ADM1385ARS [ADI]
Low Power, +3.3 V, RS-232 Line Drivers/Receivers; 低功耗， + 3.3V ， RS - 232线路驱动器/接收器
| 型号： | ADM1385ARS |
| 厂家： | 
ADI |
| 描述： | Low Power, +3.3 V, RS-232 Line Drivers/Receivers |
| 文件： | 总8页 (文件大小：155K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Low Power, +3.3 V, RS-232
Line Drivers/Receivers
a
ADM3202/ADM3222/ADM1385
FUNCTIONAL BLOCK DIAGRAMS
FEATURES
460 kbps Data Rate
+3.3V INPUT
Specified at +3.3 V
+3.3V TO +6.6V
VOLTAGE
C1+
C1–
V
CC
+
+
0.1ꢀF
+
C3
0.1ꢀF
6.3V
C5
Meets EIA-232E Specifications
0.1 ꢀF Charge Pump Capacitors
Low Power Shutdown (ADM3222E and ADM1385)
DIP, SO, SOIC, SSOP and TSSOP Package Options
Upgrade for MAX3222/32 and LTC1385
10V
+
+
V+
DOUBLER
0.1ꢀF
+6.6V TO –6.6V
VOLTAGE
INVERTER
C2+
C2–
V–
0.1ꢀF
10V
C4
0.1ꢀF
10V
T1
T2
T1
T2
T1
IN
OUT
CMOS
EIA/TIA-232
OUTPUTS
APPLICATIONS
INPUTS
T2
General Purpose RS-232 Data Link
Portable Instruments
Printers
Palmtop Computers
PDAs
IN
OUT
R1
R2
R1
R2
R1
R2
OUT
OUT
IN
IN
CMOS
OUTPUTS
EIA/TIA-232
INPUTS*
GND
ADM3202
*INTERNAL 5kꢁ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
+3.3V INPUT
GENERAL DESCRIPTION
The ADM3202/ADM3222/ADM1385 transceivers are high
speed, 2-channel RS-232/V.28 interface devices which operate
from a single +3.3 V power supply.
+3.3V TO +6.6V
VOLTAGE
C1+
C1–
V
CC
+
+
0.1ꢀF
+
C3
0.1ꢀF
6.3V
C5
10V
+
+
V+
DOUBLER
0.1ꢀF
+6.6V TO –6.6V
VOLTAGE
INVERTER
C2+
C2–
V–
0.1ꢀF
10V
C4
0.1ꢀF
10V
Low power consumption and a shutdown facility (ADM3222/
ADM1385) makes them ideal for battery powered portable
instruments.
T1
T2
T1
T2
T1
IN
OUT
CMOS
EIA/TIA-232
OUTPUTS
INPUTS
The ADM3202/ADM3222/ADM1385 conforms to the EIA-
232E and CCITT V.28 specifications and operates at data rates
up to 460 kbps.
T2
IN
OUT
R1
R2
R1
R2
R1
R2
OUT
OUT
IN
IN
CMOS
OUTPUTS
EIA/TIA-232
INPUTS*
Four external 0.1 µF charge pump capacitors are used for the
voltage doubler/inverter permitting operation from a single
+3.3 V supply.
ADM3222
EN
SD
GND
The ADM3222 contains additional enable and shutdown cir-
cuitry. The EN input may 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.
*INTERNAL 5kꢁ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
+3.3V INPUT
+3.3V TO +6.6V
VOLTAGE
C1+
C1–
V
CC
+
+
0.1ꢀF
+
C5
0.1ꢀF
10V
V+
DOUBLER
+
C3
0.1ꢀF
+6.6V TO –6.6V
VOLTAGE
INVERTER
C2+
C2–
V–
0.1ꢀF
10V
6.3V
C4
The ADM1385 contains a driver disable mode and a complete
shutdown mode.
+
0.1ꢀF
10V
T1
T2
T1
T2
T1
IN
OUT
OUT
The ADM3202 is available in a 16-lead DIP, narrow and wide
SOIC as well as a space saving 20-lead TSSOP package. The
ADM3222 is available in 18-lead DIP, SO and in 20-lead SSOP
and TSSOP. The ADM1385 is available in a 20-lead SSOP
package, which is pin compatible with the LTC1385 CG.
