Texas Instruments TLV2434ID

Overview

TLV2434ID from Texas Instruments is a quad rail-to-rail output operational amplifier optimized for low-voltage, low-power applications. It delivers 18 nV/√Hz input voltage noise at 1 kHz, 950 µV max input offset voltage (TLV2434A variant), 125 µA per channel supply current, and rail-to-rail output swing - enabling high dynamic range signal conditioning in battery-powered sensor interfaces and precision ADC drivers.

For engineers reviewing the TLV2434ID datasheet, TLV2434ID pinout, TLV2434ID application, or TLV2434ID equivalent, key selection considerations include its extended common-mode input range (0 V to 4.5 V @ 5 V supply), no phase inversion behavior near supply rails, 600 Ω output drive capability, and qualification for industrial temperature range (–40°C to +125°C) in SOIC-14 package.

Technical Context

The TLV2434ID implements a CMOS-input, Class AB output stage architecture with internal biasing that enables true rail-to-rail output voltage swing while maintaining stable operation across 2.7 V to 10 V supply voltages. Its input stage avoids phase inversion when common-mode voltage approaches either rail - a critical advantage over standard CMOS op-amps in single-supply sensor front-ends.

Each of the four amplifiers features high input impedance (>1 TΩ differential and common-mode resistance), ultra-low input bias current (1 pA typ), and low-noise performance suitable for high-impedance sources like piezoelectric transducers or pH electrodes. The device is fully characterized at both 3 V and 5 V supplies and supports unity-gain stable operation with capacitive loads up to 100 pF.

Key Specifications

Pinout & Package

TLV2434ID is housed in a 14-pin SOIC (D package) with standard quad op-amp pinout. Pin spacing is 1.27 mm, body width 3.9 mm, and total length 8.65 mm - compatible with automated PCB assembly and legacy footprint libraries.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad rail-to-rail output operational amplifier applications.

Compared with TLV2434CDR and MCP6004-E/SL, TLV2434ID uniquely combines industrial temperature range, guaranteed no phase inversion, and 950 µV max VIO - making it the only option among the three qualified for precision, DC-coupled, wide-temperature industrial sensor signal chains.

Availability

TLV2434ID is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical diagnostics, and 4–20 mA loop receivers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV2434ID 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.

The TLV243x family was designed specifically for low-voltage, low-power precision analog signal conditioning - targeting battery-operated instrumentation, sensor front-ends, and ADC interface circuits where rail-to-rail output and robust common-mode behavior are essential.

FAQ

What is the maximum operating temperature range for TLV2434ID?

The TLV2434ID is rated for operation from –40°C to +125°C, meeting industrial temperature requirements. This specification is confirmed in Section 4.3 (Recommended Operating Conditions) of the TI datasheet SLOS168G, where the I-suffix quad variant explicitly lists –40°C to +125°C for the TLV2434I and TLV2434AI variants. The 'D' in TLV2434ID denotes the SOIC-14 package, not a temperature grade - the I-suffix defines the temperature range.

Does TLV2434ID support true rail-to-rail input operation?

No, TLV2434ID provides rail-to-rail *output* swing but not rail-to-rail *input*. Its common-mode input voltage range extends from V– (GND) to VDD – 1.3 V - e.g., 0 V to 3.7 V at 5 V supply. While this exceeds standard CMOS op-amps, it does not include the positive rail. The datasheet explicitly states "extended common-mode input voltage range" and confirms no phase inversion occurs near the rails, but does not claim full rail-to-rail input capability.

Can TLV2434ID drive a 10 kΩ load while maintaining rail-to-rail output?

Yes. TLV2434ID specifies VOL = 0.01 V and VOH = 4.97 V at 100 µA load (Section 4.8), and maintains VOL ≤ 0.8 V and VOH ≥ 4.0 V at ±5 mA (Section 4.8). A 10 kΩ load draws only 0.5 mA at 5 V swing, well within these limits. Therefore, TLV2434ID achieves true rail-to-rail output (within 20 mV of rails) into 10 kΩ, preserving full dynamic range for high-impedance ADC inputs.

Is TLV2434ID pin-compatible with other quad op-amps in SOIC-14 package?

TLV2434ID follows the industry-standard quad op-amp pinout (pin 1 = OUT A, pin 2 = –IN A, pin 3 = +IN A, pin 4 = V–, etc.), matching LM324, TL074, and MCP6004 pin assignments. However, functional compatibility requires verification of supply range, input/output swing, and stability conditions. Electrical differences - such as TLV2434ID's CMOS input vs. bipolar LM324 - mean direct replacement may require circuit validation despite identical pinout.

What is the typical input bias current of TLV2434ID and why does it matter?

The typical input bias current of TLV2434ID is 1 pA at 25°C (Section 4.4). This ultra-low value minimizes voltage drop across high-impedance source elements - for example, a 10 MΩ sensor source contributes only 10 µV error. It is critical in applications like piezoelectric transducer amplification, pH electrode buffers, and high-value resistor-divider networks where even nanoampere-level currents induce measurable offset errors.