Overview
The TMUX1574RSVR, produced by Texas Instruments, is a low-capacitance, 2:1 (SPDT) 4-channel analog switch. This device is designed with a wide operating supply range of 1.5 V to 5.5 V, making it versatile for various applications from servers and communication equipment to industrial settings. The TMUX1574RSVR supports bidirectional analog and digital signals and features powered-off protection up to 3.6 V, ensuring isolation when the supply voltage is removed. It also includes fail-safe logic and integrated pull-down resistors on the logic pins, enhancing system reliability and reducing the need for external components.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VDD (Supply Voltage) | 1.5 | 5.5 | V | ||
| IDD (Active Supply Current) | VSEL = 0 V, 1.4 V or VDD | 0 | 0.45 | μA | |
| RON (On-Resistance) | VS = 0 V to VDD*2 | 2 | Ω | ||
| COFF (Source and Drain Off Capacitance) | VS = 2.5 V, VSEL = 0 V, f = 1 MHz | 3.5 | 6 | pF | |
| CON (Source and Drain On Capacitance) | VS = 2.5 V, VSEL = 0 V, f = 1 MHz | 7.5 | 12 | pF | |
| BW (Bandwidth) | RL = 50 Ω | 2 | GHz | ||
| tTRAN (Transition Time from Control Input) | VDD = 2.5 V to 5.5 V, VS = VDD, RL = 200 Ω, CL = 15 pF | 160 | 350 | ns |
Key Features
- Wide Supply Range: 1.5 V to 5.5 V
- Low On-Capacitance: 7.5 pF
- Low On-Resistance: 2 Ω
- High Bandwidth: 2 GHz
- Operating Temperature Range: -40°C to +125°C
- 1.8 V Logic Compatible: Ensures both TTL and CMOS logic compatibility
- Supports Input Voltage Beyond Supply: Up to VDD x 2
- Integrated Pull Down Resistor on Logic Pins: Reduces system size and cost
- Bidirectional Signal Path: Supports analog and digital signals
- Fail-Safe Logic: Protects the device from potential damage
- Powered-off Protection up to 3.6 V Signals: Provides isolation when the supply voltage is removed
- Pinout Compatible to SN74CBTLV3257: Enhances design flexibility
Applications
- Flash memory sharing
- JTAG multiplexing
- SPI multiplexing
- eMMC multiplexing
- Servers
- Data center switches & routers
- Wireless infrastructure
- PC & notebooks
- Building automation
- Grid infrastructure
- ePOS
- Appliances
Q & A
- What is the supply voltage range of the TMUX1574RSVR?
The supply voltage range is from 1.5 V to 5.5 V.
- What is the on-resistance of the TMUX1574RSVR?
The on-resistance is 2 Ω.
- What is the bandwidth of the TMUX1574RSVR?
The bandwidth is 2 GHz.
- Does the TMUX1574RSVR support bidirectional signals?
Yes, it supports bidirectional analog and digital signals.
- What is the purpose of the powered-off protection feature?
The powered-off protection feature provides isolation when the supply voltage is removed, preventing back-powering through an internal ESD diode.
- What is the operating temperature range of the TMUX1574RSVR?
The operating temperature range is from -40°C to +125°C.
- Is the TMUX1574RSVR compatible with both TTL and CMOS logic?
Yes, it is compatible with both TTL and CMOS logic due to its 1.8 V logic compatible thresholds.
- What is the significance of the integrated pull-down resistor on the logic pins?
The integrated pull-down resistor reduces the need for external components, thereby reducing system size and cost.
- What are some common applications of the TMUX1574RSVR?
Common applications include flash memory sharing, JTAG multiplexing, SPI multiplexing, servers, data center switches & routers, and more.
- What is the transition time from the control input of the TMUX1574RSVR?
The transition time from the control input is typically 160 ns to 350 ns for VDD = 2.5 V to 5.5 V.
