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LT1130A Datasheet(PDF) 5 Page - Linear Technology

Part No. LT1130A
Description  Advanced Low Power 5V RS232 Drivers/Receivers with Small Capacitors
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LT1130A Datasheet(HTML) 5 Page - Linear Technology

 
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5
LT1130A/LT1140A Series
ELECTRICAL C
C
HARA TERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current when OFF (VCC)
Shutdown (Note 4)
q
110
µA
Driver Disable
4
mA
Supply Rise Time
C1, C2, C +, C = 1.0
µF
2.0
ms
Shutdown to Turn-On
C +, C = 0.1
µF, C1, C2 = 0.2µF
0.2
ms
ON/OFF Pin Thresholds
Input Low Level (Device Shut Down)
q
1.4
0.8
V
Input High Level (Device Enabled)
q
2.4
1.4
V
ON/OFF Pin Current
0V
≤ VON/OFF ≤ 5V
q
–15
80
µA
DRIVER DISABLE Pin Thresholds
Input Low Level (Drivers Enabled)
q
1.4
0.8
V
Input High Level (Drivers Disabled)
q
2.4
1.4
V
DRIVER DISABLE Pin Current
0V
≤ VDRIVER DISABLE ≤ 5V
q
– 10
500
µA
Oscillator Frequency
130
kHz
Any Driver
Output Voltage Swing
Load = 3k to GND Positive
q
5
7.3
V
Negative
q
– 6.5
– 5
V
Logic Input Voltage Level
Input Low Level (VOUT = High)
q
1.4
0.8
V
Input High Level (VOUT = Low)
q
2
1.4
V
Logic Input Current
0.8V
≤ VIN ≤ 2V
q
520
µA
Output Short-Circuit Current
VOUT = 0V
±9
±17
mA
Output Leakage Current
Shutdown VOUT = ±30V (Note 4)
q
10
100
µA
Data Rate
RL = 3k, CL = 2500pF
120
kbaud
RL = 3k, CL = 1000pF
250
kbaud
Slew Rate
RL = 3k, CL = 51pF
15
30
V/
µs
RL = 3k, CL = 2500pF (Note 8)
6
V/
µs
Propagation Delay
Output Transition tHL High to Low (Note 5)
0.6
1.3
µs
Output Transition tLH Low to High
0.5
1.3
µs
Any Receiver
Input Voltage Thresholds
Input Low Threshold (VOUT = High)
q
0.8
1.3
V
Input High Threshold (VOUT = Low)
q
1.7
2.4
V
Hysteresis
q
0.1
0.4
1
V
Input Resistance
– 10V < VIN < 10V
3
5
7
k
Output Voltage
Output Low, IOUT = – 1.6mA
q
0.2
0.4
V
Output High, IOUT = 160µA (VCC = 5V)
q
3.5
4.2
V
Output Leakage Current
Shutdown (Note 4) 0
≤ VOUT ≤ VCC
q
110
µA
Output Short-Circuit Current
Sinking Current, VOUT = VCC
–20
– 10
mA
Sourcing Current, VOUT = 0V
10
20
mA
Propagation Delay
Output Transition tHL High to Low (Note 6)
250
600
ns
Output Transition tLH Low to High
350
600
ns
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Testing done at VCC = 5V and VON/OFF = 3V.
Note 3: Supply current is measured with driver and receiver outputs
unloaded and the driver inputs tied high.
Note 4: Supply current and driver leakage current measurements in shut-
down are performed with VON/OFF = 0.1V. Supply current measurements
using DRIVER DISABLE are performed with VDRIVER DISABLE = 3V. For
LT1135, LT1139, LT1140 and LT1141 with 12V supplies, VOUT leakage is
200
µA for VOUT forced to ±25V.
Note 5: For driver delay measurements, RL = 3k and CL = 51pF. Trigger
points are set between the driver’s input logic threshold and the output
transition to the zero crossing (tHL = 1.4V to 0V and tLH = 1.4V to 0V).
Note 6: For receiver delay measurements, CL = 51pF. Trigger points
are set between the receiver’s input logic threshold and the output
transition to standard TTL/CMOS logic threshold (tHL = 1.3V to 2.4V
and tLH = 1.7V to 0.8V).
Note 7: For LT1133A/LT1137A, absolute maximum externally applied
V = – 6.5V. Internal charge pump will drive this pin to a higher nega-
tive voltage.
Note 8: For LT1137A, 4V/
µs minimum.
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2)


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