Maxim Alternatives for the National Semiconductor LM4670

National Semiconductor LM4670

Benefits of the MAX9705 over the LM4670:

• Lower THD (0.2% vs. 0.35%), higher PSRR (75dB vs. 68dB), and lower supply current (7mA over temp vs. 10mA @ 25°C) than the LM4670
• Four variants with gains of 2, 4, 8, 10 V/V vs. adjustable external gain for LM4670
• Specified switching frequencies and external synchronization
• The LM4670 is unspecified for switching frequency
• Fully specified over temperature, the LM4670 is specified at +25°C only

Benefits of the LM4670 over the MAX9705:

• LM4670 is in 3mm x 3mm LLP (TDFN) vs. 3mm x 3mm TQFN
• LM4670 has lower offset voltage
• LM4670 has gain set by external resistors

Maxim Alternative(s)	Description	Data Sheet	Order
MAX9705	2.3W, Ultra-Low-EMI, Filterless, Class D Audio Amplifier	QuickView Full (PDF) Data Sheet	Sample Buy