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Product Overview

TLV2434AQPWRQ1 is a four-channel, rail-to-rail output, low-power operational amplifier launched by Texas Instruments (TI), which complies with the EC-Q100 automotive-grade certification standard and is specifically designed for automotive application environments. It offers consistent and stable performance within the range of low voltage (2.7V) to high voltage (10V), making it highly suitable for systems that require high reliability, wide-temperature operation, and power supply adaptability.
This device is widely used in tasks such as sensor signal conditioning, ADC buffering, battery monitoring, and motor control feedback channels, and is one of the key analog components in modern automotive electronic control units (ECUs).

Core parameters and electrical specifications

Parameter item values/descriptions

Model TLV2434AQPWRQ1

• The number of channels is 4
• Gain-bandwidth product (GBW) 1.5 MHz (typical)
• Power supply voltage range: 2.7V - 10V (or ±1.35V to ±5V)
• Input offset voltage: 800 µV (typical)
• Input bias current: 1 pA (typical)
• Current consumption (per amplifier) 350 µA (typical)
• Output type: Rail-to-Rail (rail-to-Rail output)
• Operating temperature range: -40°C to +125°C (automotive grade)
• Packaging form: TSSOP-14 (PW packaging)

The certification standard is AC-Q100 Grade 1, which conforms to the automotive-grade application standard

Product feature highlights

✅ Automotive-grade certification (AC-Q100)
It has passed the Grade 1 temperature grade verification and is suitable for harsh automotive temperature and vibration environments.
✅ rail-to-rail output
The output swing range is close to the power rail, maximizing the dynamic range and suitable for low-voltage ADC interfaces.
✅ Low power consumption, low noise
The typical operating current is only 350µA, making it suitable for batteries or energy-saving systems. It has a relatively low noise density.
✅ High input impedance and ultra-low bias current
It is compatible with high-impedance sources and suitable for signal conditioning of precision sensors (such as temperature, voltage and pressure sensors).
✅ Wide operating voltage range (single supply or dual supply)
It can be flexibly deployed on 3.3V, 5V or ±5V power supply platforms.

Packaging and Pin Diagram (TSSOP-14)

Package description: TSSOP-14, compact in size, suitable for high-density PCB design.
Pin number name description
1 OUT A channel A output
2 IN-A channel A inverting input
3 IN+ A channel A in-phase input
4 V- Negative terminal of power supply/GND
5 IN+ B channel B in-phase input
6 IN-B channel B inverting input
7 OUT Channel B output
8 OUT C channel C output
9 IN-C channel C inverting input
10 IN+ C channel C in-phase input
11 V+ positive terminal of power supply
12 IN+ D channel D in-phase input
13 IN-D channel D inverting input
14 OUT D channel D output

Typical application scenarios

Description of application fields

The automotive ECU circuit is used for front-end conditioning of sensors, buffering of CAN/ADC interfaces, etc

• Pre-stage amplification and differential signal conversion for data acquisition of industrial instruments and meters
• The motor control feedback system detects current, voltage and resistance and adjusts them into signals recognizable by ADC
• The battery monitoring and management system measures the voltage, current or temperature of the battery pack

Medical electronic devices precisely amplify bioelectric signals and require high impedance and low power consumption designs

Alternative models and comparison recommendations

Recommendation reasons for model feature comparison

• TLV2374-Q1 has a higher bandwidth (3MHz) and is more suitable for processing higher-frequency signals
• OPA4171-Q1 offers higher precision and lower noise, making it suitable for precision measurement systems
• The LM324-Q1 has a lower cost. The established models do not have high performance requirements and can be used as a substitute
• The TLV2374IPWR commercial-grade version (non-automotive grade) offers better cost performance in non-automotive environments

Summary

The TLV2434AQPWRQ1 is an automotive-grade, highly reliable, low-power operational amplifier, suitable for all automotive and industrial applications that require stable amplification performance, rail-to-rail output, and wide voltage power supply adaptability. It has become an indispensable link in the complex analog signal chain with its high integration (4 channels), low input offset, high common-mode rejection ratio (CMRR) and rail-to-rail performance.
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