Allicdata Part #: | ADM4851ARZ-REEL7TR-ND |
Manufacturer Part#: |
ADM4851ARZ-REEL7 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Analog Devices Inc. |
Short Description: | IC TXRX RS485/422 500KBPS 8-SOIC1/1 Transceiver Ha... |
More Detail: | N/A |
DataSheet: | ADM4851ARZ-REEL7 Datasheet/PDF |
Quantity: | 9000 |
Series: | ADM4851 |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Type: | Transceiver |
Protocol: | RS422, RS485 |
Number of Drivers/Receivers: | 1/1 |
Duplex: | Half |
Data Rate: | 500kbps |
Receiver Hysteresis: | 20mV |
Voltage - Supply: | 4.75 V ~ 5.25 V |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Surface Mount |
Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
Supplier Device Package: | 8-SOIC |
Base Part Number: | ADM4851 |
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1. DESCRIPTION
The ADM4851ARZ-REEL7 are differential line transceivers suitable for high speed, half-duplex and full duplex data communication on multipoint bus transmission lines. They are designed for balanced data transmission and comply with EIA Standards RS-485 and RS-422. The ADM4851ARZ-REEL7 are half-duplex transceivers that share differential lines and have separate enable inputs for the driver and receiver. The full duplex ADM4851ARZ-REEL7 transceivers have dedicated differential line driver outputs and receiver inputs. The devices have a 1/8-unit load receiver input impedance, which allows up to 256 transceivers on one bus. Because only one driver must be enabled at any time, the output of a disabled or powered down driver is three-stated to avoid overloading the bus. The receiver inputs have a true fail-safe feature, which 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 ends. The driver outputs are slew rate limited to reduce EMI and data errors caused by reflections from improperly terminated buses. Excessive power dissipation caused by bus contention or by output shorting is prevented with a thermal shutdown circuit. The devices are fully specified over the commercial and industrial temperature ranges and are available in 8-lead SOIC, 8-lead LFCSP , and 8-lead MSOP packages.
2. FEATURES
1. Electronics industries alliance (EIA) RS-485/RS-422 compliant
2. Half-duplex and full duplex options
3. Reduced slew rates for low electromagnetic interference (EMI)
4. True fail-safe receiver inputs
5. 5 µA (maximum) supply current in shutdown mode
6. Up to 256 transceivers on one bus
7. Outputs high-Z when disabled or powered off
8. −7 V to +12 V bus common-mode range
9. Thermal shutdown and short-circuit protection
10. Pin-compatible with the MAX308x
11. Specified over the −40°C to +85°C temperature range
12. Available in 8-lead SOIC, 8-lead LFCSP, and 8-lead MSOP
13. Qualified for automotive applications
3. APPLICATIONS
1. Low power RS-485 applications
2. EMI sensitive systems
3. DTE to DCE interfaces
4. Industrial control
5. Packet switching
6. Local area networks
7. Level translators
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