19-2770; Rev 1; 2/03 20Mbps, +3.3V, SOT23 RS-485/ RS-422 Transmitters The MAX3293/MAX3294/MAX3295 low-power, highspeed 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 guaranteed at +1.5V with a standard 54Ω load, compliant with RS-485 specifications. The transmitter draws 5mA of supply current when unloaded, and 1µA in lowpower 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 thermalshutdown 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. Applications RS-485/RS-422 Communications Features ♦ Space-Saving 6-Pin SOT23 Package ♦ 250kbps/2.5Mbps/20Mbps Data Rates Available ♦ Operate from a Single +3.3V Supply ♦ ESD Protection ±9kV—Human Body Model ♦ Slew-Rate Limited for Errorless Data Transmission (MAX3293/MAX3294) ♦ 1µA Low-Current Shutdown Mode ♦ -7V to +12V Common-Mode Input Voltage Range ♦ Current Limiting and Thermal Shutdown for Driver-Overload Protection ♦ Hot-Swap Inputs for Telecom Applications ♦ Automotive Temperature Range (-40°C to +125°C) Ordering Information TEMP RANGE PINPACKAGE MAX3293AUT-T -40°C to +125°C 6 SOT23-6 MAX3294AUT-T -40°C to +125°C 6 SOT23-6 MAX3295AUT-T -40°C to +125°C 6 SOT23-6 PART Clock Distribution Selector Guide Telecom Equipment Automotive MAXIMUM DATA RATE (Mbps) SLEW-RATE LIMITED TOP MARK MAX3293AUT-T 0.25 Yes ABNI MAX3294AUT-T 2.5 Yes ABNJ MAX3295AUT-T 20 No ABNK PART Security Equipment Point-of-Sale Equipment Industrial Control Pin Configuration Typical Operating Circuit 120Ω TOP VIEW DI 1 VCC 2 6 MAX3293 MAX3294 MAX3295 DE 3 Y 5 GND 4 Z DI Z D Y R RO DE MAX3293 MAX3294 MAX3295 MAX3280E MAX3281E MAX3283E MAX3284E SOT23-6 ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX3293/MAX3294/MAX3295 General Description MAX3293/MAX3294/MAX3295 20Mbps, +3.3V, SOT23 RS-485/ RS-422 Transmitters ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND, unless otherwise noted.) Supply Voltage (VCC).............................................................+6V DE, DI .......................................................................-0.3V to +6V Y, Z .........................................................................-7V to +12.5V Maximum Continuous Power Dissipation (TA = +70°C) 6-Pin SOT23 (derate 6.25mW/°C above +70°C).........500mW Operating Temperature Ranges MAX32_ _AUT...............................................-40°C to +125°C Storage Temperature Range .............................-65°C to +160°C Junction Temperature .....................................................+160°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. ELECTRICAL CHARACTERISTICS (VCC = +3.3V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +3.3V and TA = +25°C.) (Notes 1, 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 3.135 3.300 3.465 V 5 mA 10 µA POWER SUPPLY Supply Voltage Supply Current in Normal Operation Supply Current in Shutdown Mode VCC IQ ISHDN No load, DI = VCC or GND, DE = VCC No load, DE = GND 1 DRIVER Differential Driver Output Change in Magnitude of Differential Output Voltage Driver Common-Mode Output Voltage Change in Magnitude of CommonMode Voltage VOD ∆VOD VOC ∆VOC Figure 1, DE = VCC, DI = GND or VCC R = 50Ω (RS-422), TA ≤ +85°C 2.0 VCC R = 27Ω (RS-485), TA ≤ +85°C 1.5 VCC