MAX3088:Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

The MAX3080-MAX3089 high-speed transceivers for RS-485/RS-422 communication 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 MAX3080/MAX3081/MAX3082 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 MAX3083/MAX3084/MAX3085 offer higher driver output slew-rate limits, allowing transmit speeds up to 500kbps. The MAX3086/MAX3087/MAX3088's driver slew rates are not limited, making transmit speeds up to 10Mbps possible. The MAX3089's slew rate is selectable between 115kbps, 500kbps, and 10Mbps by driving a selector pin with a single three-state driver. 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 MAX3082/MAX3085/MAX3088 are intended for halfduplex communications, while the MAX3080/MAX3081/ MAX3083/MAX3084/MAX3086/MAX3087 are intended for full-duplex communications. The MAX3089 is selectable between half-duplex and full-duplex operation. It also features independently programmable receiver and transmitter output phase via separate pins.

Key Features
  • For Fault-Tolerant Applications: MAX3430: ±80V Fault-Protected, Fail-Safe, 1/4- Unit Load, +3.3V RS-485 Transceiver
  • For Low-Voltage Applications: MAX3362: +3.3V, High-Speed, RS-485/RS-422 Transceiver in a SOT23 Package
  • For Multiple Transceiver Applications: MAX3030E-MAX3033E: ±15kV ESD-Protected, +3.3V, Quad, RS-422 Transmitters MAX3040-MAX3045: ±10kV ESD-Protected, Quad, +5V, RS-485/RS-422 Transmitters
MAX3080, MAX3083, MAX3086: Pin Configuration
MAX3080, MAX3083, MAX3086: Pin Configuration
Applications/Uses
  • Industrial-Control Local Area Networks
  • Level Translators
  • RS-422/RS-485 Communications
  • Transceivers for EMI-Sensitive Applications
DataSheet
titleDownload file
MAX3080-MAX3089 Data SheetMAX3080-MAX3089.pdf
Parametrics
Part NumberTx/RxDuplexVSUPPLY
(V)
ICC
(mA)
Data Rate
(kbps)
Tx ENRx ENICC (Shutdn.)
(µA)
Rx/Tx on BusRx Failsafe w/ InputsSlew Rate LimitingOper. Temp.
(°C)
Package/PinsBudgetary
Price
typmintypSee Notes
MAX30801Tx + 1RxFull50.375115YesYes0.001256Open or ShortedNo-40 to +85
0 to +70
PDIP(N)/14
SOIC(N)/14
$1.62 @1k
MAX3081Full115NoNo-NoPDIP(N)/8
SOIC(N)/8
$1.68 @1k
MAX3082Half115YesYes0.001NoPDIP(N)/8
SOIC(N)/8
$1.62 @1k
MAX3083Full500YesYes0.001NoPDIP(N)/14
SOIC(N)/14
$1.62 @1k
MAX3084Full500NoNo-NoPDIP(N)/8
SOIC(N)/8
$1.62 @1k
MAX3085Half500YesYes0.001NoPDIP(N)/8
SOIC(N)/8
$1.62 @1k
MAX3086Full10000YesYes0.001NoPDIP(N)/14
SOIC(N)/14
$1.62 @1k
MAX3087Full10000NoNo-NoPDIP(N)/8
SOIC(N)/8
$1.62 @1k
MAX3088Half10000YesYes0.001NoPDIP(N)/8
SOIC(N)/8
$1.62 @1k
MAX3089Half/Full10000YesYes0.001-PDIP(N)/14
SOIC(N)/14
$1.62 @1k
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX3088CPANo Longer AvailableMAX3088CPA+PDIP(N),;8 pin;81.9 mm²0°C to +70°CNo
MAX3088CPA+ActivePDIP(N),;8 pin;81.9 mm²0°C to +70°CLead Free
MAX3088CSANo Longer AvailableMAX3088CSA+SOIC(N),;8 pin;30.9 mm²0°C to +70°CNo
MAX3088CSA+ActiveSOIC(N),;8 pin;30.9 mm²0°C to +70°CLead Free
MAX3088CSA+TActiveSOIC(N),;8 pin;30.9 mm²0°C to +70°CLead Free
MAX3088CSA-TNo Longer AvailableMAX3088CSA+TN.SO;8 pin0°C to +70°CSee data sheet
MAX3088EPANo Longer AvailableMAX3088EPA+PDIP(N),;8 pin;81.9 mm²-40°C to +85°CNo
MAX3088EPA+ActivePDIP(N),;8 pin;81.9 mm²-40°C to +85°CLead Free
MAX3088ESANo Longer AvailableMAX3088ESA+SOIC(N),;8 pin;30.9 mm²-40°C to +85°CNo
MAX3088ESA+ActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX3088ESA+TActiveSOIC(N),;8 pin;30.9 mm²-40°C to +85°CLead Free
MAX3088ESA-TNo Longer AvailableMAX3088ESA+TN.SO;8 pin-40°C to +85°CSee data sheet
MAX3080-MAX3089.pdf MAX3089
Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface MAX5492
Oops...Practical ESD Protection vs. Foolhardy Placebos MAX13362
Methods for Trimming the Power Required in RS-485 Systems MAX3471
ESD Protection for I/O Ports MAX491E
Maxim Leads the Way in ESD Protection MAX491E
MAX3088.pdf MAX3088
MAX3080-MAX3089.pdf MAX3089