MAX4744
PRODUCTIONLow-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability
Negative Signal Handling and Audio Clickless/Popless Features in a Small, 10-Pin µDFN Package (2mm x 2mm)
- Part Models
- 4
- 1ku List Price
- Starting From $1.64
Part Details
- Distortion-Free Negative Signal Throughput Down to VCC - 5.5V
- Internal Shunt Resistor Reduces Click/Pop (MAX4744/MAX4744H)
- 0.6Ω (typ) Low On-Resistance
- 0.1Ω (max) Channel-to-Channel Matching
- 0.55Ω (max) On-Resistance Flatness
- +1.8V to +5.5V Single-Supply Voltage
- 0.01% (typ) Total Harmonic Distortion
- -75dB (typ) Crosstalk (100kHz)
- -68dB (typ) Off-Isolation (100kHz)
- Available in 10-Pin µDFN Package (2mm x 2mm)
The MAX4744/MAX4744H/MAX4745/MAX4745H/MAX4746H dual SPDT (single-pole/double-throw) audio switches feature negative signal capability that allows signals as low as VCC - 5.5V to pass through without distortion. These analog switches have a low on-resistance and low supply current, and operate from a single +1.8V to +5.5V supply.
The MAX4744/MAX4744H have internal shunt resistors that automatically discharge the capacitance at the normally open (NO) and normally closed (NC) terminals when they are not connected. The MAX4746H features internal shunt resistors on NC_ terminals. This reduces click-and-pop sounds that occur when switching audio signals between precharged points. A break-before-make feature further reduces popping. The MAX4744/MAX4745 control the switches with two control bits CB1 and CB2. The MAX4744H/MAX4745H/MAX4746H have one control bit to switch both switches and an enable input active-low EN to put the switches in a high-impedance mode. The MAX4744H/MAX4745H/MAX4746H also have an internal protection network against voltages applied to COM_ when VCC = 0V.
These devices are available in a space-saving 10-pin µDFN (2mm x 2mm) package and operate over the -40°C to +85°C extended temperature range.
Applications
- Cellular Phones
- MP3 Players
- Notebook Computers
- PDAs and Other Handheld Devices
- Power Routing
- Speaker Switching
Documentation
Data Sheet 1
Reliability Data 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 |
|---|---|---|---|
| MAX4744ELB+ | 10-LFCSP-2X2X0.75 | ||
| MAX4744ELB+T | 10-LFCSP-2X2X0.75 | ||
| MAX4744HELB+ | 10-LFCSP-2X2X0.75 | ||
| MAX4744HELB+T | 10-LFCSP-2X2X0.75 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 9, 2023 - 2276A WAFER FAB |
||
| MAX4744ELB+ | PRODUCTION | |
| MAX4744ELB+T | PRODUCTION | |
| MAX4744HELB+ | PRODUCTION | |
| MAX4744HELB+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
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