Texas Instruments TLV2404CN

Overview

TLV2404CN from Texas Instruments is a quad rail-to-rail input/output operational amplifier with 880 nA per channel supply current, reverse battery protection up to 18 V, and operation from 2.5 V to 16 V. It features 390 µV typical input offset voltage, 5.5 kHz gain bandwidth, and ±200 µA output drive-enabling ultra-low-power sensor signal conditioning in battery-powered industrial monitoring systems.

For engineers reviewing the TLV2404CN datasheet, TLV2404CN pinout, TLV2404CN application, or TLV2404CN equivalent, key selection criteria include micro-power operation (<1 µA/ch), rail-to-rail I/O swing, reverse-battery fault tolerance, and compatibility with Li-ion (2.5 V) and 15 V industrial rails.

Technical Context

The TLV2404CN uses a dual-differential input stage (PNP + NPN emitter followers) enabling rail-to-rail input common-mode range from –0.1 V to V_CC + 5 V. Its output stage delivers rail-to-rail swing with <200 mV low-level and <30 mV high-level voltage drop at ±2 µA load.

Reverse battery protection is implemented via internal Schottky diode network, limiting reverse supply current to <100 nA at 25°C when V_CC = –18 V and inputs grounded. Input bias current remains below 350 pA (C-suffix, full range) for high-impedance sensor interfacing.

Key Specifications

Pinout & Package

TLV2404CN is housed in a 14-pin plastic DIP (N) package with 0.3-inch body width and through-hole mounting. Pin 1 is marked by a notch or dot; pin numbering follows standard DIP convention (counterclockwise from top-left corner).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2404ID, TLV2404CN offers lower cost and sufficient performance for commercial-grade equipment, while TLV2454CPW trades ultra-low power for speed-making TLV2404CN optimal for battery longevity and fault resilience in fixed-temperature environments.

Availability

TLV2404CN is available at Aetrix Electronics and suitable for portable instrumentation, battery management systems, and industrial sensor transmitters requiring stable component supply across multi-year production cycles.

Supply support for TLV2404CN 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TLV240x family was designed specifically for ultra-low-power, single-supply sensor signal conditioning in battery-operated equipment-emphasizing reverse-battery resilience, rail-to-rail operation, and nanoamp quiescent current.

FAQ

What is the maximum supply voltage for TLV2404CN and what happens beyond that limit?

The absolute maximum supply voltage for TLV2404CN is 17 V. Operation above 16 V is not recommended, as electrical characteristics are only specified up to 16 V. Exceeding 17 V risks permanent damage per absolute maximum ratings. The device includes reverse battery protection up to –18 V on V_CC, but forward overvoltage beyond 17 V is not protected and may cause junction breakdown or parametric shift. Always maintain V_CC ≤ 16 V for reliable TLV2404CN operation.

Does TLV2404CN support true rail-to-rail output swing into 10-kΩ loads?

Yes, TLV2404CN delivers rail-to-rail output swing into ≥10-kΩ loads. At V_CC = 5 V and I_OL = 50 µA, VOL is ≤230 mV (typical 180 mV); at I_OH = –50 µA, VOH is ≥4.90 V. For 10-kΩ loads drawing ±500 µA, output swing degrades to ~150 mV from rails - still usable for most 12-bit ADC interfaces. Full rail-to-rail performance is guaranteed only for loads ≥500 kΩ per the datasheet test conditions, but practical use with 10-kΩ is validated in Figure 11–16.

Can TLV2404CN operate from a single 2.5-V Li-ion cell throughout its discharge curve?

Yes, TLV2404CN operates continuously from 2.5 V to 16 V, making it compatible with a single Li-ion cell discharging from 4.2 V down to 2.5 V cutoff. Its 880 nA/channel supply current ensures minimal load on the cell, and rail-to-rail I/O preserves signal fidelity across the full voltage range. Input common-mode range extends to V_CC + 5 V, so even at 2.5 V supply, inputs can reach 7.5 V - allowing direct interface with higher-voltage sensors without level-shifting circuitry in the TLV2404CN signal path.

How does reverse battery protection work in TLV2404CN and what is its failure mode?

TLV2404CN implements reverse battery protection using six internal Schottky diodes that clamp reverse current. When V_CC = –18 V and inputs grounded, supply current is typically <100 nA at 25°C. This leakage increases with temperature but remains <500 nA at 125°C. The protection does not prevent damage from reverse voltage applied to inputs or outputs - those pins must be limited to ±10 mA per absolute ratings. No latch-up or destructive failure occurs under reverse supply; the device simply draws negligible current until normal polarity is restored.

Is TLV2404CN pin-compatible with other quad op-amps in SOIC or TSSOP packages?

No, TLV2404CN is a 14-pin plastic DIP (N) package and is not pin-compatible with SOIC-14 or TSSOP-14 variants of the same family (e.g., TLV2404CD or TLV2404CPW). While all TLV2404x variants share identical pin functions and ordering, their physical footprints differ: DIP has 0.3″ row spacing and through-hole leads, SOIC has 150-mil width and gull-wing leads, and TSSOP has 4.4-mm width and fine-pitch leads. PCB layout must match the specific package; mechanical adapters or sockets are not recommended due to added inductance affecting stability.