Analog Devices / Maxim Integrated MAX304x 5V Quad RS-485/RS-422 Transmitters
Analog Devices Inc. MAX304x 5V Quad RS-485/RS-422 Transmitters are designed for digital data transmission over twisted-pair balanced lines. All transmitter outputs are protected to ±10kV using the Human Body Model. In addition, the MAX304x withstands ±4kV per IEC 1000-4-4 Electrical Fast Transient/Burst Stressing. The MAX3040/MAX3043 (250kbps) and the MAX3041/MAX3044 (2.5Mbps) are slew-rate limited transmitters that minimize EMI and reduce reflections caused by improperly terminated cables, thus allowing error-free transmission.
These devices features a hot-swap capability that eliminates false transitions on the data cable during power-up or hot insertion. The MAX3042B/MAX3045B are optimized for data transfer rates up to 20Mbps, the MAX3041/MAX3044 for data rates up to 2.5Mbps, and the MAX3040/MAX3043 for data rates up to 250kbps.
Features
- ESD Protection: ±10kV—human body model
- Single +5V operation
- Guaranteed device-to-device skew (MAX3040/MAX3041/MAX3043/MAX3044)
- Pin-compatible with 'SN75174, '26LS31C and LTC487
- Hot-swappable for telecom applications
- Up to 20Mbps data rate (MAX3042B/MAX3045B)
- Slew-rate limited (data rates at 2.5Mbps and 250kbps)
- 2nA Low-power shutdown mode
- 1mA Operating supply current
- ±4kV EFT Fast transient burst immunity per IEC 1000-4-4
- Level 2 surge immunity per IEC 1000-4-5, unshielded cable model
- Ultra-small 16-Pin TSSOP, 16-pin narrow SO, and wide 16-pin SO
Applications
- Telecommunications equipment
- Industrial motor control
- Transmitter for ESD-sensitive applications
- Hand-held equipment
- Industrial PLCs
- Networking
Published: 2014-11-12
| Updated: 2023-04-18