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1、For free samples Rev 0; 9/96 *Contact factory for availability. 80 50 2 SUPPLY CURRENT ? vs. INPUT VOLTAGE MAX6520 TOC-01 INPUT VOLTAGE (V) SUPPLY CURRENT (A) 8 60 46 70 10395711 1.20010 1.19990 248 OUTPUT VOLTAGE? vs. INPUT VOLTAGE 1.19995 MAX6520-02 INPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 610359711 1
2、.20005 1.20000 75 50 -50 SUPPLY CURRENT ? vs. TEMPERATURE MAX6520 TOC-02 TEMPERATURE (C) SUPPLY CURRENT (A) 100 60 55 65 050 70 -252575 VIN = 9V VIN = 5V VIN = 3V _Typical Operating Characteristics (VIN = 3V, ILOAD = 0mA, TA = +25C, unless otherwise noted.) MAX6520 50ppm/C, SOT23, 3-Terminal, 1.2V V
3、oltage Reference 2_ ABSOLUTE MAXIMUM RATINGS DC ELECTRICAL CHARACTERISTICS (VIN= 2.4V, ILOAD= 0mA, TA= +25C, unless otherwise noted.) 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
4、 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. Supply Voltage (VIN) -0.3V to +12V VOUT-0.3V to (VIN+ 0.3V) Output Shor
5、t-Circuit Duration Continuous to Either Supply Continuous Power Dissipation (TA= +70C) SOT23 (derate 4mW/C above +70C).320mW Operating Temperature Range .-40C to +85C Storage Temperature Range.-65C to +160C Lead Temperature (soldering, 10sec).+300C en PARAMETERSYMBOLMINTYPMAXUNITS 10 400 1.1881.2001
6、.212V 230Line RegulationVOUT/VINV/V 4.3 Short-Circuit Output CurrentISC 400 mA CONDITIONS VIN= 2.4V to 11V, TA= TMINto TMAX(Note 1) 0.1Hz to 10Hz 10Hz to 10kHz VOUTshorted to GND VOUTshorted to VIN IQ 5058 Quiescent Supply Current 70 A TA= +25C TA= TMINto TMAX(Note 1) 1.55 Change in Supply Current v
7、s. Input Voltage IQ/VINA/VVIN= 2.4V to 11V TA= +25C A Note 1: Production testing done at TA= +25C, over temperature limits guaranteed by parametric correlation data. Output Voltage NoiseVp-p Load RegulationVOUT/IOUTILOAD= -50A to 400A (Note 1)0.11V/A Output VoltageVOUT 1.1761.224VTA= TMINto TMAX MAX
8、6520EUR Output Voltage Temperature Coefficient TCVOUT2550ppm/CMAX6520EUR, TA= TMINto TMAX MAX6520 50ppm/C, SOT23, 3-Terminal, 1.2V Voltage Reference _3 0 -50 LOAD REGULATION ? vs. TEMPERATURE MAX6520 TOC-03 TEMPERATURE (C) LOAD REGULATION (V/A) 100 0.16 0.08 0.24 050 0.32 -252575 120 100 40 0.00010.
