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参数资料
| 型号： | MAX3094EESE |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/13页 |
| 文件大小： | 0K |
| 描述： | IC RCVR QUAD RS422/485 16-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 类型： | 接收器 |
| 驱动器/接收器数： | 0/4 |
| 规程： | RS422，RS485 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
Applications Information
Propagation-Delay Matching
The MAX3093E/MAX3094E exhibit propagation delays
that are closely matched from one device to another,
even between devices from different production lots. This
feature allows multiple data lines to receive data and
clock signals with minimal skewing with respect to each
other. The MAX3093E receiver propagation delays are
trimmed to a predetermined value ±8ns, while the
MAX3094E delays are trimmed to a predetermined value
±10ns.
128 Receivers on the Bus
The standard RS-485 input impedance is 12k
Ω (one-
unit load). The standard RS-485 transmitter can drive
32 unit loads. The MAX3093E/MAX3094E present a 1/4-
unit-load input impedance (48k
Ω), which allows up to
128 receivers on a bus. Any combination of these RS-
485 receivers with a total of 32-unit loads can be con-
nected to the same bus.
Fail-Safe Implementation
The MAX3093E/MAX3094E receiver inputs guarantee a
logic high output when the inputs are open circuit (no
termination resistor used). This occurs when the trans-
mitter is removed from the bus or when all transmitter
outputs are high impedance. However, when the line is
terminated and the transmitters are disabled, the differ-
ential voltage between the _+ and _- inputs falls below
the ±200mV RS-485 sensitivity threshold. Consequent-
ly, the outputs become undefined. To maintain a fail-
safe receiver output while using a terminating resistor,
input _+ must be biased at least 200mV above input B.
The resistor-divider network shown in Figure 6 is rec-
ommended.
MAX3093E/MAX3094E
±15kV ESD-Protected, 10Mbps, 3V/5V,
Low-Power Quad RS-422/RS-485 Receivers
10
______________________________________________________________________________________
1k
Ω
1k
Ω
150
Ω
MAX3093E
MAX3094E
VCC
_+
_-
Chip Information
TRANSISTOR COUNT: 676
Figure 6. External Fail-Safe Implementation
相关PDF资料 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3094EESE+ | 功能描述:RS-422/RS-485 接口 IC 10Mbps 3V/5V Quad RS-422/RS-485 Rcvr RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX3094EESE+T | 功能描述:RS-422/RS-485 接口 IC 10Mbps 3V/5V Quad RS-422/RS-485 Rcvr RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX3094EESE-T | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX3094EEUE | 功能描述:RS-422/RS-485 接口 IC 10Mbps 3V/5V Quad RS-422/RS-485 Rcvr RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX3094EEUE/GG8 | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
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