MAX3182EEUK+ [MAXIM]
Line Receiver, 1 Func, 1 Rcvr, CMOS, PDSO5, SOT-23, 5 PIN;
| 型号： | MAX3182EEUK+ |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Line Receiver, 1 Func, 1 Rcvr, CMOS, PDSO5, SOT-23, 5 PIN 光电二极管 接口集成电路 |
| 文件： | 总8页 (文件大小：157K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1479; Rev 1; 7/99
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5
0–MAX183E
General Description
Features
The MAX3180E–MAX3183E single RS-232 receivers in
a SOT23-5 package are designed for space- and cost-
constrained applications requiring minimal RS-232
communications. The receiver inputs are protected to
±15kV using IEC 1000-4-2 Air-Gap Discharge, to ±8kV
using IEC 1000-4-2 Contact Discharge, and to ±15kV
per the Human Body Model, ensuring compliance with
international standards.
♦ Tiny SOT23-5 Package
♦ ESD-Protected RS-232 Input
±15kV—Human Body Model
±8kV—IEC 1000-4-2, Contact Discharge
±15kV—IEC 1000-4-2, Air-Gap Discharge
♦ 0.5µA Supply Current
♦ 1.5Mbps Guaranteed Data Rate
The devices minimize power and heat dissipation by
consuming only 0.5µA supply current from a +3.0V to
+5.5V supply, and they guarantee true RS-232 perfor-
mance up to a 1.5Mbps data rate. The MAX3180E/
MAX3182E feature a three-state TTL/CMOS receiver
output that is controlled by an EN logic input. The
MAX3181E/MAX3183E feature an INVALID output that
indicates valid RS-232 signals at the receiver input for
applications requiring automatic system wake-up. The
MAX3182E/MAX3183E have a noninverting output,
while the MAX3180E/MAX3181E have a standard
inverting output.
♦ Meets EIA/TIA-232 and V.28/V.24 Specifications
Down to V
= +3.0V
CC
♦ INVALID Output Indicates Valid RS-232 Signal at
Receiver Input (MAX3181E/MAX3183E)
♦ Three-State TTL/CMOS Receiver Output
(MAX3180E/MAX3182E)
♦ Noninverting RS-232 Output
(MAX3182E/MAX3183E)
Applications
Diagnostic Ports
Ordering Information
PIN-
TOP
PART
TEMP. RANGE
PACKAGE
MARK
Telecommunications
MAX3180EEUK-T -40°C to +85°C 5 SOT23-5
MAX3181EEUK-T -40°C to +85°C 5 SOT23-5
MAX3182EEUK-T -40°C to +85°C 5 SOT23-5
MAX3183EEUK-T -40°C to +85°C 5 SOT23-5
ACHB
ACHC
ACHD
ACHE
Networking Equipment
Set-Top Boxes
Digital Cameras
Hand-Held Equipment
Pin Configurations/Functional Diagrams appear at end of
data sheet.
Selector Guide
ESD
PROTECTION
(kV)
SUPPLY
CURRENT
(µA)
NON-
INVERTING
ROUT
INVERTING
ROUT
EN
INPUT
INVALID
OUTPUT
PART
PACKAGE
✓
✓
✓
MAX3180E
MAX3181E
MAX3182E
MAX3183E
±15
±15
±15
±15
SOT23-5
SOT23-5
SOT23-5
SOT23-5
0.5
0.5
0.5
0.5
—
—
—
✓
✓
✓
—
✓
—
—
—
✓
—
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5
ABSOLUTE MAXIMUM RATINGS
V
to GND..............................................................-0.3V to +6V
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
CC
RIN to GND..........................................................................±25V
EN, ROUT, INVALID to GND ......................-0.3V to (V + 0.3V)
CC
Continuous Power Dissipation (T = +70°C)
A
SOT23-5 (derate 7.1mW/°C above +70°C)...................571mW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
= +3.0V to +5.5V, T = T
to T
, unless otherwise noted. Typical values are at V
= +5.0V, T = +25°C.) (Note 1)
CC A
CC
A
MIN
MAX
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DC CHARACTERISTICS
Supply Voltage
V
3.0
5.5
5.0
V
CC
Supply Current
I
V
CC
= 3.3V or 5V, RIN = V or GND no load
0.5
µA
CC
CC
,
LOGIC INPUT (EN)
Logic Threshold Low
V
0.8
V
V
IL
0–MAX183E
V
V
= 3.3V
= 5.0V
2.0
2.4
CC
CC
Logic Threshold High
V
IH
Leakage Current
I