9、0010.1.01.10 POWER-SUPPLY REJECTION RATIO ? vs. FREQUENCY 60 80 MAX6520 TOC-06 FREQUENCY (kHz) PSRR (dB) 0.01 1.2001 1.2000 1.1997 1101000 OUTPUT VOLTAGE ? vs. SOURCE CURRENT 1.1998 1.1999 MAX6520 TOC-05 SOURCE CURRENT (A) OUTPUT VOLTAGE (V) 100 _Typical Operating Characteristics (continued) (VIN =
10、3V, ILOAD = 0mA, TA = +25C, unless otherwise noted.) 0.1Hz TO 100Hz NOISE 50V/div? ? 1s/div A = OUTPUT CURRENT, 50A/div, ILOAD = 0A TO -50A? B = OUTPUT VOLTAGE, 100mV/div LOAD-TRANSIENT RESPONSE B A 10s/div A = OUTPUT CURRENT, 500A/div, ILOAD = 0A TO 500A? B = OUTPUT VOLTAGE, 100mV/div LOAD-TRANSIEN
11、T RESPONSE B A 10s/div A = INPUT VOLTAGE, 100mV/div, VIN = 3V 50mV? B = OUTPUT VOLTAGE, 10mV/div LINE-TRANSIENT RESPONSE B A OUT IN 5s/div MAX6520 50ppm/C, SOT23, 3-Terminal, 1.2V Voltage Reference 4_ _Applications Information Input Bypassing For the best line-transient performance, decouple the inp
12、ut with a 0.1F ceramic capacitor as shown in the Typical Operating Circuit. Locate the capacitor as close to the device pin as possible. Where transient performance is less important, no capacitor is neces- sary. Output Bypass The MAX6520 performs well without an output decou- pling capacitor. If yo
13、ur application requires an output charge reservoir (e.g., to decouple the reference from the input of a DAC), then make sure that the total output capacitive load does not exceed 10nF. DAC? LATCH A DAC A DAC? LATCH B DAC B DAC? LATCH C LATCH DAC C SCLK OUTA OUTB OUTC LOUT DIN +3V 0.1F VIN VOUT CSREF
14、AB REFC RESET VDDVSS GND 16-BIT SHIFT REGISTER CONTROL (8)DATA (8) MAX512? MAX513 MAX6520 1 2 1 2 3 4567 8 9 10 1112 14 3 0.01F Figure 1. 3V, Triple, 8-Bit Serial DAC Figure 2. Low-Power 1.2V Reference +3V -3V VIN VOUT MAX6520 2 1 3 3 4 6-1.2V RR +1.2V 2 7 MAX406A _Pin Description GroundGND3 Referen
15、ce OutputVOUT2 Input VoltageVIN1 FUNCTIONNAMEPIN _Chip Information TRANSISTOR COUNT: 39 MAX6520 50ppm/C, SOT23, 3-Terminal, 1.2V Voltage Reference _5 _Tape-and-Reel Information 4.00.1 4.00.1 2.00.05 1.750.1 1.50.1 1.10.1 8.00.2 3.50.05 AYX X LOT SPECIFIC? CODE MARKING? INFORMATION NOTE: DIMENSIONS A
16、RE IN MM.? AND FOLLOW EIA481-1 STANDARD. ICs MAY ALSO BE MARKED WITH FULL PART NAME: MAX6520 ? = MAX6520 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 t
17、he circuitry and specifications without notice at any time. 6_Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 1996 Maxim Integrated Products Printed USAis a registered trademark of Maxim Integrated Products. MAX6520 50ppm/C, SOT23, 3-Terminal, 1.2V Voltage Refere
18、nce _Package Information L DIM? ? A? A1? B? C? D? E? e? H? L? S? MIN? 0.031? 0.001? 0.014? 0.0034? 0.105? 0.047? 0.070? 0.082? 0.004? 0.017? 0 MAX? 0.047? 0.005? 0.022? 0.006? 0.120? 0.055? 0.080? 0.098? 0.012? 0.022? 8 MIN? 0.787? 0.025? 0.356? 0.086? 2.667? 1.194? 1.778? 2.083? 0.102? 0.432? 0 MAX
19、? 1.194? 0.127? 0.559? 0.152? 3.048? 1.397? 2.032? 2.489? 0.305? 0.559? 8 INCHESMILLIMETERS 3-PIN SOT23-3? SMALL-OUTLINE? TRANSISTOR PACKAGE D e A A1 C B S 21-0051B H E General Description The MAX6161MAX6168 are precision, low-dropout, micropower voltage references. These three-terminal devices oper
20、ate with an input voltage range from (VOUT + 200mV) to 12.6V and are available with output volt- age options of 1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V, 4.5V, and 5V. They feature a proprietary curvature-cor- rection circuit and laser-trimmed thin-film resistors that result in a very low temperature c
