Analog Devices Inc. LTC2313HTS8-12#TRPBF

Overview

LTC2313HTS8-12#TRPBF from Analog Devices (formerly Linear Technology) is a 12-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 72.6 dB SINAD, –84 dB THD, and guaranteed no missing codes across –40°C to 125°C, targeting high-speed data acquisition in compact, low-power systems such as medical imaging and battery-operated instrumentation.

For engineers reviewing the LTC2313HTS8-12#TRPBF datasheet, LTC2313HTS8-12#TRPBF pinout, LTC2313HTS8-12#TRPBF application, or LTC2313HTS8-12#TRPBF equivalent, key selection criteria include its 2.5 Msps throughput with zero cycle latency, nap/sleep power management modes (<1 µA sleep current), SPI-compatible 3-wire serial interface supporting 1.8V–5V I/O, and guaranteed operation over extended industrial temperature range.

Technical Context

The LTC2313HTS8-12#TRPBF implements a fully integrated SAR architecture with internal bandgap reference, programmable 2.048V (at 2.7–3.6V VDD) or 4.096V (at 4.75–5.25V VDD) reference output, and on-chip reference buffer. Its timing logic synchronizes conversion via rising-edge-triggered CONV input and outputs 12-bit MSB-first serial data on SDO with no latency.

It features dual power domains: VDD (2.7–3.6V or 4.75–5.25V) for analog core and REF, and OVDD (1.71–5.25V) for digital I/O, enabling interoperability with 1.8V, 2.5V, 3.3V, and 5V host logic. Automatic nap mode activation post-conversion reduces supply current to ~2 mA, while sleep mode achieves <1 µA typical quiescent current.

Key Specifications

Pinout & Package

Package: 8-lead TSOT-23 (Thin Small Outline Transistor), 3.0 mm × 1.6 mm × 0.8 mm, moisture sensitivity level 1 (MSL1), RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 12-bit SAR ADC applications.

Compared with ADS8860IDRCT and MAX11198ETE+, the LTC2313HTS8-12#TRPBF uniquely combines 2.5 Msps speed, integrated 5 V–compatible reference, and –40°C to +125°C qualification in an 8-pin TSOT-23 - making it optimal for high-reliability, thermally demanding, and mixed-supply industrial and automotive applications.

Availability

LTC2313HTS8-12#TRPBF is available at Aetrix Electronics and suitable for medical imaging, high-speed data acquisition, and automotive sensor interface applications requiring stable component supply, long-term lifecycle support, and guaranteed extended-temperature performance.

Supply support for LTC2313HTS8-12#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, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, formed through the acquisition of Linear Technology in 2017.

The LTC2313-12 belongs to ADI's high-speed precision SAR ADC product line, designed specifically for compact, low-power, high-throughput data acquisition in demanding environments including automotive, industrial, and medical systems.

FAQ

What is the maximum sampling rate of the LTC2313HTS8-12#TRPBF?

The LTC2313HTS8-12#TRPBF supports a maximum sampling rate of 2.5 Msps, verified across its full –40°C to +125°C operating temperature range. This rate is achieved using the internal oscillator and requires a minimum CONV pulse width of 10 ns and SCK frequency up to 90 MHz. At this rate, the device consumes 5 mA from a 5 V supply and delivers 72.6 dB SINAD performance.

Does the LTC2313HTS8-12#TRPBF require an external reference voltage?

No, the LTC2313HTS8-12#TRPBF does not require an external reference voltage. It integrates a low-drift (20 ppm/°C max) reference that outputs either 2.048 V (when VDD is 2.7–3.6 V) or 4.096 V (when VDD is 4.75–5.25 V). The REF pin functions as both output and overvoltage-capable input, and must be bypassed with a 2.2 µF ceramic capacitor for stability.

How does the nap mode function in the LTC2313HTS8-12#TRPBF?

The LTC2313HTS8-12#TRPBF automatically enters nap mode after each conversion completes, reducing supply current from 5 mA to ~2 mA without host intervention. Nap mode preserves the internal bandgap and reference buffer, enabling wake-up and valid conversion within one acquisition cycle (<153 ns). It is distinct from sleep mode, which shuts down bias circuitry and requires 1.1 ms recovery time.

What digital interface protocol does the LTC2313HTS8-12#TRPBF use?

The LTC2313HTS8-12#TRPBF uses a 3-wire SPI-compatible serial interface consisting of CONV (convert trigger), SCK (serial clock), and SDO (serial data output). It supports 1.8 V, 2.5 V, 3 V, and 5 V logic levels via the dedicated OVDD pin, outputs MSB-first 12-bit data with no cycle latency, and requires no chip select or frame synchronization signals.

Is the LTC2313HTS8-12#TRPBF pin-compatible with other members of the LTC2313 family?

Yes, the LTC2313HTS8-12#TRPBF is pin-compatible with all variants in the LTC2313 family, including the LTC2313CTS8-12#TRPBF (0°C to 70°C) and LTC2313ITS8-12#TRPBF (–40°C to 85°C), as well as the 14-bit LTC2313-14 versions. All share identical 8-lead TSOT-23 pinout, electrical interface, and timing behavior - allowing drop-in replacement across temperature grades and resolutions.