Overview
The OPA1662-Q1 is a dual, bipolar-input operational amplifier designed by Texas Instruments, specifically tailored for premium audio applications. This device is well-suited for external amplifier uses in infotainment and cluster systems within automotive and other audio-intensive environments. It is characterized by its low noise density of 3.3 nV/√Hz at 1 kHz and ultra-low distortion of 0.00006% at 1 kHz, making it ideal for ensuring high-quality audio output. The OPA1662-Q1 operates over a wide supply range from ±1.5 V to ±18 V or 3 V to 36 V, with a low quiescent current of 1.5 mA per channel, enhancing design flexibility and efficiency.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Noise Density | 3.3 | nV/√Hz (at 1 kHz) | ||
| Input Current Noise Density | 1 | pA/√Hz (at 1 kHz) | ||
| Total Harmonic Distortion + Noise (THD+N) | 0.00006% | (at 1 kHz) | ||
| Quiescent Current per Channel | 1.2 | 1.5 | 2.5 | mA |
| Slew Rate | 15 | 17 | 20 | V/μs |
| Gain Bandwidth Product (GBP) | 20 | 22 | 25 | MHz (G = 1) |
| Output Drive Capability | ±30 | mA | ||
| Supply Voltage Range | ±1.5 V to ±18 V or 3 V to 36 V | V | ||
| Operating Temperature Range | –40°C | 85°C | °C | |
| Package Types | 8-Pin SOIC, 8-Pin VSSOP |
Key Features
- Low Noise and Distortion: 3.3 nV/√Hz noise density and 0.00006% THD+N at 1 kHz, ensuring high-quality audio output.
- Wide Supply Range: Operates from ±1.5 V to ±18 V or 3 V to 36 V, providing design flexibility.
- Low Quiescent Current: 1.5 mA per channel, suitable for low-power applications.
- High Slew Rate and GBP: 17 V/μs slew rate and 22 MHz gain bandwidth product, enabling high-speed operations.
- Rail-to-Rail Output: Output swing to within 600 mV with a 2-kΩ load, preventing signal clipping.
- High Output Drive Capability: ±30 mA output drive, suitable for driving low-power audio applications.
- Independent Channels: Completely independent circuitry for each channel, minimizing crosstalk and interactions.
- AEC-Q100 Qualified: Qualified for automotive applications with Device Temperature Grade 3: –40°C to 85°C.
Applications
- Automotive Infotainment Systems: Ideal for car audio and cluster systems.
- Premium Audio Systems: Suitable for external audio amplifiers and high-quality audio applications.
- Body Control Modules: Used in body control modules and HEV or EV converters.
- Motor Drive and SMPS Applications: Can be used for high and low side sensing of ripple currents in SMPS devices or motor drives.
Q & A
- What is the input voltage noise density of the OPA1662-Q1?
The input voltage noise density is 3.3 nV/√Hz at 1 kHz.
- What is the total harmonic distortion + noise (THD+N) of the OPA1662-Q1?
The THD+N is 0.00006% at 1 kHz.
- What is the quiescent current per channel of the OPA1662-Q1?
The quiescent current per channel is 1.5 mA.
- What is the slew rate of the OPA1662-Q1?
The slew rate is 17 V/μs.
- What is the gain bandwidth product (GBP) of the OPA1662-Q1?
The GBP is 22 MHz (G = 1).
- What is the output drive capability of the OPA1662-Q1?
The output drive capability is ±30 mA.
- What is the supply voltage range of the OPA1662-Q1?
The supply voltage range is ±1.5 V to ±18 V or 3 V to 36 V.
- What are the package types available for the OPA1662-Q1?
The available package types are 8-Pin SOIC and 8-Pin VSSOP.
- Is the OPA1662-Q1 qualified for automotive applications?
Yes, it is AEC-Q100 qualified with a Device Temperature Grade 3: –40°C to 85°C.
- What are some typical applications of the OPA1662-Q1?
Typical applications include automotive infotainment systems, premium audio systems, body control modules, and motor drive and SMPS applications.
