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ADM3072E

Features: ·TIA/EIA RS-485/RS-422 compliant·±15 kV ESD protection on RS-485 input/output pins·Data ratesADM3070E/ADM3071E/ADM3072E: 250 kbpsADM3073E/ADM3074E/ADM3075E: 500 kbpsADM3076E/ADM3077E/ADM3078E: 16 Mbps·Half- and full-duplex options·True fail-safe receiver inputs·Up to 256 nodes on the bus...

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SeekIC No. : 004275771 Detail

ADM3072E: Features: ·TIA/EIA RS-485/RS-422 compliant·±15 kV ESD protection on RS-485 input/output pins·Data ratesADM3070E/ADM3071E/ADM3072E: 250 kbpsADM3073E/ADM3074E/ADM3075E: 500 kbpsADM3076E/ADM3077E/ADM30...

ADM3072E Data Sheet

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Part Number:
ADM3072E
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·TIA/EIA RS-485/RS-422 compliant
·±15 kV ESD protection on RS-485 input/output pins
·Data rates
ADM3070E/ADM3071E/ADM3072E: 250 kbps
ADM3073E/ADM3074E/ADM3075E: 500 kbps
ADM3076E/ADM3077E/ADM3078E: 16 Mbps
·Half- and full-duplex options
·True fail-safe receiver inputs
·Up to 256 nodes on the bus
·−40°C to +125°C temperature option
·Hot-swap input structure on DE and RE pins
·Reduced slew rates for low EMI
·Low power shutdown current (all except ADM3071E/ADM3074E/ADM3077E)
·Outputs high-Z when disabled or powered off
·Common-mode input range: −7 V to +12 V
·Thermal shutdown and short-circuit protection
·8-lead and 14-lead narrow SOIC packages




Application

·Power/energy metering
·Industrial control
·Lighting systems
·Telecommunications
·Security systems
·Instrumentation




Pinout

ADM3072E Diagram




Specifications

# of Nodes On Bus 256
Drvr/Rcvr Enable Yes
Fail Safe Open, Short
Isolation V (rms) ---
Available Packages SOIC
ESD-Protection 15 kV
Pwr Supply (Vnom) +3.3
Data Rate 250kbps
Full-Half Duplex Half


Parameter Rating
VCC to GND
Digital Input/Output Voltage (DE, RE, DI)
Receiver Output Voltage (RO)
Driver Output (A, B, Y, Z)/Receiver Input (A, B) Voltage
Driver Output Current
Operating Temperature Range
ADM307xEA_
ADM307xEY_
Storage Temperature Range
JA Thermal Impedance
8-Lead SOIC_N
14-Lead SOIC_N
Lead Temperature, Soldering (20 sec)		 −0.3 V to +6 V
−0.3 V to +6 V
−0.3 V to (VCC + 0.3 V)

−8 V to +13 V
±250 mA

−40°C to +85°C
−40°C to +125°C
−65°C to +150°C

158°C/W
120°C/W
260°C





Description

The ADM3070E to ADM3078E are 3.3 V, low power data transceivers with ±15 kV ESD protection suitable for full- and half-duplex communication on multipoint bus transmission lines. They are designed for balanced data transmission, and they comply with TIA/EIA standards RS-485 and RS-422.

The ADM3070E to ADM3078E have an ⅛ unit load receiver input impedance, which allows up to 256 transceivers on a bus. Because only one driver should be enabled at any time, the output of a disabled or powered-down driver is tristated to avoid overloading the bus.

The receiver inputs of ADM3070E to ADM3078E have a true fail-safe feature, which eliminates the need for external bias resistors and ensures a logic high output level when the inputs are open or shorted. This guarantees that the receiver outputs are in a known state before communication begins and when communication ceases.






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