Overview
The ADM488ANZ, produced by Analog Devices Inc., is a low power, full-duplex, differential line transceiver designed for communication on multipoint bus transmission lines. It complies with both EIA RS-485 and RS-422 standards, making it suitable for balanced data transmission. The device operates from a single 5 V ± 10% power supply and is fabricated using BiCMOS technology, combining the benefits of low power CMOS with fast switching bipolar technology. The ADM488ANZ is available in various packages, including PDIP, SOIC, and TSSOP, and is fully specified over the industrial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage | 5 V ± 10% |
| Data Rate | Up to 250 kbps |
| Bus Common-Mode Range | −7 V to +12 V |
| Input Impedance | 12 kΩ |
| Short-Circuit Protection | Yes, with thermal shutdown |
| EMI Protection | 2 kV EFT protection, meets IEC1000-4-4 |
| EM Immunity | Meets IEC1000-4-3 |
| Supply Current | 30 μA |
| Operating Temperature Range | −40°C to +85°C |
| Package Types | PDIP, SOIC, TSSOP |
Key Features
- Compliance with EIA RS-485 and RS-422 standards
- Full-duplex data transfer capability
- Low power consumption with 30 μA supply current
- Reduced slew rate for low EM interference
- Fail-safe receiver feature for unconnected inputs
- Thermal shutdown circuit for short-circuit protection
- High EMI immunity and EFT protection
- Support for up to 32 transceivers on the differential bus
Applications
- Low power RS-485 and RS-422 systems
- DTE-DCE interface
- Packet switching
- Local area networks
- Data concentration
- Data multiplexers
- Integrated services digital network (ISDN)
Q & A
- What are the main standards that the ADM488ANZ complies with?
The ADM488ANZ complies with both EIA RS-485 and RS-422 standards.
- What is the operating supply voltage for the ADM488ANZ?
The operating supply voltage is 5 V ± 10%.
- What is the maximum data rate supported by the ADM488ANZ?
The maximum data rate is up to 250 kbps.
- What is the bus common-mode range for the ADM488ANZ?
The bus common-mode range is −7 V to +12 V.
- Does the ADM488ANZ have short-circuit protection?
Yes, it has short-circuit protection with a thermal shutdown circuit.
- What is the input impedance of the ADM488ANZ?
The input impedance is 12 kΩ.
- How many transceivers can be connected on the differential bus?
Up to 32 transceivers can be connected on the differential bus.
- What is the operating temperature range for the ADM488ANZ?
The operating temperature range is −40°C to +85°C.
- What packages are available for the ADM488ANZ?
The ADM488ANZ is available in PDIP, SOIC, and TSSOP packages.
- Does the ADM488ANZ have EMI protection?
Yes, it meets IEC1000-4-3 for EM immunity and has 2 kV EFT protection.