CMOS
EIA/TIA-232
OUTPUTS
INPUTS
T2
IN
R1
R2
R1
R2
R1
R2
OUT
OUT
IN
IN
CMOS
OUTPUTS
EIA/TIA-232
INPUTS*
ADM1385
DD
SD
GND
*INTERNAL 5kꢁ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
REV. A
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
World Wide Web Site: http://www.analog.com
© Analog Devices, Inc., 2000
ADM3202/ADM3222/ADM1385–SPECIFICATIONS
(VCC = +3.3 V ꢂ 0.3 V, C1–C4 = 0.1 ꢀF. All specifications TMIN to TMAX unless otherwise noted.)
Parameter
Min
Typ Max
Unit
Test Conditions/Comments
DC CHARACTERISTICS
Operating Voltage Range
VCC Power Supply Current
3.0
3.3
1.3
8
5.5
2.1
10
V
mA
mA
µA
No Load
RL = 3 kΩ to GND
Shutdown Supply Current
0.01 0.5
LOGIC
Input Logic Threshold Low, VINL
Input Logic Threshold High, VINH
CMOS Output Voltage Low, VOL
CMOS Output Voltage High, VOH
Input Leakage Current
0.8
0.4
V
V
V
V
µA
µA
TIN
TIN
2.0
IOUT = 1.6 mA
IOUT = –1 mA
TIN = GND to VCC
Receivers Disabled
VCC – 0.6
0.01
1
10
*
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
–30
0.6
+30
2.4
7
V
V
V
V
1.2
1.6
0.4
5
3
kΩ
RS-232 TRANSMITTER
Output Voltage Swing (RS-232)
5.0
5.2
V
VCC = 3.3 V. All Transmitter Outputs Loaded
with 3 kΩ to Ground
Output Voltage Swing (RS-562)
Transmitter Output Resistance
RS-232 Output Short Circuit Current
Output Leakage Current
3.7
300
V
Ω
mA
µA
VCC = 3.0 V
VCC = 0 V, VOUT
= 2 V
15
25
SD = Low, VOUT = 12 V
TIMING CHARACTERISTICS
Maximum Data Rate
Receiver Propagation Delay
TPHL
460
kbps
VCC = 3.3 V, RL = 3 kΩ to 7 kΩ, CL = 50 pF to
1000 pF. One Tx Switching
0.4
0.4
300
200
200
30
1
1
750
µs
µs
ns
ns
ns
ns
ns
TPLH
Transmitter Propagation Delay
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Skew
RL = 3 kΩ, CL = 1000 pF
Receiver Skew
300
Transition Region Slew Rate
Measured from +3 V to –3 V or –3 V to +3 V,
VCC = +3.3 V
6
4
10
10
30
30
V/µs
V/µs
RL = 3 kΩ, CL = 1000 pF, TA = +25°C
RL = 3 kΩ, CL = 2500 pF, TA = +25°C
*ADM1385: Input leakage current typically –10 µA when TIN = GND.
Specifications subject to change without notice.
–2–
REV. A
ADM3202/ADM3222/ADM1385
ABSOLUTE MAXIMUM RATINGS*
(TA = +25°C unless otherwise noted)
ORDERING GUIDE
Model
Temperature Range Package Options*
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . (VCC – 0.3 V) to +14 V
V– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –14 V
Input Voltages
TIN . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to (V+, +0.3 V)
RIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V
Output Voltages
TOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V
ROUT . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to (VCC + 0.3 V)
Short Circuit Duration
TOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Power Dissipation
ADM3202AN
ADM3202ARN
ADM3202ARW
ADM3202ARU
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
N-16
R-16A
R-16
RU-16
ADM3222AN
ADM3222ARW
ADM3222ARS
ADM3222ARU
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
N-18
R-18
RS-20
RU-20
ADM1385ARS
–40°C to +85°C
RS-20
*N = Plastic DIP; R = Small Outline; RS = Shrink Small Outline; RU = Thin
Shrink Small Outline.
