MAX98307 Series Power Amplifiers


Maxim's MAX98307 is a fully-differential, mono, class DG, multilevel power amplifiers with integrated inverting charge pumps offering highly-efficient, high-power audio solutions for portable applications

The MAX98307 fully-differential, mono, class DG multilevel power-amplifiers with integrated inverting charge pumps offers highly-efficient, high-power audio solutions for portable applications. Class DG multilevel modulation extends the dynamic range of the output signal by employing a charge-pump-generated negative rail as needed to extend the supply range. This scheme results in high-efficiency over a wide output power range. The ICs combine Maxim’s active-emissions limiting edge rate and overshoot control circuitry with multilevel output modulation to greatly reduce EMI. These features eliminate the need for output filtering as compared to traditional class D devices, reducing component count and cost. The MAX98307’s 16-pin TQFN package features an adjustable gain set by external resistors. These devices operate over the extended -40°C to 85°C temperature range.

Long-Term Supply Program Lead (SnPb) Finish for COTS
Features
  • High-efficiency combined with high output power
  • Class DG multilevel modulation ensures maximum efficiency over wide output power range
  • Improves battery life
  • Low 1.85 mA quiescent current
  • High output power at 1% THD+N
  • 1.54 W at VPVDD = 3.6 V, 8 Ω + 68 µH load
  • 2.85 W at VPVDD = 5 V, 8 Ω + 68 µH load
  • High output power at 10% THD+N
  • 1.77 W at VPVDD = 3.6 V, 8 Ω + 68 µH load
  • 3.3 W at VPVDD = 5 V, 8 Ω + 68 µH load
  • 84% efficiency (VPVDD = 3.6 V, at 500 mW output)
  • Active-emissions limiting and class DG multilevel output modulation eliminates EMI output-filtering requirement
  • Integrated charge pump and high-efficiency results in small solution size
  • Excellent RF immunity
  • Click-and-pop suppression
  • Thermal and overcurrent protection
  • Low-current shutdown mode
  • MAX98307 Series Power Amplifiers

    Manufacturer Part Number Description Available Quantity Datasheets
    MAX98307ETE+T IC AMP AUD 3.3W MONO DG 16TQFN 3891
    MAX98307EVKIT# KIT EVAL FOR MAX98307 4