Analog Devices Inc. LTC6652AHMS8-3#TRPBF

Overview

LTC6652AHMS8-3#TRPBF from Analog Devices (formerly Linear Technology) is a precision buffered voltage reference IC delivering a stable 3.0V output with ±0.05% initial accuracy, <5ppm/°C temperature drift (A-grade), and 2.2ppm_P-P low-frequency noise (0.1Hz–10Hz). It operates from 3.3V to 13.2V supply, sinks/sources ±5mA, and features shutdown mode (<2µA). It is used in high-resolution ADC/DAC biasing, automotive sensor signal conditioning, and industrial process control where long-term stability and thermal robustness are critical.

For engineers reviewing the LTC6652AHMS8-3#TRPBF datasheet, LTC6652AHMS8-3#TRPBF pinout, LTC6652AHMS8-3#TRPBF application, or LTC6652AHMS8-3#TRPBF equivalent, key selection criteria include guaranteed ±5mA sourcing/sinking capability at 3V output, MSOP-8 package compatibility with high-temperature PCB assembly, low dropout (300mV), and verified long-term drift of 60ppm/√kHr in plastic MSOP packaging.

Technical Context

The LTC6652AHMS8-3#TRPBF employs high-order curvature-compensated bandgap architecture to achieve predictable, monotonic temperature behavior across –40°C to 125°C. Its buffered output stage provides low output impedance (<1Ω typical) and eliminates load regulation dependency on external capacitors.

It integrates an active shutdown circuit with hysteresis on the SHDN pin (V_{TH_UP} ≈ 2.0V, V_{TH_DN} ≈ 1.5V), enabling reliable low-power state transitions. Power supply rejection exceeds –70dB up to 10kHz with no output capacitor, improving system immunity to rail noise in mixed-signal environments.

Key Specifications

Pinout & Package

The LTC6652AHMS8-3#TRPBF is housed in an 8-lead plastic MSOP (MS8) package with exposed pad (θ_JA = 200°C/W). Pins 1, 5, 7, and 8 are ground-connected internally; Pin 1 is DNC (Do Not Connect).

Key Features

Applications

Equivalent & Alternatives

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

Compared with REF5030IDR and ADR4530BRZ, the LTC6652AHMS8-3#TRPBF uniquely combines ±5mA bidirectional drive, active shutdown (<2µA), and MSOP-8 footprint-enabling compact, low-power, high-drive reference designs where SOIC-8 alternatives require additional buffering or disable circuitry.

Availability

LTC6652AHMS8-3#TRPBF is available at Aetrix Electronics and suitable for automotive sensor modules, industrial data loggers, and precision power supply design requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC6652AHMS8-3#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, serving industrial, automotive, communications, and healthcare markets.

The LTC6652 family was designed by ADI's former Linear Technology division specifically for high-accuracy, high-stability voltage referencing in harsh-temperature environments - targeting automotive under-hood, avionics, and industrial control applications demanding guaranteed performance from –40°C to 125°C.

FAQ

What is the maximum supply voltage for the LTC6652AHMS8-3#TRPBF?

The LTC6652AHMS8-3#TRPBF supports a maximum input voltage of 13.2V applied to the VIN pin. Exceeding this rating may cause permanent damage. The minimum operating voltage is V_OUT + 300mV = 3.3V, making it compatible with standard 3.3V and higher rails. Absolute maximum ratings specify –0.3V to 13.2V on VIN relative to GND.

Does the LTC6652AHMS8-3#TRPBF require an output capacitor for stability?

No, the LTC6652AHMS8-3#TRPBF is unconditionally stable without an output capacitor. However, adding a 0.1µF to 10µF capacitor between VOUT and GND improves transient response during large load steps and reduces high-frequency noise. The device remains stable across this full capacitance range, including no capacitor (C_OUT = 0).

What is the output impedance of the LTC6652AHMS8-3#TRPBF in shutdown mode?

In shutdown mode (SHDN pin pulled low), the LTC6652AHMS8-3#TRPBF output presents a high-impedance state approximating 20kΩ × V_OUT. For the 3.0V version, this equals ~60kΩ. This resistive output prevents loading of downstream circuits while allowing safe voltage monitoring during low-power states.

Can the LTC6652AHMS8-3#TRPBF sink and source 5mA simultaneously?

No - the LTC6652AHMS8-3#TRPBF can source up to +5mA or sink up to –5mA, but not both simultaneously. Its output stage is a single-ended buffered amplifier capable of bidirectional current flow depending on load polarity, with guaranteed performance across the full ±5mA range under all specified temperature and supply conditions.

How does humidity affect the long-term stability of the LTC6652AHMS8-3#TRPBF?

The LTC6652AHMS8-3#TRPBF uses a plastic MSOP-8 package, which is susceptible to humidity-induced voltage shifts (~100ppm) due to moisture absorption in the mold compound. For humidity-critical applications (e.g., medical diagnostics), the hermetic LS8 ceramic package variant (LTC6652AHLS8-3#PBF) is recommended, as it eliminates humidity sensitivity entirely.