MAX4411
PRODUCTION80mW, Fixed-Gain, DirectDrive, Stereo Headphone Amplifier with Shutdown
Unique Low-Cost Headphone Amplifier Eliminates DC-Blocking Capacitors and Gain-Setting Resistors
- Part Models
- 2
- 1ku List Price
- Starting From $1.05
Part Details
- No Bulky DC-Blocking Capacitors Required
- Fixed -1.5V/V Gain Eliminates External Feedback Network
- MAX4411: -1.5V/V
- MAX4411B: -2V/V
- Ground-Referenced Outputs Eliminate DC-Bias Voltages on Headphone Ground Pin
- No Degradation of Low-Frequency Response Due to Output Capacitors
- 80mW per Channel into 16Ω
- Low 0.003% THD+N
- High PSRR (86dB at 217Hz)
- Integrated Click-and-Pop Suppression
- 1.8V to 3.6V Single-Supply Operation
- Low Quiescent Current (5mA)
- Independent Left/Right, Low-Power Shutdown Controls
- Short-Circuit and Thermal-Overload Protection
- ±8kV ESD-Protected Amplifier Outputs
- Available in Space-Saving Packages
- 16-Bump UCSP (2mm x 2mm x 0.6mm)
- 20-Pin Thin QFN (4mm x 4mm x 0.8mm)
The MAX4411 fixed-gain, stereo headphone amplifier is designed for portable equipment where board space is at a premium. The MAX4411 uses a unique DirectDrive® architecture to produce a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors, saving cost, board space, and component height. Additionally, the gain of the amplifier is set internally (-1.5V/V, MAX4411 and -2V/V, MAX4411B), further reducing component count.
The MAX4411 delivers up to 80mW per channel into a 16Ω load and has low 0.003% THD+N. An 86dB at 217Hz power-supply rejection ratio (PSRR) allows this device to operate from noisy digital supplies without an additional linear regulator. The MAX4411 includes ±8kV ESD protection on the headphone outputs. Comprehensive click-and-pop circuitry suppresses audible clicks and pops on startup and shutdown. Independent left/right, low-power shutdown controls make it possible to optimize power savings in mixed-mode, mono/stereo applications.
The MAX4411 operates from a single 1.8V to 3.6V supply, consumes only 5mA of supply current, has short-circuit and thermal-overload protection, and is specified over the extended -40°C to +85°C temperature range. The MAX4411 is available in a tiny (2mm x 2mm x 0.6mm), 16-bump chip-scale package (UCSP™) and a 20-pin thin QFN package (4mm x 4mm x 0.8mm).
Applications
- Cell Phones
- MP3 Players
- Notebook Computers
- PDAs
- Portable Audio Equipment
- Smartphones
Documentation
Data Sheet 1
Reliability Data 1
Design Note 1
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 |
|---|---|---|---|
| MAX4411ETP+ | 20-LFCSP-4X4X0.75 | ||
| MAX4411ETP+T | 20-LFCSP-4X4X0.75 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 20, 2016 - 1612 ASSEMBLY |
||
| MAX4411ETP+ | PRODUCTION | |
| MAX4411ETP+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
Evaluation Kit for the MAX4411
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