Overview
The ADM3490ARZ-REEL7, produced by Analog Devices Inc., is a 3.3 V slew rate limited, half-duplex RS-485/RS-422 transceiver. This device is designed for low power consumption and high reliability in various communication systems. It features advanced protection mechanisms and is fully specified over commercial and industrial temperature ranges, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 3.3 V |
| Operating Temperature Range | −40°C to +85°C |
| Package Type | 8-Lead Narrow Body Small Outline (SOIC_N) |
| Data Rate | Up to 10 Mbps |
| Receiver Input Impedance | 12 kΩ |
| Driver Enable/Receiver Enable | Yes (DE and RE pins) |
| Low Power Shutdown Current | Typically 2 nA |
| Propagation Delay Skew | Under 10 ns (receiver), 8 ns (driver) |
| Protection Features | Current limit protection, thermal shutdown |
Key Features
- Slew rate limited drivers to minimize EMI and reduce reflections caused by improperly terminated cables.
- Fail-safe receiver feature that results in a logic high output state if inputs are unconnected (floating).
- Low power shutdown mode with a typical current draw of 2 nA.
- Current limit protection and thermal shutdown circuit to prevent excessive power dissipation.
- High impedance driver and receiver outputs when disabled.
- Support for up to 32 transceivers on the bus.
Applications
The ADM3490ARZ-REEL7 is suitable for various RS-485 and RS-422 communication applications, including industrial automation, medical devices, and any system requiring reliable, high-speed data transmission. It is particularly useful in environments where low power consumption and robust protection against faults are essential.
Q & A
- What is the operating voltage of the ADM3490ARZ-REEL7?
The operating voltage is 3.3 V. - What is the maximum data rate supported by the ADM3490ARZ-REEL7?
The device supports data rates up to 10 Mbps. - What type of package does the ADM3490ARZ-REEL7 come in?
The device comes in an 8-Lead Narrow Body Small Outline (SOIC_N) package. - Does the ADM3490ARZ-REEL7 have driver and receiver enable pins?
Yes, it has DE and RE pins for enabling/disabling the driver and receiver. - What is the typical shutdown current of the ADM3490ARZ-REEL7?
The typical shutdown current is 2 nA. - What protection features does the ADM3490ARZ-REEL7 have?
The device features current limit protection and a thermal shutdown circuit. - How many transceivers can be connected on the bus with the ADM3490ARZ-REEL7?
Up to 32 transceivers can be connected on the bus. - What is the propagation delay skew of the ADM3490ARZ-REEL7?
The receiver skew time is under 10 ns, and the driver skew time is 8 ns. - Does the ADM3490ARZ-REEL7 have a fail-safe feature?
Yes, the receiver has a fail-safe feature that results in a logic high output state if inputs are unconnected (floating). - What is the operating temperature range of the ADM3490ARZ-REEL7?
The operating temperature range is −40°C to +85°C.
