Overview
The LM358PT, produced by STMicroelectronics, is a low-power dual operational amplifier designed to operate from a single power supply over a wide range of voltages. This device consists of two independent, high-gain, internally frequency-compensated op amps. The LM358PT is particularly suited for applications where low power consumption and single-supply operation are critical, making it ideal for use in various electronic circuits, including transducer amplifiers and DC gain blocks.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | -16 or 32 | ±16 or 32 | V | |
| Input Voltage (Vi) | -0.3 | 32 | V | |
| Differential Input Voltage (Vid) | ±32 | V | ||
| Operating Temperature Range (Toper) | 0 | 70 | °C | |
| Storage Temperature Range (Tstg) | -65 | 150 | °C | |
| Maximum Junction Temperature (Tj) | 150 | °C | ||
| Input Offset Voltage (Vio) | 2 | 3 | 7 | mV |
| Input Offset Current (Iio) | 2 | 10 | 30 | nA |
| Supply Current per Channel | 0.7 | 1.2 | mA (VCC+ = 5V) | |
| Common Mode Rejection Ratio (CMRR) | 60 | 85 | dB | |
| Output Source Current | 20 | 40 | 60 | mA (VCC+ = 15V, Vo = 2V, Vid = 1V) |
| Output Sink Current | 10 | 20 | mA (VCC+ = 15V, Vo = 2V, Vid = -1V) |
Key Features
- Internally frequency-compensated op amps
- Large DC voltage gain: 100 dB
- Wide bandwidth (unity gain): 1.1 MHz (temperature compensated)
- Very low supply current per channel, essentially independent of supply voltage
- Low input bias current: 20 nA (temperature compensated)
- Low input offset voltage: 2 mV
- Low input offset current: 2 nA
- Input common-mode voltage range includes ground
- Output voltage can swing to ground even with a single power supply
Applications
The LM358PT is versatile and can be used in a variety of applications, including:
- Transducer amplifiers
- DC gain blocks
- Conventional op amp circuits in single power supply systems
- Interface electronics in logic systems (e.g., 5V supply)
Q & A
- What is the typical supply voltage range for the LM358PT?
The LM358PT can operate from a single power supply voltage ranging from 3V to 32V. - What is the input offset voltage of the LM358PT?
The input offset voltage is typically 2 mV to 7 mV. - What is the common mode rejection ratio (CMRR) of the LM358PT?
The CMRR is typically between 60 dB and 85 dB. - Can the LM358PT operate with a single power supply?
Yes, the LM358PT is designed to operate from a single power supply voltage and can handle input and output voltages that include ground. - What is the maximum junction temperature for the LM358PT?
The maximum junction temperature is 150°C. - What are the typical applications of the LM358PT?
The LM358PT is commonly used in transducer amplifiers, DC gain blocks, and conventional op amp circuits in single power supply systems. - What is the bandwidth of the LM358PT at unity gain?
The bandwidth at unity gain is 1.1 MHz (temperature compensated). - How much current does the LM358PT typically draw from the supply?
The supply current per channel is typically 0.7 mA to 1.2 mA when VCC+ = 5V. - What is the input bias current of the LM358PT?
The input bias current is typically 20 nA (temperature compensated). - What are the package options available for the LM358PT?
The LM358PT is available in various packages including SO8, MiniSO8, DFN8 2x2, and TSSOP8.
