DataSheet.jp

ADM1385 の電気的特性と機能

ADM1385のメーカーはAnalog Devicesです、この部品の機能は「Line Drivers/Receivers」です。


製品の詳細 ( Datasheet PDF )

部品番号 ADM1385
部品説明 Line Drivers/Receivers
メーカ Analog Devices
ロゴ Analog Devices ロゴ 




このページの下部にプレビューとADM1385ダウンロード(pdfファイル)リンクがあります。

Total 16 pages

No Preview Available !

ADM1385 Datasheet, ADM1385 PDF,ピン配置, 機能
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 5kPULL-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 5kPULL-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 5kPULL-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





ADM1385 pdf, ピン配列
ADM3202/ADM3222/ADM1385
SPECIFICATIONS
VCC = 3.3 V ± 0.3 V, C1 to C4 = 0.1 μF. All specifications TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
DC CHARACTERISTICS
Operating Voltage Range
VCC Power Supply Current
Shutdown Supply Current
LOGIC
Input Logic Threshold Low, VINL
Input Logic Threshold High, VINH
CMOS Output Voltage Low, VOL
CMOS Output Voltage High, VOH
Logic Pull-Up Current
Output Leakage Current
RS-232 RECEIVER
EIA-232 Input Voltage Range
EIA-232 Input Threshold Low
EIA-232 Input Threshold High
EIA-232 Input Hysteresis
EIA-232 Input Resistance
RS-232 TRANSMITTER
Output Voltage Swing (RS-232)
Output Voltage Swing (RS-562)
Transmitter Output Resistance
RS-232 Output Short-Circuit Current
Output Leakage Current
TIMING CHARACTERISTICS
Maximum Data Rate
Receiver Propagation Delay
TPHL
TPLH
Transmitter Propagation Delay
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Skew
Receiver Skew
Transition Region Slew Rate
Min Typ Max Unit Test Conditions/Comments
3.0 3.3 5.5 V
1.3 3
mA No load
8 12 mA RL = 3 kΩ to GND
0.01 0.5 μA
2.0
VCC − 0.6
5
0.8 V
V
0.4 V
V
10 μA
±10 μA
TIN
TIN
IOUT = 1.6 mA
IOUT = −1 mA
TIN = GND to VCC1
Receivers disabled
−30 +30 V
0.6 1.2
V
1.6 2.4 V
0.4 V
3 5 7 kΩ
±5.0 ±5.2
V VCC = 3.3 V, all transmitter outputs loaded with 3 kΩ to ground
±3.7 V VCC = 3.0 V
300 Ω VCC = 0 V, VOUT = ±2 V
±15 mA
±25 μA SD = low, VOUT = 12 V
460 kbps VCC = 3.3 V, RL = 3 kΩ to 7 kΩ, CL = 50 pF to 1000 pF, one
Tx switching
0.4 1
μs
0.4 1
μs
0.3 1.2 μs RL = 3 kΩ, CL = 1000 pF
200 ns
200 ns
30 ns
300 ns
5.5 10 30 V/μs Measured from +3 V to −3 V or −3 V to +3 V, VCC = +3.3 V;
RL = 3 kΩ, CL = 1000 pF, TA = 25°C
1 ADM1385: Input leakage current typically −10 μA when TIN = GND.
Rev. E | Page 3 of 16


3Pages


ADM1385 電子部品, 半導体
ADM3202/ADM3222/ADM1385
TYPICAL PERFORMANCE CHARACTERISTICS
8
6 TOUT (HIGH)
4
2
0
–2
–4
–6 TOUT (LOW)
–8
0
200
400
600
800
1000
1200
LOAD CAPACITANCE (pF)
Figure 8. Transmitter Output Voltage High/Low vs.
Load Capacitance @ 460 kbps
8
Tx O/P HIGH
6
4
2
0
–2
–4 Tx O/P LOW
–6
–8
2.7 2.9 3.1 3.3 3.5
VCC (V)
Figure 9. Transmitter Output Voltage vs. VCC
8
6
Tx O/P HIGH
4
2
0
–2
–4
Tx O/P LOW
–6
–8
0 2 4 6 8 10 12
LOAD CURRENT (mA)
Figure 10. Transmitter Output Voltage Low/High vs. Load Current
8
6
V+
4
2
0
–2
–4
V–
–6
–8
0 2 4 6 8 10
LOAD CURRENT (mA)
Figure 11. Charge Pump V+, V− vs. Load Current
12
350
300
V+ (IMPEDANCE)
250
200
V– (IMPEDANCE)
150
100
50
0
2.7 2.9 3.1 3.3 3.5
VCC (V)
Figure 12. Charge Pump Impedance vs. VCC
20
18
16 ICC @ 460kbps
14
12
ICC @ 230kbps
10
8
6
4
2
0
0
1000
2000
3000
LOAD CAPACITANCE (pF)
Figure 13. Power Supply Current vs. Load Capacitance
Rev. E | Page 6 of 16

6 Page



ページ 合計 : 16 ページ
 
PDF
ダウンロード
[ ADM1385 データシート.PDF ]


データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。


共有リンク

Link :


部品番号部品説明メーカ
ADM1385

Line Drivers/Receivers

Analog Devices
Analog Devices


www.DataSheet.jp    |   2020   |  メール    |   最新    |   Sitemap