LT1039ISW#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LT1039ISW#PBF is a triple RS-232 driver/receiver IC with 3 driver channels and Schmitt-trigger inputs, operating from a single supply in an 18-pin SOIC package. One receiver remains active during shutdown mode, preserving bus monitoring capability. Available from stock worldwide with competitive pricing.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- LT1039ISW#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.6900(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Triple RS-232 driver with Schmitt-trigger inputs for noise-immune serial communication in industrial environments
- Active receiver under shutdown mode allows bus monitoring without full-power operation, reducing system power consumption
- 18-pin SOIC package simplifies board layout for multi-channel EIA-232 interface designs
Applications
LT1039ISW#PBF is designed for multi-channel RS-232 serial communication in embedded systems, industrial controllers, and telecommunications equipment. Its 3-driver configuration supports simultaneous connection to multiple serial peripherals from a single IC, while the Schmitt-trigger inputs reject noise on long cable runs. The active-under-shutdown receiver makes it particularly useful in systems that require wake-on-serial-data functionality without full-chip power consumption.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1620 (SW18) |
| YTEOL | 9 |
| Additional Feature | 1 RECEIVER ACTIVE UNDER SHUTDOWN |
| Differential Output | NO |
| Driver Number of Bits | 3 |
| Input Characteristics | SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-232 |
| JESD-30 Code | R-PDSO-G18 |
| JESD-609 Code | e3 |
| Number of Functions | 3 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Receiver Number of Bits | 3 |
| Supply Voltage-Max | 15V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 12V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
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
How many RS-232 driver channels does LT1039ISW#PBF provide, and what input type does it use?
LT1039ISW#PBF integrates 3 RS-232 driver channels with Schmitt-trigger inputs, providing hysteresis to reject noise on long cable runs typically exceeding 1 meter in industrial environments where signal integrity is a concern.
Can LT1039ISW#PBF maintain serial bus monitoring during low-power shutdown mode?
Yes, LT1039ISW#PBF keeps 1 receiver active during shutdown mode, allowing the host processor to monitor incoming RS-232 data at EIA-232 voltage levels (±15 V maximum) without powering up the full 3-driver array, reducing system quiescent current.
What package and pin count does LT1039ISW#PBF come in, and how does this affect PCB layout for triple-channel RS-232 designs?
LT1039ISW#PBF uses an 18-pin SOIC package, which provides enough pins to route all 3 driver outputs and receiver inputs while maintaining the standard 1.27 mm pitch of SOIC, simplifying PCB routing compared to smaller packages in multi-channel RS-232 interface designs.
In what scenarios would LT1039ISW#PBF be preferred over a single-channel RS-232 transceiver?
LT1039ISW#PBF is preferred when a design requires 3 simultaneous RS-232 channels from a single IC, reducing BOM count and board space compared to using three separate single-channel transceivers, each occupying approximately 8 pins and additional decoupling capacitors at EIA-232 ±15 V signal levels.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
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.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $12.5200 | $12.52 |
| 10+ | $8.6220 | $86.22 |
| 19+ | $7.5400 | $143.26 |
| 1000+ | $5.6900 | $5690.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”