21、oefficient of 5ppm/C (max) and an initial accuracy of 2mV (max). Specifications apply to the extended temperature range (-40C to +85C). The MAX6161MAX6168 typically draw only 90A of supply current and can source 5mA (4mA for MAX6161) or sink 2mA of load current. Unlike conven- tional shunt-mode (two
22、-terminal) references that waste supply current and require an external resistor, these devices offer a supply current that is virtually indepen- dent of the supply voltage (8A/V variation) and do not require an external resistor. Additionally, the internally compensated devices do not require an ex
23、ternal com- pensation capacitor. Eliminating the external compen- sation capacitor saves valuable board area in space-critical applications. A low-dropout voltage and a supply-independent, ultra-low supply current make these devices ideal for battery-operated, high-perfor- mance, low-voltage systems
24、. The MAX6161MAX6168 are available in 8-pin SO packages. _Applications Analog-to-Digital Converters (ADCs) Portable Battery-Powered Systems Notebook Computers PDAs, GPS, DMMs Cellular Phones Precision +3V/+5V Systems _Features o2mV (max) Initial Accuracy o 5ppm/C (max) Temperature Coefficient o 5mA
25、Source Current at 0.9mV/mA o 2mA Sink Current at 2.5mV/mA o Stable with 1F Capacitive Loads o No External Capacitor Required o 90A (typ) Quiescent Supply Current o 200mV (max) Dropout at 1mA Load Current o 60V/V Line Regulation o Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V, 4.5V, 5
26、V 19-1650; Rev 2; 2/02 MAX6161MAX6168 Precision, Micropower, Low-Dropout, High- Output-Current, SO-8 Voltage References _ Maxim Integrated Products1 OUT N.C.GND 1 2 8 7 N.C. N.C.IN N.C. N.C. SO TOP VIEW 3 4 6 5 MAX6161 MAX6168 _Pin Configuration *Insert the code for the desired initial accuracy and
27、temperature coefficient (from the Selector Guide) in the blank to complete the part number. Typical Operating Circuit and Selector Guide appear at end of data sheet. PART* TEMP RANGE PIN- PACKAGE OUTPUT VOLTAGE (V) MAX6161_ESA-40C to +85C8 SO1.250 MAX6162_ESA-40C to +85C8 SO2.048 MAX6163_ESA-40C to
28、+85C8 SO3.000 MAX6164_ESA-40C to +85C8 SO4.096 MAX6165_ESA-40C to +85C8 SO5.000 MAX6166_ESA-40C to +85C8 SO2.500 MAX6167_ESA-40C to +85C8 SO4.500 MAX6168_ESA-40C to +85C8 SO1.800 Ordering Information For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-46
29、42, or visit Maxims website at www.maxim-. MAX6161MAX6168 Precision, Micropower, Low-Dropout, High- Output-Current, SO-8 Voltage References 2_ ABSOLUTE MAXIMUM RATINGS Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings onl
30、y, 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. Voltages Referenced to GND IN -0.3 to
31、 +13.5V OUT-0.3V to (VIN+ 0.3V) Output Short-Circuit Duration to GND or IN (VIN 6V).Continuous Output Short-Circuit Duration to GND or IN (VIN 6V).60s Continuous Power Dissipation (TA= +70C) 8-Pin SO (derate 5.88mW/C above +70C).471mW Operating Temperature Range .-40C to +85C Storage Temperature Ran
32、ge.-65C to +150C Lead Temperature (soldering, 10s).+300C ELECTRICAL CHARACTERISTICSMAX6161 (VOUT= 1.25V) (VIN= +5V, IOUT= 0, TA= TMINto TMAX, unless otherwise specified. Typical values are at TA= +25C.) PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS MAX6161A1.2481.2501.252 Output VoltageVOUTTA = +25C MAX61
33、61B1.2461.2501.254 V MAX6161A410 Output Voltage Temperature Coefficient (Note 1) TCVOUT MAX6161B615 ppm/C Line Regulation VOUT/ VIN 2.5V RS VS(MAX)- VR / 20mA + ILOAD(MIN) Choosing a larger resistance minimizes the total power dissipation in the circuit by reducing the shunt current (PD(TOTAL)= VSIS