V Figure 1, R = 27Ω or 50Ω, DE = VCC (Note 3) Figure 1, R = 27Ω or 50Ω, DE = VCC, DI = VCC or GND -1 Figure 1, R = 27Ω or 50Ω (Note 3) 0.2 V +3 V 0.2 V DRIVER LOGIC Input High Voltage VIH DE, DI Input Low Voltage VIL DE, DI Input Current IIN DE, DI IO Y, Z DE = GND, VCC = GND or +3.3V Output Leakage Driver Short-Circuit Foldback Output Current IOSFD Driver Short-Circuit Output Current IOSD 2.0 V 0.8 V -2 +2 µA VIN = +12V -20 +20 VIN = -7V -20 +20 µA (VCC - 1V) ≤ VOUT ≤ +12V, output high +25 -7V ≤ VOUT ≤ 1V, output high 0 ≤ VOUT ≤ +12V, output low -25 -250 -7V ≤ VOUT ≤ VCC, output high +250 mA mA Thermal-Shutdown Threshold TTS 160 °C Thermal-Shutdown Hysteresis TTSH 40 °C ±9 kV ESD Protection 2 Y, Z Human Body Model _______________________________________________________________________________________ 20Mbps, +3.3V, SOT23 RS-485/ RS-422 Transmitters (VCC = +3.3V ±5%, TA = +25°C, unless otherwise noted. Typical values are at VCC = +3.3V.) PARAMETER Driver Propagation Delay Driver Differential Output Rise or Fall Time Driver Output Skew Differential Driver Output Skew SYMBOL tPLH tPHL tR tF CONDITIONS MIN TYP MAX Figures 2, 3; RDIFF = 54Ω, CL = 50pF 400 1300 400 1300 Figures 2, 3; RDIFF = 54Ω, CL = 50pF 400 1200 400 1200 tSKEW Figures 2, 3; RDIFF = 54Ω, CL = 50pF, tSKEW = | tPLH - tPHL | (Note 5) -400 +400 tDSKEW Figures 2, 3; RDIFF = 54Ω, CL = 50pF -100 +100 Figures 2, 3; RDIFF = 54Ω, CL = 50pF 250 Maximum Data Rate UNITS ns ns ns ns kbps Driver Enable to Output High tZH Figures 4, 5; S2 closed, RL = 500Ω, CL = 100pF 2000 ns Driver Enable to Output Low tZL Figures 4, 5; S1 closed, RL = 500Ω, CL = 100pF 2000 ns Driver Disable Time from Low tLZ Figures 4, 5; S1 closed, RL = 500Ω, CL = 100pF 1000 ns Driver Disable Time from High tHZ Figures 4, 5; S2 closed, RL = 500Ω, CL = 100pF 1000 ns Same power supply, maximum temperature difference between devices = +30°C (Note 5) 900 ns MAX UNITS Device-to-Device Propagation Delay Matching SWITCHING CHARACTERISTICS (MAX3294) (VCC = +3.3V ±5%, TA = +25°C, unless otherwise noted. Typical values are at VCC = +3.3V.) PARAMETER Driver Propagation Delay Driver Differential Output Rise or Fall Time Driver Output Skew Differential Driver Output Skew SYMBOL tPLH tPHL tR tF CONDITIONS MIN 24 70 24 70 Figures 2, 3; RDIFF = 54Ω, CL = 50pF 10 70 10 70 -40 +40 +6 tSKEW Figures 2, 3; RDIFF = 54Ω, CL = 50pF, tSKEW = | tPLH - tPHL | (Note 5) tDSKEW Figures 2, 3; RDIFF = 54Ω, CL = 50pF -6 Figures 2, 3; RDIFF = 54Ω, CL = 50pF 2.5 Maximum Data Rate TYP Figures 2, 3; RDIFF = 54Ω, CL = 50pF ns ns ns ns Mbps Driver Enable to Output High tZH Figures 4, 5; S2 closed, RL = 500Ω, CL = 100pF 400 ns Driver Enable to Output Low tZL Figures 4, 5; S1 closed, RL = 500Ω, CL = 100pF 400 ns Driver Disable Time from Low tLZ Figures 4, 5; S1 closed, RL = 500Ω, CL = 100pF 100 ns Driver Disable Time from High tHZ Figures 4, 5; S2 closed, RL = 500Ω, CL = 100pF 100 ns Same power supply, maximum temperature difference between devices = +30°C (Note 5) 46 ns Device-to-Device Propagation Delay Matching _______________________________________________________________________________________ 3 MAX3293/MAX3294/MAX3295 SWITCHING CHARACTERISTICS (MAX3293) MAX3293/MAX3294/MAX3295 20Mbps, +3.3V, SOT23 RS-485/ RS-422 Transmitters SWITCHING CHARACTERISTICS (MAX3295) (VCC = +3.3V ±5%, TA = +25°C, unless otherwise noted. Typical values are at VCC = +3.3V.) PARAMETER Driver Propagation Delay Driver Differential Output Rise or Fall Time SYMBOL tPLH tPHL tR tF Driver Output Skew Differential Driver Output Skew CONDITIONS MIN TYP 25 Figures 2, 3; RDIFF = 54Ω, CL = 50pF 25 TA = -40°C to +125°C Figures 2, 3; RDIFF = 54Ω, CL = 50pF MAX UNITS ns 18.5 TA < +85°C 15 TA = -40°C to +125°C 18.5 TA < +85°C ns 15 tSKEW Figures 2, 3; RDIFF = 54Ω, CL = 50pF, tSKEW = | tPLH - tPHL | 5 ns tDSKEW Figures 2, 3; RDIFF = 54Ω, CL = 50pF 5 ns Maximum Data Rate Figures 2, 3; RDIFF = 54Ω, CL = 50pF, TA ≤ +85°C 20 Figures 2, 3; RDIFF = 54Ω, CL = 50pF 16 Mbps Driver Enable to Output High tZH Figures 4, 5; S2 closed, RL = 500Ω, CL = 100pF 400 ns Driver Enable to Output Low tZL Figures 4, 5; S1 closed, RL = 500Ω, CL = 100pF 400 ns Driver Disable Time from Low tLZ Figures 4, 5; S1 closed, RL = 500Ω, CL = 100pF 100 ns Driver Disable Time from High tHZ Figures 4, 5; S2 closed, RL = 500Ω, CL = 100pF 100 ns Same power supply, maximum temperature difference between devices = +30°C (Note 5) 25 ns Device-to-Device Propagation Delay Matching Note 1: Devices production tested at +25°C. Limits over the operating temperature range are guaranteed by design. Note 2: All currents into the device are positive; all currents out of the device are negative. All voltages are referenced to device ground, unless otherwise noted. Note 3: ∆VOD and ∆VOC are the changes in VOD and VOC, respectively, when the DI input changes state. Note 4: The maximum current applies to peak current just prior to foldback current limiting. Note 5: Not production tested. Guaranteed by design. 4 _______________________________________________________________________________________ 20Mbps, +3.3V, SOT23 RS-485/ RS-422 Transmitters Y R RL OUTPUT UNDER TEST VOD S1 VCC CL R S2 VOC Z Figure 1. Driver DC Test Load Figure 4. Enable/Disable Timing Test Load 3V DE 3V 1.5V 1.5V 0V DE DI tZL(SHDN), tZL CL Y VID RDIFF Z tLZ Y, Z VOL CL 2.3V OUTPUT NORMALLY LOW OUTPUT NORMALLY HIGH Y, Z 2.3V VOH - 0.25V 0V tZH(SHDN), tZH Figure 2. Driver Timing Test Circuit tHZ Figure 5. Driver Enable and Disable Times f = 1MHz, tR ≤ 3ns, tF ≤ 3ns 3V DI VOL + 0.25V 1.5V 0V 1.5V tPLH tPHL 1/2 VO Z VO Y 1/2 VO VO VDIFF 0V -VO VDIFF = V (Y) - V (Z) 90% 90% 10% 10% tR tF tSKEW = | tPLH - tPHL | Figure 3. Driver Propagation Delays _______________________________________________________________________________________ 5 MAX3293/MAX3294/MAX3295 Test Circuits and Timing Diagrams Typical Operating Characteristics (VCC = +3.3V, TA = +25°C, unless otherwise noted.) TA = +25°C 10 TA = -40°C 1.0 0.5 5 10 15 -10 20 50 80 -40 110 -10 20 50 80 110 DATA RATE (Mbps) TEMPERATURE (°C) TEMPERATURE (°C) OUTPUT CURRENT vs. DIFFERENTIAL OUTPUT VOLTAGE DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs. TEMPERATURE DRIVER OUTPUT CURRENT vs. DRIVER OUTPUT LOW VOLTAGE 20 10 0 3.0 120mA OUTPUT CURRENT (20mA/div) 30 MAX3293-95 toc05 40 MAX3293-95 toc06 3.5 DIFFERENTIAL OUTPUT VOLTAGE (V) MAX3293-95 toc04 50 RDIFF = 100Ω 2.5 2.0 RDIFF = 54Ω 1.5 0mA 1.0 2.50 2.75 3.00 3.25 3.50 -40 -10 20 50 80 DRIVER OUTPUT CURRENT vs. DRIVER OUTPUT HIGH VOLTAGE OUTPUT SKEW vs. TEMPERATURE 4 120mA 3 OUTPUT SKEW (ns) 12V 2V/div OUTPUT LOW VOLTAGE TEMPERATURE (°C) MAX3293-95 toc07 0V 110 DIFFERENTIAL OUTPUT VOLTAGE (V) DRIVER PROPAGATION DELAY vs. TEMPERATURE 2 1 40 MAX3293-95 toc09 2.25 PROPAGATION DELAY (ns) 1.75 2.00 MAX3293-95 toc08 OUTPUT CURRENT (mA) -40 20 0.8 0 0 0 1.2 0.4 5 0 DE = GND 1.6 SUPPLY CURRENT (µA) SUPPLY CURRENT (mA) 15 DE = VCC NO LOAD NO SWITCHING 1.5 SUPPLY CURRENT (mA) TA = +85°C TA = +125°C 2.0 MAX3293-95 toc02 DE = VCC NO LOAD 20 2.0 MAX3293-95 toc01 25 SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE SUPPLY CURRENT vs. TEMPERATURE MAX3293-95 toc03 MAX3295 SUPPLY CURRENT vs. DATA RATE OUTPUT CURRENT (20mA/div) MAX3293/MAX3294/MAX3295 20Mbps, +3.3V, SOT23 RS-485/ RS-422 Transmitters RDIFF = 54Ω CL = 50pF 30 tPHL 20 tPLH 10 0mA -7V 6 5V 2V/div OUTPUT HIGH VOLTAGE 0 0 -40 -10 20 50 TEMPERATURE (°C) 80 110 -40 -10 20 50 TEMPERATURE (°C) _______________________________________________________________________________________ 80 110 20Mbps, +3.3V, SOT23 RS-485/ RS-422 Transmitters DRIVER PROPAGATION DELAY UNLOADED DRIVER OUTPUT WAVEFORM (fIN = 16Mbps) ENABLE RESPONSE TIME MAX3293-95 toc10 MAX3293-95 toc12 MAX3293-95 toc11 DI DE 0V 0V Y, Z Y-Z 0V Y, Z 0V 0V 20ns/div 20ns/div 40ns/div Y, Z: 1V/div DI: 2V/div Y, Z: 1V/div Y, Z, DE: 2V/div LOADED DRIVER OUTPUT WAVEFORM (fIN = 16Mbps) EYE DIAGRAM (fIN = 20Mbps) MAX3293-95 toc13 MAX3293-95 toc14 Y, Z Y, Z 0V 0V 20ns/div Y, Z: 500mV/div 10ns/div Y, Z: 500mV/div Pin Description PIN NAME FUNCTION 1 DI 2 VCC Positive Supply. VCC = +3.3V ±5%. Bypass VCC to GND with a 0.1µF capacitor. 3 DE Driver Output Enable. Force DE high to enable driver. Pull DE low to disable the driver. Hot-swap input, see the Hot-Swap Capability section. 4 Z 5 GND 6 Y Driver Input. A logic low on DI forces the noninverting output (Y) low and the inverting output (Z) high. A logic high on DI forces the noninverting output (Y) high and the inverting output (Z) low. Inverting RS-485/RS-422 Output Ground Noninverting RS-485/RS-422 Output _______________________________________________________________________________________ 7 MAX3293/MAX3294/MAX3295 Typical Operating Characteristics (continued) (VCC = +3.3V, TA = +25°C, unless otherwise noted.) MAX3293/MAX3294/MAX3295 20Mbps, +3.3V, SOT23 RS-485/ RS-422 Transmitters Detailed Description The MAX3293/MAX3294/MAX3295 are low-power transmitters for RS-485/RS-422 communication. The MAX3295 operates at data rates up to 20Mbps, the MAX3294 up to 2.5Mbps (slew-rate limited), and the MAX3293 up to 250kbps (slew-rate limited). These devices are enabled using an active-high driver enable (DE) input. When disabled, outputs enter a high-impedance state, and the supply current reduces to 1µA. The MAX3293/MAX3294/MAX3295 have a hot-swap input structure that prevents disturbance on the differential signal lines when a circuit board is plugged into a “hot” backplane (see the Hot-Swap Capability section). Drivers are also short-circuit current limited and are protected against excessive power dissipation by thermal-shutdown circuitry. cause coupling of VCC or GND to DE. These factors could improperly enable the driver. The MAX3293/MAX3294/MAX3295 eliminate all above issues with hot-swap circuitry. When VCC rises, an internal pulldown circuit holds DE low for approximately 10µs. After the initial power-up sequence, the pulldown circuit becomes transparent, resetting the hot-swap tolerable input. VCC 10µs TIMER Driver TIMER The driver accepts a single-ended, logic-level input (DI) and translates it to a differential RS-485/RS-422 level output (Y and Z). Driving DE high enables the driver, while pulling DE low places the driver outputs (Y and Z) into a high-impedance state (see Table 1). Low-Power Shutdown Force DE low to disable the MAX3293/MAX3294/ MAX3295. In shutdown mode, the device consumes a maximum of 10µA of supply current. 5.6kΩ 2mA 100µA Hot-Swap Capability Hot-Swap Input When circuit boards are inserted into a “hot” or powered backplane, disturbances to the enable can lead to data errors. Upon initial circuit board insertion, the processor undergoes its power-up sequence. During this period, the output drivers are high impedance and are unable to drive the DE input of the MAX3293/ MAX3294/MAX3295 to a defined logic level. Leakage currents up to 10µA from the high-impedance output could cause DE to drift to an incorrect logic state. Additionally, parasitic circuit board capacitance could DE (HOT SWAP) EN M1 M2 Figure 6. Simplified Structure of the Driver Enable Input (DE) DIFFERENTIAL POWER-UP GLITCH (0.1V/µs) 2V/div VCC 0V Table 1. MAX3293/MAX3294/ MAX3295 (RS-485/RS-422) Transmitting Function Table INPUTS DE 0 1 1 X = Don’t care. 8 DI X 0 1 OUTPUTS Y Z Shutdown Shutdown 0 1 1 0 Y 10mV/div AC-COUPLED Z 10mV/div AC-COUPLED 20mV/div Y-Z 4µs/div Figure 7. Differential Power-Up Glitch (0.1V/µs) _______________________________________________________________________________________ 20Mbps, +3.3V, SOT23 RS-485/ RS-422 Transmitters DIFFERENTIAL POWER-UP GLITCH (1V/µs) 2V/div VCC off. When M1 turns off, DE reverts to a standard, highimpedance CMOS input. Whenever VCC drops below 1V, the hot-swap input is reset. Hot-Swap Line Transient During a hot-swap event when the driver is connected to the line and is powered up, the driver must not cause the differential signal to drop below 200mV. Figures 7, 8, and 9 show the results of the MAX3295 during power-up for three different V CC ramp rates (0.1V/µs, 1V/µs, and 10V/µs). The photos show the VCC ramp, the singleended signal on each side of the 100Ω termination, as well as the differential signal across the termination. ESD Protection Human Body Model Figure 10 shows the Human Body Model, and Figure 11 shows the current waveform it generates when discharged into low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which is then discharged into the device through a 1.5kΩ resistor. 