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Application Note
PicoGate Logic footprints
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Package Information
plastic, extremely thin quad flat package; no leads; 10 terminals
Low-Ohmic Dual Single-Pole Double-Throw Analog Switch
NX3L4684 Receive alerts
The NX3L4684 is a dual low-ohmic single-pole double-throw analog switch, suitable for use as an analog or digital multiplexer/demultiplexer. Each switch has a digital select input (nS), two independent inputs/outputs (nY0 and nY1) and a common input/output (nZ).
Schmitt trigger action at the digital inputs makes the circuit tolerant to slower input rise and fall times. Low threshold digital inputs allows this device to be driven by 1.8 V logic levels in 3.3 V applications without significant increase in supply current ICC. This makes it possible for the NX3L4684 to switch 4.3 V signals with a 1.8 V digital controller, eliminating the need for logic level translation. The NX3L4684 allows signals with amplitude up to VCC to be transmitted from nZ to nY0 or nY1; or from nY0 or nY1 to nZ. Its low ON resistance (0.3 Ω for Y0 port, 0.5 Ω for Y1 port) and flatness (0.1 Ω) ensures minimal attenuation and distortion of transmitted signals.
Product Details
Block Diagram
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Features
- Wide supply voltage range from 1.4 V to 4.3 V
- Very low ON resistance (peak) for Y0 port:
- 0.8 Ω (typical) at VCC = 1.4 V
- 0.5 Ω (typical) at VCC = 1.65 V
- 0.3 Ω (typical) at VCC = 2.3 V
- 0.25 Ω (typical) at VCC = 2.7 V
- 0.25 Ω (typical) at VCC = 4.3 V
- Break-before-make switching
- High noise immunity
- ESD protection:
- HBM JESD22-A114F Class 3A exceeds 4000 V
- MM JESD22-A115-A exceeds 200 V
- CDM AEC-Q100-011 revision B exceeds 1000 V
- IEC61000-4-2 contact discharge exceeds 6000 V for switch ports
- CMOS low-power consumption
- Latch-up performance exceeds 100 mA per JESD 78B Class II Level A
- 1.8 V control logic at VCC = 3.6 V
- Control input accepts voltages above supply voltage
- Very low supply current, even when input is below VCC
- High current handling capability (350 mA continuous current under 3.3 V supply)
- Specified from – 40 °C to +85 °C and from – 40 °C to +125 °C
Target Applications
- Cell phone
- PDA
- Portable media player
Design Resources
Design Files
2 design files
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Models
nx3l4684_tk IBIS model
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Models
nx3l4684_gm IBIS model
Engineering Services
To get further assistance directly from NXP, please see our Engineering Services.
2 engineering services
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Independent Design House (IDH)
Embedded Software Design
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Independent Design House (IDH)
Hardware Design Services
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