Power Dissipation N-16 . . . . . . . . . . . . . . . . . . . . . 450 mW
(Derate 6 mW/°C above +50°C)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . 117°C/W
Power Dissipation R-16 . . . . . . . . . . . . . . . . . . . . . 450 mW
(Derate 6 mW/°C above +50°C)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . 158°C/W
Power Dissipation RU-16 . . . . . . . . . . . . . . . . . . . 500 mW
(Derate 6 mW/°C above +50°C)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . 158°C/W
Power Dissipation R-18 . . . . . . . . . . . . . . . . . . . . . 450 mW
(Derate 6 mW/°C above +50°C)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . 158°C/W
Power Dissipation RS-20 . . . . . . . . . . . . . . . . . . . . 450 mW
(Derate 6 mW/°C above +50°C)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . 158°C/W
Power Dissipation RU-20 . . . . . . . . . . . . . . . . . . . 450 mW
(Derate 6 mW/°C above +50°C)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . 158°C/W
Operating Temperature Range
Industrial (A Version) . . . . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . +300°C
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<1500 V
*This is a stress rating only; functional operation of the device at these or any other
conditions above those indicated in the operation sections of this specification
is not implied. Exposure to absolute maximum rating conditions for extended
periods of time may affect reliability.
REV. A
–3–
ADM3202/ADM3222/ADM1385
PIN FUNCTION DESCRIPTIONS
PIN CONNECTIONS DIP (N, R Packages)
Mnemonic
Function
1
2
3
4
5
6
7
8
9
18
EN
SD
1
2
3
4
5
6
7
8
V
CC
C1+
V+
16
15
14
VCC
V+
Power Supply Input: +3.3 V 0.3 V.
Internally Generated Positive Supply
(+6 V Nominal).
Internally Generated Negative Supply
(–6 V Nominal).
Ground Pin. Must be connected to 0 V.
External Capacitor 1 is connected between these
pins. 0.1 µF capacitor is recommended but larger
capacitors up to 47 µF may be used.
C1+
V
17
CC
GND
T1
V+
C1–
C2+
C2–
V–
GND
T1
16
C1–
C2+
C2–
V–
OUT
15
OUT
ADM3222
ADM3202
TOP VIEW
(Not to Scale)
13 R1
IN
V–
R1
R1
T1
14
TOP VIEW
IN
(Not to Scale)
R1
12
OUT
13
OUT
T1
11
IN
IN
GND
C1+, C1–
12
IN
IN
10 T2
T2
OUT
T2
OUT
11 T2
R2
R2
9
OUT
IN
R2
IN
R2
OUT
10
C2+, C2–
External Capacitor 2 is connected between these
pins. 0.1 µF capacitor is recommended but larger
capacitors up to 47 µF may be used.
PIN CONNECTIONS DIP (RS, RU Packages)
TxIN
Transmitter (Driver) Inputs. These inputs accept
TTL/CMOS levels.
Transmitter (Driver) Outputs. These are RS-232
signal levels (typically 9 V).
Receiver Inputs. These inputs accept RS-232
signal levels. An internal 5 kΩ pull-down resistor
to GND is connected on each input.
Receiver Outputs. These are CMOS output logic
levels.
1
2
20
19
18
SD
EN
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
DD
C1+
V+
SD
V
C1+
CC
TxOUT
RxIN
V
CC
GND
V+
C1–
C2+
C2–
V–
3
GND
T1
ADM3222
(SSOP
4
17 T1
OUT
C1–
C2+
C2–
V–
OUT
ADM1385
(SSOP)
TOP VIEW
(Not to Scale)
5
16 R1
15
TSSOP)
IN
R1
R1
IN
TOP VIEW
(Not to Scale)
6
R1
OUT
OUT
IN
7
14
13
12
11
NC
RxOUT
T1
T2
T1
T2
T2
OUT
8
IN
IN
T2
OUT
IN
R2
IN
9
EN
(ADM3222) Receiver Enable, Active Low. When
low, the receiver outputs are enabled. When high,
they are three-stated.
R2
IN
R2
OUT
NC
R2
OUT
10
NC 10
NC = NO CONNECT
NC
NC = NO CONNECT
SD
SD
DD
(ADM3222) Shutdown Control. Active Low.
When low, the charge pump is shut down and
the transmitter outputs are disabled.
(ADM1385) Shutdown Control. When low, the
charge pump is shut down and all transmitters
and receivers are disabled.
