Overview
The LF253DT is a high-speed JFET input dual operational amplifier produced by STMicroelectronics. This device is part of the LF253 and LF353 series, known for their high slew rates, low input bias and offset currents, and low offset voltage temperature coefficient. The LF253DT is integrated into a monolithic circuit that includes well-matched, high-voltage JFET and bipolar transistors. It is available in an SO-8 package, making it suitable for a variety of applications requiring high performance and reliability.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 6 | - | 36 | V |
| Operating Temperature Range | -40 | - | 105 | °C |
| Input Offset Voltage (Vio) | 3 | 10 | 13 | mV |
| Input Offset Current (Iio) | 5 | 100 | 400 | pA |
| Input Bias Current (Iib) | 20 | 200 | 400 | pA |
| Large Signal Voltage Gain (Avd) | 50 | 100 | 200 | V/mV |
| Slew Rate (SR) | 12 | 16 | - | V/µs |
| Gain Bandwidth Product (GBP) | 2.5 | 4 | - | MHz |
| Input Resistance (Ri) | - | 10^12 | - | Ω |
| Total Harmonic Distortion (THD) | - | 0.01 | - | % |
Key Features
- Low power consumption
- Wide common-mode and differential voltage range
- Low input bias and offset current
- Output short-circuit protection
- High input impedance JFET input stage
- Internal frequency compensation
- Latch-up free operation
- High slew rate of 16 V/µs (typical)
- High gain bandwidth product of up to 4 MHz
- Low total harmonic distortion of 0.01%
Applications
The LF253DT is suitable for a wide range of applications due to its high performance characteristics. These include:
- Audio and video equipment where low distortion and high slew rates are required.
- Medical devices that need high accuracy and low noise.
- Industrial control systems requiring robust and reliable operation.
- Automotive electronics where the device's wide operating temperature range is beneficial.
- General-purpose amplification in various electronic circuits.
Q & A
- What is the typical slew rate of the LF253DT?
The typical slew rate of the LF253DT is 16 V/µs.
- What is the operating temperature range of the LF253DT?
The operating temperature range of the LF253DT is -40°C to +105°C.
- What is the input offset voltage of the LF253DT?
The input offset voltage of the LF253DT is typically 10 mV, with a range of 3 mV to 13 mV.
- Does the LF253DT have output short-circuit protection?
- What is the gain bandwidth product of the LF253DT?
The gain bandwidth product of the LF253DT is up to 4 MHz.
- What type of package is the LF253DT available in?
The LF253DT is available in an SO-8 package.
- What is the typical supply current of the LF253DT?
The typical supply current of the LF253DT is 3.2 mA.
- Is the LF253DT latch-up free?
- What is the common mode rejection ratio (CMRR) of the LF253DT?
The CMRR of the LF253DT is typically 70 dB.
- What is the total harmonic distortion (THD) of the LF253DT?
The THD of the LF253DT is typically 0.01%.
