Texas Instruments OPA1637
The OPA1637 is a low-noise, low total harmonic distortion (THD), fully differential, Burr-Brown™ Audio operational amplifier that easily filters and drives fully differential, audio signal chains. The OPA1637 also converts single-ended sources to differential outputs required by high-fidelity analog-todigital converters (ADCs). Designed for exceptional low noise and THD, the bipolar super-beta inputs yield a very low noise figure at very-low quiescent current and input bias current.| Part No. | OPA1637 |
|---|---|
| Datasheet | OPA1637 Download |
| Manufacturer |  Texas Instruments |
| Description | Audio Operational Amplifier |
| Buy | Stock & Price |
FEATURES
● Low input voltage noise: 3.7 nV/√Hz at 1 kHz● Low THD + N: –120 dB at 1 kHz
● Low supply current: 950 µA at ±18 V
● Input offset voltage: ±200 µV (maximum)
● Input bias current: 2 nA (maximum)
● Low bias current noise: 400 fA/√Hz at 10 Hz
● Gain-bandwidth product: 9.2 MHz
● Differential output slew rate: 15 V/µs
● Wide input and output common-mode range
● Wide single-supply operating range: 3 V to 36 V
● Low supply current power-down feature: < 20 µA
● Overload power limit
● Current limit
● Package: 8-pin VSSOP
● Temperature range: –40°C to +125°C 2
APPLICATIONS
● Professional audio mixer or control surface● Professional microphones and wireless systems
● Professional speaker systems
● Professional audio amplifier
● Soundbar
● Turntable
● Professional video camera
● Guitar and other instrument amplifier
● Data aquisition (DAQ) 3
DESCRIPTION
This device is designed for audio circuits where low power consumption is required along with excellent signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR).