(ADM1385) Driver Disable. When low, the
charge pump is turned off and the transmitters
are disabled. The receivers remain active.
–4–
REV. A
ADM3202/ADM3222/ADM1385
Typical Performance Characteristics
6
8
6
4
T
(HIGH)
OUT
4
2
V+ (V)
2
0
0
–2
–2
–4
–6
V– (V)
–4
–6
–8
T
(LOW)
OUT
0
1000
2000
3000
4000
5000
0
10
20
30
40
LOAD CAPACITANCE – pF
CURRENT – mA
Figure 1. Transmitter Output Voltage High/Low vs. Load
Capacitance @ 230 kbps
Figure 4. Charge Pump V+, V– vs. Current
12
10
8
250
200
150
V– IMPEDANCE
6
V+ IMPEDANCE
100
50
4
2
0
0
3
3.5
4.0
4.5
– V
5.0
5.5
3.0
3.5
4.0
4.5
5.0
5.5
V
V
– V
CC
CC
Figure 2. Transmitter Output Voltage High vs. VCC
Figure 5. Charge Pump Impedance vs. VCC
8
25
20
15
T1
OUT
(HIGH) – V
I
(mA) @ 250kbps
6
4
DD
I
(mA) @ 160kbps
(mA) @ 80kbps
DD
2
0
I
DD
10
5
–2
T1
OUT
(LOW) – V
–4
–6
–8
0
0
2
4
6
8
10
0
1000
2000
3000
4000
5000
CURRENT – mA
LOAD CAPACITANCE – pF
Figure 3. Transmitter Output Voltage Low/High vs. Load
Current
Figure 6. Power Supply Current vs. Load Capacitance
REV. A
–5–
ADM3202/ADM3222/ADM1385
+3.3V INPUT
+3.3V TO +6.6V
VOLTAGE
C1+
V
CC
+
+
0.1ꢀF
+
C3
+
C5
0.1ꢀF
10V
V+
DOUBLER
0.1ꢀF
C1–
T1
IN
2V/DIV
6.3V
+6.6V TO –6.6V
VOLTAGE
INVERTER
C2+
V–
0.1ꢀF
10V
C4
0.1ꢀF
10V
+
C2–
T1
OUT
5V/DIV
T1
T2
T1
T2
T1
T2
IN
OUT
CMOS
INPUTS
EIA/TIA-232
OUTPUTS
IN
OUT
1ꢀs/DIV
R1
R2
R1
R2
R1
R2
Figure 7. 230 kbps Data Transmission
OUT
OUT
IN
CMOS
OUTPUTS
EIA/TIA-232
INPUTS*
IN
GENERAL DESCRIPTION
GND
ADM3202
The ADM3202/ADM3222/ADM1385 are RS-232 line drivers/
receivers. 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.
*INTERNAL 5kꢁ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
+3.3V INPUT
+3.3V TO +6.6V
VOLTAGE
C1+
V
CC
CMOS technology is used to keep the power dissipation to an
absolute minimum, allowing maximum battery life in portable
applications.
+
0.1ꢀF
+
C3
0.1ꢀF
6.3V
C5
0.1ꢀF
10V
+
+
V+
DOUBLER
C1–
+6.6V TO –6.6V
VOLTAGE
INVERTER
C2+
V–
+
0.1ꢀF
10V
C4
0.1ꢀF
10V
The ADM3202/ADM3222/ADM1385 is a modification, en-
hancement and improvement to the AD230–AD241 family and
its derivatives. It is essentially plug-in compatible and does not
have materially different applications.
C2–
T1
T2
T1
T2
T1
T2
IN
OUT
CMOS
INPUTS
EIA/TIA-232
OUTPUTS
IN
OUT
CIRCUIT DESCRIPTION
The internal circuitry consists of three main sections. These are:
R1
R2
R1
R2
R1
R2
OUT
OUT
IN
CMOS
OUTPUTS
EIA/TIA-232
INPUTS*
1. A charge pump voltage converter
2. 3.3 V logic to EIA-232 transmitters
3. EIA-232 to 5 V logic receivers.
IN
ADM3222
EN
SD
GND
Charge Pump DC-DC Voltage Converter
*INTERNAL 5kꢁ PULL-DOWN RESISTOR
The charge pump voltage converter consists of a 200 kHz oscil-
lator and a switching matrix. The converter generates a 6.6 V
supply from the input +3.3 V level. This is done in two stages
using a switched capacitor technique as illustrated below. First,
the +3.3 V input supply is doubled to +6.6 V using capacitor
C1 as the charge storage element. The +6.6 V level is then
inverted to generate –6.6 V using C2 as the storage element. C3
is shown connected between V+ and VCC, but is equally effec-
tive if connected between V+ and GND.
