Texas Instruments OPA2335AID

Overview

OPA2335AID from Texas Instruments is a dual, zero-drift CMOS operational amplifier in SOIC-8 package, delivering 5µV max input offset voltage, 0.05µV/°C max drift, 2 MHz gain-bandwidth, rail-to-rail output swing, and 285µA per-channel quiescent current - optimized for precision transducer signal conditioning in battery-powered medical instrumentation and handheld test equipment.

For engineers reviewing the OPA2335AID datasheet, OPA2335AID pinout, OPA2335AID application, or OPA2335AID equivalent, key selection criteria include guaranteed low-drift performance over –40°C to +125°C, single-supply operation down to +2.7V, high CMRR (110 dB min), and absence of shutdown functionality - distinguishing it from the OPA2334 family.

Technical Context

The OPA2335AID employs auto-zeroing architecture with a time-continuous 2 MHz main amplifier corrected every 100 µs, enabling near-zero long-term drift and eliminating 1/f noise without introducing significant 10 kHz correction artifacts. Its input stage uses CMOS topology with ±70 pA typical input bias current and rail-to-rail common-mode range extending from (V–) – 0.1 V to (V+) – 1.5 V.

It is unity-gain stable and immune to output phase reversal. The dual-channel design shares no internal shutdown logic - unlike the OPA2334 - and operates across full industrial temperature range (–40°C to +125°C) with specified open-loop gain ≥110 dB and PSRR ≥110 dB over temperature.

Key Specifications

Pinout & Package

OPA2335AID is housed in an 8-pin SOIC (D) package, 3.9 mm × 4.9 mm body, with standard JEDEC MS-012 footprint and 1.27 mm lead pitch. Thermal resistance θ_JA = 150°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA2334AIDGSR, OPA2335AID eliminates shutdown logic overhead and simplifies power sequencing; compared with AD8629ARZ, it reduces quiescent current by 53% while maintaining sufficient DC precision for medical and industrial field instruments.

Availability

OPA2335AID is available at Aetrix Electronics and suitable for transducer signal conditioning, temperature measurement, medical instrumentation, battery-powered test equipment, and handheld instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for OPA2335AID 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

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision amplifiers and signal chain solutions.

The OPA2335AID belongs to TI's Zerø-Drift Series, designed specifically for high-accuracy, low-power, single-supply applications in instrumentation, medical, and industrial sensing - where DC stability and minimal thermal drift are non-negotiable.

FAQ

What is the maximum operating temperature range for the OPA2335AID?

The OPA2335AID is fully specified from –40°C to +125°C and rated for continuous operation up to +150°C junction temperature. This makes OPA2335AID suitable for under-hood automotive sensors, industrial motor controls, and portable medical devices exposed to wide ambient swings - all while maintaining its 5 µV max offset and 0.05 µV/°C drift guarantees.

Does the OPA2335AID include a shutdown feature?

No, the OPA2335AID does not include a shutdown feature. It is the non-shutdown dual version of the Zerø-Drift series. Unlike the pin-compatible OPA2334, the OPA2335AID lacks an Enable pin and draws 570 µA continuously. If power gating is required, OPA2334AIDGSR or OPA2334AIDGST must be selected instead - but those require additional control logic and have different pinouts.

What package type is used for the OPA2335AID?

The OPA2335AID uses an 8-pin SOIC (D) package per JEDEC MS-012, with 3.9 mm × 4.9 mm body size, 1.27 mm lead pitch, and gull-wing leads. It is available in tube (75 pcs) and tape-and-reel (2500 pcs) formats. This standard footprint ensures compatibility with automated assembly lines and provides better thermal dissipation (θ_JA = 150°C/W) than MSOP-8 alternatives.

Can the OPA2335AID operate from a single 3.3 V supply?

Yes, the OPA2335AID operates from a single +2.7 V to +5.5 V supply, making it fully compatible with 3.3 V systems. At +3.3 V, its input common-mode range spans –0.1 V to +1.8 V, and rail-to-rail output delivers ≥3.285 V swing into 10 kΩ. This enables direct interfacing with 3.3 V ADCs and microcontrollers without level-shifting circuitry - a key advantage of OPA2335AID in modern low-voltage designs.

How does the auto-zero architecture of the OPA2335AID affect system noise performance?

The OPA2335AID's auto-zero architecture eliminates 1/f noise and achieves 1.4 µV_PP (0.01 Hz to 10 Hz) input voltage noise - ideal for DC and low-frequency sensor signals. Correction occurs at 10 kHz with negligible energy at that frequency; residual artifacts appear >20 MHz and are easily filtered. Unlike chopper-stabilized amps, OPA2335AID shows no switching-induced glitches in the audio or measurement band - preserving signal integrity in ECG and strain gauge applications.