LTC490IN8-PBF Ver la hoja de datos (PDF) - Linear Technology
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LTC490IN8-PBF Datasheet PDF : 12 Pages
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LTC490
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage (VCC) ............................................... 12V
Driver Input Currents ........................... – 25mA to 25mA
Driver Input Voltages ...................... –0.5V to VCC + 0.5V
Driver Output Voltages .......................................... ±14V
Receiver Input Voltages ......................................... ±14V
Receiver Output Voltages ............... –0.5V to VCC + 0.5V
Operating Temperature Range
LTC490C ................................................ 0°C to 70°C
LTC490I ............................................. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
VCC 1
R2
8A
R
7B
D3
D
GND 4
6Z
5Y
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 125°C, θJA = 100°C/ W (N8)
TJMAX = 150°C, θJA = 150°C/ W (S8)
ORDER PART
NUMBER
LTC490CN8
LTC490CS8
LTC490IN8
LTC490IS8
S8 PART MARKING
490
490I
Consult LTC Marketing for parts specified with wider operating temperature ranges.
DC ELECTRICAL CHARACTERISTICS The q denotes the specificatiions which apply over the full
operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5V ±5%
SYMBOL
VOD1
VOD2
PARAMETER
Differential Driver Output Voltage (Unloaded)
Differential Driver Output Voltage (with Load)
∆VOD
VOC
∆ VOC
VIH
VIL
lIN1
lIN2
Change in Magnitude of Driver Differential Output
Voltage for Complementary Output States
Driver Common Mode Output Voltage
Change in Magnitude of Driver Common Mode
Output Voltage for Complementary Output States
Input High Voltage (D)
Input Low Voltage (D)
Input Current (D)
Input Current (A, B)
VTH
∆VTH
VOH
VOL
IOZR
ICC
RIN
IOSD1
IOSD2
IOSR
IOZ
Differential Input Threshold Voltage for Receiver
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State Output Current at Receiver
Supply Current
Receiver Input Resistance
Driver Short-Circuit Current, VOUT = High
Driver Short-Circuit Current, VOUT = Low
Receiver Short-Circuit Current
Driver Three-State Output Current
CONDITIONS
IO = 0
q
R = 50Ω (RS422)
q
R = 27Ω (RS485) (Figure 1)
q
R = 27Ω or R = 50Ω (Figure 1) q
R = 27Ω or R = 50Ω (Figure 1) q
R = 27Ω or R = 50Ω (Figure 1) q
q
q
q
VCC = 0V or 5.25V VIN = 12V q
VIN = – 7V q
– 7V ≤ VCM ≤12V
q
VCM = 0V
q
IO = –4mA, VID = 0.2V
q
IO = 4mA, VID = – 0.2V
q
VCC = Max 0.4V ≤ VO ≤ 2.4V
q
No Load; D = GND or VCC
q
– 7V ≤ VO ≤ 12V
q
VO = – 7V
q
VO = 12V
q
0V ≤ VO ≤ VCC
q
VO = – 7V to 12V
q
MIN TYP MAX
5
2
1.5
5
0.2
3
0.2
2.0
0.8
±2
1
– 0.8
– 0.2
0.2
70
3.5
0.4
±1
300 500
12
100 250
100 250
7
85
±2 ±200
UNITS
V
V
V
V
V
V
V
V
µA
mA
mA
V
mV
V
V
µA
µA
kΩ
mA
mA
mA
µA
490fb
2
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