LTC1485CN8#PBF datasheet, PDF - EEWORLD Datasheet

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LTC1485CN8#PBF: DescriptionIC TXRX DIFFERNTIAL BUS 8-DIP; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size192KB，14 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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LTC1485CN8#PBF Overview

IC TXRX DIFFERNTIAL BUS 8-DIP

LTC1485CN8#PBF Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	conform to
Parts packaging code	DIP
package instruction	DIP, DIP8,.3
Contacts	8
Manufacturer packaging code	N
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	COMMON I/O; TRISTATABLE RECEIVER; 1 RECEIVER ACTIVE UNDER SHUTDOWN
Differential output	YES
Number of drives	1
Input properties	DIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit type	LINE TRANSCEIVER
Interface standards	EIA-422; EIA-485
JESD-30 code	R-PDIP-T8
JESD-609 code	e3
Humidity sensitivity level	1
Number of functions	1
Number of terminals	8
Maximum operating temperature	70 °C
Minimum operating temperature
Minimum output swing	1.5 V
Output characteristics	3-STATE
Maximum output low current	0.004 A
Output polarity	COMPLEMENTARY
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Encapsulate equivalent code	DIP8,.3
Package shape	RECTANGULAR
Package form	IN-LINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	5 V
Certification status	Not Qualified
Maximum receive delay	55 ns
Number of receiver bits	1
Maximum seat height	3.937 mm
Maximum slew rate	2.3 mA
Maximum supply voltage	5.25 V
Minimum supply voltage	4.75 V
Nominal supply voltage	5 V
surface mount	NO
technology	BICMOS
Temperature level	COMMERCIAL
Terminal surface	Matte Tin (Sn)
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
maximum transmission delay	50 ns
width	7.62 mm
Base Number Matches	1

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LTC1485

Differential

Bus Transceiver

FEATURES

DESCRIPTION

The

LTC

1485

is a low power differential bus/line trans-

ceiver designed for multipoint data transmission standard

RS485 applications with extended common-mode range

(12V to –7V). It also meets the requirements of RS422.

The CMOS with Schottky design offers significant power

savings over its bipolar counterpart without sacrificing

ruggedness against overload or ESD damage.

The driver and receiver feature three-state outputs, with

the driver outputs maintaining high impedance over the

entire common-mode range. Excessive power dissipa-

tion caused by bus contention or faults is prevented by a

thermal shutdown circuit which forces the driver outputs

into a high impedance state. I/O pins are protected against

multiple ESD strikes of over ±10kV.

The receiver has a fail-safe feature which guarantees a

high output state when the inputs are left open.

Both AC and DC specifications are guaranteed from –40°C

to 85°C and 4.75V to 5.25V supply voltage range.

LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

ESD Protection Over ±10kV

Low Power: I

= 1.8mA Typ

28ns Typical Driver Propagation Delays

with 4ns Skew

Designed for RS485 or RS422 Applications

Single 5V Supply

−7V to 12V Bus Common-Mode Range Permits

±7V Ground Difference Between Devices on the Bus

Thermal Shutdown Protection

Power-Up/Down Glitch-Free Driver Outputs

Driver Maintains High Impedance in Three-State or

with the Power Off

Combined Impedance of a Driver Output and

Receiver Allows up to 32 Transceivers on the Bus

60mV Typical Input Hysteresis

Pin-Compatible with the SN75176A, DS75176A,

and SN75LBC176

APPLICATIONS

Low Power RS485/RS422 Transceiver

Level Translator

TYPICAL APPLICATION

LTC1485

DRIVER

120Ω

DRIVER

LTC1485

4000 FT 24 GAUGE TWISTED PAIR

RECEIVER

1485 TA01

1485fb

For more information

www.linear.com/LTC1485

LTC1485CN8#PBF Related Products

	LTC1485CN8#PBF	LTC1485IS8#TRPBF	LTC1485IS8#PBF	LTC1485IN8#PBF
Description	IC TXRX DIFFERNTIAL BUS 8-DIP	IC TXRX DIFFERNTIAL BUS 8-SOIC	IC TXRX DIFFERNTIAL BUS 8-SOIC	IC TXRX DIFFERNTIAL BUS 8-DIP
Brand Name	Linear Technology	Linear Technology	Linear Technology	Linear Technology
Is it Rohs certified?	conform to	conform to	conform to	conform to
Parts packaging code	DIP	SOIC	SOIC	DIP
package instruction	DIP, DIP8,.3	SOP, SOP8,.25	SOP, SOP8,.25	DIP, DIP8,.3
Contacts	8	8	8	8
Manufacturer packaging code	N	S8	S8	N
Reach Compliance Code	compliant	compliant	compliant	compliant
ECCN code	EAR99	EAR99	EAR99	EAR99
Other features	COMMON I/O; TRISTATABLE RECEIVER; 1 RECEIVER ACTIVE UNDER SHUTDOWN	COMMON I/O; TRISTATABLE RECEIVER; 1 RECEIVER ACTIVE UNDER SHUTDOWN	COMMON I/O; TRISTATABLE RECEIVER; 1 RECEIVER ACTIVE UNDER SHUTDOWN	COMMON I/O; TRISTATABLE RECEIVER; 1 RECEIVER ACTIVE UNDER SHUTDOWN
Differential output	YES	YES	YES	YES
Number of drives	1	1	1	1
Input properties	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit type	LINE TRANSCEIVER	LINE TRANSCEIVER	LINE TRANSCEIVER	LINE TRANSCEIVER
Interface standards	EIA-422; EIA-485	EIA-422; EIA-485	EIA-422; EIA-485	EIA-422; EIA-485
JESD-30 code	R-PDIP-T8	R-PDSO-G8	R-PDSO-G8	R-PDIP-T8
JESD-609 code	e3	e3	e3	e3
Humidity sensitivity level	1	1	1	1
Number of functions	1	1	1	1
Number of terminals	8	8	8	8
Maximum operating temperature	70 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-	-40 °C	-40 °C	-40 °C
Minimum output swing	1.5 V	1.5 V	1.5 V	1.5 V
Output characteristics	3-STATE	3-STATE	3-STATE	3-STATE
Maximum output low current	0.004 A	0.004 A	0.004 A	0.004 A
Output polarity	COMPLEMENTARY	COMPLEMENTARY	COMPLEMENTARY	COMPLEMENTARY
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	DIP	SOP	SOP	DIP
Encapsulate equivalent code	DIP8,.3	SOP8,.25	SOP8,.25	DIP8,.3
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	IN-LINE	SMALL OUTLINE	SMALL OUTLINE	IN-LINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	260	260	NOT SPECIFIED
power supply	5 V	5 V	5 V	5 V
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum receive delay	55 ns	55 ns	55 ns	55 ns
Number of receiver bits	1	1	1	1
Maximum seat height	3.937 mm	1.752 mm	1.752 mm	3.937 mm
Maximum slew rate	2.3 mA	2.3 mA	2.3 mA	2.3 mA
Maximum supply voltage	5.25 V	5.25 V	5.25 V	5.25 V
Minimum supply voltage	4.75 V	4.75 V	4.75 V	4.75 V
Nominal supply voltage	5 V	5 V	5 V	5 V
surface mount	NO	YES	YES	NO
technology	BICMOS	BICMOS	BICMOS	BICMOS
Temperature level	COMMERCIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	THROUGH-HOLE	GULL WING	GULL WING	THROUGH-HOLE
Terminal pitch	2.54 mm	1.27 mm	1.27 mm	2.54 mm
Terminal location	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	30	30	NOT SPECIFIED
maximum transmission delay	50 ns	50 ns	50 ns	50 ns
width	7.62 mm	3.899 mm	3.899 mm	7.62 mm
Base Number Matches	1	1	1	-

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