OPA1622 - SoundPlus™ Audio Operational Amplifier with High Performance, Low THD+N and Bipolar Input

Updated : 2020-01-09 14:17:03
Description

The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2.8-nV/√Hz noise density with an ultralow THD+N of –119.2 dB at 1 kHz, while driving a 32-Ω load at 100-mW output power. The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 ideal for use in portable-audio applications. This device also has a high output-drive capability of +145 mA / –130 mA.

The OPA1622 operates over a very wide supply range of ±2 V to ±18 V, on only 2.6 mA of supply current per channel. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior over a wide range of load conditions. The OPA1622 includes a shutdown mode, allowing the amplifiers to be switched from normal operation to a standby current that is typically less than 5 µA. This shutdown feature is specifically designed to eliminate click and pop noise when transitioning into or out of shutdown mode.

The OPA1622 features a unique internal layout for lowest crosstalk, and freedom from interactions between channels, even when overdriven or overloaded. This device is specified from –40°C to +125°C.

Products containing the "OPA1622" keyword are: OPA1622 , OPA1622EVM , OPA1622IDRCR , OPA1622IDRCR , OPA1622IDRCT , OPA1622IDRCT
Features

  • High-Fidelity Sound Quality
  • Ultralow Noise: 2.8 nV/√Hz at 1 kHz
  • Ultralow Total Harmonic Distortion + Noise:
    –119 dB THD+N (142 mW/Ch into 32 Ω/Ch)
  • Wide Gain Bandwidth Product:
    32 MHz (G = +1000)
  • High Slew Rate: 10 V/µs
  • High Capacitive-Load Drive Capability: > 600 pF
  • High Open-Loop Gain: 136 dB (600-Ω Load)
  • Low Quiescent Current: 2.6 mA per Channel
  • Low-Power Shutdown Mode With Reduced Pop
    and Click Noise: 5 µA per Channel
  • Short-Circuit Protection
  • Wide Supply Range: ±2 V to ±18 V
  • Available in small VSON-10 µPackage

Parametrics
StatusACTIVE
Number of channels2
Total Supply Voltage36
GBW32
Slew Rate10
Rail-to-railNo
Vos (offset voltage @ 25 C)0.5
Iq per channel2.6
Vn at 1 kHz2.8
FeaturesBurr-Brown™ Audio^High Cload Drive^Premium Sound^Shutdown^Small Size
THD + N @ 1 kHz0.000018
RatingCatalog
Operating temperature range-40 to 125
Package GroupVSON|10
Approx. price2.46 | 1ku
Output current145
Package size: mm2:W x L (PKG)[pf]10VSON[/pf]: 9 mm2: 3 x 3 (VSON|10)
ArchitectureBipolar
CMRR127
Input bias current2000000