Analog Devices Inc. LT1460JCS3-2.5#TRMPBF

Overview

LT1460JCS3-2.5#TRMPBF from Analog Devices (formerly Linear Technology) is a micropower precision series voltage reference delivering 2.5V output with ±0.50% initial accuracy, 50ppm/°C temperature coefficient, and 130µA max supply current in a 3-lead SOT-23 package. It operates from V_OUT + 0.9V to 30V input, supplies up to 20mA, and requires no output capacitor - enabling use in handheld instruments and low-power ADC/DAC biasing.

For engineers reviewing the LT1460JCS3-2.5#TRMPBF datasheet, LT1460JCS3-2.5#TRMPBF pinout, LT1460JCS3-2.5#TRMPBF application, or LT1460JCS3-2.5#TRMPBF equivalent, key selection criteria include its industrial-grade 0°C to 70°C operating range, reverse-battery protection, low thermal regulation (2.5–10 ppm/mW), and stability with capacitive loads - critical for space-constrained, battery-powered precision systems.

Technical Context

The LT1460JCS3-2.5#TRMPBF employs curvature-compensated bandgap architecture to achieve low drift and high accuracy without external trimming. Its internal thin-film resistor network is laser-trimmed for ±0.50% output tolerance over temperature, and it features built-in reverse-battery protection that blocks conduction below –15V.

Unlike shunt references, this series reference draws only 130µA max supply current while sourcing up to 20mA - eliminating idle current waste. It maintains stability with 0–1µF capacitive loads and exhibits 100 ppm/√kHr long-term drift, making it suitable for metrology-grade calibration circuits where parametric consistency matters across product lifecycles.

Key Specifications

Pinout & Package

LT1460JCS3-2.5#TRMPBF is housed in a 3-lead plastic SOT-23 package (JEDEC MO-178AA), with 1.3mm × 2.9mm footprint and 1.0mm height - optimized for high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision voltage reference applications.

Compared with LT1460HCS3-2.5#TRMPBF and MAX6126AASA25+, the LT1460JCS3-2.5#TRMPBF delivers optimal balance of cost, size, and micropower efficiency for mid-tier portable instrumentation - trading minor accuracy and drift for 90% lower supply current than the MAX6126 and 20% lower cost than the H-grade LT1460.

Availability

LT1460JCS3-2.5#TRMPBF is available at Aetrix Electronics and suitable for handheld instruments, precision regulators, and A/D and D/A converters requiring stable component supply with lead-free compliance and tape-and-reel packaging.

Supply support for LT1460JCS3-2.5#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) acquired Linear Technology in 2017 and maintains its precision analog portfolio, including voltage references, op-amps, and data converters - serving industrial, medical, and aerospace markets with high-reliability silicon.

The LT1460 family was designed specifically for micropower, high-accuracy voltage referencing in space- and energy-constrained systems - emphasizing low dropout, reverse-battery resilience, and capacitor-free stability without sacrificing long-term drift performance.

FAQ

What is the maximum load current supported by the LT1460JCS3-2.5#TRMPBF?

The LT1460JCS3-2.5#TRMPBF supports up to 20mA of continuous sourcing current while maintaining specified accuracy and regulation. At 20mA load, dropout voltage rises to 1.4V (VIN ≥ 3.9V), and load regulation is rated at 20–100 ppm/mA depending on temperature. Short-circuit output current is 40mA, but sustained operation above 20mA may exceed thermal limits in the SOT-23 package.

Does the LT1460JCS3-2.5#TRMPBF require an output capacitor for stability?

No, the LT1460JCS3-2.5#TRMPBF is internally compensated and remains stable with 0–1µF capacitive loads - a key differentiator from many competing references. This eliminates the need for external output capacitance, reducing PCB area, BOM cost, and potential settling-time penalties. Stability is verified across all operating conditions including full temperature and load ranges.

What is the operating temperature range for the LT1460JCS3-2.5#TRMPBF?

The LT1460JCS3-2.5#TRMPBF is specified for operation from 0°C to 70°C (Commercial grade). Its parameters - including ±0.50% output accuracy and 50ppm/°C temperature coefficient - are guaranteed across this full range. The device is not rated for extended industrial (–40°C to 85°C) or automotive temperature operation; for those environments, consider LT1460BIS3-2.5 or LT1460EIS3-2.5 variants.

How does reverse battery protection work in the LT1460JCS3-2.5#TRMPBF?

The LT1460JCS3-2.5#TRMPBF incorporates internal circuitry that blocks current flow when the IN pin is driven negative relative to GND. It withstands –15V reverse input without conducting or sustaining damage - a critical feature for battery-powered devices where accidental polarity reversal can occur during servicing or battery replacement. This protection is inherent and requires no external diodes or components.

What is the long-term stability specification for the LT1460JCS3-2.5#TRMPBF?

The LT1460JCS3-2.5#TRMPBF exhibits 100ppm/√kHr long-term output voltage drift - meaning after 1000 hours of operation, typical drift is ~100ppm, and after 4000 hours, ~200ppm. This value reflects logarithmic aging behavior; burn-in at 125°C for 100–200 hours can reduce initial drift by up to 50%. Board-level mechanical stress also affects long-term stability, so proper mounting and stress-relief layout practices are recommended.