|
|
PDF ADM3222 Data sheet ( Hoja de datos )
| Número de pieza | ADM3222 | |
| Descripción | Line Drivers/Receivers | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ADM3222 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
|
No Preview Available !
FEATURES
460 kbps data rate
Specified at 3.3 V
Meets EIA-232E specifications
0.1 μF charge pump capacitors
Low power shutdown (ADM3222 and ADM1385)
PDIP, SOIC_N, SOIC_W, SSOP, and TSSOP options
Upgrade for MAX3222/MAX3232 and LTC1385
ESD protection to IEC 1000-4-2 (801.2)
on RS-232 pins (ADM3202 only)
±8 kV: contact discharge
±15 kV: air gap discharge
APPLICATIONS
General-purpose RS-232 data link
Portable instruments
Printers, palmtop computers, PDAs
GENERAL DESCRIPTION
The ADM3202/ADM3222/ADM1385 transceivers are high
speed, 2-channel RS-232/V.28 interface devices that operate
from a single 3.3 V power supply. Low power consumption and
a shutdown facility (ADM3222/ADM1385) make them ideal for
battery-powered portable instruments.
The ADM3202/ADM3222/ADM1385 parts conform to the
EIA-232E and CCITT V.28 specifications and operate at data
rates up to 460 kbps.
Four external 0.1 μF charge pump capacitors are used for the
voltage doubler/inverter, permitting operation from a single
3.3 V supply.
The ADM3222 contains additional enable and shutdown
circuitry. The EN input can be used to three-state the receiver
outputs. The SD input is used to power down the charge pump
and transmitter outputs, reducing the quiescent current to less
than 0.5 μA. The receivers remain enabled during shutdown
unless disabled using EN.
The ADM1385 contains a driver disable mode and a complete
shutdown mode.
The ADM3202 is available in a 16-lead PDIP, SOIC_W, and
SOIC_N, as well as a space-saving 16-lead TSSOP. The ADM3222
is available in 18-lead PDIP and SOIC_W and in 20-lead SSOP
and TSSOP. The ADM1385 is available in a 20-lead SSOP,
which is pin-compatible with the LTC1385 CG.
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
Low Power, 3.3 V, RS-232
Line Drivers/Receivers
ADM3202/ADM3222/ADM1385
FUNCTIONAL BLOCK DIAGRAMS
+3.3V INPUT
0.1µF +
10V
0.1µF +
10V
CMOS
INPUTS
T1IN
T2IN
C1+
C1–
+3.3V TO +6.6V
VOLTAGE
DOUBLER
VCC
V+
C2+ +6.6V TO –6.6V V–
C2–
VOLTAGE
INVERTER
T1
T2
C3
0.1µF
6.3V
C5
0.1µF
C4
0.1µF
10V
T1OUT
T2OUT
EIA/TIA-232
OUTPUTS
CMOS
OUTPUTS
R1OUT
R2OUT
R1
R2
GND ADM3202
R1IN
R2IN
EIA/TIA-232
INPUTS*
*INTERNAL 5kΩ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
Figure 1.
+3.3V INPUT
0.1µF +
10V
0.1µF +
10V
CMOS
INPUTS
T1IN
T2IN
C1+
C1–
+3.3V TO +6.6V
VOLTAGE
DOUBLER
VCC
V+
C2+ +6.6V TO –6.6V V–
C2–
VOLTAGE
INVERTER
T1
T2
C3
0.1µF
6.3V
C5
0.1µF
C4
0.1µF
10V
T1OUT
T2OUT
EIA/TIA-232
OUTPUTS
CMOS
OUTPUTS
R1OUT
R2OUT
R1
R2
R1IN
R2IN
EIA/TIA-232
INPUTS*
EN
GND
SD
ADM3222
*INTERNAL 5kΩ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
Figure 2.
+3.3V INPUT
0.1µF +
10V
0.1µF +
10V
CMOS
INPUTS
T1IN
T2IN
C1+
C1–
+3.3V TO +6.6V
VOLTAGE
DOUBLER
VCC
V+
C2+ +6.6V TO –6.6V V–
C2–
VOLTAGE
INVERTER
T1
T2
C4
0.1µF
10V
C3
0.1µF
10V
C5
0.1µF
T1OUT
T2OUT
EIA/TIA-232
OUTPUTS
CMOS
OUTPUTS
R1OUT
R2OUT
R1
R2
R1IN
R2IN
EIA/TIA-232
INPUTS*
DD
GND
SD
ADM1385
*INTERNAL 5kΩ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
Figure 3.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©1998–2011 Analog Devices, Inc. All rights reserved.
