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SP483ES-L Equivalent & Substitute Parts
Part Overview
The SP483ES-L is a half-duplex RS422/RS485 transceiver interface IC manufactured by MaxLinear, Inc., housed in an 8-DIP package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible functionality.
The SP483ES-L operates as a 1/1 transceiver (one driver, one receiver) with a 250 kbps data rate and 4.75V to 5.25V supply voltage range. Its through-hole mounting and standard 8-DIP package enable direct replacement with compatible alternatives that maintain electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | SP483ES-L |
|---|---|
| Manufacturer | MaxLinear, Inc. |
| Type | Transceiver Half Duplex |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 |
| Data Rate | 250 kbps |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C |
| Receiver Hysteresis | 10 mV |
| Mounting Type | Through Hole |
| Package / Case | 8-DIP (0.300", 7.62mm) |
| Supplier Device Package | 8-PDIP |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution compatibility for the SP483ES-L is determined by the following critical parameters:
Mandatory Compatibility Criteria:
- Protocol: RS422/RS485 half-duplex operation
- Number of Drivers/Receivers: 1/1 configuration
- Package / Case: 8-DIP (0.300", 7.62mm)
- Supplier Device Package: 8-PDIP
- Mounting Type: Through Hole
- Data Rate: 250 kbps
- Voltage - Supply: 4.75V ~ 5.25V
Variable Parameters (Allowable Differences):
- Receiver Hysteresis: 10 mV to 75 mV (within acceptable RS422/RS485 specifications)
- Operating Temperature: -40°C ~ 85°C (full range) or 0°C ~ 70°C (commercial range)
- Manufacturer: MaxLinear, Analog Devices, or Maxim Integrated
- Product Status: Active or Obsolete
Substitute parts are grouped into two categories based on operating temperature range and supply voltage compatibility:
Group A - 5V Supply, Extended Temperature (-40°C ~ 85°C): LTC1483IN8#PBF, MAX1483EPA+, MAX3483EEPA+, MAX3483EPA+
Group B - 5V Supply, Commercial Temperature (0°C ~ 70°C): LTC1483CN8#PBF, LTC485CN8#PBF, MAX1483CPA+, MAX3483CPA+, MAX3483ECPA+
Group C - 3V Supply (Not Compatible with SP483ES-L): MAX3483CPA+, MAX3483ECPA+, MAX3483EEPA+, MAX3483EPA+ (voltage incompatible; listed for reference only)
Parameter Comparison
| Part Number | Manufacturer | Protocol | Drivers/Receivers | Data Rate | Voltage - Supply | Operating Temperature | Receiver Hysteresis | Package | Product Status |
|---|---|---|---|---|---|---|---|---|---|
| SP483ES-L | MaxLinear, Inc. | RS422, RS485 | 1/1 | 250 kbps | 4.75V ~ 5.25V | -40°C ~ 85°C | 10 mV | 8-DIP | Obsolete |
| LTC1483CN8#PBF | Analog Devices Inc. | RS422, RS485 | 1/1 | 250 kbps | 4.75V ~ 5.25V | 0°C ~ 70°C | 45 mV | 8-DIP | Active |
| LTC1483IN8#PBF | Analog Devices Inc. | RS422, RS485 | 1/1 | 250 kbps | 4.75V ~ 5.25V | -40°C ~ 85°C | 45 mV | 8-DIP | Active |
| LTC485CN8#PBF | Analog Devices Inc. | RS422, RS485 | 1/1 | — | 4.75V ~ 5.25V | 0°C ~ 70°C | 70 mV | 8-DIP | Active |
| LTC485IN8#PBF | Analog Devices Inc. | RS422, RS485 | 1/1 | — | 4.75V ~ 5.25V | -40°C ~ 85°C | 70 mV | 8-DIP | Active |
| MAX1483CPA+ | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 250 kbps | 4.75V ~ 5.25V | 0°C ~ 70°C | 75 mV | 8-DIP | Active |
| MAX1483EPA+ | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 250 kbps | 4.75V ~ 5.25V | -40°C ~ 85°C | 75 mV | 8-DIP | Active |
| MAX3483CPA+ | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | 0°C ~ 70°C | 50 mV | 8-DIP | Active |
| MAX3483ECPA+ | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | 0°C ~ 70°C | 50 mV | 8-DIP | Active |
| MAX3483EEPA+ | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | -40°C ~ 85°C | 50 mV | 8-DIP | Active |
| MAX3483EPA+ | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | -40°C ~ 85°C | 50 mV | 8-DIP | Active |
Engineering Selection Recommendations
Primary Substitutes (5V Supply, Full Temperature Range -40°C ~ 85°C):
LTC1483IN8#PBF and MAX1483EPA+ are the preferred direct replacements for SP483ES-L in applications requiring extended operating temperature coverage. Both parts maintain 4.75V ~ 5.25V supply voltage compatibility, 250 kbps data rate, and -40°C ~ 85°C operating range. LTC1483IN8#PBF is manufactured by Analog Devices Inc. with ROHS3 compliance and REACH unaffected status. MAX1483EPA+ is produced by Analog Devices Inc./Maxim Integrated with identical compliance certifications. Both are classified as Active products with established supply availability.
