4

LTC1480

high, the driver outputs will be fed back to the receiver and

the receive output will correspond to the driver input.

DI (Pin 4): Driver Input. If the driver outputs are enabled

(DE HIGH) then a low on DI forces the outputs A LOW and

B HIGH. A HIGH on DI with the driver outputs enabled will

force A HIGH and B LOW.

GND (Pin 5): Ground.

A (Pin 6): Driver Output/Receiver Input.

B (Pin 7): Driver Output/Receiver Input.

RO (Pin 1): Receiver Output. If the receiver output is

enabled (RE LOW) and A > B by 200mV, then RO will be

HIGH. If A < B by 200mV, then RO will be LOW.

RE (Pin 2): Receiver Output Enable. A LOW enables the

receiver output, RO. A HIGH input forces the receiver

output into a high impedance state.

DE (Pin 3): Driver Outputs Enable. A HIGH on DE enables

the driver output. A, B and the chip will function as a line

driver. A low input will force the driver outputs into a high

impedance state and the chip will function as a line

receiver. If RE is high and DE is LOW, the part will enter a

low power (1

µA) shutdown state. If RE is low and DE is

Receiver Output Low Voltage

vs Output Current

Receiver Output High Voltage

vs Output Current

OUTPUT VOLTAGE (V)

3.30

–8

–10

–12

1.30

LT1480 • TPC06

–6

–4

0

2.80

2.30

1.80

–2

–16

–14

3.05

2.55

2.05

1.55

OUTPUT VOLTAGE (V)

0

15

20

25

1.6

LTC1480 • TPC05

10

5

0

0.2 0.4 0.6

1.0

1.4

1.8

0.8

1.2

2.0

Driver Skew vs Temperature

TEMPERATURE (

°C)

–40

6.5

20

LT1480 • TPC04

5.0

4.0

–20

0

40

3.5

3.0

7.0

6.0

5.5

4.5

60

80

100

Receiver

vs Temperature

TEMPERATURE (

°C)

–40

12

10

8

6

4

2

0

20

60

LT1480 • TPC07

–20

0

40

80

100

Receiver Output Low Voltage

vs Temperature

TEMPERATURE (

°C)

–40

0.4

0.5

0.6

20

60

LTC1480 • TPC08

0.3

0.2

–20

0

40

80

100

0.1

0

1 = 8mA

Receiver Output High Voltage

vs Temperature

TEMPERATURE (

°C)

–40

2.0

2.4

3.0

0

40

60

LTC1480 • TPC09

2.2

2.8

2.6

–20

20

80

100

1 = 8mA