Overview
The LM158APT, produced by STMicroelectronics, is a low-power dual operational amplifier. This component consists of two independent, high-gain, internally frequency-compensated operational amplifiers designed to operate from a single power supply over a wide range of voltages. It is also capable of operating from split power supplies. The LM158APT is part of the LM158 series, which is known for its low power supply current drain that is essentially independent of the magnitude of the power supply voltage.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | - | - | ±16 or 32 | V |
| Input Voltage | -0.3 | - | 32 | V |
| Differential Input Voltage | - | - | ±32 | V |
| Operating Free-Air Temperature Range | -55 | - | 125 | °C |
| Storage Temperature Range | -65 | - | 150 | °C |
| Maximum Junction Temperature | - | - | 150 | °C |
| DC Voltage Gain | - | 100 | - | dB |
| Bandwidth (Unity Gain) | - | 1.1 MHz | - | - |
| Supply Current per Channel | - | 500 µA | - | - |
| Input Bias Current | - | 20 nA | - | - |
| Input Offset Voltage | - | 2 mV | - | - |
| Output Voltage Swing | 0 | - | VCC+ - 1.5 V | V |
Key Features
- Internally frequency compensated for unity gain
- Large DC voltage gain: 100 dB
- Wide bandwidth (unity gain): 1.1 MHz (temperature compensated)
- Wide power supply range: Single supply from 3V to 32V or dual supplies from ±1.5V to ±16V
- 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 negative rails
- Differential input voltage range equal to the power supply voltage
- Large output voltage swing from 0 V to (VCC+ - 1.5 V)
Applications
- Transducer amplifiers
- DC gain blocks
- Conventional op-amp circuits in single power supply systems
- Interface electronics in digital systems (e.g., using standard 5V power supply)
- Active filters
- General signal conditioning and amplification
- 4- to 20-mA current loop transmitters
Q & A
- What is the typical DC voltage gain of the LM158APT?
The typical DC voltage gain is 100 dB.
- What is the bandwidth of the LM158APT at unity gain?
The bandwidth at unity gain is 1.1 MHz, which is temperature compensated.
- What is the range of the power supply voltage for the LM158APT?
The LM158APT can operate from a single supply voltage ranging from 3V to 32V or from dual supplies ranging from ±1.5V to ±16V.
- How much current does the LM158APT typically draw from the power supply?
The supply current per channel is typically 500 µA, which is essentially independent of the supply voltage.
- What is the input bias current of the LM158APT?
The input bias current is typically 20 nA and is temperature compensated.
- What is the input offset voltage of the LM158APT?
The input offset voltage is typically 2 mV.
- Can the LM158APT operate with a single power supply and still swing to ground?
- What are some common applications of the LM158APT?
- What is the maximum junction temperature for the LM158APT?
- What package types are available for the LM158APT?
