Datenblatt-pdf.com


MAX207 Schematic ( PDF Datasheet ) - Maxim Integrated

Teilenummer MAX207
Beschreibung +5V-Powered / Multichannel RS-232 Drivers/Receivers
Hersteller Maxim Integrated
Logo Maxim Integrated Logo 




Gesamt 23 Seiten
MAX207 Datasheet, Funktion
MAX200–MAX209/
MAX211/MAX213
+5V, RS-232 Transceivers
with 0.1μF External Capacitors
General Description
MAX200-MAX209, MAX211, and MAX213 are a family
of RS-232 and V.28 transceivers with integrated charge
pump circuitry for single +5V supply operation.
The drivers maintain the ±5V EIA/TIA-232E output signal
levels at data rates in excess of 120kbps when loaded in
accordance with the EIA/TIA-232E specification.
The MAX211 and MAX213 are available in a 28-pin, wide
small-outline (SO) package and a 28-pin shrink small-
outline (SSOP) package, which occupies only 40% of the
area of the SO. The MAX207 is available in a 24-pin SO
package and a 24-pin SSOP. The MAX203 and MAX205
use no external components and are recommended for
applications with limited circuit board space.
Benefits and Features
● Saves Board Space
• Integrated Charge Pump Circuitry
Eliminates the Need for a Bipolar ±12V Supply
Enables Single Supply Operation From Either +5V
or 9V to +12V
Integrated 0.1μF Capacitors (MAX203, MAX205)
• 24 pin SSOP Package Saves Up to 40% Versus
SO Package
● Saves Power for Longer Battery Operation
5μW Shutdown Mode (MAX200, MAX205,
MAX206, MAX211)
75μW Ring Indicator Monitoring with Two Active
Receivers (MAX213)
Applications
● Battery-Powered Equipment
● Handheld Equipment
● Portable Diagnostics Equipment
Typical Operating Circuit
+5V INPUT
0.1µF
+6.3V
0.1µF
+16V
8 C1+
10 C1-
11
C2+
12
C2-
0.1µF
7
VCC
+5V TO +10V
VOLTAGE DOUBLER
+10V TO -10V
VOLTAGE INVERTER
+5V
5 T1IN
400k
T1
+5V
4 T2IN
400k
T2
+5V
TTL/CMOS
INPUTS
14 T3IN
400k
T3
+5V
15 T4IN
400k
T4
+5V
19 T5IN
400k
T5
V+ 9
0.1µF
+6.3V
13
V-
0.1µF
+16V
T1OUT 2
T2OUT 3
T3OUT 1
RS-232
OUTPUTS
T4OUT 20
T5OUT 16
N.C. 18
MAX200
GND
6
17 SHDN
Selector Guide
PART
POWER-SUPPLY
VOLTAGE (V)
NUMBER
OF RS-232
DRIVERS
MAX200
MAX201
MAX202
MAX203
+5
+5 and +9.0 to +13.2
+5
+5
Selector Guide continued at end of data sheet.
5
2
2
2
NUMBER
OF RS-232
RECEIVERS
0
2
2
2
NUMBER OF
RECEIVERS
ACTIVE IN
SHUTDOWN
0
0
0
0
NUMBER OF
EXTERNAL
CAPACITORS
(0.1μF)
4
2
4
None
LOW-POWER
SHUTDOWN/TTL
THREE-STATE
Yes/No
No/No
No/No
No/No
19-0065; Rev 8; 1/15






