and instrumentation where simultaneous sampling, low jitter, and flexible interfacing are critical.

FAQ

What is the operating temperature range for the LTC2184CUP#PBF?

The LTC2184CUP#PBF is rated for commercial temperature operation from 0°C to +70°C, as indicated by the "C" grade suffix in its part number. This range is validated per the Absolute Maximum Ratings table and applies to all DC and AC specifications unless otherwise noted in the datasheet.

Does the LTC2184CUP#PBF support both differential and single-ended analog inputs?

Yes, the LTC2184CUP#PBF supports fully differential analog inputs on AIN1+/AIN1– and AIN2+/AIN2–, with common-mode bias provided by VCM1 and VCM2. Single-ended operation is not supported directly; however, single-ended clock drive is enabled by tying ENC– to GND, while analog inputs must remain differential for specified performance.

How does the clock duty cycle stabilizer function in the LTC2184CUP#PBF?

The clock duty cycle stabilizer in the LTC2184CUP#PBF corrects non-50% duty cycle encode clocks internally, ensuring consistent sampling window timing. It is enabled via SPI register configuration and allows full 105Msps operation with clocks having duty cycles from 30% to 70%, eliminating external duty-cycle correction circuitry.

What output interface options are available on the LTC2184CUP#PBF?

The LTC2184CUP#PBF supports three output interface modes: full-rate CMOS, double-data-rate CMOS, and double-data-rate LVDS. Mode selection is controlled via SPI registers or hardware pins, and OVDD (Pin 42) sets the CMOS output swing (1.2V–1.8V) or enables LVDS termination.

Can the LTC2184CUP#PBF be used with an external reference instead of the internal one?

Yes, the LTC2184CUP#PBF supports external reference operation via the SENSE pin (Pin 63), accepting 0.625V–1.3V reference voltages. When used, the internal reference is disabled, and gain error improves to ±0.8%FS with reduced drift (±10ppm/°C), enhancing accuracy in calibrated measurement systems.