Analog Devices Inc. LTC2320HUKG-14#TRPBF

Overview

LTC2320HUKG-14#TRPBF from Analog Devices (formerly Linear Technology) is a high-speed, octal, 14-bit + sign SAR ADC with simultaneous sampling, differential inputs, and integrated temperature-compensated reference. It delivers 1.5 Msps per channel, ±1 LSB INL (typ), 81 dB SNR at 500 kHz, and operates from –40°C to 125°C - ideal for precision industrial data acquisition and motor control systems requiring wide dynamic range and high common-mode rejection.

For engineers reviewing the LTC2320HUKG-14#TRPBF datasheet, LTC2320HUKG-14#TRPBF pinout, LTC2320HUKG-14#TRPBF application, or LTC2320HUKG-14#TRPBF equivalent, key selection considerations include guaranteed 14-bit no-missing-codes operation, 52-lead QFN package with true differential input channels, LVDS/CMOS serial interface flexibility, internal 4.096 V reference with 20 ppm/°C drift, and thermal grade support up to 125°C ambient.

Technical Context

The LTC2320HUKG-14#TRPBF implements an 8-channel successive approximation register (SAR) architecture with fully independent sample-and-hold circuits enabling true simultaneous sampling across all eight differential inputs. Each channel features ±REFOUTx input range (±4.096 V or ±2.048 V), 55 MHz –3 dB input bandwidth, and aperture jitter of 1 ps RMS.

It supports dual-domain power supplies: VDD (3.3 V or 5 V) for analog core and OVDD (1.71–2.63 V) for digital I/O, with configurable CMOS/LVDS/low-power LVDS output modes and SDR/DDR serial timing. Internal reference buffers (REFOUT1–4) are individually decoupled and disableable via REFBUFEN for external reference use.

Key Specifications

Pinout & Package

The LTC2320HUKG-14#TRPBF is housed in a 52-lead (7 mm × 8 mm) plastic QFN package with exposed thermal pad (Pin 53) soldered to PCB ground. Pin functions include eight differential analog inputs (AIN1± through AIN8±), four independent reference buffer outputs (REFOUT1–4), eight CMOS or LVDS serial data outputs (SDO1–SDO8 or SDOA± through SDOC±), plus configurable control pins (CNV, SCK, SDR/DDR, CMOS/LVDS, REFBUFEN, CLKOUTEN).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD7606C-16 and ADS8688, the LTC2320HUKG-14#TRPBF uniquely combines 1.5 Msps simultaneous sampling, integrated low-drift reference, LVDS/CMOS interface flexibility, and extended temperature operation - making it optimal for thermally harsh, high-coherence multi-signal acquisition.

Availability

LTC2320HUKG-14#TRPBF is available at Aetrix Electronics and suitable for high-reliability industrial automation, aerospace telemetry, and energy infrastructure applications requiring stable component supply, long-term lifecycle support, and guaranteed 125°C operation.

Supply support for LTC2320HUKG-14#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 LTC2320 family was designed specifically for high-speed, high-accuracy multichannel data acquisition in thermally demanding environments - emphasizing simultaneous sampling integrity, low power in active/idle states, and robust reference stability across temperature.

FAQ

What is the maximum operating temperature rating for the LTC2320HUKG-14#TRPBF?

The LTC2320HUKG-14#TRPBF is rated for operation from –40°C to +125°C, meeting the H-grade specification. This extended temperature range is validated per the Absolute Maximum Ratings table and confirmed in the Electrical Characteristics section, where parameters like INL, SNR, and reference drift are guaranteed over this full range.

Does the LTC2320HUKG-14#TRPBF support both CMOS and LVDS digital interfaces?

Yes, the LTC2320HUKG-14#TRPBF supports CMOS, LVDS, and low-power LVDS I/O modes via the CMOS/LVDS pin (Pin 25). When grounded, it enables CMOS outputs (SDO1–SDO8); when tied to OVDD, it activates LVDS differential pairs (SDOA±–SDOC±); floating selects low-power LVDS mode - all configurable without changing hardware layout.

How many independent reference outputs does the LTC2320HUKG-14#TRPBF provide?

The LTC2320HUKG-14#TRPBF provides four independent reference buffer outputs (REFOUT1, REFOUT2, REFOUT3, REFOUT4), each nominally 4.096 V (or 2.048 V), assigned to two ADC channels per buffer. These can be disabled via REFBUFEN to accept external references - enabling flexible system-level reference architecture.

What is the aperture jitter specification for the LTC2320HUKG-14#TRPBF?

The LTC2320HUKG-14#TRPBF has an aperture jitter of 1 ps RMS, as specified in the Dynamic Accuracy section. This ultra-low jitter directly contributes to its 81 dB SNR at 500 kHz and supports high-resolution digitization of fast-changing signals without significant noise floor degradation.

Can the LTC2320HUKG-14#TRPBF perform true simultaneous sampling across all eight channels?

Yes, the LTC2320HUKG-14#TRPBF integrates eight independent sample-and-hold circuits, enabling true simultaneous sampling across all eight differential input channels (AIN1± through AIN8±). This is confirmed in the Features list ("Eight Simultaneously Sampling Channels") and the Functional Block Diagram, ensuring zero inter-channel skew for phase-critical measurements.