Analog Devices Inc. LT1632IS8#TRPBF

Overview

LT1632IS8#TRPBF from Analog Devices (formerly Linear Technology) is a dual, rail-to-rail input and output precision operational amplifier optimized for high-speed, low-voltage signal conditioning. It delivers 45MHz gain-bandwidth, 45V/µs slew rate, 4.3mA supply current per amplifier, ±15V or 2.7V–36V wide supply range, and rail-to-rail output swing capable of sourcing/sinking ≥35mA - enabling use in battery-powered instrumentation amplifiers and A/D driver stages.

For engineers reviewing the LT1632IS8#TRPBF datasheet, LT1632IS8#TRPBF pinout, LT1632IS8#TRPBF application, or LT1632IS8#TRPBF equivalent, this page provides verified package mapping (SO-8), confirmed dual op amp pinout, DC precision specs (e.g., 1350µV max V_OS, 800V/mV min A_VOL), AC performance (12nV/√Hz noise, –92dBc distortion at 100kHz), and real-world application context for active filters and low-voltage signal chains.

Technical Context

The LT1632IS8#TRPBF employs a dual-input-stage architecture: PNP differential pair active for V_CM near V–, NPN pair active near V+, enabling true rail-to-rail input operation across full supply range. Output stage uses complementary common-emitter transistors with local feedback capacitors to achieve rail-to-rail swing and maintain stability into capacitive loads up to 200pF at ±15V.

It features internal overdrive protection via cross-coupled diodes (D1–D4) preventing phase reversal when inputs exceed rails by >700mV, and ESD protection rated to 3kV on all pins. Input bias current polarity reverses between input stages - flowing out during PNP operation and in during NPN operation - requiring matched source impedances for minimal offset error.

Key Specifications

Pinout & Package

LT1632IS8#TRPBF is housed in an 8-lead plastic SO (SO-8) package with standard dual op amp pinout and JEDEC MS-012AC footprint (4.9mm × 3.9mm, 1.27mm pitch). Thermal resistance θ_JA = 190°C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual precision op amp applications.

Compared with OPA2333AIDR and AD8628ARZ-REEL7, LT1632IS8#TRPBF uniquely balances high speed (45MHz), high output drive (35mA), and rail-to-rail operation - making it irreplaceable in battery-powered instrumentation requiring both precision and bandwidth.

Availability

LT1632IS8#TRPBF is available at Aetrix Electronics and suitable for active filters, rail-to-rail buffer amplifiers, and driving A/D converters requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature grade (–40°C to 85°C).

Supply support for LT1632IS8#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, formed through the acquisition of Linear Technology in 2017.

The LT1632IS8#TRPBF belongs to Linear's precision high-speed op amp product line, designed specifically for demanding signal-chain applications where rail-to-rail operation, low noise, and wide supply flexibility are critical - including portable test equipment and medical diagnostics.

FAQ

What is the operating temperature range for the LT1632IS8#TRPBF?

The LT1632IS8#TRPBF is specified for operation from –40°C to +85°C (Industrial grade). Electrical characteristics in the datasheet are guaranteed across this full range, with parameters marked "G" applying over the entire span. The device uses a proprietary complementary bipolar process to ensure stable performance across temperature extremes.

Does the LT1632IS8#TRPBF support single-supply operation?

Yes, the LT1632IS8#TRPBF supports true single-supply operation from 2.7V to 36V. Its rail-to-rail input extends from V– to V+, and rail-to-rail output swings within 16mV of either rail - enabling direct interfacing with 3V microcontrollers and ADCs without level-shifting circuitry.

What is the maximum capacitive load the LT1632IS8#TRPBF can drive stably?

At ±15V supplies, the LT1632IS8#TRPBF drives up to 200pF in unity-gain configuration without oscillation. At 3V supply, limit capacitive load to <100pF. For larger loads, add a 20Ω–50Ω isolation resistor between output and capacitance while taking feedback from the op amp output - preserving stability and bandwidth.

How does input bias current behave across common-mode voltage in the LT1632IS8#TRPBF?

The LT1632IS8#TRPBF uses dual-input stages: PNP pair active near V– (bias current flows *out* of inputs), NPN pair active near V+ (bias current flows *in*). This causes polarity reversal and requires matched source impedances on +IN and –IN to minimize offset error - especially critical in high-gain non-inverting configurations.

Is the LT1632IS8#TRPBF pin-compatible with other dual op amp SO-8 packages?

Yes, the LT1632IS8#TRPBF uses the industry-standard dual op amp pinout (Pin 1=OUT A, Pin 2=–IN A, Pin 3=+IN A, Pin 4=V–, Pin 5=V+, Pin 6=OUT B, Pin 7=–IN B, Pin 8=+IN B), matching SO-8 footprints of LM358, TL072, and AD8602 - enabling drop-in replacement where speed, drive, and rail-to-rail performance are required.