Texas Instruments TLV2344IN

Overview

TLV2344IN from Texas Instruments is a quad low-voltage, high-speed operational amplifier in LinCMOS™ technology, designed for single-supply operation from 2 V to 8 V across –40°C to 85°C. It delivers 790-kHz unity-gain bandwidth and 2.1-V/µs slew rate at 3 V, with rail-to-rail output swing and input common-mode range extending to the negative rail - enabling precision signal conditioning in battery-powered sensor interfaces and portable instrumentation.

For engineers reviewing the TLV2344IN datasheet, TLV2344IN pinout, TLV2344IN application, or TLV2344IN equivalent, key selection criteria include its 1.1-mV max input offset voltage (25°C), 10¹²-Ω typical input impedance, ultra-low 0.1-pA input offset current, ESD-protected architecture, and compatibility with 3-V/5-V systems requiring ac performance near BiFET amplifiers.

Technical Context

The TLV2344IN implements a fully differential LinCMOS input stage with complementary metal-oxide-semiconductor transistors optimized for low-voltage operation, achieving high input impedance and minimal bias current without compromising ac response. Its internal architecture supports stable unity-gain configuration with ≥47° phase margin at 85°C and 20-pF capacitive load.

Each of the four independent amplifiers features rail-inclusive common-mode input range (down to VDD–/GND and up to VDD –1 V at 25°C), output voltage swing within 120 mV of GND and 190 mV of VDD at 1 mA, and full characterization at both 3 V and 5 V supply rails over industrial temperature range.

Key Specifications

Pinout & Package

TLV2344IN is housed in a 14-pin plastic DIP (N) package with 0.3-inch body width and through-hole mounting. The package supports standard wave soldering and manual prototyping, with thermal resistance θ_JA = 5.6 °C/mW and maximum power dissipation of 364 mW at 85°C ambient.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad operational amplifier applications.

Compared with TLV2344ID, TLV2344IN offers identical performance in a through-hole package ideal for evaluation and low-volume manufacturing; versus LM324N, it delivers 6× lower offset, 4× faster slew rate, and true single-supply usability below 3 V - making it superior for modern portable and energy-constrained designs.

Availability

TLV2344IN is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, audio pre-amplification, and automotive cabin sensors requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TLV2344IN 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 innovation in precision amplifiers and low-power signal chains.

The TLV2344IN belongs to TI's LinCMOS™ low-voltage op-amp family, engineered specifically for high-speed, single-supply operation in portable and battery-powered instrumentation where rail-to-rail performance and ultra-low input current are essential.

FAQ

What is the maximum operating temperature range for the TLV2344IN?

The TLV2344IN is rated for continuous operation from –40°C to +85°C ambient temperature, with full electrical specifications guaranteed across this industrial temperature range. Absolute maximum junction temperature is 150°C, and thermal derating begins above 25°C at 5.6 mW/°C for the N-package variant.

Does the TLV2344IN support true rail-to-rail input and output operation?

The TLV2344IN supports rail-to-rail output swing (within 120 mV of GND and 190 mV of VDD at 1 mA) and rail-inclusive input common-mode range (extends to VDD–/GND and up to VDD –1 V at 25°C). However, it does not provide full rail-to-rail input differential range - the input stage saturates if differential voltage exceeds ±VDD.

Can the TLV2344IN be used with a 2.5-V supply?

Yes, the TLV2344IN is fully functional at 2.5 V, as its specified minimum supply voltage is 2 V. Performance parameters such as unity-gain bandwidth (≈650 kHz), slew rate (≈1.9 V/µs), and output swing remain usable, though VIO and IDD shift slightly relative to 3-V/5-V characterization points.

How does the TLV2344IN compare to the TLV2342IN in terms of channel count and pin compatibility?

The TLV2344IN is a quad op-amp in 14-pin PDIP, while the TLV2342IN is a dual op-amp in 8-pin PDIP. They share identical per-amplifier electrical characteristics and LinCMOS™ architecture, but are not pin-compatible due to different pin counts and internal channel mapping - TLV2344IN uses Pins 1–7 and 8–14 for two independent dual sections, whereas TLV2342IN uses Pins 1–4 and 5–8.

Is the TLV2344IN suitable for driving capacitive loads like ADC input capacitors?

Yes, the TLV2344IN maintains stability with up to 20 pF capacitive load at unity gain, as confirmed by phase margin ≥47° at 85°C. For larger loads (>50 pF), an isolation resistor (10–100 Ω) between amplifier output and capacitor is recommended to prevent peaking or oscillation.