ADM3101EACPZ Analog Devices, ADM3101EACPZ Datasheet

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ADM3101EACPZ

Manufacturer Part Number
ADM3101EACPZ
Description
Manufacturer
Analog Devices
Datasheet

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Preliminary Technical Data
FEATURES
460 kbps data rate
1 Tx and 1 Rx
Meets EIA-232E specifications
0.1 µF charge pump capacitors
ESD protection to IEC1000-4-2 (801.2)
on CMOS and RS-232 I/Os
±8 kV: contact discharge
±15 kV: air gap discharge
APPLICATIONS
General-purpose RS-232 data link
Portable instruments
Handsets
Industrial/Telecom Diagonictics Ports
GENERAL DESCRIPTION
The ADM3101E transceiver is a high speed, single-channel RS-
232/V.28 interface devices that operate from a single 3.3 V
power supply. Low power consumption make it ideal for
battery-powered portable instruments.
The ADM3101E conforms to the EIA-232E and CCITT V.28
specifications and operates at data rates up to 460 kbps.
All RS-232 (T
outputs are protected against electrostatic discharges (up to ±15
kV ESD Protection). This ensures compliance with
IEC 1000-4-2 requirements.
This device is ideally suited for operation in electrically harsh
environments or where RS-232 cables are frequently being
plugged/unplugged with the ±15kV ESD protection of the
ADM3101E’s I/O pins.
Emissions are also controlled to within very strict limits. CMOS
technology is used to keep the power dissipation to an absolute
minimum, allowing maximum battery life in portable
applications.
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 ADM3101E is available in a 12-lead LFCSP.
Rev. PrD
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. Trademarks and
registered trademarks are the property of their respective owners.
OUT
and R
IN
) and CMOS (T
IN
and R
OUT
) inputs and
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
0.1µF
CMOS
CMOS
Output
0.1µF
10V
Input
10V
3.3 V, Single Channel RS-232
+
+
R
OUT
T
IN
FUNCTIONAL BLOCK DIAGRAMS
Figure 1. ADM3101E Functional Block Diagram
C1-
C2-
C1+
C2+
© 2006 Analog Devices, Inc. All rights reserved.
+6.6V TO -6.6V
Voltage Inverter
+3.3V TO +6.6V
Voltage Doubler
Line Driver/Receiver
ADM3101E
T1
GND
R1
* Internal 5kΩ Pull-down resistor
on the RS-232 input
Vcc
V+
V-
ADM3101E
+3.3V Input
T
R
OUT
www.analog.com
IN
+
+
0.1µF
0.1µF
6.3V
10V
C4
EIA/TIA-232
C3
EIA/TIA-232
Output
Input*
+
0.1µF
C5

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ADM3101EACPZ Summary of contents

Page 1

... Rev. PrD 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 ...

Page 2

ADM3101E Table of Contents Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 ESD Caution.................................................................................. 4 Pin Configurations and Function Descriptions ........................... 5 Typical Performance Characteristics ............................................. 6 General Description ......................................................................... 8 Circuit Description....................................................................... 8 Charge Pump DC-DC Voltage Converter ............................ 8 Transmitter ...

Page 3

Preliminary Technical Data SPECIFICATIONS V = 3.3 V ± 0.3 V, C1–C4 = 0.1 µF. All specifications T CC Table 1. Parameter Min DC CHARACTERISTICS Operating Voltage Range 3.0 V Power Supply Current CC LOGIC Input Logic Threshold Low, V ...

Page 4

ADM3101E ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 2. Parameter V− Input Voltages Output Voltages T OUT R OUT Short Circuit Duration T OUT Power Dissipation Power Dissipation CP-12 ...

Page 5

Preliminary Technical Data PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Mnemonic Function V Power Supply Input Internally Generated Positive Supply (+6 V Nominal). V– Internally Generated Negative Supply (−6 V ...

Page 6

ADM3101E TYPICAL PERFORMANCE CHARACTERISTICS Figure 3. Transmitter Output Voltage High/Low vs. Load Capacitance @ 460 kbps Figure 4. Transmitter Output Voltage vs. V Figure 5. Transmitter Output Voltage Low/High vs. Load RL = 3kΩ CC, Rev. PrD | Page 6 ...

Page 7

Preliminary Technical Data Figure 9. 460 kbps Data Transmission Figure 10. T Voltage Threshold vs. Vcc IN Rev. PrD | Page ADM3101E ...

Page 8

ADM3101E GENERAL DESCRIPTION The ADM3101E is a single channel RS-232 line driver/receiver. Step-up voltage converters coupled with level shifting transmitters and receivers allow RS-232 levels to be developed while operating from a single 3.3 V supply. CMOS technology is used ...

Page 9

Preliminary Technical Data ESD Protection on RS-232 and CMOS I/O pins All RS-232 (T and R ) and CMOS (T OUT IN outputs are protected against electrostatic discharges (up to ±15 kV). This ensures compliance with IEC 1000-4-2 requirements. HIGH ...

Page 10

... ADM3101E OUTLINE DIMENSIONS Figure 14. 12-Lead Frame Chip Scale package [LFCSP] (CP-12)—Dimensions shown in millimeters ORDERING GUIDE Model 1 ADM3101EACPZ Free © 2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. PR06378-0-9/06(PrD) Temperature Range – ...

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