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LT1537CG Datasheet

  • LT1537CG

  • Linear Technology [Advanced Low Power 5V RS232 Transceiver ...

  • 251.96KB

  • LINER

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LT1537
ELECTRICAL CHARACTERISTICS
PARAMETER
Any Driver
Output Leakage Current
Data Rate
Slew Rate
Propagation Delay
Any Receiver
Input Voltage Thresholds
Hysteresis
Input Resistance
Output Voltage
Output Leakage Current
Output Short-Circuit Current
Propagation Delay
CONDITIONS
(Note 2)
MIN
q
TYP
10
MAX
100
UNITS
碌A(chǔ)
kBaud
kBaud
V/碌s
V/碌s
碌s
碌s
V
V
V
k鈩?/div>
V
V
碌A(chǔ)
mA
mA
ns
ns
Shutdown V
OUT
=
鹵15V
(Note 4)
R
L
= 3k, C
L
= 2500pF
R
L
= 3k, C
L
= 1000pF
R
L
= 3k, C
L
= 51pF
R
L
= 3k, C
L
= 2500pF
Output Transition t
HL
HIGH to LOW (Note 5)
Output Transition t
LH
LOW to HIGH
Input LOW Threshold (V
OUT
= HIGH)
Input HIGH Threshold (V
OUT
= LOW)
V
IN
=
鹵10V
Output LOW, I
OUT
= 鈥?1.6mA
Output HIGH, I
OUT
= 160碌A(chǔ) (V
CC
= 5V)
Shutdown (Note 4) 0
鈮?/div>
V
OUT
鈮?/div>
V
CC
Sinking Current, V
OUT
= V
CC
Sourcing Current, V
OUT
= 0V
Output Transition t
HL
HIGH to LOW (Note 6)
Output Transition t
LH
LOW to HIGH
120
250
4
15
15
0.6
0.5
1.3
1.7
0.4
5
0.2
4.2
1
鈥?20
20
250
350
30
1.3
1.3
q
q
q
q
q
q
0.8
0.1
3
3.5
2.4
1.0
7
0.4
10
鈥?10
600
600
10
The
q
denotes specifications which apply over the operating temperature
range (0擄C
鈮?/div>
T
A
鈮?/div>
70擄C for commercial grade and 鈥?40擄C
鈮?/div>
T
A
鈮?/div>
85擄C for
industrial grade).
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2:
Testing done at V
CC
= 5V and V
ON/OFF
= 3V. C1 = C2 = 0.2碌F,
C
+
= C
鈥?/div>
= 0.1碌F.
Note 3:
Supply current is measured with driver and receiver outputs
unloaded and the driver inputs tied high.
Note 4:
Supply current and leakage current measurements in shutdown
are performed with V
ON/OFF
= 0.1V. Supply current measurements using
DRIVER DISABLE are performed with V
DRIVER DISABLE
= 3V.
Note 5:
For driver delay measurements, R
L
= 3k and C
L
= 51pF. Trigger
points are set between the driver鈥檚 input logic threshold and the output
transition to the zero crossing (t
HL
= 1.4V to 0V and t
LH
= 1.4V to 0V).
Note 6:
For receiver delay measurements, C
L
= 51pF. Trigger points are set
between the receiver鈥檚 input logic threshold and the output transition to
standard TTL/CMOS logic threshold (t
HL
= 1.3V to 2.4V and t
LH
= 1.7V to
0.8V).
Note 7:
Absolute maximum externally applied voltage. Internal charge
pump may force a larger value on this pin.
TYPICAL PERFOR A CE CHARACTERISTICS
Driver Output Voltage
10
8
OUTPUT HIGH
3.00
2.75
THRESHOLD VOLTAGE (V)
DRIVER OUTPUT VOLTAGE (V)
6
4
2
0
鈥?
鈥?
鈥?
鈥?
鈥?0
鈥?0 鈥?5
OUTPUT LOW
50
25
0
75
TEMPERATURE (擄C)
R
L
= 3k
100
125
V
CC
= 5V
V
CC
= 5.5V
V
CC
= 4.5V
V
CC
= 5.5V
V
CC
= 5V
V
CC
= 4.5V
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
鈥?5 鈥?5
50
25
0
75
TEMPERATURE (擄C)
100
125
INPUT LOW
INPUT HIGH
SUPPLY CURRENT (mA)
U W
LT1537 鈥?TPC01
Receiver Input Thresholds
80
70
60
50
40
30
20
10
0
Supply Current vs Data Rate
3 DRIVERS ACTIVE
R
L
= 3k
C
L
= 2500pF
2.50
0
25
100
75
DATA RATE (kBAUD)
50
125
150
ILT1537 鈥?TPC02
LTX1537 鈥?TPC03
3

LT1537CG 產(chǎn)品屬性

  • LT1537

  • 47

  • 集成電路 (IC)

  • 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器

  • -

  • 收發(fā)器

  • 3/5

  • RS232

  • 4.5 V ~ 5.5 V

  • 表面貼裝

  • 28-SSOP（0.209"，5.30mm 寬）

  • 28-SSOP

  • 管件

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