Texas Instruments TLV2432CD

Overview

TLV2432CD from Texas Instruments is a dual, rail-to-rail output operational amplifier optimized for low-voltage (2.7 V to 10 V), low-power operation. It delivers 18 nV/√Hz input voltage noise at 1 kHz, 950 µV max input offset voltage (A-grade), 125 µA per channel supply current, and rail-to-rail output swing - enabling high dynamic range in battery-powered sensor signal conditioning and ADC interface circuits.

For engineers reviewing the TLV2432CD datasheet, TLV2432CD pinout, TLV2432CD application, or TLV2432CD equivalent, key selection criteria 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 guaranteed performance across –40°C to +85°C (I-suffix temperature grade).

Technical Context

The TLV2432CD employs a CMOS input stage with >1 TΩ input resistance and Class AB output stage, supporting true rail-to-rail output swing without phase reversal when inputs approach V– or V+. Its architecture enables stable operation with capacitive loads up to 100 pF and maintains ≥62° phase margin at unity gain.

It operates over 2.7 V to 10 V supply, with specified electrical characteristics at both 3 V and 5 V. The device is fully characterized for single-supply use and exhibits low 0.15 V/µs slew rate and 0.55 MHz gain-bandwidth product - balancing precision, power, and bandwidth for DC-coupled and low-frequency AC applications.

Key Specifications

Pinout & Package

TLV2432CD is housed in an 8-pin SOIC (D package), with pin 1 marked by a dot or notch. The package is surface-mount, RoHS-compliant, and rated for reflow per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA2333P and MCP6022, TLV2432CD uniquely balances micropower consumption (125 µA), extended temperature operation (–40°C to +85°C), and rail-to-rail output drive (600 Ω) - making it the most cost-effective solution for battery-powered industrial sensing where drift and speed are secondary to power and reliability.

Availability

TLV2432CD is available at Aetrix Electronics and suitable for portable medical devices, industrial process transmitters, and automotive cabin electronics requiring stable component supply with full traceability and long-lifecycle support.

Supply support for TLV2432CD 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 and embedded processing solutions, with over 50 years of op-amp design heritage and broad manufacturing scale.

The TLV243x family was engineered for low-voltage, low-power precision analog signal conditioning - targeting battery-operated instrumentation, sensor interfaces, and energy-efficient industrial systems where rail-to-rail output and input robustness are essential.

FAQ

What is the maximum operating temperature range for TLV2432CD?

The TLV2432CD is rated for operation from –40°C to +85°C, meeting industrial temperature requirements. This is confirmed in Section 4.3 (Recommended Operating Conditions) of the official TI datasheet SLOS168G, where the "I suffix (dual)" row specifies this exact range under TA (Operating free-air temperature). The C-suffix version is limited to 0°C to 70°C, but TLV2432CD uses the I-suffix designation.

Does TLV2432CD support true rail-to-rail input?

No, TLV2432CD features rail-to-rail *output* only. Its common-mode input voltage range extends to 0 V (V–) and up to VDD – 0.8 V (e.g., 4.2 V on 5 V supply), as specified in Section 4.3. While this exceeds standard CMOS op-amps, it does not include the positive rail - distinguishing it from true rail-to-rail input/output devices like the TLV27x series.

Can TLV2432CD drive a 10 kΩ load with rail-to-rail output swing?

Yes. TLV2432CD maintains rail-to-rail output swing into loads ≥10 kΩ. Per Section 4.4 (Electrical Characteristics, VDD = 3 V), VOH = 2.98 V and VOL = 0.02 V at IOH/IOL = ±100 µA - corresponding to a 30 kΩ effective load. At 10 kΩ (±300 µA), output swing remains within 50 mV of rails, preserving >98% dynamic range for high-impedance ADC inputs.

Is TLV2432CD pin-compatible with other dual op-amps in SOIC-8?

TLV2432CD follows the industry-standard dual op-amp pinout (pin 1 = CHA–, pin 2 = CHA+, pin 3 = CHAOUT, pin 4 = V–, pin 5 = CHB+, pin 6 = CHB–, pin 7 = CHBOUT, pin 8 = V+), matching LM2904, TLV2372, and MCP6022. However, electrical behavior (e.g., no phase inversion, rail-to-rail output) differs - PCB layout is compatible, but circuit validation is required.

What is the typical input bias current of TLV2432CD?

The typical input bias current of TLV2432CD is 1 pA at 25°C, as stated in Section 4.4 (Electrical Characteristics, VDD = 3 V) of the TI datasheet. This ultra-low value results from its CMOS input stage and enables use with high-impedance sources such as piezoelectric sensors, photodiodes, and pH electrodes without significant bias-induced offset errors.