Part Details for LTC491IS by Analog Devices Inc
Results Overview of LTC491IS by Analog Devices Inc
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (6 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
Applications
Industrial Automation
Computing and Data Storage
Electronic Manufacturing
Renewable Energy
Robotics and Drones
LTC491IS Information
LTC491IS by Analog Devices Inc is a Line Driver or Receiver.
Line Driver or Receivers are under the broader part category of Drivers And Interfaces.
A driver controls the current or voltage delivered to components like LCDs or motors, while an interface component connects systems for data transfer and control. Read more about Drivers And Interfaces on our Drivers And Interfaces part category page.
Price & Stock for LTC491IS
| Part # | Distributor | Description | Stock | Price | Buy | |
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Vyrian | Peripheral ICs | 1631 |
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RFQ |
Part Details for LTC491IS
LTC491IS CAD Models
LTC491IS Part Data Attributes
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LTC491IS
Analog Devices Inc
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Datasheet
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LTC491IS
Analog Devices Inc
Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, CMOS, PDSO14
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| Rohs Code | No | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | ANALOG DEVICES INC | |
| Package Description | PLASTIC, SOIC-14 | |
| Reach Compliance Code | not_compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Samacsys Manufacturer | Analog Devices | |
| Additional Feature | TRISTATABLE RECEIVER; 1 RECEIVER ACTIVE UNDER SHUTDOWN | |
| Differential Output | YES | |
| Driver Number of Bits | 1 | |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER | |
| Interface IC Type | LINE TRANSCEIVER | |
| Interface Standard | EIA-422; EIA-485 | |
| JESD-30 Code | R-PDSO-G14 | |
| JESD-609 Code | e0 | |
| Length | 8.65 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 14 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| Output Characteristics | 3-STATE | |
| Output Polarity | COMPLEMENTARY | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Peak Reflow Temperature (Cel) | 235 | |
| Qualification Status | Not Qualified | |
| Receive Delay-Max | 150 ns | |
| Receiver Number of Bits | 1 | |
| Seated Height-Max | 1.75 mm | |
| Supply Voltage-Max | 5.25 V | |
| Supply Voltage-Min | 4.75 V | |
| Supply Voltage-Nom | 5 V | |
| Surface Mount | YES | |
| Technology | CMOS | |
| Temperature Grade | INDUSTRIAL | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | 20 | |
| Transmit Delay-Max | 50 ns | |
| Width | 3.9 mm |
Alternate Parts for LTC491IS
This table gives cross-reference parts and alternative options found for LTC491IS. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LTC491IS, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| LTC491IS | Linear Technology | Check for Price | LTC491 - Differential Driver and Receiver Pair; Package: SO; Pins: 14; Temperature Range: -40°C to 85°C | LTC491IS vs LTC491IS |
| LTC491IS#PBF | Linear Technology | Check for Price | LTC491 - Differential Driver and Receiver Pair; Package: SO; Pins: 14; Temperature Range: -40°C to 85°C | LTC491IS vs LTC491IS#PBF |
| LTC491CS#TRPBF | Analog Devices Inc | Check for Price | Differential Driver and Receiver Pair | LTC491IS vs LTC491CS#TRPBF |
| LTC491CS#TRPBF | Linear Technology | Check for Price | LTC491 - Differential Driver and Receiver Pair; Package: SO; Pins: 14; Temperature Range: 0°C to 70°C | LTC491IS vs LTC491CS#TRPBF |
| LTC491IS#TRPBF | Analog Devices Inc | Check for Price | Differential Driver and Receiver Pair | LTC491IS vs LTC491IS#TRPBF |
| LTC491CS#PBF | Linear Technology | Check for Price | LTC491 - Differential Driver and Receiver Pair; Package: SO; Pins: 14; Temperature Range: 0°C to 70°C | LTC491IS vs LTC491CS#PBF |
LTC491IS Frequently Asked Questions (FAQ)
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A good layout and routing practice for the LTC491IS involves keeping the analog and digital grounds separate, using a solid ground plane, and minimizing the length of the traces between the IC and the input/output components. Additionally, it's recommended to use a low-ESR capacitor for the input bypass capacitor and to place it as close as possible to the IC.
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The LTC491IS is specified to operate from -40°C to 125°C. To ensure operation within this range, it's essential to provide adequate heat sinking, especially in high-power applications. A thermal pad on the bottom of the IC can be connected to a heat sink or a copper plane on the PCB to dissipate heat. Additionally, the ambient temperature should be monitored to prevent overheating.
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The recommended input voltage range for the LTC491IS is 2.7V to 5.5V. The output voltage is regulated to 1.8V, 2.5V, or 3.3V, depending on the specific device variant. The input voltage range affects the output voltage in that a higher input voltage can result in a slightly higher output voltage, but the output voltage will still be regulated to the specified value.
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The enable pin (EN) is an active-high input that enables or disables the regulator. To ensure proper shutdown and startup, the EN pin should be driven high to enable the regulator and low to disable it. When the EN pin is low, the regulator is in shutdown mode, and the output voltage is zero. When the EN pin is high, the regulator is enabled, and the output voltage is regulated to the specified value.
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The current limit of the LTC491IS is typically 1.5A. The output current is limited by the internal current limit circuitry, which prevents the output current from exceeding 1.5A. If the output current exceeds this limit, the regulator will enter a current-limit mode, and the output voltage may drop to prevent damage to the IC.