参数资料
| 型号： | ADM3251EARWZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 15/16页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS232 ISOLATED 20-SOIC |
| 产品培训模块： | Power Line Monitoring iCoupler Digital Isolater Technology |
| 标准包装： | 37 |
| 类型： | 线路收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS232 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 管件 |
| 配用： | EVAL-ADM3251EEB1Z-ND - BOARD EVALUATION FOR ADM3251 EVAL-ADM3251EEBZ-ND - BOARD EVALUATION ADM3251 |
ADM3251E
Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NC
1
VCC 2
VCC 3
GND
4
VISO
20
V+
19
C1+
18
C1–
17
GND
5
TOUT
16
GND
6
RIN
15
GND
7
C2+
14
ROUT 8
C2–
13
TIN 9
V–
12
GND 10
GNDISO
11
NC = NO CONNECT
ADM3251E
TOP VIEW
(Not to Scale)
07388-
002
Figure 2. Pin Configuration
Table 8. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
NC
No Connect. This pin should always remain unconnected.
2, 3
VCC
Power Supply Input. A 0.1 F decoupling capacitor is required between VCC and ground. When a voltage
between 4.5 V and 5.5 V is applied to the VCC pin, the integrated dc-to-dc converter is enabled. If this voltage
is lowered to between 3.0 V and 3.7 V, the integrated dc-to-dc converter is disabled.
4, 5, 6, 7, 10
GND
Ground.
8
ROUT
Receiver Output. This pin outputs CMOS logic levels.
9
TIN
Transmitter (Driver) Input. This pin accepts CMOS levels.
11
GNDISO
Ground Reference for Isolated RS-232 Side.
12
V
Internally Generated Negative Supply.
13, 14
C2, C2+
Positive and Negative Connections for Charge Pump Capacitors. External Capacitor C2 is connected between
these pins; a 0.1 F capacitor is recommended, but larger capacitors up to 10 F can be used.
15
RIN
Receiver Input. This input accepts RS-232 signal levels.
16
TOUT
Transmitter (Driver) Output. This outputs RS-232 signal levels.
17, 18
C1, C1+
Positive and Negative Connections for Charge Pump Capacitors. External Capacitor C1 is connected between
these pins; a 0.1 F capacitor is recommended, but larger capacitors up to 10 F can be used.
19
V+
Internally Generated Positive Supply.
20
VISO
Isolated Supply Voltage for Isolator Secondary Side. A 0.1 F decoupling capacitor is required between VISO
and ground. When the integrated dc-to-dc converter is enabled, the VISO pin should not be used to power
external circuitry. If the integrated dc-to-dc converter is disabled, power the secondary side by applying a
voltage in the range of 3.0 V to 5.5 V to this pin.
Rev. G | Page 8 of 16
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| ADM3260ARSZ-RL7 | 功能描述:I2C Digital Isolator 2500Vrms 2 Channel 25kV/μs CMTI 20-SSOP (0.209", 5.30mm Width) 制造商:analog devices inc. 系列:IsoPower?，iCoupler? 包装:剪切带（CT） 零件状态:有效 技术:磁耦合 类型:I2C 隔离式电源:是 通道数:2 输入 - 输入侧 1/输入侧 2:2/2 通道类型:双向 电压 - 隔离:2500Vrms 共模瞬态抗扰度（最小值）:25kV/μs 数据速率:- 传播延迟 tpLH / tpHL（最大值）:- 脉宽失真（最大）:145ns，85ns 上升/下降时间（典型值）:- 电压 - 电源:3 V ~ 5.5 V 工作温度:-40°C ~ 105°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商器件封装:20-SSOP 标准包装:1 |
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