Analog Devices Inc. LT1460ACS8-5#TRPBF

Overview

LT1460ACS8-5#TRPBF from Analog Devices (formerly Linear Technology) is a micropower precision series voltage reference delivering 5.000 V ±0.075% initial accuracy, 10 ppm/°C max temperature coefficient over 0°C to 70°C, and stable operation with up to 20 mA output current. It features 0.9 V minimum input-output differential, no required output capacitor, and reverse battery protection-ideal for portable instrumentation and high-accuracy ADC/DAC biasing.

For engineers reviewing the LT1460ACS8-5#TRPBF datasheet, LT1460ACS8-5#TRPBF pinout, LT1460ACS8-5#TRPBF application, or LT1460ACS8-5#TRPBF equivalent, key selection criteria include guaranteed 0.075% initial tolerance at 25°C, 125 µA typical supply current, stability with capacitive loads up to 1 µF, and SO-8 package compatibility with industrial PCB layouts.

Technical Context

The LT1460ACS8-5#TRPBF uses curvature-compensated bandgap architecture to achieve low drift and high DC accuracy without external trimming. Its internal thin-film resistor network is laser-trimmed for ±0.075% output voltage tolerance across the commercial temperature range.

It operates as a three-terminal series reference with active pass element, enabling sourcing capability up to 20 mA while maintaining line regulation of ≤30 ppm/V (V_IN = V_OUT + 0.9 V to V_OUT + 2.5 V) and load regulation of ≤70 ppm/mA at 20 mA-critical for precision regulator feedback paths and data converter reference rails.

Key Specifications

Pinout & Package

LT1460ACS8-5#TRPBF is housed in an 8-lead plastic SO (SO-8) package with exposed pad thermal enhancement. Pin 1 is VIN, Pin 2 is VOUT, Pin 3 is GND; Pins 4–8 are internally connected no-connects (DNC) and must remain unconnected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with REF5050AIDR and ADR4550BRZ, the LT1460ACS8-5#TRPBF offers optimal balance of micropower operation (125 µA), robust 0.075% accuracy, and proven stability with capacitive loads-making it preferred for portable, cost-sensitive, and space-constrained designs where moderate drift is acceptable.

Availability

LT1460ACS8-5#TRPBF 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 LT1460ACS8-5#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 acquired Linear Technology in 2017 and maintains its legacy of high-performance analog ICs for precision signal conditioning.

The LT1460 series was designed specifically for micropower, high-accuracy voltage referencing in portable and industrial instrumentation-emphasizing low dropout, no-output-capacitor operation, and reverse-polarity resilience.

FAQ

What is the maximum output current capability of the LT1460ACS8-5#TRPBF?

The LT1460ACS8-5#TRPBF can source up to 20 mA continuously while maintaining specified accuracy and stability. This is confirmed in the Absolute Maximum Ratings table and validated across all SO-8 variants in the Electrical Characteristics section. The device sustains this output level with ≤140 ppm/mA load regulation at 20 mA, making it suitable for driving multiple downstream analog blocks without external buffering.

Does the LT1460ACS8-5#TRPBF require an output capacitor for stability?

No, the LT1460ACS8-5#TRPBF does not require an output capacitor and is explicitly characterized as stable with 0–1 µF capacitive loads. This is stated in both the Features list ("No Output Capacitor Required") and verified in Typical Performance Characteristics (Figures G09, G21, G32). Adding capacitance may improve PSRR but is never mandatory for loop stability.

What is the guaranteed initial accuracy of the LT1460ACS8-5#TRPBF at 25°C?

The LT1460ACS8-5#TRPBF guarantees ±0.075% initial output voltage accuracy at 25°C, corresponding to ±3.75 mV around the nominal 5.000 V output. This is documented in the Electrical Characteristics table under "Output Voltage" for LT1460ACN8-5 and ACS8-5 variants, and applies to the commercial-grade (0°C to 70°C) temperature specification.

Can the LT1460ACS8-5#TRPBF operate with a 5.5 V input supply?

Yes, the LT1460ACS8-5#TRPBF can operate with a 5.5 V input supply. Its minimum input-output differential is 0.9 V, so 5.5 V exceeds the required 5.9 V minimum by 0.4 V. However, operation at this margin reduces headroom for line regulation and thermal effects; for robust design, ≥6.0 V is recommended to maintain full spec compliance across temperature and load.

What is the supply current consumption of the LT1460ACS8-5#TRPBF at room temperature?

The LT1460ACS8-5#TRPBF consumes 125 µA typical and 175 µA maximum supply current at 25°C, as specified in the Electrical Characteristics table under "Supply Current" for LT1460-5 variants. This low quiescent current enables multi-year battery life in portable instrumentation and supports always-on sensing nodes.