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reference designADBMS6822 | Demoboard ADBMS6822

Analog Devices ADBMS6822 | Demoboard ADBMS6822

Single/Dual isoSPI TransceiverSingle/Dual isoSPI Transceiver

Overview

TopologyRF signals / communications
Input voltage3-30 V
IC revision02C

Description

The ADBMS6821 (single) and ADBMS6822 (dual) provide bidirectional isolated serial port interface (isoSPI™) communications between two isolated devices through a single twisted pair connection for each data link. Each transceiver encodes logic states into signals that are transmitted across an isolation barrier to another transceiver. The receiving device decodes the transmission and drives the slave bus to the appropriate logic states. The isolation barrier can be bridged by capacitors or by a pulse transformer to achieve hundreds of volts of isolation.

Features

  • Up to 2 Mbps isolated bidirectional serial data communications
  • Drop in compatible: single (ADBMS6821) and dual (ADBMS6822)
  • Fully independent dual transceivers (ADBMS6822)
  • Simple galvanic isolation using capacitors or transformers
  • Bidirectional interface over a single twisted pair
  • Supports cable lengths up to 100 meters
  • Very low EMI susceptibility and emissions
  • LPCM support for Analog Devices battery monitors
  • Interrupt output for LPCM system wake-up
  • 4 Mbps unidirectional mode
  • Requires no software changes in most SPI systems
  • Ultralow idle current
  • Automatic interface wake-up detection
  • Operating temperature range: –40°C to +125°C
  • 3.0 V to 5.5 V isoSPI driver power supply
  • 1.7 V to 5.5 V interface to microcontrollers
  • 3.0 V to 30 V input for powering wake-up and monitoring functions (12 V battery compatible)
  • Available in 32-lead, side solderable LFCSP package
  • AEC-Q100 qualified for automotive applications

Typical applications

  • Single/Dual transceiver
  • Electric and hybrid electric vehicles
  • Backup battery systems
  • Remote sensors

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
2θ50% typ.(°)
Pins
Type
Mount
L(mm)
H(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
SamplesAvailability & Sample
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150060RS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 625 nm, Red
Simu­lation
Availability
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Downloads27 files

RAY files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Dominant Wavelength [typ.]625 nm
Emitting ColorRed 
Peak Wavelength [typ.]630 nm
Luminous Intensity [typ.]250 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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MountSMT 
Length1.6 mm
Height0.7 mm
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Operating Temperature -40 °C up to +85 °C
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61300811121
SPECWR-PHD Pin Header - Single, –, –
Simu­lation–
Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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Pins8 
TypeStraight 
MountTHT 
Length20.32 mm
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Rated Current3 A
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
–Check availability