Overview
The OPA1654AIDR, part of the OPA1654 family, is a quad-channel, FET-input operational amplifier designed by Texas Instruments. This device is known for its exceptional audio performance, featuring very low noise and ultra-low distortion. The OPA1654 is unity-gain stable and offers a rail-to-rail output swing, which enhances headroom and maximizes dynamic range. The amplifier is suitable for a wide range of supply voltages, from ±2.25 V to ±18 V or 4.5 V to 36 V, making it versatile for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Slew Rate | - | 10 | - | V/μs |
| Gain Bandwidth | - | 18 | - | MHz (G = 1) |
| Supply Voltage Range | ±2.25 | - | ±18 | V |
| Quiescent Current (per channel) | 2 | 2.5 | 2.8 | mA |
| Input Bias Current | ±10 | - | ±100 | pA |
| Common-Mode Voltage Range | (V–) + 0.5 | - | (V+) – 2 | V |
| Open-Loop Voltage Gain | 106 | 114 | - | dB |
| Output Voltage Range | (V–) + 0.8 | - | (V+) – 0.8 | V |
| Total Harmonic Distortion + Noise (THD + N) | - | 0.00005% | - | % (G = 1, f = 1 kHz, VO = 3 VRMS) |
Key Features
- Unity-gain stable
- Rail-to-rail output swing to within 800 mV with a 2-kΩ load
- Low noise density: 4.5-nV/√Hz
- Ultra-low distortion: 0.00005% at 1 kHz
- Internal phase-reversal protection
- Input protection from excessive differential voltage with back-to-back diodes
- Wide supply range: ±2.25 V to ±18 V or 4.5 V to 36 V
- Small package sizes: SO-14 and TSSOP-14 for quad versions
Applications
- Analog and digital mixers
- Audio effects processors
- Musical instruments
- A/V receivers
- DVD and Blu-Ray players
- Car audio systems
Q & A
- What is the slew rate of the OPA1654AIDR?
The slew rate of the OPA1654AIDR is 10 V/μs.
- What is the gain bandwidth of the OPA1654AIDR?
The gain bandwidth of the OPA1654AIDR is 18 MHz at a gain of 1.
- What is the typical quiescent current per channel for the OPA1654AIDR?
The typical quiescent current per channel is 2.5 mA.
- What is the input bias current of the OPA1654AIDR?
The input bias current is typically ±10 pA.
- What is the common-mode voltage range for the OPA1654AIDR?
The common-mode voltage range is from (V–) + 0.5 V to (V+) – 2 V.
- Does the OPA1654AIDR have phase-reversal protection?
- What is the total harmonic distortion + noise (THD + N) for the OPA1654AIDR?
The THD + N is 0.00005% at a gain of 1, frequency of 1 kHz, and output voltage of 3 VRMS.
- What are the package options for the OPA1654AIDR?
The OPA1654AIDR is available in SO-14 and TSSOP-14 packages.
- What are some common applications of the OPA1654AIDR?
Common applications include analog and digital mixers, audio effects processors, musical instruments, A/V receivers, DVD and Blu-Ray players, and car audio systems.
- What is the operating temperature range for the OPA1654AIDR?
The operating temperature range is from –40°C to 85°C.
