OPA1664 Datasheet | Texas Instruments

OPA1662, OPA1664 SBOS489A - DECEMBER 2011 - REVISED DECEMBER 2024 OPA166x Low-Power, Low-Noise-and-Distortion, Bipolar-Input Sound Plus™ Audio Operational Amplifiers 1 Features - Low noise: 3.3n V/√Hz at 1k Hz - Low distortion: 0.00006% at 1k Hz - Low quiescent current: 1.5m A per channel - Slew rate: 17V/μs - Wide gain bandwidth: 22MHz (G = +1) - Unity gain stable - Rail-to-rail output - Wide supply range: ±1.5V to ±18V or 3V to 36V - Dual and quad versions available - Small package sizes: Dual: SOIC-8 and VSSOP-8 Quad: SOIC-14 and TSSOP-14 2 Applications - USB and firewire audio systems - Analog and digital mixers - Portable recording systems - Audio effects processors - High-end A/V receivers - High-end DVD and Blu-Ray™ players - High-end car audio 3 Description The dual OPA1662 and quad OPA1664 (OPA166x) series of bipolar-input Sound Plus™ audio operational amplifiers achieve a low 3.3n V/√Hz noise density with an ultra-low distortion of 0.00006% at 1k Hz. The OPA166x series of op amps offer rail-to-rail output swing to within 600m V with 2kΩ load, which increases headroom and maximizes dynamic range. These devices also have a high output drive capability of ±30m A. These devices operate over a very wide supply range of ±1.5V to ±18V, or 3V to 36V, on only 1.5m A of supply current per channel. The OPA166x op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load...