ISO1176T Series

40-Mbps, half-duplex, isolated RS-485 & RS-422 transceiver with integrated transformer driver

Catalog

40-Mbps, half-duplex, isolated RS-485 & RS-422 transceiver with integrated transformer driver

Part	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Technology	Package / Case [x]	Package / Case	Package / Case [y]	Voltage - Supply [Min]	Voltage - Supply [Max]	Voltage - Isolation	Channel Type	Data Rate	Inputs - Side 1/Side 2 [custom]	Inputs - Side 1/Side 2 [custom]	Number of Channels [custom]	Type	Common Mode Transient Immunity (Min) [Min]	Mounting Type	Primary Attributes	Contents	Function	Utilized IC / Part	Supplied Contents	Secondary Attributes
Texas Instruments ISO1176TDWR	85 °C	-40 °C	16-SOIC	Capacitive Coupling	0.295 in	16-SOIC	7.5 mm	3 V 4.75 V	5.25 V 5.5 V	2500 Vrms	Unidirectional	40 Mbps	2	1	3	RS422 RS485	25 kV/µs	Surface Mount
Texas Instruments ISO1176DWG4	85 °C	-40 °C	16-SOIC	Capacitive Coupling	0.295 in	16-SOIC	7.5 mm	3.15 V 4.75 V	5.25 V 5.5 V	2500 Vrms	Unidirectional	40 Mbps	2	1	3	RS422 RS485	25 kV/µs	Surface Mount
Texas Instruments ISO1176TDW	85 °C	-40 °C	16-SOIC	Capacitive Coupling	0.295 in	16-SOIC	7.5 mm	3.15 V 4.75 V	5.25 V 5.5 V	2500 Vrms	Unidirectional	40 Mbps	2	1	3	RS422 RS485	25 kV/µs	Surface Mount
Texas Instruments ISO1176TEVM-433																Interface			PROFIBUS RS-485 Transceiver	Board(s)	RS-485 Transceiver	ISO1176T
Texas Instruments ISO1176EVM																Interface			PROFIBUS RS-485 Transceiver		Digital Isolator	ISO1176	Accessories Board(s)	4000 V

Catalog

40-Mbps, half-duplex, isolated RS-485 & RS-422 transceiver with integrated transformer driver

Key Features

• Meets or Exceeds the Requirements of EN 50170 and TIA/EIA-485-ASignaling Rates up to 40 MbpsEasy Isolated Power Design with Integrated Transformer DriverTypical Efficiency > 60% (I LOAD = 100 mA) - seeSLUU471Differential Output exceeds 2.1 V (54-Ω Load)Low Bus Capacitance 10 pF (Maximum)Fail-safe Receiver for Bus Open, Short, or Idle50-kV/µs Typical Transient ImmunitySafety and Regulatory Approvals4242 V PK Basic Insulation per DIN EN IEC 60747-17 (VDE 0884-17)2500 V RMS Isolation for 1 minute per UL 1577CSA 60950-1 and CSA 61010-1 StandardsMeets or Exceeds the Requirements of EN 50170 and TIA/EIA-485-ASignaling Rates up to 40 MbpsEasy Isolated Power Design with Integrated Transformer DriverTypical Efficiency > 60% (I LOAD = 100 mA) - seeSLUU471Differential Output exceeds 2.1 V (54-Ω Load)Low Bus Capacitance 10 pF (Maximum)Fail-safe Receiver for Bus Open, Short, or Idle50-kV/µs Typical Transient ImmunitySafety and Regulatory Approvals4242 V PK Basic Insulation per DIN EN IEC 60747-17 (VDE 0884-17)2500 V RMS Isolation for 1 minute per UL 1577CSA 60950-1 and CSA 61010-1 Standards

Description

The ISO1176T is an isolated differential line transceiver with integrated oscillator outputs that provide the primary voltage for an isolation transformer. The device is ideal for long transmission lines because the ground loop is broken to allow the device to operate with a much larger common-mode voltage range. The symmetrical isolation barrier of each device is tested to provide 4242V PK of isolation per VDE for 60 seconds between the line transceiver and the logic-level interface. The galvanically isolated differential bus transceiver is an integrated circuit designed for bi-directional data communication on multipoint bus-transmission lines. The transceiver combines a galvanically isolated differential line driver and differential input line receiver. The driver has an active-high enable with isolated enable-state output on the ISODE pin (pin 10) to facilitate direction control. The driver differential outputs and the receiver differential inputs connect internally to form a differential input/output (I/O) bus port that is designed to offer minimum loading to the bus whenever the driver is disabled or V CC2 = 0. Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the transceiver and/or near-by sensitive circuitry if they are of sufficient magnitude and duration. The ISO1176T can significantly reduce the risk of data corruption and damage to expensive control circuits. The device is characterized for operation over the ambient temperature range of –40°C to 85°C. The ISO1176T is an isolated differential line transceiver with integrated oscillator outputs that provide the primary voltage for an isolation transformer. The device is ideal for long transmission lines because the ground loop is broken to allow the device to operate with a much larger common-mode voltage range. The symmetrical isolation barrier of each device is tested to provide 4242V PK of isolation per VDE for 60 seconds between the line transceiver and the logic-level interface. The galvanically isolated differential bus transceiver is an integrated circuit designed for bi-directional data communication on multipoint bus-transmission lines. The transceiver combines a galvanically isolated differential line driver and differential input line receiver. The driver has an active-high enable with isolated enable-state output on the ISODE pin (pin 10) to facilitate direction control. The driver differential outputs and the receiver differential inputs connect internally to form a differential input/output (I/O) bus port that is designed to offer minimum loading to the bus whenever the driver is disabled or V CC2 = 0. Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the transceiver and/or near-by sensitive circuitry if they are of sufficient magnitude and duration. The ISO1176T can significantly reduce the risk of data corruption and damage to expensive control circuits. The device is characterized for operation over the ambient temperature range of –40°C to 85°C.