MAX9716
PRODUCTIONLow-Cost, Mono, 1.4W BTL Audio Power Amplifiers
Low-Cost Speaker Amplifiers Offer Up to 1.3W into 4Ω, Headphone Sensing, and Pin-for-Pin Compatible Packaging
- Part Models
- 4
- 1ku List Price
- Starting From $0.61
Part Details
- 2.7V to 5.5V Single-Supply Operation
- 1.4W into 4Ω at 1% THD+N
- 10nA Low-Power Shutdown Mode
- 73dB PSRR at 1kHz
- No Audible Clicks or Pops at Power-Up/Down
- Internal Fixed Gain to Reduce Component Count (MAX9717B/C/D)
- Adjustable Gain Option (MAX9716/MAX9717A)
- Active-Low BTL/SE Input Senses when Headphones are Connected (MAX9717)
- Pin Compatible with LM4890 (MAX9716)
- Pin Compatible with TPA711 (MAX9717A)
- Available in Compact, Thermally Enhanced µMAX and TDFN (3mm x 3mm) Packages
The MAX9716/MAX9717 audio power amplifiers are ideal for portable audio devices with internal speakers. A bridge-tied load (BTL) architecture minimizes external component count, while providing high-quality audio reproduction. Both devices deliver 1.4W continuous power into a 4Ω load with less than 1% Total Harmonic Distortion (THD) while operating from a single +5V supply. With an 8Ω load, both devices deliver 1W continuous power. These devices also deliver 350mW continuous power into an 8Ω load while operating from a single +3.0V supply. The devices are available as adjustable gain amplifiers (MAX9716/MAX9717A) or with internally fixed gains of 6dB, 9dB, and 12dB (MAX9717B/MAX9717C/MAX9717D), reducing component count.
A low-power shutdown mode disables the bias generator and amplifiers, reducing quiescent current consumption to less than 10nA. These devices feature Maxim's industry-leading, comprehensive click-and-pop suppression that reduces audible clicks and pops during startup and shutdown.
The MAX9717 features a headphone sense input (active-low BTL/SE) that senses when a headphone is connected to the device, disables the BTL slave driver, muting the speaker while driving the headphone as a single-ended load. The MAX9716 is pin compatible with the LM4890 and is available in 9-bump UCSP™, 8-pin TDFN (3mm x 3mm), and 8-pin µMAX® packages. The MAX9717 is available in 9-bump UCSP, 8-pin TDFN, and 8-pin µMAX packages. Both devices operate over the -40°C to +85°C extended temperature range.
Applications
- Mobile Phones
- PDAs
- Portable Devices
Documentation
Data Sheet 1
Reliability Data 1
Design Note 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX9716ETA+ | Thin Dual Flatpack No Leads, Exposed Pad | ||
| MAX9716ETA+T | Thin Dual Flatpack No Leads, Exposed Pad | ||
| MAX9716EUA+ | Micro-MAX, Thin Shrink Small-Outline, Exposed Pad | ||
| MAX9716EUA+T | Micro-MAX, Thin Shrink Small-Outline, Exposed Pad |
This is the most up-to-date revision of the Data Sheet.
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