SSM2135 Dual Single-Supply Audio Operational Amplifier

The SSM2135 dual audio operational amplifier permits excel-lent performance in portable or low power audio systems, with an operating supply range of 4 V to 36 V or ±2 V to ±18 V. The unity-gain stable device has very low voltage noise of 5.2 nV/√Hz, and total harmonic distortion plus noise below 0.01% over normal signal levels and loads. Such characteristics are enhanced by wide output swing and load drive capability. A unique output stage1 permits output swing approaching the rail under moderate load conditions. Under severe loading, the SSM2135 still maintains a wide output swing with ultralow distortion. Particularly well suited for computer audio systems and portable digital audio units, the SSM2135 can perform preamplification, headphone and speaker driving, and balanced line driving and receiving. Additionally, the device is ideal for input signal conditioning in single-supply, Σ-Δ, analog-to-digital converter subsystems such as the AD1877. The SSM2135 makes an ideal single-supply stereo output amplifier for audio digital-to-analog converters (DACs) because of its low noise and distortion.

The SSM2135 is available in an 8-lead plastic SOIC package and is guaranteed for operation over the extended industrial temperature range of −40°C to +85°C.

Features and Benefits
  • Excellent sonic characteristics
  • High output drive capability
  • 5.2 nV/√Hz equivalent input noise @ 1 kHz
  • 0.003% THD + N (VOUT = 1 V p-p @ 1 kHz)
  • 3.5 MHz gain bandwidth
  • Unity-gain stable
  • Low cost
  • Amplifiers
    SSM2135 SPICE Macro-Model
    Data Sheets
    Documentnote
    SSM2135: Dual Single-Supply Audio Operational Amplifier Data Sheet (Rev. G)PDF 1238 kB
    Application Notes
    Documentnote
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0)PDF 5.3 M
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    SSM2135S Production8 ld SOICOTH 98-40 to 85C3.63.24N
    SSM2135S-REEL Production8 ld SOICREEL 2500-40 to 85C03.24N
    SSM2135S-REEL7 Production8 ld SOICREEL 1000-40 to 85C03.24N
    SSM2135SZ Production8 ld SOICOTH 98-40 to 85C2.942.65Y
    SSM2135SZ-REEL Production8 ld SOICREEL 2500-40 to 85C02.65Y
    SSM2135SZ-REEL7 Production8 ld SOICREEL 1000-40 to 85C02.65Y
    SSM2135: Dual Single-Supply Audio Operational Amplifier Data Sheet (Rev. G) ssm2135
    SSM2135 SPICE Macro-Model Rev. A, 3/94 ssm2135
    SSM2135P SPICE Macro-Model Rev. A, 3/94 ssm2135
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0) ad8350