ON EACH RS-232 INPUT
+3.3V INPUT
+3.3V TO +6.6V
VOLTAGE
C1+
V
CC
+
0.1ꢀF
+
C5
0.1ꢀF
10V
V+
DOUBLER
C1–
+
C3
0.1ꢀF
+6.6V TO –6.6V
VOLTAGE
INVERTER
C2+
V–
+
0.1ꢀF
10V
6.3V
C4
+
C2–
0.1ꢀF
10V
T1
T2
T1
T2
T1
IN
OUT
OUT
Capacitors C3 and C4 are used to reduce the output ripple.
Their values are not critical and can be increased if desired.
Capacitor C3 is shown connected between V+ and VCC. It is
also acceptable to connect this capacitor between V+ and GND.
CMOS
EIA/TIA-232
OUTPUTS
INPUTS
T2
IN
R1
R2
R1
R2
R1
R2
OUT
OUT
IN
CMOS
OUTPUTS
EIA/TIA-232
INPUTS*
If desired, larger capacitors (up to 10 µF) can be used for
capacitors C1–C4.
IN
ADM1385
DD
SD
GND
*INTERNAL 5kꢁ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
Figure 8. Typical Operating Circuits
–6–
REV. A
ADM3202/ADM3222/ADM1385
Receiver Section
The receivers are inverting level-shifters that accept RS-232
input levels and translate them into 3 V logic output levels.
The inputs have internal 5 kΩ pull-down resistors to ground and
are also protected against overvoltages of up to 30 V. Uncon-
nected inputs are pulled to 0 V by the internal 5 kΩ pull-down
resistor. This, therefore, results in a Logic 1 output level for
unconnected inputs or for inputs connected to GND.
S1
S3
S4
V
V+ = 2V
CC
CC
+
+
C1
C3
S2
V
GND
CC
INTERNAL
OSCILLATOR
Figure 9. Charge Pump Voltage Doubler
The receivers have Schmitt trigger inputs with a hysteresis level
of 0.4 V. This ensures error-free reception for both noisy inputs
and for inputs with slow transition times.
S1
S3
V
GND
+
FROM
VOLTAGE
DOUBLER
+
+
C2
C4
S2
S4
V– = –(V+)
GND
HIGH BAUD RATE
INTERNAL
The ADM3202E/ADM3222E feature high slew rates permitting
data transmission at rates well in excess of the EIA/RS-232E
specifications. RS-232 voltage levels are maintained at data rates
up to 460 kbps even under worst case loading conditions. This
allows for high speed data links between two terminals or indeed
it is suitable for the new generation ISDN modem standards which
requires data rates of 230 kbps. The slew rate is internally con-
trolled to less than 30 V/µs in order to minimize EMI interference.
OSCILLATOR
Figure 10. Charge Pump Voltage Inverter
Transmitter (Driver) Section
The drivers convert 3.3 V logic input levels into RS-232 output
levels. With VCC = +3.3 V and driving an RS-232 load, the
output voltage swing is typically 6 V.
