Overview
The LM158J, part of the LM158 series, is a low-power, dual-operational amplifier produced by Texas Instruments. These operational amplifiers are designed to operate from a single power supply voltage over a wide range of voltages, making them versatile for various applications. They feature true-differential inputs and can remain in the linear mode with an input common-mode voltage of 0 VDC. The LM158 series is compatible with all forms of logic and has a power drain suitable for battery operation, making them ideal for systems requiring low power consumption.
Key Specifications
| Parameter | Unit | Min | Max | |
|---|---|---|---|---|
| Supply Voltage (V+ - V-) | V | 3 (±1.5) | 32 (±16) | |
| Differential Input Voltage | V | 32 | ||
| Input Voltage | V | -0.3 | 32 | |
| Power Dissipation (PDIP) | mW | 830 | ||
| Operating Temperature | °C | -55 | 125 | |
| Input Offset Voltage | mV | 1 | 2 | 5 |
| Input Bias Current | nA | 20 | 50 | 150 |
| Input Common-Mode Voltage Range | V | 0 | V+ - 1.5 | |
| Large Signal Voltage Gain | V/mV | 15 | ||
| Output Voltage Swing (V+ = 5 V, RL = 10 kΩ) | mV | 20 |
Key Features
- Operates from a single power supply voltage over a wide range (3 V to 32 V).
- True-differential inputs with no need for input differential voltage protection diodes.
- Low power supply current drain independent of the magnitude of the power supply voltage.
- Compatible with all forms of logic and suitable for battery operation.
- High input impedance and low input bias current.
- Wide operating temperature range (-55°C to 125°C for LM158).
Applications
- Active filters.
- General signal conditioning and amplification.
- 4-mA to 20-mA current loop transmitters.
- Transducer amplifiers and DC gain blocks.
- Conventional op-amp circuits in single power supply systems.
Q & A
- What is the operating voltage range for the LM158J?
The LM158J can operate from a single power supply voltage ranging from 3 V to 32 V.
- What are the typical applications of the LM158J?
The LM158J is used in active filters, general signal conditioning and amplification, 4-mA to 20-mA current loop transmitters, transducer amplifiers, and DC gain blocks.
- What is the input common-mode voltage range for the LM158J?
The input common-mode voltage range is from 0 V to V+ - 1.5 V.
- How does the LM158J handle differential input voltages?
The LM158J can accommodate large differential input voltages without the need for input differential voltage protection diodes.
- What is the maximum operating temperature for the LM158J?
The maximum operating temperature for the LM158J is 125°C.
- Is the LM158J suitable for battery operation?
Yes, the LM158J has a power drain suitable for battery operation.
- What is the typical input bias current of the LM158J?
The typical input bias current is around 50 nA.
- Can the LM158J operate with split power supplies?
Yes, the LM158J can operate from split power supplies as well as single power supply voltages.
- What is the large signal voltage gain of the LM158J?
The large signal voltage gain is approximately 15 V/mV.
- How does the LM158J protect against negative input voltages?
Protection should be provided to prevent the input voltages from going negative more than -0.3 VDC at 25°C.
