Analog Devices Inc. LT6654AMPS6-5#TRPBF

Overview

LT6654AMPS6-5#TRPBF from Analog Devices is a precision 5V voltage reference IC with ±0.05% initial accuracy, 10ppm/°C max temperature drift, and ±10mA output drive capability in a 6-lead TSOT-23 package. It operates from –55°C to 125°C and supports high-resolution data acquisition, industrial sensing, and automotive control systems requiring stable, low-noise reference voltage.

For engineers reviewing the LT6654AMPS6-5#TRPBF datasheet, LT6654AMPS6-5#TRPBF pinout, LT6654AMPS6-5#TRPBF application, or LT6654AMPS6-5#TRPBF equivalent, this page delivers verified specifications, thermal performance across extended temperature range, load regulation behavior, noise characteristics, and real-world substitution guidance for ruggedized analog signal chains.

Technical Context

The LT6654AMPS6-5#TRPBF integrates curvature-compensated bandgap core with buffered output stage, enabling bidirectional ±10mA current sourcing/sinking while maintaining 8ppm/mA max load regulation and 5ppm/V max line regulation up to 36V input. Its architecture ensures stable operation with ≥1µF output capacitance and supports negative reference configuration via current sinking.

Designed for extreme environments, it features 50ppm max thermal hysteresis over –55°C to 125°C cycling, 15ppm/√kHr long-term drift (TSOT-23), and 1.6ppm_P-P (0.1Hz–10Hz) low-frequency noise-critical for 20-bit+ SAR and delta-sigma ADCs in aerospace and downhole instrumentation.

Key Specifications

Pinout & Package

Package: 6-lead ThinSOT™ (TSOT-23), 1mm profile, RoHS-compliant, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with REF5050IDR and ADR4550BRZ, the LT6654AMPS6-5#TRPBF uniquely combines MP-grade temperature range, bidirectional drive, and TSOT-23 compactness-making it the only drop-in solution for space-constrained, high-reliability systems requiring both sourcing and sinking across –55°C to 125°C.

Availability

LT6654AMPS6-5#TRPBF is available at Aetrix Electronics and suitable for automotive engine control units, downhole instrumentation, avionics data acquisition, and industrial process transmitters requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for LT6654AMPS6-5#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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The LT6654 family was designed for precision voltage reference applications demanding low drift, low noise, and robust operation in harsh environments-including automotive, aerospace, and industrial sensing systems.

FAQ

What is the maximum input voltage rating for LT6654AMPS6-5#TRPBF?

The absolute maximum input voltage for LT6654AMPS6-5#TRPBF is 38V relative to GND. However, the recommended operating range is VOUT + 0.5V (i.e., 5.5V minimum) up to 36V. Exceeding 36V risks violating the 100mV dropout specification and may degrade long-term reliability, especially at high ambient temperatures. Always use a 0.1µF ceramic bypass capacitor on VIN to GND.

Does LT6654AMPS6-5#TRPBF support negative reference configurations?

Yes, LT6654AMPS6-5#TRPBF can operate as a precision negative reference by sinking up to 10mA from an external node to its VOUT pin. This enables generation of stable –5V references when used with an op-amp inverter or current mirror topology. The device maintains ±0.05% accuracy and 10ppm/°C drift in sink mode, matching its sourcing performance.

How does thermal hysteresis affect LT6654AMPS6-5#TRPBF in cyclic environments?

LT6654AMPS6-5#TRPBF exhibits ≤50ppm hysteresis over –55°C ↔ 125°C thermal cycling, measured as the difference between output voltage after hot soak versus cold soak, both read at 25°C. This is critical for field-replaceable modules undergoing repeated environmental stress; it ensures repeatability within 0.25mV without recalibration between maintenance cycles.

What output capacitor value is required for stable operation of LT6654AMPS6-5#TRPBF?

LT6654AMPS6-5#TRPBF requires a minimum 1µF ceramic output capacitor connected between VOUT and GND for stability across all load and temperature conditions. Larger values (e.g., 10µF) reduce output impedance at higher frequencies but increase turn-on time beyond the specified 150µs (0.1% settling). X7R or C0G dielectrics are recommended to avoid capacitance loss at temperature extremes.

Is LT6654AMPS6-5#TRPBF pin-compatible with other LT6654 variants in TSOT-23?

Yes, all LT6654 variants in the 6-lead TSOT-23 package-including LT6654AMPS6-5#TRPBF, LT6654BHS6-5#TRPBF, and LT6654AIS6-5#TRPBF-share identical pinout, footprint, and solder reflow profile. Only electrical specifications (accuracy, drift, temp range) differ; no PCB redesign is needed when upgrading or substituting within the same package family.