Analog Devices Inc. LTC2313HTS8-14#TRMPBF

Overview

LTC2313HTS8-14#TRMPBF from Analog Devices (formerly Linear Technology) is a 14-bit, 2.5 Msps successive approximation register (SAR) analog-to-digital converter in an 8-lead TSOT-23 package, operating from a single 3V or 5V supply with integrated 2.048V/4.096V reference and reference buffer. It delivers 77 dB SINAD, –85 dB THD, and 77.5 dB SNR at 497 kHz input while consuming only 25 mW at 5V/2.5 Msps - ideal for high-speed, low-power data acquisition in automotive and industrial systems.

For engineers reviewing the LTC2313HTS8-14#TRMPBF datasheet, LTC2313HTS8-14#TRMPBF pinout, LTC2313HTS8-14#TRMPBF application, or LTC2313HTS8-14#TRMPBF equivalent, key selection criteria include guaranteed 14-bit no-missing-codes performance across –40°C to 125°C, SPI-compatible 3-wire serial interface with 90 MHz SCK support, nap/sleep mode power management, and dual-supply flexibility (VDD = 2.7–3.6V or 4.75–5.25V; OVDD = 1.71–5.25V).

Technical Context

The LTC2313HTS8-14#TRMPBF implements a fully integrated SAR architecture with on-chip bandgap reference, low-drift reference buffer (≤20 ppm/°C), and internal timing oscillator - eliminating external clock dependencies. Its sample-and-hold operates in single-ended mode with 0 V to VREF input range and supports acquisition time of 175 ns and conversion time of 225 ns.

It features a dedicated OVDD pin enabling logic-level compatibility with 1.8V, 2.5V, 3.3V, or 5V host interfaces independent of analog supply voltage. Power states are controlled via CONV pin sequencing: automatic nap mode entry post-conversion, and sleep mode triggered by four CONV pulses - with wake-up times of <50 ns (nap) and 1.1 ms (sleep).

Key Specifications

Pinout & Package

Package: 8-lead plastic TSOT-23 (TS8), 3.0 mm × 1.6 mm × 0.8 mm profile, RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS8860IDRCT and MAX11198ETE+, the LTC2313HTS8-14#TRMPBF uniquely combines 2.5 Msps throughput, integrated dual-range reference, –40°C to 125°C qualification, and programmable low-power states - making it optimal for space-constrained, thermally demanding, high-dynamic-range embedded systems.

Availability

LTC2313HTS8-14#TRMPBF is available at Aetrix Electronics and suitable for automotive engine control, portable medical imaging, and industrial motor drive applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC2313HTS8-14#TRMPBF 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 LTC2313 family was designed for compact, low-power, high-speed data acquisition systems - emphasizing integration (reference + buffer), wide supply flexibility, and robust operation in extreme temperatures.

FAQ

What is the maximum sampling rate supported by the LTC2313HTS8-14#TRMPBF?

The LTC2313HTS8-14#TRMPBF supports a maximum sampling rate of 2.5 Msps, verified across its full operating temperature range of –40°C to +125°C. This rate is enabled by internal timing circuitry and requires SCK frequency up to 90 MHz. At lower rates, the device automatically enters nap mode to reduce average supply current - maintaining consistent timing performance without external clock management.

Does the LTC2313HTS8-14#TRMPBF require an external reference voltage?

No, the LTC2313HTS8-14#TRMPBF does not require an external reference voltage. It integrates a low-drift (≤20 ppm/°C) reference buffer that outputs either 2.048 V (when VDD = 2.7–3.6 V) or 4.096 V (when VDD = 4.75–5.25 V). The REF pin may be overdriven with an external reference ≥50 mV above the internal value, but this is optional - the internal reference is fully functional and production-qualified.

How does the nap mode function in the LTC2313HTS8-14#TRMPBF?

Nap mode in the LTC2313HTS8-14#TRMPBF is automatically entered after each conversion completes, reducing supply current to ~2 mA while preserving reference buffer and bandgap bias. Wake-up occurs within <50 ns upon next CONV pulse, enabling immediate acquisition. Unlike sleep mode, nap mode retains reference stability - allowing accurate conversions without recovery delay - making it ideal for burst-mode sampling in battery-powered systems.

What digital interface standards does the LTC2313HTS8-14#TRMPBF support?

The LTC2313HTS8-14#TRMPBF supports SPI-compatible 3-wire serial communication (CONV, SCK, SDO) with no CS pin required. It accepts logic levels from 1.71 V to 5.25 V on OVDD, enabling direct interfacing with 1.8 V, 2.5 V, 3.3 V, and 5 V hosts. Data is MSB-first, 14-bit, with no cycle latency - and timing is guaranteed up to 90 MHz SCK, meeting standard SPI timing conventions without protocol translation.

Is the LTC2313HTS8-14#TRMPBF qualified for automotive applications?

Yes, the LTC2313HTS8-14#TRMPBF is explicitly qualified for automotive applications: its H-grade temperature range is –40°C to +125°C, and it is specified with guaranteed performance across this range for all key parameters including INL, DNL, SINAD, and reference drift. The TSOT-23 package is AEC-Q200 stress-tested, and the part is widely deployed in engine control units, battery management systems, and ADAS sensor front-ends.