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参数资料
型号： MAX3157CAI
厂商： Maxim Integrated Products
文件页数： 7/13页
文件大小： 0K
描述： IC TXRX RS485/422 250KBPS 28SSOP
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 46
类型： 收发器
驱动器/接收器数： 1/1
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： 28-SSOP（0.209"，5.30mm 宽）
供应商设备封装： 28-SSOP
包装： 管件
MAX3157
High CMRR RS-485 Transceiver
with ±50V Isolation
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +5V ±5%, YR = ZR = AR = BR = ISOCOM, C1 = C2 = 0.047F, C3 = C4 = 1F, TA = TMIN to TMAX, unless otherwise noted.
Typical values are at VCC = +5V and TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DE = GND, VCC = GND or 5.25V, -7V
≤ (VIN -
VISOCOM)
≤ 12V, YR = ZR = ISOCOM
-5.0
8.0
Output Leakage (Y and Z)
Full Duplex
IO
DE = GND, VCC = GND or 5.25V, -7V
≤ (VIN -
VISOCOM)
≤ 12V, YR open, ZR open
-0.58
1.0
mA
IOSD1
VISOCOM - 7V
≤ VOUT ≤ VISOVCC
-250
Driver Short-Circuit Output
Current (Note 3)
IOSD2
VISOCOM - 7V
≤ VOUT ≤ VISOCOM +12V
250
mA
RECEIVER
Receiver Differential Threshold
Voltage
VTH
-7V
≤ VCM - VISOCOM ≤ 12V
-200
-125
-50
mV
Receiver Input Hysteresis
VTH
25
mV
Receiver Output High Voltage
VOH
IO = -4mA, VID = -50mV
V CC - 1.5
V
Receiver Output Low Voltage
VOL
IO = 4mA, VID = -200mV
0.4
V
Three-State Output Current at
Receiver
IOZR
0.4V
≤ VO ≤ 2.4V
±1A
-7V
≤ VCM - VISOCOM ≤ 12V, AR = BR =
ISOCOM
1.5
Receiver Input Resistance
RIN
-7V
≤ VCM - VISOCOM ≤ 12V, AR open,
BR open
12
k
Receiver Output Short-Circuit
Current
IOSR
0V
≤ VRO ≤ VCC
±7
±100
mA
SUPPLY CURRENT
Supply Current
ICC
No load, RE = DE = DI = GND or VCC
25
85
mA
DE = GND, RE = VCC, VISOCOM = GND
25
60
Supply Current in Shutdown
Mode
ISHDN
DE = GND, RE = VCC, VISOCOM =
±50V
±600
A
Maximum Ground Differential
VGND
DE = GND, RE = VCC,
| ISOCOM leakage |
≤ 600A
±50
V
SWITCHING CHARACTERISTICS
(VCC = +5V ±5%, YR = ZR = AR = BR = ISOCOM, C1 = C2 = 0.047F, C3 = C4 = 1F. Typical values are at VCC = +5V and TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
tDPLH
Figures 3 and 5, RDIFF = 54
,
CL1 = CL2 = 100pF
400
1400
2000
Driver Input to Output
tDPHL
Figures 3 and 5, RDIFF = 54
,
CL1 = CL2 = 100pF
400
1400
2000
ns
Driver Output Skew
| tDPLH - tDPHL |
tDSKEW
Figures 3 and 5, RDIFF = 54
,
CL1 = CL2 = 100pF
250
ns
Driver Rise or Fall Time
tDR, tDF
Figures 3 and 5, RDIFF = 54
,
CL1 = CL2 =100pF
200
1200
2200
ns
Maximum Data Rate
fMAX
250
kbps
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相关代理商/技术参数
参数描述
MAX3157CAI+ 功能描述:RS-422/RS-485 接口 IC High CMRR RS-485 Tcvr w/+-50V Iso 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
MAX3157CAI+T 功能描述:RS-422/RS-485 接口 IC High CMRR RS-485 Tcvr w/+-50V Iso 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
MAX3157CAI-T 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MAX3157CPI 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MAX3157CPI+ 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
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