MAX9727
Quad Audio Line Driver with 3VRMS Output
Quad Audio Line Driver that Outputs 2VRMS Signals with a Single 5V Supply
Part Details
- 2.7V to 5.5V Single-Supply Operation
- High 100dB PSRR
- 109dB Signal-to-Noise Ratio (SNR)
- Ground-Referenced Outputs
- No Audible Clicks or Pops at Power-Up/Down
- Differential Inputs
- 3VRMS into 1kΩ Load at 5V
- 2VRMS into 1kΩ Load at 3.3V
- 3mA Supply Current Per Channel
- Unity-Gain Stable
- 100nA Low-Power Shutdown Mode
- CLOAD Drive > 220pF
- ±8kV HBM ESD-Protected Outputs
The MAX9727 quad audio line driver with 3VRMS output is ideal for portable audio devices where board space and cost is at a premium. The device uses Maxim's DirectDrive® architecture that produces a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors and saving cost, board space, and component height. A high 100dB PSRR and low 0.0005% THD+N ensures clean, low-distortion amplification of the audio signal. Each MAX9727 amplifier can provide 3VRMS to a 1kΩ load with less than 0.003% THD+N while operating from a single +5V supply. Each MAX9727 amplifier can provide 2VRMS to a 1kΩ load with less than 0.003% THD+N while operating from a single +3.3V supply.
A shutdown input disables the amplifiers and reduces quiescent current consumption to less than 100nA. The MAX9727 features Maxim's comprehensive click-and-pop suppression circuitry that reduces audible clicks and pops during startup and shutdown.
The MAX9727 operates from a single 2.7V to 5.5V supply, consumes only 3mA of supply current per channel, and is specified over the -40°C to +85°C extended temperature range.
Applications
- A/V Receivers
- CD and DVD Players
- Consumer and Professional Audio Equipment
- Portable Audio Devices
- Set-Top Boxes
- Soundcards
Documentation
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
Evaluation Kit for the MAX9727
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