Secondary Substitutes (5V Supply, Commercial Temperature Range 0°C ~ 70°C):
LTC1483CN8#PBF, LTC485CN8#PBF, and MAX1483CPA+ are suitable for applications operating within 0°C ~ 70°C temperature limits. These parts maintain full 5V supply voltage compatibility and 250 kbps data rate (LTC485CN8#PBF data rate not specified). All three are Active products with ROHS3 compliance and REACH unaffected status.
Not Recommended for Direct Substitution:
MAX3483 series parts (MAX3483CPA+, MAX3483ECPA+, MAX3483EEPA+, MAX3483EPA+) operate at 3V ~ 3.6V supply voltage and are incompatible with SP483ES-L's 4.75V ~ 5.25V requirement. These parts are listed in the substitute database but require separate power supply design and are not direct pin-compatible replacements.
All recommended substitutes maintain 8-DIP through-hole packaging, MSL 1 (Unlimited) moisture sensitivity, and identical mechanical footprints for direct PCB replacement.
Frequently Asked Questions (FAQ)
Q: Can LTC1483CN8#PBF replace SP483ES-L in all applications?
A: LTC1483CN8#PBF is compatible with SP483ES-L for applications operating within 0°C ~ 70°C. For systems requiring -40°C ~ 85°C operation, use LTC1483IN8#PBF or MAX1483EPA+ instead. All three maintain identical 4.75V ~ 5.25V supply voltage and 250 kbps data rate.
Q: What is the difference between LTC1483IN8#PBF and LTC1483CN8#PBF?
A: Both parts are manufactured by Analog Devices Inc. with identical electrical specifications except operating temperature range. LTC1483IN8#PBF operates -40°C ~ 85°C (industrial grade), while LTC1483CN8#PBF operates 0°C ~ 70°C (commercial grade). The "I" suffix denotes industrial temperature range; the "C" suffix denotes commercial temperature range.
Q: Are MAX3483 series parts compatible with SP483ES-L?
A: MAX3483 series parts (MAX3483CPA+, MAX3483ECPA+, MAX3483EEPA+, MAX3483EPA+) are not direct substitutes. They operate at 3V ~ 3.6V supply voltage, incompatible with SP483ES-L's 4.75V ~ 5.25V requirement. These parts require separate power supply design and are not pin-compatible replacements.
Q: What does receiver hysteresis variation mean for substitution?
A: Receiver hysteresis ranges from 10 mV (SP483ES-L) to 75 mV (MAX1483 series) across the substitute parts. All values fall within RS422/RS485 standard specifications. Higher hysteresis improves noise immunity in electrically noisy environments; lower hysteresis provides faster signal transitions. Selection depends on application noise characteristics, not substitution compatibility.
Q: Can I use LTC485IN8#PBF as a substitute?
A: LTC485IN8#PBF is compatible with SP483ES-L for applications requiring -40°C ~ 85°C operation and 4.75V ~ 5.25V supply voltage. However, its data rate specification is not provided in the component database. For applications requiring confirmed 250 kbps operation, LTC1483IN8#PBF or MAX1483EPA+ are preferred.
Q: What is the significance of "Active" product status for substitutes?
A: All recommended substitute parts are classified as Active, indicating current manufacturing and established supply chains. SP483ES-L is Obsolete, making Active substitutes necessary for new designs and ongoing system support. Active status ensures long-term availability and supply reliability.
Q: Are all substitute parts ROHS3 compliant?
A: All Analog Devices Inc. and Maxim Integrated substitute parts listed are ROHS3 compliant with REACH unaffected status. SP483ES-L compliance information is not specified in the component database. Verify compliance requirements for your specific application before final part selection.
Q: Can substitute parts be used in existing SP483ES-L PCB designs without modification?
A: Yes. All substitute parts maintain identical 8-DIP (0.300", 7.62mm) through-hole packaging and 8-PDIP supplier device package. Direct PCB replacement is possible without layout modifications. Verify supply voltage compatibility with your system design before installation.
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