MAX9719

 2.7V to 5.5V Single-Supply Operation
 Very High -93dB PSRR at 217Hz
 1.4W into 4 at 1% THD+N (per Channel)
 Differential Input
 Internal Fixed Gain to Reduce Component Count
 Adjustable Gain Option (MAX9718A/MAX9719A)
 100nA Low-Power Shutdown Mode
 No Audible Clicks or Pops at Power-Up/Down
 Improved Performance Pin-Compatible Upgrade to LM4895 (MAX9718D)

Supply Voltage (V_CC to GND) .....................................-0.3V to +6V
Any Other Pin to GND ...................................-0.3V to (V_CC + 0.3V)
IN_, BIAS, SHDM, SHDN, SHDN Continuous Current ..............20mA
OUT_ Short-Circuit Duration to GND or V_CC ..................Continuous
Continuous Power Dissipation (T_A = +70°C)
    9-Bump UCSP (derate 5.2mW/°C above +70°C)..........412mW
    10-Pin TDFN (derate 24.4mW/°C above +70°C) ........1951mW
    10-Pin MAX (derate 10.3mW/°C above +70°C) ..........825mW
    16-Bump UCSP (derate 8.2mW/°C above +70°C) ........659mW
    16-Pin TQFN (derate 16.9mW/°C above +70°C) ........1349mW
    16-Pin TSSOP (derate 21.3mW/°C above +70°C) ......1702mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature .......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Bump Temperature (soldering) Reflow...............................+235°C
Lead Temperature (soldering, 10s) ...................................+300°C

The MAX9718/MAX9719 differential input audio power amplifiers are ideal for portable audio devices with internal speakers. The differential input structure improves noise rejection and provides common-mode rejection. A bridge-tied load (BTL) architecture minimizes external component count, while providing highquality, power audio amplification. The MAX9718 is a single-channel amplifier while the MAX9719 is a dualchannel amplifier for stereo systems. Both devices deliver 1.4W continuous average power per channel to a 4 load with less than 1% THD+N while operating from a single +5V supply. The MAX9719 are available as adjustable gain amplifiers or with internally fixed gains of 0dB, 3dB, and 6dB to reduce component count.

A shutdown input of MAX9719 disables the bias generator and amplifiers and reduces quiescent current consumption to less than 100nA. The MAX9718 shutdown input can be set as active high or active low. These MAX9719 feature Maxim's comprehensive click-and-pop suppression circuitry that reduces audible clicks and pops during startup and shutdown.

The MAX9718 is pin compatible with the LM4895, and is available in 9-bump UCSP™, 10-pin TDFN, and 10-pin MAX packages. The MAX9719 is available in 16-pin TQFN, 16-pin TSSOP, and 16-bump UCSP packages. Both devices operate over the -40°C to +85°C extended temperature range.