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
16-Lead Narrow Body SOIC
(R-16A)
16-Lead Plastic DIP
(N-16)
0.3937 (10.00)
0.3859 (9.80)
0.840 (21.34)
0.745 (18.92)
16
1
9
8
16
1
9
0.280 (7.11)
0.240 (6.10)
0.1574 (4.00)
0.1497 (3.80)
0.2440 (6.20)
0.2284 (5.80)
8
0.325 (8.26)
0.300 (7.62)
0.195 (4.95)
0.115 (2.93)
PIN 1
0.060 (1.52)
0.015 (0.38)
0.0688 (1.75)
0.0532 (1.35)
PIN 1
0.0196 (0.50)
0.0099 (0.25)
0.210 (5.33)
MAX
x 45ꢃ
0.0098 (0.25)
0.0040 (0.10)
0.130
(3.30)
MIN
0.160 (4.06)
0.115 (2.93)
0.015 (0.381)
0.008 (0.204)
8ꢃ
0ꢃ
SEATING
PLANE
0.100
(2.54)
BSC
0.070 (1.77)
0.045 (1.15)
0.022 (0.558)
0.014 (0.356)
0.0500
(1.27)
BSC
0.0192 (0.49)
0.0138 (0.35)
SEATING
PLANE
0.0500 (1.27)
0.0160 (0.41)
0.0099 (0.25)
0.0075 (0.19)
16-Lead Thin Shrink Small Outline (TSSOP)
(RU-16)
16-Lead Wide Body SOIC
(R-16)
0.201 (5.10)
0.193 (4.90)
0.4133 (10.50)
0.3977 (10.00)
16
16
9
9
8
1
1
8
0.1043 (2.65)
0.0926 (2.35)
PIN 1
0.0291 (0.74)
0.0098 (0.25)
PIN 1
x 45ꢃ
0.0118 (0.30)
0.0040 (0.10)
0.006 (0.15)
0.002 (0.05)
0.0433
(1.10)
MAX
0.0500 (1.27)
0.0157 (0.40)
8ꢃ
0ꢃ
0.028 (0.70)
0.020 (0.50)
8°
0°
0.0500
(1.27)
BSC
0.0192 (0.49)
0.0256 0.0118 (0.30)
(0.65)
BSC
SEATING
PLANE
0.0125 (0.32)
0.0091 (0.23)
SEATING
PLANE
0.0079 (0.20)
0.0035 (0.090)
0.0138 (0.35)
0.0075 (0.19)
REV. A
–7–
ADM3202/ADM3222/ADM1385
18-Lead Plastic DIP
(N-18)
18-Lead Wide Body SOIC
(R-18)
0.925 (23.49)
0.845 (21.47)
0.4625 (11.75)
0.4469 (11.35)
18
1
10
9
0.280 (7.11)
0.240 (6.10)
18
10
0.325 (8.25)
0.300 (7.62)
0.195 (4.95)
0.115 (2.93)
PIN 1
0.060 (1.52)
0.015 (0.38)
0.210
(5.33)
MAX
1
9
0.130
(3.30)
MIN
0.160 (4.06)
0.115 (2.93)
0.015 (0.381)
0.008 (0.204)
PIN 1
0.1043 (2.65)
0.0926 (2.35)
0.0291 (0.74)
0.0098 (0.25)
SEATING
PLANE
0.100
(2.54)
BSC
0.070 (1.77)
0.045 (1.15)
0.022 (0.558)
0.014 (0.356)
x 45ꢃ
0.0500 (1.27)
0.0157 (0.40)
8ꢃ
0ꢃ
0.0500
(1.27)
BSC
0.0192 (0.49)
0.0138 (0.35)
0.0118 (0.30)
0.0040 (0.10)
SEATING
PLANE
0.0125 (0.32)
0.0091 (0.23)
20-Lead Thin Shrink Small Outline (TSSOP)
(RU-20)
20-Lead Shrink Small Outline (SSOP)
(RS-20)
0.295 (7.50)
0.271 (6.90)
0.260 (6.60)
0.252 (6.40)
20
11
10
20
11
10
1
1
0.006 (0.15)
0.002 (0.05)
PIN 1
0.07 (1.78)
0.066 (1.67)
0.078 (1.98)
0.068 (1.73)
PIN 1
0.0433
(1.10)
MAX
0.028 (0.70)
0.020 (0.50)
8ꢃ
0ꢃ
0.0118 (0.30)
0.0075 (0.19)
0.0256 (0.65)
BSC
SEATING
PLANE
0.0079 (0.20)
0.0035 (0.090)
8ꢃ
0ꢃ
0.037 (0.94)
0.022 (0.559)
0.0256
(0.65)
BSC
0.008 (0.203)
0.002 (0.050)
SEATING
PLANE
0.009 (0.229)
0.005 (0.127)
–8–
REV. A
相关型号：
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