1 page  
ADM3202/ADM3222/ADM1385
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
PIN CONFIGURATIONS (N, R, RU, AND RW PACKAGES)
C1+ 1
V+ 2
C1– 3
C2+ 4
C2– 5
V– 6
T2OUT
R2IN
7
8
ADM3202
TOP VIEW
(Not to Scale)
16 VCC
15 GND
14 T1OUT
13 R1IN
12 R1OUT
11 T1IN
10 T2IN
9 R2OUT
EN 1
C1+ 2
V+ 3
C1– 4
C2+ 5
C2– 6
V– 7
T2OUT 8
R2IN 9
ADM3222
TOP VIEW
(Not to Scale)
18 SD
17 VCC
16 GND
15 T1OUT
14 R1IN
13 R1OUT
12 T1IN
11 T2IN
10 R2OUT
Figure 4. N, R, RU, and RW Packages Pin Configuration
Figure 5. N and RW Packages Pin Configuration
PIN CONFIGURATIONS (RS AND RU PACKAGES)
EN 1
20 SD
C1+ 2
19 VCC
V+ 3 ADM3222 18 GND
C1– 4 (SSOP/TSSOP) 17 T1OUT
C2+ 5
TOP VIEW
(Not to Scale)
16 R1IN
C2– 6
15 R1OUT
V– 7
14 NC
T2OUT 8
R2IN 9
R2OUT 10
13 T1IN
12 T2IN
11 NC
NC = NO CONNECT
Figure 6. RS and RU Packages Pin Configuration
DD 1
C1+ 2
V+ 3
C1– 4
C2+ 5
C2– 6
V– 7
T2OUT 8
R2IN 9
NC 10
ADM1385
(SSOP)
TOP VIEW
(Not to Scale)
20 SD
19 VCC
18 GND
17 T1OUT
16 R1IN
15 R1OUT
14 T1IN
13 T2IN
12 R2OUT
11 NC
NC = NO CONNECT
Figure 7. RS Package Pin Configuration
Table 3. Pin Function Descriptions
Mnemonic Description
VCC Power Supply Input (3.3 V ± 0.3 V).
V+ Internally Generated Positive Supply (+6 V nominal).
V– Internally Generated Negative Supply (−6 V nominal).
GND Ground Pin. Must be connected to 0 V.
C1+, C1–
External Capacitor 1 is connected between these pins. A 0.1 μF capacitor is recommended but larger capacitors up to 47 μF
can be used.
C2+, C2–
External Capacitor 2 is connected between these pins. A 0.1 μF capacitor is recommended but larger capacitors up to 47 μF
can be used.
TxIN
TxOUT
Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels.
Transmitter (Driver) Outputs. These are RS-232 signal levels (typically ±9 V).
RxIN Receiver Inputs. These inputs accept RS-232 signal levels. An internal 5 kΩ pull-down resistor to GND is connected on each input.
RxOUT
Receiver Outputs. These are CMOS output logic levels.
EN (ADM3222 only) Receiver Enable. Active low. When low, the receiver outputs are enabled. When high, they are three-stated.
SD (ADM3222 only) Shutdown Control. Active low. When low, the charge pump is shut down and the transmitter outputs
are disabled.
SD (ADM1385 only) Shutdown Control. When low, the charge pump is shut down and all transmitters and receivers are disabled.
DD (ADM1385 only) Driver Disable. When low, the charge pump is turned off and the transmitters are disabled. The receivers
remain active.
NC No Connect.
Rev. E | Page 5 of 16
5 Page 
ADM3202/ADM3222/ADM1385
5.10
5.00
4.90
16 9
4.50
4.40
6.40
BSC
4.30
18
PIN 1
0.15
0.05
1.20
MAX
0.20
0.09
0.65
BSC
0.30
0.19
COPLANARITY
0.10
SEATING
PLANE
8°
0°
COMPLIANT TO JEDEC STANDARDS MO-153-AB
Figure 22. 16-Lead Thin Shrink Small Outline Package [TSSOP]
(RU-16)
Dimensions shown in millimeters
0.75
0.60
0.45
10.50 (0.4134)
10.10 (0.3976)
16 9
7.60 (0.2992)
7.40 (0.2913)
1 8 10.65 (0.4193)
10.00 (0.3937)
0.30 (0.0118)
0.10 (0.0039)
COPLANARITY
0.10
1.27 (0.0500)
BSC
0.51 (0.0201)
0.31 (0.0122)
2.65 (0.1043)
2.35 (0.0925)
8°
0°
SEATING
PLANE
0.33 (0.0130)
0.20 (0.0079)
0.75 (0.0295)
0.25 (0.0098)
45°
1.27 (0.0500)
0.40 (0.0157)
COMPLIANT TO JEDEC STANDARDS MS-013-AA
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
Figure 23. 16-Lead Standard Small Outline Package [SOIC_W]
Wide Body
(RW-16)
Dimensions shown in millimeters and (inches)
Rev. E | Page 11 of 16
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet ADM3222.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ADM3222 | Line Drivers/Receivers | Analog Devices |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |