Purchase MAX3250, In-stock MAX3250 From SeekIC.
Part Number: MAX3250
Description: The MAX3250 is a 3.0V to 5.5V powered, ±50V isolated EIA/TIA-232 and V.28/V.24 communications interfac...
- Table of contents:
MAX3250
-
Suppliers
DataSheet
General Description
MAX3250 General Description
The MAX3250 is a 3.0V to 5.5V powered, ±50V isolated EIA/TIA-232 and V.28/V.24 communications interface with high data-rate capabilities. The MAX3250 is a dualdie part that operates with up to ±50V difference between the RS-232 side and the logic side (ISOCOM to GND). This makes the device ideal for operation in noisy conditions with high common-mode voltages. This feature prevents damage to the device if RS-232 lines are inadvertently short-circuited to a +24V or ±48V power bus.
The MAX3250 is powered by a single 3V to 5.5V supply on the logic side. Power is transferred from the logic side to the isolated side by ±100V external capacitors. The MAX3250 has two receivers (Rx) and two drivers (Tx) and is guaranteed to run at data rates of 250kbps while maintaining RS-232 output levels. The transceivers have a proprietary low-dropout transmitter output stage, delivering true RS-232 performance from a 3V to 5.5V supply with a dual charge pump. The device features aFAULT open-drain output to signal an excessive isolated-side voltage condition on any of the RS232 inputs. This output can drive an alarm LED or ca be monitored by the processor to prevent operation under these conditions. The receiver outputs are high impedance in shutdown, allowing multiple interfaces (IrDA, RS-232, RS-485) to be connected to the same UART. The MAX3250 is available in a space-saving 28-pin SSOP package.
MAX3250 Maximum Ratings
All Voltages Referenced to GND, Unless Otherwise Noted.
VCC...........................................................................-0.3V to +6V
ISOCOM................................................................................±80V
ISOVCC to ISOCOM....................................................-0.3V to +6V
V+ to ISOCOM (Note 1)..............................................-0.3V to +7V
V- to ISOCOM (Note 1)..............................................+0.3V to -7V
V+ + |V-| (Note 1)....................................................................13V
Input VoltagesT_IN,
SHDN..........................................................................-0.3V to +6V
R_IN to ISOCOM.....................................................................±25V
Output Voltages
T_OUT to ISOCOM................................................................±13.2V
R_OUT.............................................................-0.3V to (VCC+ 0.3V)
FAULT...........................................................................-0.3V to +6V
C1-, C2-...........................................................-0.3V to (VCC+ 0.3V)
C1+, C2+, C3+, C3-, C4+, C4-
to ISOCOM..................................................-0.3V to (ISOVCC+ 0.3V)
T_OUT Current.....................30mA (continuous), 50mA (peak, 10µs)
R_IN Current........................30mA (continuous), 50mA (peak, 10µs)
ISOCOM Current...........30mA (continuous), 50mA (peak, 10µs)
Short-Circuit Duration T_OUT to ISOCOM........................Continuous
Continuous Power Dissipation (TA= +70°C)
28-Pin SSOP (derate 9.5mW/°C above +70°C)....................762mW
Operating Temperature Ranges
MAX3250CAI.....................................................0°C to +70°C
MAX3250EAI..................................................-40°C to +85°C
Storage Temperature Range..................................-65°C to +150°C
Lead Temperature (soldering, 10s).......................................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Note 1:
V+ and V- can have a maximum magnitude of 7V, but their absolute difference cannot exceed 13V.
MAX3250 Features
±50V Isolation
20µA Supply Current in Shutdown
250kbps Guaranteed Data Rate
FAULT Output
High-Impedance Transmitter and Receiver
Outputs in Shutdown
Space-Saving SSOP Package
Inductorless/Transformerless Design Simplifies
EMI Compliance
Low-Cost Replacement for Opto-Isolated
Transceivers
Meets EIA/TIA-232 Specifications Down to 3.0V
20µA Supply Current in Shutdown
250kbps Guaranteed Data Rate
FAULT Output
High-Impedance Transmitter and Receiver
Outputs in Shutdown
Space-Saving SSOP Package
Inductorless/Transformerless Design Simplifies
EMI Compliance
Low-Cost Replacement for Opto-Isolated
Transceivers
Meets EIA/TIA-232 Specifications Down to 3.0V
MAX3250 Typical Application
Industrial Control
Programmable Logic Controller
Point-of-Sale Equipment
PC-to-Router Connections
Diagnostic Ports
Telecom Equipment
Programmable Logic Controller
Point-of-Sale Equipment
PC-to-Router Connections
Diagnostic Ports
Telecom Equipment
MAX3250 Connection Diagram
MAX3250
PDF/DataSheet Download
- Datasheet: MAX3250
- File Size: 238543 KB
- Manufacturer: Maxim
- Click here to Download
- ·MAX002
- FILTRONIC [Filtronic Compound Semiconductors]
- Optical Communications - Modulator Driver Amplifier
- 42133 KB
- ·MAX038
- MAXIM [Maxim Integrated Products]
- High-Frequency Waveform Generator
- 207992 KB
- ·MAX038C/D
- MAXIM [Maxim Integrated Products]
- High-Frequency Waveform Generator
- 207992 KB
- ·MAX038CPP
- MAXIM [Maxim Integrated Products]
- High-Frequency Waveform Generator
- 207992 KB
- ·MAX038CWP
- MAXIM [Maxim Integrated Products]
- High-Frequency Waveform Generator
- 207992 KB
- ·MAX038EPP
- MAXIM [Maxim Integrated Products]
- High-Frequency Waveform Generator
- 207992 KB
- ·MAX038EVKIT
- Maxim
- Evaluation Kit for the MAX038
- 106491 KB
- ·MAX038EWP
- MAXIM [Maxim Integrated Products]
- High-Frequency Waveform Generator
- 207992 KB
MAX3250 Relative Products
MAX325
The MAX323/MAX324/MAX325 are precision, dual,SPST analog switches. They are single-supply devices designed to operate from +2.7V to +16V. The MAX323 has two normally open (NO) switches, and the MAX324 has two normally closed (NC) switches. The MAX325 has one...
MAX324EUA+T
IC SW ANLG DUAL SPST PREC 8MSOP
MAX324EUA+
IC SW ANLG DUAL SPST PREC 8MSOP
MAX324ESA+T
IC SWITCH DUAL SPST 8SOIC
MAX324ESA+
IC SWITCH DUAL SPST 8SOIC
MAX324CUA+T
IC SW ANLG SPST 8-UMAX
Hotspot Suppliers Product
TPS63000DRCR
Price: 2.03-3 USD
10SON, buck-boost converter, 1.2 V ~ 5.5 V, 800mA, 1.25MHz ~ 1.5MHz
TLP112
Price: 0.3-0.5 USD
SOP5, TOSHIBA photocoupler, SOP, 20 mA, Forward current 25 mA, -0.5~15 V Supply voltage
LT1074IT7
Price: 1-10 USD
5A monolithic bipolar switching regulator, TO-220-7, 100kHz Switching Frequency, Programmable Curr...
MAX113CAG
Price: 5-10 USD
analog-to-digital converter, QFP, -0.3V to +7V, microprocessor-compatible, 8-bit, 4-channel, Low P...
LE88246DLC
Price: 2.27-2.55 USD
ABS VoicePort device, QFP, 16 kHz, LE88246DLC, Legerity
XC4VLX80-10FFG1148
Price: 200-500 USD
FPGA, 1148-FBGA, –0.5 to +4.0 V, SelectIO Technology, Differential Global Clocks, Smart RAM Memory...
CD4010BE
Price: 0.15-0.25 USD
16PDIP, CMOS Hex buffer, Through Hole, 3 V ~ 18 V, high voltage types
C1005COG1C101JT
Price: 0.001-0.002 USD
Capacitors, TDK, C1005COG1C101JT
ADS1112IDGSR
Price: 2.78-3.17 USD
16-Bit, Analog-to-Digital Converter, MSOP-10, -0.3V to +6V, 100mA
ATM39B-556757
Price: 1.45-5 USD
ATM39B-556757, STMicroelectronics, Integrated Circuits (ICs)
XC3S700AN
Price: 40-60 USD
1.2V, Field-Programmable Gate Array, SPARTAN-3AN, 700K, 484FBGA
VS1003B
Price: 1.5-4 USD
16/32-button player, QFP48, VLSI, solution audio decoder, High transfer speed, 48 kHz, 16-bit