±0.01
±1.0
0.4
µA
EN
LOGIC OUTPUT
V
V
I
= 1.6mA
V
V
INVALID Output Voltage Low
IOL
SINK
V
0.6
-
CC
I
= 1.0mA
INVALID Output Voltage High
IOH
SOURCE
RECEIVER INPUT
Input Voltage Range
V
-25
0.6
0.8
25
V
V
RIN
V
V
V
V
= 3.3V
1.2
1.5
1.5
1.8
300
CC
CC
CC
CC
Input Threshold Low
V
ITL
= 5.0V
= 3.3V
= 5.0V
2.4
2.7
Input Threshold High
Input Hysteresis
V
V
mV
V
ITH
V
HYST
Positive threshold
Negative threshold
2.7
RIN Threshold to INVALID
Output High
V
ITOH
-2.7
-0.3
3
RIN Threshold to INVALID
Output Low
V
0.3
7
V
ITOL
Input Resistance
R
5
kΩ
RIN
RECEIVER OUTPUT
Output Leakage Current
Output Voltage Low
I
Receiver disabled
±0.05
±10
0.4
µA
V
ROUT
V
I
= 1.6mA
OL
SINK
V
0.6
-
V
0.1
-
CC
CC
Output Voltage High
V
I
= 1.0mA
V
OH
SOURCE
2
_______________________________________________________________________________________
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5
0–MAX183E
ELECTRICAL CHARACTERISTICS (continued)
(V
= +3.0V to +5.5V, T = T
to T
, unless otherwise noted. Typical values are at V
= +5.0V, T = +25°C.) (Note 1)
CC A
CC
A
MIN
MAX
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TIMING CHARACTERISTICS
Maximum Data Rate
C = 50pF
1.5
Mbps
µs
L
Receiver Propagation Delay,
High-to-Low
t
t
RIN to ROUT; C = 150pF
0.15
0.15
PHL
PLH
L
Receiver Propagation Delay,
Low-to-High
RIN to ROUT; C = 150pF
µs
L
Receiver Skew
t
50
ns
ns
ns
t
- t
, Figure 1
|
RS
PHL PLH
|
Receiver Output Enable Time
Receiver Output Disable Time
t
200
200
ROE
ROD
t
Receiver Positive or Negative
Threshold to INVALID High
t
250
30
ns
µs
INVH
Receiver Positive or Negative
Threshold to INVALID Low
t
INVL
Note 1: Specifications are 100% tested at T = +25°C. Limits over temperature are guaranteed by design.
A
Typical Operating Characteristics
(V
= +5V, T = +25°C, unless otherwise noted.)
A
CC
RIN TO INVALID HIGH
vs. SUPPLY VOLTAGE
SUPPLY CURRENT vs. DATA RATE
350
0.7
R = 50kΩ
L
C = 100pF
L
0.6
0.5
0.4
0.3
0.2
0.1
0
330
310
290
V
= 5V
CC
V
CC
= 3.3V
270
250
230
3.0
3.5
4.0
4.5
(V)
5.0
5.5
0
0.5
1.0
1.5
V
DATA RATE (Mbps)
CC
_______________________________________________________________________________________
3
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5
Typical Operating Characteristics (continued)
(V
= +5V, T = +25°C, unless otherwise noted.)
A
CC
MAX3180E
ENABLE ASSERTION TO ROUT RESPONSE
RIN TO INVALID LOW vs. V
CC
60
55
50
45
40
35
30
25
10V
0
RIN
-10V
5V
0
ROUT
5V
V
= 5.0V
CC
ENABLE
R = 50kΩ
0
L
C = 100pF
L
3.0
3.5
4.0
4.5
(V)
5.0
5.5
500ns/div
V
CC
Pin Description
0–MAX183E
NAME
PIN
FUNCTION
MAX3180E
MAX3181E
MAX3182E
MAX3183E
–
INVALID
GND
ROUT
–
–
INVALID
GND
–
Receiver Output Enable
EN
–
EN
–
1
2
3
Output of the Valid Input Detector
Ground
GND
ROUT
–
GND
–
Inverting Receiver Output
Noninverting Receiver Output
Receiver Input
ROUT
RIN
ROUT
RIN
4
5
RIN
RIN
V
CC
V
CC
V
CC
V
CC
Supply Voltage
Detailed Description
The MAX3180E–MAX3183E are EIA/TIA-232 and V.28/
V.24 communications receivers that convert RS-232
signals to CMOS logic levels. They operate on a +3V to
+5.5V supply, have 1.5Mbps data rate capability, and
feature enhanced electrostatic discharge (ESD) protec-
tion (see ESD Protection). All of these devices achieve
a typical supply current of 0.5µA. The MAX3180E/
MAX3182E have a receiver enable control (EN). The
MAX3181E/MAX3183E contain a signal invalid output
(INVALID). The MAX3180E/MAX3181E invert the ROUT
signal relative to RIN (standard RS-232). The
MAX3182E/MAX3183E outputs are not inverted. The
devices come in tiny SOT23-5 packages.
