Texas Instruments TLV3404CD

Overview

TLV3404CD from Texas Instruments is a quad nanopower open-drain comparator with 470 nA per channel supply current, rail-to-rail input range (–0.1 V to VCC + 5 V), and operation across 2.5 V to 16 V supply. It delivers ultra-low power sensing in battery-critical systems such as portable medical monitors and wireless security sensors.

For engineers reviewing the TLV3404CD datasheet, TLV3404CD pinout, TLV3404CD application, or TLV3404CD equivalent, key selection criteria include its 4-channel open-drain output architecture, –40°C to +125°C industrial temperature rating, and compatibility with high-impedance pull-up networks for flexible logic-level interfacing.

Technical Context

The TLV3404CD implements four independent voltage comparators in a single SOIC-14 package, each featuring reverse-battery protection up to 18 V and input overvoltage tolerance of 5 V beyond VCC. Its CMOS open-drain outputs require external pull-up resistors and support wired-OR logic configurations.

Designed for low-noise, low-power threshold detection, the device maintains stable offset voltage (250 µV typical) and high common-mode rejection (60–88 dB) across 2.7 V to 15 V supplies and full industrial temperature range. Propagation delays range from 30 µs (high overdrive) to 300 µs (low overdrive) depending on input step magnitude.

Key Specifications

Pinout & Package

TLV3404CD is housed in a 14-pin SOIC package (8.65 mm × 3.91 mm body size) with standard JEDEC MS-012AC footprint and 1.27 mm pitch. The package supports automated assembly and offers moderate thermal resistance (RθJA = 83.8°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad nanopower comparator applications.

Compared with TLV3404CD, TLV3404IDR extends operational reliability to harsher environments without changing circuit design, while TLV3404IPW reduces PCB area and improves noise margin at the cost of layout revision.

Availability

TLV3404CD is available at Aetrix Electronics and suitable for portable medical equipment, wireless security systems, and handheld instruments requiring stable component supply with long-term manufacturability.

Supply support for TLV3404CD 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, embedded processing, and power management ICs, with decades of expertise in precision signal conditioning and low-power design.

The TLV340x family was developed specifically for ultra-low-power threshold detection in battery-constrained systems, emphasizing nanopower consumption, rail-to-rail input flexibility, and robustness in real-world deployment conditions.

FAQ

What is the maximum supply voltage rating for TLV3404CD?

The absolute maximum supply voltage for TLV3404CD is 17 V, with recommended operating range from 2.5 V to 16 V. Exceeding 17 V risks permanent damage. Reverse-battery protection allows up to –18 V on VCC without failure, making it suitable for applications with potential polarity reversal during battery replacement.

Does TLV3404CD support rail-to-rail input operation?

Yes, TLV3404CD supports a true rail-to-rail input common-mode range from –0.1 V to VCC + 5 V. This allows direct sensing of signals below ground (e.g., thermocouple outputs) or above the supply rail (e.g., battery voltage dividers), eliminating the need for level-shifting circuitry in many designs.

What pull-up resistor value is recommended for TLV3404CD outputs?

A 1-MΩ pull-up resistor is specified in the TLV3404CD datasheet for characterization and meets all published timing and VOL specifications. Lower values (e.g., 10 kΩ) improve rise time but increase quiescent current; higher values (e.g., 10 MΩ) reduce power but degrade switching speed and noise immunity.

Is TLV3404CD pin-compatible with other members of the TLV340x family?

No - TLV3404CD uses a 14-pin SOIC package with dedicated pins for four independent comparators, while TLV3401 (5-pin SOT-23) and TLV3402 (8-pin SOIC/VSSOP) have different pin counts and layouts. Interchangeability requires PCB redesign and schematic updates.

What is the input bias current specification for TLV3404CD?

The TLV3404CD has a typical input bias current of 80 pA at 25°C, with a maximum of 1500 pA across the full industrial temperature range (–40°C to +125°C). This ultra-low bias enables high-impedance sensor interfaces (e.g., pH electrodes, photodiodes) without significant measurement error.