SP385EET Просмотр технического описания (PDF) - Signal Processing Technologies
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SP385EET Datasheet PDF : 11 Pages
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ELECTRICAL CHARACTERISTICS
VCC = +3.3V ±10%; cap on (V+) and (V-) = 1.0µF, C1 = C2 = 0.1µF; TMIN to TMAX unless otherwise noted.
PARAMETERS
TTL INPUT
Logic Threshold
Low
High
Logic Pullup Current
Maximum Data Rate
TTL OUTPUT
TTL/CMOS Output
Voltage, Low
Voltage, High
Leakage Current; TA = +25°C
EIA-232 OUTPUT
Output Voltage Swing
MIN.
2.0
120
3.5
±5
Power-Off Output Resistance 300
Output Short Circuit Current
EIA-232 INPUT
Voltage Range
-15
Voltage Threshold
Low
0.8
High
Hysteresis
0.2
Resistance
3
DYNAMIC CHARACTERISTICS
Propagation Delay, RS-232 to TTL
Instantaneous Slew Rate
Transition Region Slew Rate
TYP.
15
0.05
±9
±18
1.2
1.7
0.5
5
1.5
10
MAX.
0.8
200
0.4
±10
+15
2.4
1.0
7
30
Output Enable Time
Output Disable Time
POWER REQUIREMENTS
VCC Power Supply Current
Shutdown Supply Current
400
250
10
15
25
1
10
UNITS
CONDITIONS
Volts
Volts
µA
kbps
TIN ; ON/OFF
TIN ; ON/OFF
TIN = 0V
CL = 2500pF, RL= 3kΩ
Volts
Volts
µA
Volts
Ω
mA
Volts
Volts
Volts
Volts
kΩ
µs
V/µs
V/µs
ns
ns
mA
mA
µA
IOUT = 3.2mA; Vcc = +5V
IOUT = -1.0mA
EN = VCC, 0V ≤ VOUT ≤ VCC
All transmitter outputs loaded
with 3kΩ to ground
VCC = 0V; VOUT = ±2V
Infinite duration
VCC = 5V, TA = +25°C
VCC = 5V, TA = +25°C
VCC = 5V, TA = +25°C
VIN = 15V to –15V
CL = 10pF, RL= 3kΩ - 7kΩ;
TA =+25°C
CL = 2500pF, RL= 3kΩ;
measured from +3V to -3V
or -3V to +3V
No load, TA= +25°C; VCC = 5V
All transmitters RL = 3kΩ;
TA = +25°C
VCC = 5V, TA = +25°C
TYPICAL PERFORMANCE CHARACTERISTICS
-11
-10
-9
-8
VCC = 6V
-7
VCC = 5V
-6
-5
VCC = 4V
-4
-3
0 2 4 6 8 10 12 14
Load Current (mA)
12
10
VCC = 6V
8
VCC = 5V
VCC = 4V
6
4
2
0
0 5 10 15 20 25 30 35 40
Load Current (mA)
30
25
VCC = 6V
20
15
VCC = 5V
10
VCC = 4V
5
VCC = 3V
0
-55 -40 0 25 70 85 125
Temperature (°C)
8.4
8.2
8.0
7.8
7.6
7.4
7.2
7.0
6.8
4.5
Load current = 0mA
TA = 25°C
4.75
5.0
5.25
5.5
VCC (Volts)
Date: 03/08/05
SP385E Enhanced +3V to +5V RS-232 Line Driver/Receiver
3
© Copyright 2005 Sipex Corporation
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