34、HUNT). Provide a safety margin to incorporate the worst-case tolerance of the resistor used. Ensure that the resistors power rating is ade- quate, using the following general power equation: PDR= ISHUNT(VS(MAX)- VSHUNT) Output Capacitance The LM4040 does not require an external capacitor for frequen
35、cy stability and is stable for any output capaci- tance. Temperature Performance The LM4040 typically exhibits an output voltage tem- perature coefficient within 15ppm/C. The polarity of the temperature coefficient may be different from one device to another; some may have positive coefficients, and
36、 others may have negative coefficients. Figure 3. Typical Operating Circuit LM4040 ILOAD ISHUNT RS VS VR ISHUNT + ILOAD Pin Description PINNAMEFUNCTION 1+Positive Terminal of the Shunt Reference 2Negative Terminal of the Shunt Reference 3N.C.No connection. Leave this pin unconnected or connected to
37、Pin 2. Chip Information TRANSISTOR COUNT: 60 PROCESS: BiCMOS LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages _11 PART OUTPUT VOLTAGE (V) INITIAL ACCURACY (%) TEMPCO (ppm/C) TEMP. RANGE PIN- PACKAGE TOP MARK LM4040AIM3-2.12.0480.1100-40C to +85C3
38、SOT23-3FZEF LM4040AIX3-2.12.0480.1100-40C to +85C3 SC70-3ABJ LM4040BIM3-2.12.0480.2100-40C to +85C3 SOT23-3FZEG LM4040BIX3-2.12.0480.2100-40C to +85C3 SC70-3ABK LM4040CIM3-2.12.0480.5100-40C to +85C3 SOT23-3FZEH LM4040CIX3-2.12.0480.5100-40C to +85C3 SC70-3ABL LM4040DIM3-2.12.0481.0150-40C to +85C3
39、SOT23-3FZEI LM4040DIX3-2.12.0481.0150-40C to +85C3-SC70-3ABM LM4040AIM3-2.52.5000.1100-40C to +85C3 SOT23-3FZEJ LM4040AIX3-2.52.5000.1100-40C to +85C3 SC70-3ABN LM4040BIM3-2.52.5000.2100-40C to +85C3 SOT23-3FZEK LM4040BIX3-2.52.5000.2100-40C to +85C3 SC70-3ABO LM4040CIM3-2.52.5000.5100-40C to +85C3
40、SOT23-3FZEL LM4040CIX3-2.52.5000.5100-40C to +85C3 SC70-3ABP LM4040DIM3-2.52.5001.0150-40C to +85C3 SOT23-3FZEM LM4040DIX3-2.52.5001.0150-40C to +85C3 SC70-3ABQ LM4040AIM3-3.03.0000.1100-40C to +85C3 SOT23-3FZEN LM4040AIX3-3.03.0000.1100-40C to +85C3 SC70-3ABR LM4040BIM3-3.03.0000.2100-40C to +85C3
41、SOT23-3FZEO LM4040BIX3-3.03.0000.2100-40C to +85C3 SC70-3ABS LM4040CIM3-3.03.0000.5100-40C to +85C3 SOT23-3FZEP LM4040CIX3-3.03.0000.5100-40C to +85C3 SC70-3ABT LM4040DIM3-3.03.0001.0150-40C to +85C3 SOT23-3FZEQ LM4040DIX3-3.03.0001.0150-40C to +85C3 SC70-3ABU LM4040AIM3-4.14.0960.1100-40C to +85C3
42、SOT23-3FZER LM4040AIX3-4.14.0960.1100-40C to +85C3 SC70-3ABV LM4040BIM3-4.14.0960.2100-40C to +85C3 SOT23-3FZES LM4040BIX3-4.14.0960.2100-40C to +85C3 SC70-3ABW LM4040CIM3-4.14.0960.5100-40C to +85C3 SOT23-3FZET LM4040CIX3-4.14.0960.5100-40C to +85C3 SC70-3ABX LM4040DIM3-4.14.0961.0150-40C to +85C3
43、SOT23-3FZEU LM4040DIX3-4.14.0961.0150-40C to +85C3 SC70-3ABY LM4040AIM3-5.05.0000.1100-40C to +85C3 SOT23-3FZEV LM4040AIX3-5.05.0000.1100-40C to +85C3 SC70-3ABZ LM4040BIM3-5.05.0000.2100-40C to +85C3 SOT23-3FZEW LM4040BIX3-5.05.0000.2100-40C to +85C3 SC70-3ACA LM4040CIM3-5.05.0000.5100-40C to +85C3
44、SOT23-3FZEX LM4040CIX3-5.05.0000.5100-40C to +85C3 SC70-3ACB LM4040DIM3-5.05.0001.0150-40C to +85C3 SOT23-3FZEY LM4040DIX3-5.05.0001.0150-40C to +85C3 SC70-3ACC Ordering Information LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages 12_ SOTPO3L.EPS
45、Package Information 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. 13 _Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2000 Maxim Integrated Products Printed USAis a registered trademark of Maxim Integrated Products. Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodie