Analog Devices Inc. LTC2286IUP#PBF

Overview

LTC2286IUP#PBF from Analog Devices (formerly Linear Technology) is a dual 10-bit, 25Msps low-noise analog-to-digital converter operating from a single 3V supply (2.7V–3.4V). It delivers 61.8dB SNR and 85dB SFDR at Nyquist, with 110dB channel isolation at 100MHz and 575MHz full-power bandwidth. Designed for high-fidelity signal digitization in portable instrumentation and spectral analysis systems.

For engineers reviewing the LTC2286IUP#PBF datasheet, LTC2286IUP#PBF pinout, LTC2286IUP#PBF application, or LTC2286IUP#PBF equivalent, key selection criteria include its 25Msps sample rate, dual-channel 10-bit resolution, integrated clock duty cycle stabilizer, flexible ±0.5V to ±1V input range, and 64-pin QFN package with exposed thermal pad.

Technical Context

The LTC2286IUP#PBF implements a six-stage CMOS pipelined ADC architecture per channel, achieving five-cycle pipeline latency. It supports independent or multiplexed digital output buses via MUX pin control and features separate analog (VDD) and digital output (OVDD) supplies for logic-level flexibility (0.5V–3.6V).

Each channel includes dedicated SENSE/VCMA/VCMB pins for programmable input range and common-mode bias, plus individual SHDN/OE controls enabling independent nap/shutdown modes. The internal 1.5V reference and clock duty cycle stabilizer operate across the full –40°C to +85°C industrial temperature range.

Key Specifications

Pinout & Package

64-pin (9mm × 9mm) plastic QFN package with exposed GND pad (Pin 65) requiring PCB soldering for thermal and electrical integrity. Pin count and layout match the LTC2288/LTC2287 family for board-level compatibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LTC2287IUP#PBF and AD9233BCPZ-25, the LTC2286IUP#PBF uniquely balances 25Msps dual-channel throughput, 61.8dB SNR, per-channel power control, and pin-compatible scalability within the LTC228x family-making it optimal for space-constrained, multi-signal acquisition where channel independence and thermal efficiency are critical.

Availability

LTC2286IUP#PBF is available at Aetrix Electronics and suitable for portable instrumentation, spectral analysis, medical ultrasound beamforming, and industrial process monitoring requiring stable component supply and long-term lifecycle support.

Supply support for LTC2286IUP#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 industrial, automotive, communications, and healthcare markets.

The LTC228x family-including LTC2286IUP#PBF-is designed for high-dynamic-range, low-power digitization in demanding imaging and communications systems where dual-channel synchronization, thermal efficiency, and DC accuracy are essential.

FAQ

What is the operating temperature range for the LTC2286IUP#PBF?

The LTC2286IUP#PBF is rated for industrial operation from –40°C to +85°C. This range is guaranteed for all specified AC and DC parameters including SNR, SFDR, INL, DNL, and power consumption-enabling reliable deployment in uncontrolled environments such as factory floors or field-deployable test equipment.

Does the LTC2286IUP#PBF support differential or single-ended analog inputs?

The LTC2286IUP#PBF supports both configurations. Its AINA+/AINA– and AINB+/AINB– inputs are optimized for differential drive, delivering best-in-class 61.8dB SNR and 85dB SFDR. Single-ended operation is possible but degrades harmonic distortion performance; the datasheet specifies reduced SFDR and increased THD under single-ended conditions.

How does the MODE pin affect output formatting and clock functionality in the LTC2286IUP#PBF?

The MODE pin on the LTC2286IUP#PBF selects both output data format (offset binary or 2's complement) and clock duty cycle stabilizer state. Ground = offset binary + stabilizer off; 1V (≈1/3 VDD) = offset binary + stabilizer on; 2V (≈2/3 VDD) = 2's complement + stabilizer on; VDD = 2's complement + stabilizer off-allowing runtime configuration without external logic.

Can the LTC2286IUP#PBF share a single digital output bus between both channels?

Yes-the LTC2286IUP#PBF includes a hardware MUX pin (Pin 21) that configures the device to route Channel A and Channel B data onto the DA[9:0]/OFA and DB[9:0]/OFB buses respectively (MUX = HIGH), or swap them (MUX = LOW). When CLKA, CLKB, and MUX are tied together, both channels time-multiplex onto one 10-bit bus-reducing PCB trace count and FPGA I/O usage.

What is the purpose of the exposed pad (Pin 65) on the LTC2286IUP#PBF QFN package?

The exposed pad (Pin 65) on the LTC2286IUP#PBF is electrically connected to GND and serves dual thermal and electrical functions. It must be soldered to a PCB copper pour for effective heat dissipation-critical for maintaining 150mW power operation within the 20°C/W θJA rating-and also reduces ground inductance to improve PSRR and dynamic performance.