0V 100mV/div AC-COUPLED Y RC 1MΩ 100mV/div AC-COUPLED Z RD 1.5kΩ DISCHARGE RESISTANCE CHARGE-CURRENTLIMIT RESISTOR 200mV/div Y-Z 1µs/div HIGHVOLTAGE DC SOURCE Cs 100pF DEVICE UNDER TEST STORAGE CAPACITOR Figure 8. Differential Power-Up Glitch (1V/µs) Figure 10. Human Body ESD Test DIFFERENTIAL POWER-UP GLITCH (10V/µs) 2V/div VCC 0V Y 50mV/div AC-COUPLED Z 50mV/div AC-COUPLED Y-Z Ir IP 100% 90% PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) AMPERES 36.8% 10% 0V 0V TIME 100mV/div tRL 200ns/div Figure 9. Differential Power-Up Glitch (10V/µs) tDL CURRENT WAVEFORM Figure 11. Current Waveform _______________________________________________________________________________________ 9 MAX3293/MAX3294/MAX3295 Hot-Swap Input Circuitry The MAX3293/MAX3294/MAX3295 enable input features hot-swap capability. At the input, there are two NMOS devices, M1 and M2 (Figure 6). When V CC ramps from zero, an internal 10µs timer turns on M2 and sets the SR latch, which also turns on M1. Transistors M2, a 2mA current sink, and M1, a 100µA current sink, pull DE to GND through a 5.6kΩ resistor. M2 is designed to pull DE to the disabled state against an external parasitic capacitance up to 100pF that may drive DE high. After 10µs, the timer deactivates M2 while M1 remains on, holding DE low against threestate leakages that can drive DE high. M1 remains on until an external source overcomes the required input current. At this time, the SR latch resets and M1 turns MAX3293/MAX3294/MAX3295 20Mbps, +3.3V, SOT23 RS-485/ RS-422 Transmitters Reduced EMI and Reflections (MAX3293/MAX3294) The MAX3293/MAX3294 are slew-rate limited, minimizing EMI and reducing reflections caused by improperly terminated cables. Figure 12 shows Fourier analysis of the MAX3295 transmitting a 125kHz signal. High-frequency harmonics with large amplitudes are evident. Figure 13 shows the same information, but for the slewrate-limited MAX3293, transmitting the same signal. The high-frequency harmonics have much lower amplitudes, and the potential for EMI is significantly reduced. To minimize reflections, the line should be terminated at both ends in its characteristic impedance, and stub lengths off the main line should be kept as short as possible. The slew-rate-limited MAX3293 and MAX3294 are more tolerant of imperfect termination. Chip Information TRANSISTOR COUNT: 263 PROCESS: BiCMOS DRIVER OUTPUT WAVEFORM AND FFT PLOT OF MAX3295 DRIVER OUTPUT WAVEFORM AND FFT PLOT OF MAX3293 10dB/div 10dB/div Figure 12. Driver Output Waveform and FFT Plot of MAX3295 Transmitting a 125kHz Signal 10 Driver Output Protection Two mechanisms prevent excessive output current and power dissipation caused by faults or by bus contention. The first, a foldback current limit on the output stage, provides immediate protection against short circuits over the whole common-mode voltage range (see the Typical Operating Characteristics). The second, a thermal-shutdown circuit, forces the driver outputs into a high-impedance state if the die temperature exceeds +160°C. Figure 13. Driver Output Waveform and FFT Plot of MAX3293 Transmitting a 125kHz Signal ______________________________________________________________________________________ 20Mbps, +3.3V, SOT23 RS-485/ RS-422 Transmitters 6LSOT.EPS PACKAGE OUTLINE, SOT-23, 6L 21-0058 F 1 1 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11 © 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. MAX3293/MAX3294/MAX3295 Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.)