Overview
The OPA1642AIDGKR is a dual, high-performance, JFET-input operational amplifier designed by Texas Instruments. It is part of the SoundPlus™ series, which is fully specified for audio applications. This device is known for its superior sound quality, low noise, and ultralow distortion, making it ideal for use in various audio circuits. The OPA1642 is available in several package types, including SOIC (D) and VSSOP (DGK), each with 8 pins.
Key Specifications
| Specification | Value |
|---|---|
| Amplifier Type | Audio |
| Number of Circuits | 2 |
| Output Type | Rail-to-Rail |
| Slew Rate | 20 V/µs |
| Gain Bandwidth Product | 11 MHz |
| Input Bias Current | 2 pA |
| Input Offset Voltage | 1000 µV |
| Quiescent Current per Channel | 1.8 mA |
| Output Current per Channel | 36 mA |
| Supply Voltage Range | ±2.25 V to ±18 V |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | VSSOP (DGK), SOIC (D) |
| Number of Pins | 8 |
Key Features
- Superior Sound Quality: Known for its high fidelity and clear audio output.
- True JFET Input Operational Amplifier: With low input bias current of 2 pA.
- Low Noise: 5.1 nV/√Hz at 1 kHz.
- Ultralow Distortion: 0.00005% at 1 kHz.
- High Slew Rate: 20 V/µs.
- Unity Gain Stable: No phase reversal.
- Low Quiescent Current: 1.8 mA per channel.
- Rail-to-Rail Output: Increased headroom for audio circuits.
- Wide Supply Range: ±2.25 V to ±18 V.
- Single, Dual, and Quad Versions Available: Flexibility in design choices.
Applications
The OPA1642AIDGKR is designed for high-performance audio applications, including:
- Audiophile equipment
- Professional audio systems
- High-end consumer audio devices
- Audio preamplifiers and amplifiers
- Active filters and equalizers
Q & A
- What is the OPA1642AIDGKR?
The OPA1642AIDGKR is a dual, high-performance, JFET-input operational amplifier designed for audio applications.
- What are the key features of the OPA1642AIDGKR?
Key features include superior sound quality, low noise, ultralow distortion, high slew rate, unity gain stability, and a wide supply voltage range.
- What is the slew rate of the OPA1642AIDGKR?
The slew rate is 20 V/µs.
- What is the input bias current of the OPA1642AIDGKR?
The input bias current is 2 pA.
- What is the operating temperature range of the OPA1642AIDGKR?
The operating temperature range is -40°C to 85°C.
- What are the available package types for the OPA1642AIDGKR?
The available package types are VSSOP (DGK) and SOIC (D), each with 8 pins.
- What is the quiescent current per channel of the OPA1642AIDGKR?
The quiescent current per channel is 1.8 mA.
- What is the output current per channel of the OPA1642AIDGKR?
The output current per channel is 36 mA.
- What are typical applications for the OPA1642AIDGKR?
Typical applications include audiophile equipment, professional audio systems, high-end consumer audio devices, audio preamplifiers and amplifiers, and active filters and equalizers.
- Is the OPA1642AIDGKR unity gain stable?
Yes, the OPA1642AIDGKR is unity gain stable and does not exhibit phase reversal.
- What is the gain bandwidth product of the OPA1642AIDGKR?
The gain bandwidth product is 11 MHz.
