Overview
The TL082CMX is a wide bandwidth dual JFET input operational amplifier produced by Texas Instruments, originally developed by National Semiconductor. This device is known for its high speed, low cost, and internally trimmed input offset voltage using BI-FET II™ technology. It is designed to offer low input bias and offset currents, high input impedance, and a large gain bandwidth product, making it suitable for a variety of high-performance applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage | RS = 10 kΩ, TA = 25°C | 5 | 15 | 20 | mV |
| Input Bias Current | TA = 25°C | 50 | pA | ||
| Input Noise Voltage | TA = 25°C, RS = 100Ω, f = 1000 Hz | 16 | nV/√Hz | ||
| Input Noise Current | Tj = 25°C, f = 1000 Hz | 0.01 | pA/√Hz | ||
| Gain Bandwidth Product | VS = ±15V, TA = 25°C | 4 | MHz | ||
| Slew Rate | VS = ±15V, TA = 25°C | 8 | 13 | V/μs | |
| Supply Current | TA = 25°C | 3.6 | mA | ||
| Input Impedance | TA = 25°C | 10^12 | Ω | ||
| Total Harmonic Distortion | AV = +10, RL = 10k, VO = 20 Vp-p, BW = 20 Hz-20 kHz | <0.02 | % | ||
| 1/f Noise Corner | TA = 25°C | 50 | Hz | ||
| Settling Time to 0.01% | TA = 25°C | 2 | μs | ||
| Supply Voltage | ±6 | ±15 | ±18 | V | |
| Operating Temperature Range | 0 | 70 | °C |
Key Features
- Internally trimmed input offset voltage using BI-FET II™ technology
- 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: 10^12 Ω
- Low total harmonic distortion: ≤0.02%
- Low 1/f noise corner: 50 Hz
- Fast settling time to 0.01%: 2 μs
- Output short-circuit protection
- Internal frequency compensation
- Latch-up free operation
Applications
The TL082CMX is suitable for various high-performance applications, including:
- High-speed integrators
- Fast D/A converters
- Sample and hold circuits
- Circuits requiring low input offset voltage, low input bias current, high input impedance, high slew rate, and wide bandwidth
Q & A
- What is the typical input offset voltage of the TL082CMX?
The typical input offset voltage is 15 mV.
- What is the input bias current of the TL082CMX?
The input bias current is typically 50 pA.
- What is the gain bandwidth product of the TL082CMX?
The gain bandwidth product is 4 MHz.
- What is the slew rate of the TL082CMX?
The slew rate is typically 13 V/μs.
- What is the supply current of the TL082CMX?
The supply current is typically 3.6 mA.
- What is the input impedance of the TL082CMX?
The input impedance is 10^12 Ω.
- What is the total harmonic distortion of the TL082CMX?
The total harmonic distortion is ≤0.02%.
- What is the 1/f noise corner of the TL082CMX?
The 1/f noise corner is 50 Hz.
- What is the settling time to 0.01% of the TL082CMX?
The settling time to 0.01% is 2 μs.
- What are the typical applications of the TL082CMX?
Typical applications include high-speed integrators, fast D/A converters, sample and hold circuits, and other circuits requiring low input offset voltage, low input bias current, high input impedance, high slew rate, and wide bandwidth.
- Is the TL082CMX pin compatible with other operational amplifiers?
Yes, the TL082CMX is pin compatible with the standard LM1558, allowing designers to upgrade the performance of existing LM1558 and most LM358 designs.
