LTC2862AHDD-2#PBF Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
Analog Devices LTC2862AHDD-2#PBF is a 60 V fault-protected, half-duplex RS-485 and RS-422 transceiver operating at up to 250 kbps with Schmitt-trigger inputs. It survives cable faults and bus contention up to ±60 V while maintaining EIA-485 compliance on a 3 V to 5.5 V supply. The 8-pin DFN package enables compact industrial communication node designs.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC2862AHDD-2#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.1500(MOQ 10)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- ±60 V fault protection on bus pins survives cable miswiring, ground faults, and long-line transients without damage
- Half-duplex RS-485/RS-422 transceiver with separate driver enable and receiver enable pins for flexible bus control
- 250 kbps maximum data rate with differential Schmitt-trigger receiver inputs for reliable operation in noisy industrial environments
- 3 V to 5.5 V supply range with 5 µA maximum receiver input current for low-power, multi-drop bus applications
Applications
LTC2862AHDD-2#PBF is designed for industrial RS-485 fieldbus nodes in Modbus RTU, PROFIBUS, and BACnet networks where cable fault tolerance is critical for uptime. Its ±60 V protection withstands common miswiring scenarios such as accidental connection to 48 V DC power rails without requiring external TVS protection. The device also suits building automation controllers, motor drive communications, and remote I/O modules where 250 kbps half-duplex RS-485 provides reliable long-distance communication up to 1200 m.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1698 |
| YTEOL | 10 |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| High Level Input Current-Max | 0.000005A |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-422; EIA-485 |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Out Swing-Min | 1.5V |
| Output Characteristics | 3-STATE |
| Output Low Current-Max | 0.003A |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Receive Delay-Max | 700ns |
| Receiver Number of Bits | 1 |
| Supply Current-Max | 8mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Supply Voltage1-Max | 5.5V |
| Supply Voltage1-Min | 3V |
| Supply Voltage1-Nom | 3.3V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 1500ns |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What fault voltage levels can the LTC2862AHDD-2#PBF withstand on its RS-485 bus pins without damage?
The LTC2862AHDD-2#PBF bus pins are protected against fault voltages from -60 V to +60 V, allowing them to survive accidental connection to 48 V DC power rails, 24 V industrial supplies, or AC mains coupling faults on cable shields. This eliminates the need for external TVS diodes on the A and B bus lines in most industrial RS-485 installations, saving 2 components per node.
At what maximum data rate does the LTC2862AHDD-2#PBF operate, and how far can an RS-485 bus run at that rate?
The LTC2862AHDD-2#PBF supports up to 250 kbps data rate on standard 120-ohm twisted-pair cable. At 250 kbps, the EIA-485 specification limits cable length to approximately 1200 m with proper 120-ohm end termination. For shorter runs under 100 m, higher data rates up to 500 kbps are achievable depending on cable capacitance and stub lengths at each node.
How do the separate driver enable and receiver enable pins on the LTC2862AHDD-2#PBF benefit half-duplex RS-485 bus management?
The LTC2862AHDD-2#PBF provides independent DE (driver enable) and RE-bar (receiver enable) pins rather than a single shared control. This allows the host controller to disable both driver and receiver simultaneously, placing the device in a low-power standby mode with under 5 µA bus current, which reduces bus loading on multi-drop networks with up to 256 nodes sharing the same RS-485 pair.
How does the Schmitt-trigger receiver input of the LTC2862AHDD-2#PBF improve noise immunity on long industrial cable runs?
The differential Schmitt-trigger receiver applies hysteresis of typically 50 mV between the positive-going and negative-going thresholds, preventing chatter when the differential bus voltage crosses zero in a noisy industrial environment. On a 500 m Modbus RTU cable with 100 mV of common-mode noise superimposed on 200 mV differential signals, the Schmitt trigger eliminates false bit transitions that would corrupt CRC-checked Modbus frames.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $4.0170 | $40.17 |
| 19+ | $2.8500 | $54.15 |
| 1000+ | $2.1500 | $2150.00 |
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