Texas Instruments TLV2422MFKB

Overview

TLV2422MFKB from Texas Instruments is a dual rail-to-rail output, micropower operational amplifier optimized for wide-input-voltage, low-power systems. It delivers 50 µA per channel supply current, 0 V to 4.5 V common-mode input range (with 5-V supply), and 600-Ω output drive capability-enabling precision signal conditioning in battery-powered remote sensors and analog front-ends interfacing with ADCs.

For engineers reviewing the TLV2422MFKB datasheet, TLV2422MFKB pinout, TLV2422MFKB application, or TLV2422MFKB equivalent, key selection considerations include its –55°C to 125°C extended temperature grade, 950 µV max input offset voltage (TLV2422AM variant), 18 nV/√Hz input voltage noise at 1 kHz, no phase inversion behavior, and compatibility with single-supply 2.7–10 V operation.

Technical Context

The TLV2422MFKB employs Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining micropower operation. Its input stage extends common-mode range to within 0.25 V of both rails, eliminating phase inversion when driven to supply limits-critical for sensor interfaces where input transients approach ground or VDD.

It features high input impedance (10¹² Ω differential and common-mode resistance), ultra-low input bias current (1 pA typ), and is fully characterized across –55°C to 125°C for automotive and industrial applications requiring robustness without sacrificing precision or power efficiency.

Key Specifications

Pinout & Package

TLV2422MFKB is housed in an 8-pin ceramic flatpack (FK) package with metal lid hermetic sealing, suitable for high-reliability aerospace and defense applications. Pin 1 is marked with dot; pin numbering follows standard FK outline with counterclockwise sequence from top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2422MFKB, TLV2422AMFK offers identical performance with enhanced reliability screening, while OPA2333AIDR trades 3× higher supply current for 100× lower offset drift-making TLV2422MFKB optimal for cost-sensitive, wide-temperature, micropower dual-op-amp roles where moderate initial offset is acceptable.

Availability

TLV2422MFKB is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive cabin monitoring, and battery-powered remote data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV2422MFKB 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 heritage in precision op-amps and high-reliability analog ICs.

The TLV2422MFKB belongs to TI's Advanced LinCMOS™ micropower op-amp family, designed specifically for low-voltage, wide-input-range, rail-to-rail output applications in automotive, industrial, and medical systems demanding extended temperature operation and high input impedance.

FAQ

What is the maximum operating temperature range for TLV2422MFKB?

The TLV2422MFKB is rated for operation from –55°C to 125°C, fully characterized across this range per its M-suffix qualification. This makes it suitable for under-hood automotive applications, aerospace subsystems, and industrial controls exposed to extreme ambient temperatures. All key parameters-including input offset voltage, supply current, and CMRR-are guaranteed across the full range, not just at room temperature.

Does TLV2422MFKB support true rail-to-rail input operation?

No, TLV2422MFKB provides rail-to-rail *output* swing but not rail-to-rail *input*. Its common-mode input voltage range extends from VDD– to (VDD+ – 0.8 V) - for example, 0 V to 4.2 V with a 5-V supply. While it avoids phase inversion at the rails, it does not accept inputs equal to VDD+; for full rail-to-rail input capability, consider TI's TLV2772 or OPA2376 families instead.

What is the typical input bias current of TLV2422MFKB, and why does it matter?

The typical input bias current of TLV2422MFKB is 1 pA at 25°C, with a maximum of 300 pA across –55°C to 125°C. This ultra-low value minimizes voltage error across high-impedance sources such as pH electrodes, piezoelectric sensors, or megohm-level feedback networks-ensuring accuracy without requiring guard traces or active bias cancellation circuits.

Can TLV2422MFKB drive a 10-kΩ load while maintaining rail-to-rail output swing?

Yes - TLV2422MFKB maintains rail-to-rail output swing into loads ≥600 Ω. A 10-kΩ load falls well within its specified drive capability, delivering full swing (e.g., 0.04 V to 4.97 V with 5-V supply) with negligible droop. For heavier loads (<600 Ω), output swing degrades; consult Figure 1 in the SLOS199C datasheet for VOH/VOL vs. IOH/IOL curves.

Is TLV2422MFKB pin-compatible with other devices in the TLV2422 family?

Yes - TLV2422MFKB uses the standard 8-pin FK package pinout shared across all TLV2422 variants (e.g., TLV2422CD, TLV2422AIPWLE, TLV2422AMFK). Pin functions (1OUT, 1IN–, 1IN+, VDD–/GND, VDD+, 2OUT, 2IN–, 2IN+) are identical. However, temperature grade, offset voltage spec, and screening level differ - electrical substitution requires verifying VIO, IDD, and qualification level against system requirements.