Overview
The TL082CM is a wide bandwidth dual JFET input operational amplifier produced by National Semiconductor. It is characterized by its low cost, high speed, and internally trimmed input offset voltage using BI-FET II™ technology. This amplifier is designed to require low supply current while maintaining a large gain bandwidth product and a fast slew rate. It is pin compatible with the LM1558, allowing designers to upgrade the performance of existing LM1558 and most LM358 designs. The TL082CM is suitable for various applications requiring low input offset voltage, low input bias current, high input impedance, high slew rate, and wide bandwidth.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | RS = 10 kΩ, TA = 25°C | 5 | 15 | 20 | mV |
| Input Offset Current (IOS) | Tj = 25°C | 25 | 200 | 4 nA (Tj ≤ 70°C) | pA |
| Input Bias Current (IB) | Tj = 25°C | 50 | 400 | 8 nA (Tj ≤ 70°C) | pA |
| Input Resistance (RIN) | Tj = 25°C | 1012 | Ω | ||
| Gain Bandwidth Product (GBW) | VS = ±15V, TA = 25°C | 4 | MHz | ||
| Slew Rate (SR) | VS = ±15V, TA = 25°C | 8 | 13 | V/µs | |
| Supply Current (IS) | 3.6 | 5.6 | mA | ||
| Supply Voltage Range | ±6V | ±15V | V | ||
| Operating Temperature Range | 0°C | 70°C | °C | ||
| Output Voltage Swing | VS = ±15V, RL = 10 kΩ | ±12 | ±13.5 | V |
Key Features
- Internally trimmed input offset voltage: 15 mV.
- Low input bias current: 50 pA.
- Low input noise voltage: 16 nV/√Hz.
- Low input noise current: 0.01 pA/√Hz.
- Wide gain bandwidth product: 4 MHz.
- High slew rate: 13 V/µs.
- Low supply current: 3.6 mA.
- High input impedance: 1012 Ω.
- Low total harmonic distortion: ≤0.02%.
- Fast settling time to 0.01%: 2 µs.
Applications
- High speed integrators.
- Fast D/A converters.
- Sample and hold circuits.
- Three-band active tone control.
- Improved CMRR instrumentation amplifiers.
- Fourth order low pass and high pass Butterworth filters.
- Ohms to volts converters.
Q & A
- What is the input offset voltage of the TL082CM? The input offset voltage is typically 15 mV.
- What is the input bias current of the TL082CM? The input bias current is typically 50 pA.
- What is the gain bandwidth product of the TL082CM? The gain bandwidth product is 4 MHz.
- What is the slew rate of the TL082CM? The slew rate is typically 13 V/µs.
- What is the supply current of the TL082CM? The supply current is typically 3.6 mA.
- What is the operating temperature range of the TL082CM? The operating temperature range is from 0°C to 70°C.
- What is the output voltage swing of the TL082CM? The output voltage swing is ±12 to ±13.5 V for a load resistance of 10 kΩ.
- Is the TL082CM pin compatible with other operational amplifiers? Yes, it is pin compatible with the LM1558 and most LM358 designs.
- What are some typical applications of the TL082CM? Typical applications include high speed integrators, fast D/A converters, sample and hold circuits, and various filter circuits.
- Does the TL082CM have any special noise characteristics? Yes, it exhibits low noise and offset voltage drift, with a low 1/f noise corner of 50 Hz.
