The LM258DT is a low-power dual operational amplifier manufactured by STMicroelectronics. It integrates two independent, high-gain operational amplifiers with internal frequency compensation, providing a versatile solution for analog signal amplification, conditioning, and processing in a wide range of electronic systems.
Designed to operate from a single power supply, the LM258DT supports an operating supply voltage range of 3V to 30V. It can also operate from dual supplies ranging from ±1.5V to ±15V, making it suitable for various analog circuit configurations, including sensor interfaces, signal conditioning circuits, and general-purpose amplifier applications.
The device features a typical unity-gain bandwidth of 1.1MHz and a typical large-signal voltage gain of 100dB. Its typical input bias current of 20nA helps minimize loading on high-impedance signal sources, while the input common-mode voltage range includes the negative supply rail.
The LM258DT supports low-power operation, with a typical total supply current of 0.7mA at a 5V supply under no-load conditions. Its output can swing close to ground when operating from a single supply, simplifying circuit design for low-voltage analog applications.
The device operates over an industrial temperature range of -40°C to +105°C. Housed in an 8-pin SO-8 surface-mount package, the LM258DT supports compact PCB layouts and automated SMT assembly.
Key Features:
- Manufacturer: STMicroelectronics
- Part Number: LM258DT
- Product Type: Dual General-Purpose Operational Amplifier
- Number of Amplifiers: 2
- Operating Supply Voltage: 3V to 30V, Single Supply
- Dual-Supply Operation: ±1.5V to ±15V
- Unity-Gain Bandwidth: 1.1MHz Typical
- Large-Signal Voltage Gain: 100dB Typical
- Input Bias Current: 20nA Typical
- Input Offset Voltage: 5mV Typical
- Slew Rate: 0.3V/μs Typical
- Total Supply Current: 0.7mA Typical at 5V, No Load
- Input Common-Mode Range: Includes the Negative Supply Rail
- Internal Frequency Compensation: Yes
- Operating Temperature: -40°C to +105°C
- Package: SO-8
- Number of Pins: 8
- Mounting Type: Surface Mount (SMD/SMT)
- Packaging: Tape and Reel
- Product Status: Active, in Volume Production
Typical Applications:
- Sensor signal amplification
- Analog signal conditioning
- DC gain blocks
- Active filters
- Instrumentation and measurement circuits
- Industrial control systems
- Power supply monitoring
- Voltage and current sensing
- General-purpose analog circuits
The STMicroelectronics LM258DT combines two independently compensated operational amplifiers, low power consumption, and a wide operating supply range in a compact SO-8 package. Its versatile analog performance makes it suitable for industrial electronics, instrumentation, embedded systems, and general-purpose signal processing.
The LM258DT is a practical choice for electronic manufacturers, hardware engineers, and component procurement professionals seeking a dual operational amplifier for cost-effective analog circuit designs.
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