OPA4134

® OPA 134 OPA 213 4 OPA 413 4 OPA 134 OPA 2134 OPA 413 4 OPA134 OPA2134 OPA4134 High Performance AUDIO OPERATIONAL AMPLIFIERS TM FEATURES q SUPERIOR SOUND QUALITY q ULTRA LOW DISTORTION: 0.00008% q LOW NOISE: 8nV/√Hz q TRUE FET-INPUT: IB = 5pA q HIGH SPEED: SLEW RATE: 20V/µs BANDWIDTH: 8MHz q HIGH OPEN-LOOP GAIN: 120dB (600Ω) q WIDE SUPPLY RANGE: ±2.5V to ±18V q SINGLE, DUAL, AND QUAD VERSIONS DESCRIPTION The OPA134 series are ultra-low distortion, low noise operational amplifiers fully specified for audio applications. A true FET input stage was incorporated to provide superior sound quality and speed for exceptional audio performance. This in combination with high output drive capability and excellent dc performance allows use in a wide variety of demanding applications. In addition, the OPA134’s wide output swing, to within 1V of the rails, allows increased headroom making it ideal for use in any audio circuit. OPA134 op amps are easy to use and free from phase inversion and overload problems often found in common FET-input op amps. They can be operated from ±2.5V to ±18V power supplies. Input cascode circuitry provides excellent common-mode rejection and maintains low input bias current over its wide input voltage range, minimizing distortion. OPA134 series op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions, including high load capacitance. The dual and quad versions feature completely independent c...