Overview
The TL084QDR, produced by Texas Instruments, is a quad JFET-input operational amplifier. It is part of the TL08xH family, which are next-generation versions of the industry-standard TL08x devices. These amplifiers are designed to provide outstanding value for cost-sensitive applications, featuring low offset voltage, high slew rate, and a wide range of common-mode and differential voltage ranges. The TL084QDR operates across a broad temperature range of –40°C to 125°C, making it suitable for rugged and demanding applications.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Input Offset Voltage (VOS) | 1 mV | mV |
| Input Offset Voltage Drift (dVOS/dT) | 2 µV/°C | µV/°C |
| Slew Rate | 20 V/µs | V/µs |
| Power Consumption per Channel | 940 µA | µA |
| Supply Voltage Range | ±2.25 V to ±20 V, 4.5 V to 40 V | V |
| Operating Temperature Range | –40°C to 125°C | °C |
| Package Type | SOIC (14 pins) | - |
| Noise Voltage (Vn) | 18 nV/√Hz at f = 1 kHz | nV/√Hz |
| Total Harmonic Distortion (THD) | 0.003% | % |
Key Features
- High slew rate: 20 V/µs (typical)
- Low offset voltage: 1 mV (typical)
- Low offset voltage drift: 2 µV/°C
- Low power consumption: 940 µA per channel (typical)
- Wide common-mode and differential voltage ranges
- Common-mode input voltage range includes VCC+
- Low input bias and offset currents
- Low noise: 18 nV/√Hz at f = 1 kHz (typical)
- Output short-circuit protection
- Low total harmonic distortion: 0.003% (typical)
- High ESD protection: 1.5 kV (HBM)
- Integrated EMI and RF filters
Applications
- Solar energy: string and central inverter systems
- Motor drives: AC and servo drive control and power stage modules
- Single-phase and three-phase UPS systems
- Pro audio mixers
- Battery test equipment
Q & A
- What is the typical input offset voltage of the TL084QDR?
The typical input offset voltage is 1 mV.
- What is the slew rate of the TL084QDR?
The slew rate is 20 V/µs (typical).
- What is the operating temperature range of the TL084QDR?
The operating temperature range is –40°C to 125°C.
- What is the power consumption per channel of the TL084QDR?
The power consumption per channel is 940 µA (typical).
- What is the supply voltage range for the TL084QDR?
The supply voltage range is ±2.25 V to ±20 V, 4.5 V to 40 V.
- Does the TL084QDR have output short-circuit protection?
- What is the typical noise voltage of the TL084QDR at 1 kHz?
The typical noise voltage is 18 nV/√Hz at f = 1 kHz.
- What is the total harmonic distortion (THD) of the TL084QDR?
The total harmonic distortion is 0.003% (typical).
- What kind of ESD protection does the TL084QDR have?
The TL084QDR has 1.5 kV ESD protection (HBM).
- In what types of applications is the TL084QDR commonly used?
The TL084QDR is commonly used in solar energy systems, motor drives, UPS systems, pro audio mixers, and battery test equipment.
