MAX3293 Datasheet

  • MAX3293

  • "250Kbps, +3.3V, SOT23, RS-485/ RS-422 Transmitters"

  • 327.32KB

  • Maxim

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19-2770; Rev 1; 2/03
20Mbps, +3.3V, SOT23 RS-485/
RS-422 Transmitters
General Description
The MAX3293/MAX3294/MAX3295 low-power, high-
speed transmitters for RS-485/RS-422 communication
operate from a single +3.3V power supply. These
devices contain one differential transmitter. The
MAX3295 transmitter operates at data rates up to
20Mbps, with an output skew of less than 5ns, and a
guaranteed driver propagation delay below 25ns. The
MAX3293 (250kbps) and MAX3294 (2.5Mbps) are
slew-rate limited to minimize EMI and reduce reflections
caused by improperly terminated cables.
The MAX3293/MAX3294/MAX3295 output level is guar-
anteed at +1.5V with a standard 54鈩?load, compliant
with RS-485 specifications. The transmitter draws 5mA
of supply current when unloaded, and 1碌A in low-
power shutdown mode (DE = GND).
Hot-swap circuitry eliminates false transitions on the data
cable during circuit initialization or connection to a live
backplane, and short-circuit current limiting and thermal-
shutdown circuitry protect the driver against excessive
power dissipation.
The MAX3293/MAX3294/MAX3295 are offered in a
6-pin SOT23 package, and are specified over the
automotive temperature range.
鈾?/div>
Space-Saving 6-Pin SOT23 Package
鈾?/div>
250kbps/2.5Mbps/20Mbps Data Rates Available
鈾?/div>
Operate from a Single +3.3V Supply
鈾?/div>
ESD Protection
卤9kV鈥擧uman Body Model
鈾?/div>
Slew-Rate Limited for Errorless Data
Transmission (MAX3293/MAX3294)
鈾?/div>
1碌A Low-Current Shutdown Mode
鈾?/div>
-7V to +12V Common-Mode Input Voltage Range
鈾?/div>
Current Limiting and Thermal Shutdown for
Driver-Overload Protection
鈾?/div>
Hot-Swap Inputs for Telecom Applications
鈾?/div>
Automotive Temperature Range (-40掳C to +125掳C)
Features
MAX3293/MAX3294/MAX3295
Ordering Information
PART
MAX3293AUT-T
MAX3294AUT-T
MAX3295AUT-T
TEMP RANGE
-40掳C to +125掳C
-40掳C to +125掳C
-40掳C to +125掳C
PIN-
PACKAGE
6 SOT23-6
6 SOT23-6
6 SOT23-6
Applications
RS-485/RS-422 Communications
Clock Distribution
Telecom Equipment
Automotive
Security Equipment
Point-of-Sale Equipment
Industrial Control
Selector Guide
PART
MAX3293AUT-T
MAX3294AUT-T
MAX3295AUT-T
MAXIMUM
DATA RATE
(Mbps)
0.25
2.5
20
SLEW-RATE
LIMITED
Yes
Yes
No
TOP
MARK
ABNI
ABNJ
ABNK
Pin Configuration
TOP VIEW
DI
1
6
Y
DI
DE
Typical Operating Circuit
120鈩?/div>
Z
D
Y
R
RO
V
CC
2
MAX3293
MAX3294
MAX3295
5
GND
DE
3
4
Z
MAX3293
MAX3294
MAX3295
MAX3280E
MAX3281E
MAX3283E
MAX3284E
SOT23-6
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.

MAX3293 PDF文件相关型号

MAX3294,MAX3295

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