5V
50%
50%
RIN
0
t
t
PHL
PLH
V
OH
ROUT
50%
50%
V
OL
Figure 1. Receiver Propagation-Delay Timing
4
_______________________________________________________________________________________
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5
0–MAX183E
VALID SIGNALS
RECEIVER
+2.7V
INPUT
VOLTAGE
(V)
INVALID
REGION
INDETERMINATE
+0.3V
0
INVALID SIGNALS
INDETERMINATE
-0.3V
V
CC
INVALID
OUTPUT
(V)
-2.7V
0
t
t
INVH
INVL
VALID SIGNALS
Figure 2. Input Levels and INVALID Timing
Signal Invalid Detector
If no valid signal levels appear on RIN for 30µs (typ),
INVALID goes low. This event typically occurs if the
RS-232 cable is disconnected, or if the connected
peripheral transmitter is turned off. INVALID goes high
when a valid level is applied to the RS-232 receiver
input. Figure 2 shows the input levels and timing dia-
gram for INVALID operation.
R
R
D
C
1500Ω
1MΩ
DISCHARGE
RESISTANCE
CHARGE-CURRENT
LIMIT RESISTOR
HIGH-
VOLTAGE
DC
DEVICE
UNDER
TEST
C
s
STORAGE
CAPACITOR
100pF
Enable Input
The MAX3180E/MAX3182E feature an enable input
(EN). Drive EN high to force ROUT into a high-imped-
ance state. In this state, the devices ignore incoming
RS-232 signals. Pull EN low for normal operation.
SOURCE
ESD Protection
As with all Maxim devices, ESD protection structures
are incorporated on all pins to protect against ESD
encountered during handling and assembly. The
receiver inputs of the MAX3180E–MAX3183E have extra
protection against static electricity. Maxim’s engineers
have developed state-of-the-art structures enabling
these pins to withstand ESD up to ±15kV without dam-
age or latchup. The receiver inputs of the MAX3180E–
MAX3183E are characterized for protection to the fol-
lowing limits:
Figure 3. Human Body ESD Test Model
I 100%
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
I
P
r
90%
AMPERES
36.8%
10%
0
•
•
±15kV using the Human Body Model
TIME
0
±8kV using the Contact Discharge method specified
in IEC 1000-4-2
t
RI
t
DL
CURRENT WAVEFORM
•
±15kV using the Air-Gap Discharge method speci-
fied in IEC 1000-4-2
Figure 4. Human Body Model Current Waveform
Human Body Model
Figure 3 shows the Human Body Model, and Figure 4
shows the current waveform it generates when dis-
charged into a low impedance. This model consists of
a 100pF capacitor charged to the ESD voltage of inter-
est, and then discharged into the test device through a
1.5kΩ resistor.
_______________________________________________________________________________________
5
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5
IEC 1000-4-2
The IEC 1000-4-2 standard covers ESD testing and
performance of finished equipment; it does not specifi-
cally refer to ICs. The MAX3180E–MAX3183E enable the
design of equipment that meets the highest level (Level
4) of IEC 1000-4-2 without the need for additional ESD-
protection components.
current waveform for the ±8kV IEC 1000-4-2 Level 4
ESD Contact Discharge test.
The Air-Gap test involves approaching the device with
a charged probe. The Contact Discharge method con-
nects the probe to the device before the probe is ener-
gized.
Power-Supply Decoupling
The major difference between tests done using the
Human Body Model and IEC 1000-4-2 is higher peak
current in IEC 1000-4-2. Because series resistance is
lower in the IEC 1000-4-2 model, the ESD withstand
voltage measured to this standard is generally lower
than that measured using the Human Body. Figure 5
shows the IEC 1000-4-2 model, and Figure 6 shows the
In most circumstances, a 0.1µF V
bypass capacitor
CC
is adequate. Connect the bypass capacitor as close to
the IC as possible.
R
I
R
C
D
0–MAX183E
50MΩ TO 100MΩ
330Ω
100%
90%
DISCHARGE
RESISTANCE
CHARGE-CURRENT
LIMIT RESISTOR
HIGH-
VOLTAGE
DC
DEVICE
UNDER
TEST
C
s
150pF
STORAGE
CAPACITOR
SOURCE
10%
t = 0.7ns TO 1ns
R
t
30ns
60ns
Figure 6. IEC 1000-4-2 ESD Generator Current Waveform
Figure 5. IEC 1000-4-2 ESD Test Model
6
_______________________________________________________________________________________
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5
0–MAX183E
Pin Configurations/Functional Diagrams
TOP VIEW
MAX3180E
MAX3181E
5k
MAX3182E
MAX3183E
5k
EN (INVALID)
GND
1
2
3
5
4
V
EN (INVALID)
GND
1
2
3
5
4
V
CC
CC
ROUT
RIN
ROUT
RIN
SOT23-5
SOT23-5
( ) ARE FOR MAX3181E/MAX3183E ONLY.
___________________Chip Information
TRANSISTOR COUNT: 41
_______________________________________________________________________________________
7
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5
Package Information
0–MAX183E
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 1999 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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