ADM2486BRW Analog Devices Inc, ADM2486BRW Datasheet - Page 9

• Manufacturer Part Number: ADM2486BRW
• Description: Single Transmitter/Receiver RS-485 16-Pin SOIC W
• Manufacturer: Analog Devices Inc
• Series: iCoupler®r

Specifications of ADM2486BRW

• Package: 16SOIC W
• Data Transmission Topology: Multipoint
• Interface Standards: EIA/TIA-485-A|RS-485
• Data Rate: 20(Min) Mbps
• Function: Line Transceiver
• Number Of Transmitters: 1
• Transmitter Signal Type: Differential
• Transmitter Communication Type: RS-485
• Driving Mode: 3-State
• Typical Dual Supply Voltage: 3.3|5 V
• Inputs - Side 1/side 2: RS-485
• Number Of Channels: 1
• Isolation Rating: 2500Vrms
• Voltage - Supply: 4.75 V ~ 5.25 V
• Propagation Delay: 45ns
• Output Type: Logic
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Operating Temperature: -40°C ~ 85°C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q1893052

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 8. Pin Function Descriptions
Pin
No.
1
2, 8
3
4
5
6
7
9, 15
10
11, 14
12
13
16
B
Mnemonic
V
GND
RxD
RE
RTS
TxD
PV
GND
DE
NC
A
V
DD1
DD2
1
2
Description
Power Supply (Logic Side), 3 V or 5 V Supply. Decoupling capacitor to GND
between 0.01 μF and 0.1 μF.
Ground (Logic Side).
Receiver Output Data. This output is high when (A – B) > 200 mV and low when (A – B) < –200 mV. The output
is three-stated when the receiver is disabled, that is, when RE is driven high.
Receiver Enable Input. This is an active-low input. Driving this input low enables the receiver, and driving it
high disables the receiver.
Request to Send Input. Driving this input high enables the driver, and driving it low disables the driver.
Transmit Data Input. Data to be transmitted by the driver is applied to this input.
Power_Valid. Used during power-up and power-down, needs to be tied high when the ADM2486 is operational,
see the Applications Information section.
Ground (Bus Side).
Driver Enable Status Output. This output signals the driver enable or disable status to other devices on the bus.
DE is high when the driver is enabled and low when the driver is disabled.
No Connect.
Noninverting Driver Output/Receiver Input. When the driver is disabled, or when V
Pin A is put into a high impedance state to avoid overloading the bus.
Inverting Driver Output/Receiver Input. When the driver is disabled, or when V
Pin B is put into a high impedance state to avoid overloading the bus.
Power Supply (Bus Side), 5 V Isolated Supply. Decoupling capacitor to GND
between 0.01 μF and 0.1 μF.
1
GND
GND
PIN 2 AND PIN 8 ARE INTERNALLY CONNECTED.
EITHER OR BOTH MAY BE USED FOR GND
PIN 9 AND PIN 15 ARE INTERNALLY CONNECTED.
EITHER OR BOTH MAY BE USED FOR GND
V
RxD
RTS
TxD
DD1
RE
PV
1
1
1
1
1
2
3
4
5
6
7
8
NC = NO CONNECT
(Not to Scale)
Figure 2. Pin Configuration
ADM2486
TOP VIEW
Rev. D | Page 9 of 20
16
15
14
13
12
10
11
9
V
GND
NC
B
A
NC
DE
GND
DD2
2
2
1
1
1
2
.
.
1
2
required, capacitor value should be
required, capacitor value should be
DD1
or V
DD1
DD2
or V
is powered down,
DD2
is powered down,
ADM2486