LT1081CSW datasheet(3/12 Pages) LINER

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LT1080/LT1081

ELECTRICAL C

HARA TERISTICS The q denotes the specifications which apply over the full operating

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Driver

Output Voltage Swing

Load = 3k to GND Both Outputs

Positive

7.3

Negative

–5

–6.5

Logic Input Voltage Level

Input Low Level (VOUT = High)

1.4

0.8

Input High Level (VOUT = Low)

1.4

Logic Input Current

VIN ≥ 2V

520

µA

VIN ≤ 0.8V

520

µA

Output Short-Circuit Current

Sourcing Current, VOUT = 0V

Sinking Current, VOUT = 0V

–9

–12

Output Leakage Current

SHUTDOWN (Note 3), VOUT = ±30V

100

µA

Data Rate (Note 6)

RL = 3k, CL = 2500pF

120

kBd

RL = 3k, CL = 1000pF

250

kBd

Slew Rate

RL = 3k, CL = 51pF

µs

Receiver

Input Voltage Thresholds

Input Low Threshold

Commercial

0.8

1.3

Industrial and Military

0.2

1.3

Input High Threshold

Commercial

1.7

2.4

Industrial and Military

1.7

3.0

Hysteresis

0.1

0.4

Input Resistance

VIN = ±10V

Ω

Output Voltage

Output Low, IOUT = –1.6mA

0.2

0.4

Output High, IOUT = 160µA (VCC = 5V)

3.5

4.8

Output Short-Circuit Current

Sinking Current, VOUT = VCC

–10

–20

Sourcing Current, VOUT = 0V

0.6

Output Leakage Current

SHUTDOWN (Note 3), 0V

≤ VOUT ≤ VCC

110

µA

Power Supply Generator (Note 4)

V+ Output Voltage

IOUT = 0mA

8.0

9.0

IOUT = 10mA

7.0

8.0

IOUT = 15mA

6.5

7.5

V– Output Voltage

IOUT = 0mA

–7.5

–8.5

IOUT = –10mA

–5.5

–6.5

IOUT = –15mA

–5.0

–6.0

Supply Current

Supply Leakage Current (VCC)

SHUTDOWN (Note 3), LT1080 Only

100

µA

ON/OFF Pin Current

≤ VON/OFF ≤ 5V, LT1080 Only

–15

µA

Supply Rise Time

(Note 5), LT1080 Only

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: These parameters apply for 4.5V

≤ VCC ≤ 5.5V and VON/OFF = 3V,

unless otherwise specified.

Note 3: VON/OFF = 0.4V for –55°C ≤ TA ≤ 50°C, and VON/OFF = 0.2V for

°C ≤ TA ≤ 125°C. (LT1080 only)

Note 4: Unless otherwise specified, VCC = 5V, external loading of V

+ and

V– equals zero and the driver outputs are low (inputs high).

Note 5: Time from either SHUTDOWN high or power on until V+

≥ 6V and

V–

≤ –6V. All external capacitors are 1µF.

Note 6: Data rate operation guaranteed by slew rate, short-circuit current

and propagation delay tests.

temperature range, otherwise specifications are at TA = 25°C. (Note 2)

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