Analog Devices Inc. LTC6258HS6#TRMPBF

Overview

LTC6258HS6#TRMPBF from Analog Devices is a single-channel, rail-to-rail input/output operational amplifier optimized for micropower precision applications. It delivers 1.3MHz gain-bandwidth, 20µA quiescent current, 400µV max input offset voltage, and stable operation driving up to 100nF capacitive loads - enabling high-accuracy signal conditioning in battery-powered instrumentation and automotive sensor interfaces.

For engineers reviewing the LTC6258HS6#TRMPBF datasheet, LTC6258HS6#TRMPBF pinout, LTC6258HS6#TRMPBF application, or LTC6258HS6#TRMPBF equivalent, key selection criteria include its –40°C to 125°C operating range, 1.8V–5.25V supply flexibility, shutdown capability (7µA), EMI rejection (45dB @ 1GHz), and TSOT-23-6 package compatibility with space-constrained PCB layouts.

Technical Context

The LTC6258HS6#TRMPBF employs a dual-input-stage architecture: a PNP pair active near V– and an NPN pair activated as common-mode voltage approaches V+, enabling true rail-to-rail input operation across the full 1.8V–5.25V supply range. Its C-Load™ compensation ensures unity-gain stability with capacitive loads up to 100nF without external compensation.

Internal bias current cancellation maintains ≤75nA input bias current over 0.2V–(V+–0.2V) common-mode range, while the rail-to-rail output stage uses a common-emitter topology to achieve ≤250mV swing from either rail at 1mA load. Shutdown control is active-low with 0.6V threshold referenced to V–.

Key Specifications

Pinout & Package

6-Lead TSOT-23 plastic package (2mm × 2mm × 0.8mm), exposed pad not electrically connected. Pin 1 marked by dot; pin numbering follows standard TSOT-23 convention.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar rail-to-rail, micropower op amp applications.

Compared with MAX44260ASA+ and OPA316IDBVR, the LTC6258HS6#TRMPBF uniquely balances sub-25µA operation, 1.3MHz bandwidth, integrated shutdown, and 100nF capacitive load drive in a 6-pin TSOT-23 - making it optimal for space- and power-constrained automotive and portable designs requiring robust EMI immunity.

Availability

LTC6258HS6#TRMPBF is available at Aetrix Electronics and suitable for automotive sensor interfaces, portable medical devices, and battery-powered industrial telemetry requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LTC6258HS6#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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The LTC6258HS6#TRMPBF belongs to the LTC® precision op amp product line, engineered specifically for ultra-low-power, high-accuracy signal conditioning in harsh-environment applications where supply constraints and EMI resilience are critical.

FAQ

What is the maximum capacitive load the LTC6258HS6#TRMPBF can drive stably in unity-gain configuration?

The LTC6258HS6#TRMPBF is specified to remain unity-gain stable with up to 100nF capacitive load, as confirmed in the Capacitive Load Handling plot (Figure 6258 G27) and Applications Information section. This eliminates the need for external isolation resistors in ADC driver or filter applications, preserving signal integrity and simplifying layout. Stability is maintained across the full –40°C to 125°C temperature range and 1.8V–5.25V supply range.

Does the LTC6258HS6#TRMPBF require external components for ESD or input protection?

No, the LTC6258HS6#TRMPBF integrates reverse-biased ESD protection diodes on all pins (as shown in Figure 6258 F01), and input stages include back-to-back diodes limiting differential input voltage to ±1.4V. External protection is unnecessary unless differential input transients exceed ±1.4V or common-mode excursions exceed V– –0.5V or V+ +0.5V - in which case current limiting to <10mA is required per Absolute Maximum Ratings.

How does the shutdown function behave on the LTC6258HS6#TRMPBF, and what is the output state during shutdown?

When the SHDN pin is pulled ≤0.6V relative to V–, the LTC6258HS6#TRMPBF enters shutdown mode, reducing supply current to ≤7µA. During shutdown, the output transitions to a high-impedance (tri-state) condition - it is neither driven high nor low. The internal pull-up on SHDN ensures the amplifier remains enabled if the pin is left floating, eliminating the need for external pull-up resistors in most designs.

Can the LTC6258HS6#TRMPBF operate from a single 1.8V supply while maintaining rail-to-rail input and output performance?

Yes, the LTC6258HS6#TRMPBF is fully characterized for 1.8V operation, with rail-to-rail input range extending from V– –0.1V to V+ +0.1V and output swing within 250mV of either rail at 1mA load (per 1.8V Electrical Characteristics table). Input offset voltage remains ≤±400µV, and gain-bandwidth holds at 1.3MHz, enabling precision signal conditioning in energy-harvesting and coin-cell-powered systems.

What is the typical input voltage noise density of the LTC6258HS6#TRMPBF, and at what frequency is it specified?

The LTC6258HS6#TRMPBF has a typical input voltage noise density of 38nV/√Hz at 1kHz, as specified in both the 5V and 1.8V Electrical Characteristics tables. Over a 100kHz bandwidth, the average noise density remains below 80nV/√Hz, making it suitable for low-noise, low-power signal chains such as sensor front-ends and reference buffers where thermal noise dominates.