Overview
The MAX3160EAP+ is a programmable RS-232/RS-485/RS-422 multiprotocol transceiver manufactured by Analog Devices Inc./Maxim Integrated. This device is designed to operate within a voltage range of +3.0V to +5.5V and is known for its versatility and robustness. It can be pin-programmed to function as either a 2TX/2RX RS-232 interface or a single RS-485/422 transceiver, making it highly adaptable for various communication protocols. The MAX3160EAP+ features enhanced electrostatic discharge (ESD) protection up to ±15kV and incorporates a proprietary low-dropout transmitter output stage along with an on-board dual charge pump, enabling single-supply operation and eliminating the need for a bipolar ±12V supply.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 3.0 | 5.5 | V | ||
| Operating Temperature Range | -40 | 85 | °C | |||
| Shutdown Supply Current | ICC | SHDN = GND | 1 | µA | ||
| Output Short-Circuit Current | ISC | VY or VZ = -7V to +12V | ±250 | mA | ||
| Maximum Data Rate (RS-232) | RL = 3kΩ, CL = 1000pF | 250 | kbps | |||
| Receiver Propagation Delay | R_IN to R_OUT, CL = 150pF | 0.15 | µs | |||
| ESD Protection | ±15kV |
Key Features
- Flexible Operation: Pin-programmable as either a 2TX/2RX RS-232 interface or a single RS-485/422 transceiver.
- Simultaneous Operation: The MAX3162E can operate as a 2TX/2RX RS-232 interface and a single RS-485/422 transceiver simultaneously.
- Integrated Protection: Transmitters and receivers are protected against wiring faults, and the device features true fail-safe receivers to prevent false transitions on receiver input short or open.
- Short-Circuit and Thermal Protection: Protected against short-circuits over the entire common-mode voltage range and thermal protection from excessive power dissipation.
- Slew Rate Limiting: Minimizes EMI and reduces cable reflections, allowing error-free data transmission up to 250kbps.
- Integrated Charge-Pump Circuitry: Saves board space and eliminates the need for a bipolar ±12V supply, enabling single-supply operation from +3V to +5.5V.
- Low Power Consumption: 1µA shutdown supply current saves power and allows up to 256 transceivers on the bus.
Applications
- Point-of-Sales Equipment: Ideal for POS terminals and other retail devices requiring robust serial communication.
- Industrial Controls: Used in industrial automation and control systems where reliable serial communication is crucial.
- Networking: Suitable for network devices and communication systems that require multiple protocol support).
- RS-232 to RS-485 Interface Converters: Useful in converting between different serial communication protocols).
Q & A
- What is the operating voltage range of the MAX3160EAP+?
The MAX3160EAP+ operates within a voltage range of +3.0V to +5.5V).
- What are the possible configurations of the MAX3160EAP+?
The MAX3160EAP+ can be pin-programmed as either a 2TX/2RX RS-232 interface or a single RS-485/422 transceiver).
- What is the maximum data rate supported by the MAX3160EAP+ in RS-232 mode?
The MAX3160EAP+ supports a maximum data rate of 250kbps in RS-232 mode).
- Does the MAX3160EAP+ have ESD protection?
Yes, the MAX3160EAP+ features enhanced ESD protection up to ±15kV).
- What is the shutdown supply current of the MAX3160EAP+?
The shutdown supply current is 1µA).
- Can the MAX3160EAP+ operate in both half-duplex and full-duplex modes?
Yes, the device can operate in both half-duplex and full-duplex modes depending on the pin configuration).
- What kind of protection does the MAX3160EAP+ offer against wiring faults?
The MAX3160EAP+ offers protection against wiring faults, including short-circuit protection over the entire common-mode voltage range and thermal protection from excessive power dissipation).
- How many transceivers can be connected on the bus with the MAX3160EAP+?
Up to 256 transceivers can be connected on the bus).
- What is the significance of the integrated charge-pump circuitry in the MAX3160EAP+?
The integrated charge-pump circuitry saves board space and eliminates the need for a bipolar ±12V supply, enabling single-supply operation from +3V to +5.5V).
- In what types of packages is the MAX3160EAP+ available?
The MAX3160EAP+ is available in SSOP packages, specifically 20-pin SSOP).
