Description
The ADM2490E is an isolated data transceiver with ±8 kV ESD protection that is suitable for high speed, full-duplex communication on multipoint transmission lines. It is designed for balanced transmission lines and complies with ANSI TIA/EIA-485-A-1998 and ISO 8482: 1987(E). The device employs Analog Devices, Inc., iCoupler® technology to combine a 2-channel isolator, a threestate differential line driver, and a differential input receiver into a single package. The differential transmitter outputs and receiver inputs feature electrostatic discharge circuitry that provides protection to ±8 kV using the human body model (HBM). The logic side of the device can be powered with either a 5 V or a 3 V supply, whereas the bus side requires an isolated 5 V supply. The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention could cause excessive power dissipation. The ADM2490E is available in a wide body, 16-lead SOIC package and operates over the −40°C to +105°C temperature range.
Specifications: | |
Attribute | Value |
Category | Isolators |
Digital Isolators | |
Mfr | Analog Devices Inc. |
Series | iCoupler® |
Package | Tube |
Part Status | Active |
Technology | Magnetic Coupling |
Type | RS422, RS485 |
Isolated Power | No |
Number of Channels | 2 |
Inputs - Side 1/Side 2 | 1/1 |
Channel Type | Unidirectional |
Voltage - Isolation | 5000Vrms |
Common Mode Transient Immunity (Min) | 25kV/µs |
Data Rate | 16Mbps |
Propagation Delay tpLH / tpHL (Max) | 60ns, 60ns |
Pulse Width Distortion (Max) | - |
Rise / Fall Time (Typ) | - |
Voltage - Supply | 3V, 5V |
Operating Temperature | -40°C ~ 105°C |
Mounting Type | Surface Mount |
Package / Case | 16-SOIC (0.295", 7.50mm Width) |
Supplier Device Package | 16-SOIC |
Base Product Number | ADM2490 |