MAX437ESA-T资料

General Description

The MAX13080E–MAX13089E +5.0V, ±15kV ESD-protect-

ed, RS-485/RS-422 transceivers feature one driver and

one receiver. These devices include fail-safe circuitry,

guaranteeing a logic-high receiver output when receiver

inputs are open or shorted. The receiver outputs a logic-

high if all transmitters on a terminated bus are disabled

(high impedance). The MAX13080E–MAX13089E include

a hot-swap capability to eliminate false transitions on the

bus during power-up or hot insertion.

The MAX13080E/MAX13081E/MAX13082E feature

reduced slew-rate drivers that minimize EMI and

reduce reflections caused by improperly terminated

cables, allowing error-free data transmission up to

250kbps. The MAX13083E/MAX13084E/MAX13085E

also feature slew-rate-limited drivers but allow transmit

speeds up to 500kbps. The MAX13086E/MAX13087E/

For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at

1-888-629-4642, or visit Maxim’s website at .General Description

The MAX481, MAX483, MAX485, MAX487–MAX491, and

MAX1487 are low-power transceivers for RS-485 and RS-

422 communication. Each part contains one driver and one

receiver. The MAX483, MAX487, MAX488, and MAX489

feature reduced slew-rate drivers that minimize EMI and

reduce reflections caused by improperly terminated cables,

thus allowing error-free data transmission up to 250kbps.

The driver slew rates of the MAX481, MAX485, MAX490,

MAX491, and MAX1487 are not limited, allowing them to

transmit up to 2.5Mbps.

These transceivers draw between 120µA and 500µA of

supply current when unloaded or fully loaded with disabled

drivers. Additionally, the MAX481, MAX483, and MAX487

General Description

The MAX4450 single and MAX4451 dual op amps are

unity-gain-stable devices that combine high-speed per-

formance with rail-to-rail outputs. Both devices operate

from a +4.5V to +11V single supply or from ±2.25V to

±5.5V dual supplies. The common-mode input voltage

range extends beyond the negative power-supply rail

(ground in single-supply applications).

The MAX4450/MAX4451 require only 6.5mA of quies-

cent supply current per op amp while achieving a

210MHz -3dB bandwidth and a 485V/µs slew rate. Both

devices are an excellent solution in low-power/low-

voltage systems that require wide bandwidth, such as

video, communications, and instrumentation.

The MAX4450 is available in the ultra-small 5-pin SC70

package, while the MAX4451 is available in space-saving 8-pin SOT23 and SO packages.

Applications

For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at

1-888-629-4642, or visit Maxim’s website at .General Description

The MAX481, MAX483, MAX485, MAX487–MAX491, and

MAX1487 are low-power transceivers for RS-485 and RS-

422 communication. Each part contains one driver and one

receiver. The MAX483, MAX487, MAX488, and MAX489

feature reduced slew-rate drivers that minimize EMI and

reduce reflections caused by improperly terminated cables,

thus allowing error-free data transmission up to 250kbps.

The driver slew rates of the MAX481, MAX485, MAX490,

MAX491, and MAX1487 are not limited, allowing them to

transmit up to 2.5Mbps.

These transceivers draw between 120µA and 500µA of

supply current when unloaded or fully loaded with disabled

drivers. Additionally, the MAX481, MAX483, and MAX487