MAX3087E:±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

The MAX3080E–MAX3089E are ±15kV electrostatic discharge (ESD)-protected, high-speed transceivers for RS-485/RS-422 communication that contain one driver and one receiver. These devices feature fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted. This means that the receiver output will be a logic high if all transmitters on a terminated bus are disabled (high impedance). The MAX3080E/MAX3081E/MAX3082E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 115kbps. The MAX3083E/MAX3084E/MAX3085E offer higher driver output slew-rate limits, allowing transmit speeds up to 500kbps. The MAX3086E/MAX3087E/MAX3088Es' driver slew rates are not limited, making transmit speeds up to 10Mbps possible. The MAX3089E's slew rate is selectable between 115kbps, 500kbps, and 10Mbps by driving a selector pin with a single three-state driver. All devices feature enhanced ESD protection. All transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model. These transceivers typically draw 375µA of supply current when unloaded, or when fully loaded with the drivers disabled. All devices have a 1/8-unit-load receiver input impedance that allows up to 256 transceivers on the bus. The MAX3082E/MAX3085E/MAX3088E are intended for halfduplex communications, while the MAX3080E/MAX3081E/MAX3083E/MAX3084E/MAX3086E/MAX3087E are intended for full-duplex communications. The MAX3089E is selectable between half-duplex and full-duplex operation. It also features independently programmable receiver and transmitter output phase via separate pins.

Key Features
  • ESD Protection for RS-485 I/O Pins ±15kV, Human Body Model
  • True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility
  • Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission (MAX3080E–MAX3085E/MAX3089E)
  • 1nA Low-Current Shutdown Mode (Except MAX3081E/MAX3084E/MAX3087E)
  • Pin-Selectable Full/Half-Duplex Operation (MAX3089E)
  • Phase Controls to Correct for Twisted-Pair Reversal (MAX3089E)
  • Allow Up to 256 Transceivers on the Bus
MAX3080E, MAX3083E, MAX3086E: Pin Configuration
MAX3080E, MAX3083E, MAX3086E: Pin Configuration
Applications/Uses
  • Industrial Control Local Area Networks
  • Level Translators
  • RS-422/RS-485 Communications
  • Transceivers for EMI-Sensitive Applications
DataSheet
titleDownload file
MAX3080E-MAX3089E Data SheetMAX3080E-MAX3089E.pdf
Parametrics
Part NumberTx/RxDuplexVSUPPLY
(V)
ICC
(mA)
Data Rate
(kbps)
ESD Protect.
(±kV)
Tx ENRx ENICC (Shutdn.)
(µA)
Rx/Tx on BusRx Failsafe w/ InputsSlew Rate LimitingOper. Temp.
(°C)
Package/PinsBudgetary
Price
typmintypSee Notes
MAX3080E1Tx + 1RxFull50.375115-YesYes0.001256Open or ShortedNo-40 to +85
0 to +70
PDIP(N)/14
SOIC(N)/14
$1.75 @1k
MAX3081EFull11515NoNo-PDIP(N)/8
SOIC(N)/8
MAX3082EHalf11515YesYes0.001PDIP(N)/8
SOIC(N)/8
MAX3083EFull50015YesYes0.001PDIP(N)/14
SOIC(N)/14
MAX3084EFull50015NoNo-PDIP(N)/8
SOIC(N)/8
MAX3085EHalf50015YesYes0.001PDIP(N)/8
SOIC(N)/8
MAX3086EFull1000015YesYes0.001PDIP(N)/14
SOIC(N)/14
MAX3087EFull1000015NoNo-PDIP(N)/8
SOIC(N)/8
MAX3088EHalf1000015YesYes0.001PDIP(N)/8
SOIC(N)/8
MAX3089EHalf/Full1000015YesYes0.001PDIP(N)/14
SOIC(N)/14
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX3087ECPANo Longer AvailableMAX3087ECPA+PDIP(N),;8 pin;81.9 mm²0°C to +70°CNo
MAX3087ECPA+ActivePDIP(N),;8 pin;81.9 mm²0°C to +70°CLead Free
MAX3087ECSANo Longer AvailableMAX3087ECSA+SOIC(N),;8 pin;30.9 mm²0°C to +70°CNo
MAX3087ECSA+ActiveSOIC(N),;8 pin;30.9 mm²0°C to +70°CLead Free
MAX3087ECSA+TActiveSOIC(N),;8 pin;30.9 mm²0°C to +70°CLead Free
MAX3087ECSA-TNo Longer AvailableMAX3087ECSA+TN.SO;8 pin0°C to +70°CSee data sheet
MAX3087EEPANo Longer AvailableMAX3087EEPA+PDIP(N),;8 pin;81.9 mm²-40°C to +85°CNo
MAX3087EEPA+ActivePDIP(N),;8 pin;81.9 mm²-40°C to +85°CLead Free
MAX3087EESANo Longer AvailableMAX3087EESA+SOIC(N),;8 pin;30.9 mm²-40°C to +85°CNo
MAX3087EESA+ActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX3087EESA+TActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
MAX3087EESA-TNo Longer AvailableMAX3087EESA+TN.SO;8 pin-40°C to +85°CSee data sheet
MAX3087ESA/GG8ActiveSOIC (;-40°C to +85°CSee data sheet
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