MAX207 Datasheet, Funktion
MAX200–MAX209/
MAX211/MAX213
+5V, RS-232 Transceivers
with 0.1μF External Capacitors
+5V
0.1µF
0.1µF
0.1µF
0.1µF
C1+ VCC
V+
C1- MAX200-MAX209
C2+ MAX211
MAX213
C2- +5V
V-
400k
TIN
T1 T0 T5 TOUT
0.1µF
2500pF
3k
+5V
0.1µF
0.1µF
0.1µF
0.1µF
C1+ VCC
V+
C1- MAX200-MAX209
C2+ MAX211
MAX213
C2- +5V
V-
400k
TIN
T1 T0 T5 TOUT
0.1µF
50pF
7k
ROUT
R1 T0 R5
RIN
ROUT
R1 T0 R5
RIN
0V (+5V)
EN (EN)
5k
0V (+5V)
SHDN (SHDN)
MINIMUM SLEW-RATE
TEST CIRCUIT
NOTE: ( ) ARE FOR MAX213.
Figure 3. Transition Slew-Rate Test Circuit
0V (+5V)
0V (+5V)
EN (EN)
5k
SHDN (SHDN)
MAXIMUM SLEW-RATE
TEST CIRCUIT
VCC
GND
S1 C1+ S2
V+ V+
S5
C2+ S6
GND
C1
C3 IL+ RL+ C2
C4 IL- RL-
S3 S4
C1-
VCC GND
S7
C2- S8
V-
200kHz
Figure 4. Dual Charge-Pump Diagram
RS-232 Receivers
The receivers convert RS-232 signals to CMOS logic
output levels. Receiver outputs are inverting, maintaining
compatibility with driver outputs. The guaranteed receiver
input thresholds of +0.8V and +2.4V are significantly
tighter than the ±3.0V threshold required by the EIA/TIA-
232E specification. This allows receiver inputs to respond
to TTL/CMOS logic levels and improves noise margin for
RS-232 levels.
The MAX200–MAX209/MAX211/MAX213 guaranteed
+0.8V threshold (+0.6V in shutdown for the MAX213)
ensures that receivers shorted to ground have a logic 1
output. Also, the 5kΩ input resistance to ground ensures
that a receiver with its input left open also has a logic 1
output.
Receiver inputs have approximately +0.5V hysteresis.
This provides clean output transitions, even with slow rise
and fall time input signals with moderate amounts of noise
and ringing. In shutdown, the MAX213 receivers R4 and
R5 have no hysteresis.
www.maximintegrated.com
Maxim Integrated 6

6 Page









MAX207 pdf, datenblatt
MAX200–MAX209/
MAX211/MAX213
+5V, RS-232 Transceivers
with 0.1μF External Capacitors
MAX203 Pin Configurations/Typical Operating Circuit
TOP VIEW
T2IN 1
T1IN 2
R1OUT 3
R1IN 4
T1OUT 5
GND 6
VCC 7
C1+ 8
GND 9
C2- 10
MAX203
20 R2OUT
19 R2IN
18 T2OUT
17 V-
16 C2-
15 C2+
14 V+
13 C1-
12 V-
11 C2+
DIP
T2IN 1
T1IN 2
R1OUT 3
R1IN 4
T1OUT 5
GND 6
VCC 7
V+ 8
GND 9
V- 10
MAX203
20 R2OUT
19 R2IN
18 T2OUT
17 V-
16 C2-
15 C2+
14 C1-
13 C1+
12 C2+
11 C2-
SO
+5V INPUT
TTL/CMOS
INPUTS
0.1µF
+5V
7
VCC
2 T1IN
400k
T1
+5V
1 T2IN
400k
T2
T1OUT 5
T2OUT 18
RS-232
OUTPUTS
TTL/CMOS
OUTPUTS
3 R1OUT
20 R2OUT
R1
R2
DO NOT MAKE
CONNECTION TO
THESE PINS
8 (13) C1+
13 (14) C1-
INTERNAL -10V
POWER SUPPLY
12 (10)
V-
17
V-
INTERNAL +10V
POWER SUPPLY
14 (8) V+
MAX203
GND GND
69
R1IN 4
5k
R2IN 19
RS-232
INPUTS
5k
11 (12)
C2+
15
C2+
16
C2-
10 (11)
C2-
NOTE: PIN NUMBERS IN ( ) ARE FOR SO PACKAGE.
www.maximintegrated.com
Maxim Integrated 12

12 Page





SeitenGesamt 23 Seiten
PDF Download[ MAX207 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
MAX200RS-232 TransceiversMaxim Integrated
Maxim Integrated
MAX200022A/3A Fully Integrated Step-Down ConvertersMaxim Integrated
Maxim Integrated
MAX200032A/3A Fully Integrated Step-Down ConvertersMaxim Integrated
Maxim Integrated
MAX2003NiCd/NiMH Battery Fast-Charge ControllersMaxim Integrated
Maxim Integrated
MAX2003ACPENiCd/NiMH Battery Fast-Charge ControllersMaxim Integrated
Maxim Integrated

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche