19-3036; Rev 1; 5/04 Precision High-Voltage Reference in SOT23 The MAX6043 precision voltage reference provides accurate preset +2.5V, +3.3V, +4.096V, +5.0V, and +10V reference voltages from up to +40V input voltages. The MAX6043 features a proprietary temperature coefficient curvature-correction circuit and lasertrimmed thin-film resistors that result in a very low temperature coefficient of 15ppm/°C (max) and excellent initial accuracy of 0.05% (max). Low temperature drift and low noise make the MAX6043 ideal for use with high-resolution A/D or D/A converters. The MAX6043 draws 320µA of supply current and sources 10mA or sinks 0.6mA of load current. The MAX6043 uses bandgap technology for low-noise performance and excellent accuracy. The MAX6043 does not require an output bypass capacitor for stability, and is stable with capacitive loads up to 100µF. Eliminating the output bypass capacitor saves valuable board area in space-critical applications. The supply-independent, low supply current makes the MAX6043 ideal for battery-operated, high-performance systems. The MAX6043 is available in a 6-pin SOT23 package and operates over the automotive (-40°C to +125°C) temperature range. Features ♦ +2.5V, +3.3V, +4.096V, +5.0V, or +10V Output Voltages ♦ Excellent Temperature Stability: 15ppm/°C (max) ♦ Tight Initial Accuracy: 0.05% (max) ♦ Tiny SOT23 Package ♦ Wide +4.5V to +40V Supply Voltage Range ♦ Low Noise: 4µVP-P (typ at 2.5V Output) ♦ Short-Circuit Protected ♦ Wide Operating Temperature Range -40°C to +125°C ♦ Stable with Capacitive Loads from 0 to 100µF ♦ No External Capacitors Required for Stability Ordering Information PART TEMP RANGE PINPACKAGE TOP MARK MAX6043AAUT25-T -40°C to +125°C 6 SOT23-6 ABRZ MAX6043BAUT25-T -40°C to +125°C 6 SOT23-6 ABDQ MAX6043CAUT25-T -40°C to +125°C 6 SOT23-6 ABDR Ordering Information continued at end of data sheet. Applications Typical Operating Circuit appears at end of data sheet. Analog-to-Digital Converters Selector Guide Digital-to-Analog Converters PART OUTPUT VOLTAGE (V) TEMPCO (ppm/oC) -40oC to +125oC INITIAL ACCURACY (%) MAX6043AAUT25 2.5 15 0.06 MAX6043BAUT25 2.5 20 0.1 MAX6043CAUT25 2.5 65 0.5 MAX6043AAUT33 3.3 15 0.06 MAX6043BAUT33 3.3 20 0.1 MAX6043CAUT33 3.3 65 0.5 Digital Voltmeters Voltage Regulators Threshold Detectors Pin Configuration TOP VIEW I.C.* 1 GND 2 6 MAX6043 I.C.* 3 SOT23-6 *INTERNALLY CONNECTED. DO NOT CONNECT. OUTS 5 OUTF 4 IN MAX6043AAUT41 4.096 15 0.06 MAX6043BAUT41 4.096 20 0.1 MAX6043CAUT41 4.096 65 0.5 MAX6043AAUT50 5.0 15 0.06 MAX6043BAUT50 5.0 20 0.1 MAX6043CAUT50 5.0 65 0.5 MAX6043AAUT10 10.0 15 0.05 MAX6043BAUT10 10.0 20 0.1 MAX6043CAUT10 10.0 65 0.5 ________________________________________________________________ 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 MAX6043 General Description MAX6043 Precision High-Voltage Reference in SOT23 ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +42V OUTF, OUTS to GND ...................................-0.3V to (VIN + 0.3V) Continuous Power Dissipation (TA = +70°C) 6-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW OUT_ Short-Circuit Duration .....................................................5s Operating Temperature Range .........................-40°C to +125°C Storage Temperature Range .............................-65°C to +150°C Junction 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. ELECTRICAL CHARACTERISTICS—VOUT = +2.5V (VIN = +5V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.06%) 2.4985 2.5000 2.5015 MAX6043B (0.1%) 2.4975 2.5000 2.5025 MAX6043C (0.5%) 2.4876 2.5000 2.5125 3 15 MAX6043B_25 5 25 MAX6043C_25 10 65 UNITS OUTPUT Output Voltage IOUT = 0, TA = +25°C MAX6043A_25 Output-Voltage Temperature Coefficient (Note 2) Line Regulation (Note 4) Load Regulation (Note 4) TA = -40°C to +125°C 4.5V < VIN < 40V Sourcing, 0 < IOUT < 10mA Sinking, -0.6mA < IOUT < 0mA OUT Short-Circuit Current TA = +25°C TA = -40°C to +125°C TA = +25°C 1 6 1.5 10 8 70 70 900 TA = -40°C to +125°C 70 TA = +25°C TA = -40°C to +125°C V ppm/°C ppm/V ppm/mA 900 Output shorted to GND 60 Output shorted to IN -2 mA Thermal Hysteresis (Note 3) 150 ppm Long-Term Stability ∆t = 1000hr 150 ppm 4 µVP-P 7 µVRMS 150 µs DYNAMIC CHARACTERISTICS Output Noise Voltage Turn-On Settling Time 0.1Hz to 10Hz 10Hz to 1kHz To VOUT = 0.05% of final value, COUT = 50pF INPUT Supply Voltage Range Quiescent Supply Current 2 Inferred from line regulation test IOUT = 0 4.5 40.0 TA = +25°C 320 490 TA = -40°C to +125°C 370 650 _______________________________________________________________________________________ V µA Precision High-Voltage Reference in SOT23 MAX6043 ELECTRICAL CHARACTERISTICS—VOUT = +3.3V (VIN = +10V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.06%) 3.2980 3.3000 3.3020 MAX6043B (0.1%) 3.2967 3.3000 3.3033 MAX6043C (0.5%) 3.2836 3.3000 3.3165 MAX6043A_33 3 15 MAX6043B_33 5 25 MAX6043C_33 10 65 TA = +25°C 1 6 TA = -40°C to +125°C 1.5 10 Sourcing, 0 ≤ IOUT ≤ 10mA TA = +25°C 23 Sinking, -0.6mA ≤ IOUT ≤ 0mA TA = +25°C UNITS OUTPUT Output Voltage IOUT = 0, TA = +25°C Output-Voltage Temperature Coefficient (Note 2) Line Regulation (Note 4) Load Regulation (Note 4) OUT Short-Circuit Current TA = -40°C to +125°C 5.3V ≤ VIN ≤ 40V TA = -40°C to +125°C TA = -40°C to +125°C ppm/°C ppm/V 70 70 100 V 900 ppm/mA 900 OUT shorted to GND 60 OUT shorted to IN -2 mA Thermal Hysteresis (Note 3) 150 ppm Long-Term Stability ∆t = 1000hr 150 ppm DYNAMIC CHARACTERISTICS Output Noise Voltage Turn-On Settling Time 0.1Hz to 10Hz 5.3 µVP-P 10Hz to 1kHz 9.5 µVRMS To VOUT = 0.05% of final value, COUT = 50pF 180 µs INPUT Supply Voltage Range Inferred from line regulation test Quiescent Supply Current IOUT = 0 5.3 40.0 TA = +25°C 320 490 TA = -40°C to +125°C 380 650 V µA _______________________________________________________________________________________ 3 MAX6043 Precision High-Voltage Reference in SOT23 ELECTRICAL CHARACTERISTICS—VOUT = +4.096V (VIN = +10V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.06%) 4.0935 4.0960 4.0985 MAX6043B (0.1%) 4.0919 4.0960 4.1001 MAX6043C (0.5%) 4.0755 4.0960 4.1165 MAX6043A_41 3 15 MAX6043B_41 5 25 MAX6043C_41 10 65 TA = +25°C 1 6 TA = -40°C to +125°C 1.5 10 Sourcing, 0 ≤ IOUT ≤ 10mA TA = +25°C 19 Sinking, -0.6mA ≤ IOUT ≤ 0mA TA = +25°C UNITS OUTPUT Output Voltage Output-Voltage Temperature Coefficient (Note 2) Line Regulation (Note 4) Load Regulation (Note 4) OUT Short-Circuit Current IOUT = 0, TA = +25°C TA = -40°C to +125°C 6.1V ≤ VIN ≤ 40V TA = -40°C to +125°C TA = -40°C to +125°C ppm/°C ppm/V 70 70 100 V 900 ppm/mA 900 OUT shorted to GND 60 OUT shorted to IN -2 mA Thermal Hysteresis (Note 3) 150 ppm Long-Term Stability ∆t = 1000hr 150 ppm DYNAMIC CHARACTERISTICS Output Noise Voltage Turn-On Settling Time 0.1Hz to 10Hz 6.6 µVP-P 10Hz to 1kHz 12 µVRMS To VOUT = 0.05% of final value, COUT = 50pF 200 µs INPUT Supply Voltage Range Quiescent Supply Current 4 Inferred from line regulation test IOUT = 0 6.1 40.0 TA = +25°C 320 490 TA = -40°C to +125°C 380 650 _______________________________________________________________________________________ V µA Precision High-Voltage Reference in SOT23 MAX6043 ELECTRICAL CHARACTERISTICS—VOUT = +5.0V (VIN = +15V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.06%) 4.9970 5.0000 5.0030 MAX6043B (0.1%) 4.9950 5.0000 5.0050 MAX6043C (0.5%) 4.9751 5.0000 5.0250 MAX6043A_50 3 15 MAX6043B_50 5 25 MAX6043C_50 10 65 TA = +25°C 1 6 TA = -40°C to +125°C 1.5 10 Sourcing, 0 ≤ IOUT ≤ 10mA TA = +25°C 32 Sinking, -0.6mA ≤ IOUT ≤ 0mA TA = +25°C UNITS OUTPUT Output Voltage IOUT = 0, TA = +25°C Output-Voltage Temperature Coefficient (Note 2) Line Regulation (Note 4) Load Regulation (Note 4) OUT Short-Circuit Current TA = -40°C to +125°C 7V ≤ VIN ≤ 40V TA = -40°C to +125°C TA = -40°C to +125°C ppm/°C ppm/V 70 70 130 V 900 ppm/mA 900 OUT shorted to GND 60 OUT shorted to IN -2 mA Thermal Hysteresis (Note 3) 150 ppm Long-Term Stability ∆t = 1000hr 150 ppm DYNAMIC CHARACTERISTICS Output Noise Voltage Turn-On Settling Time 0.1Hz to 10Hz 9.5 µVP-P 10Hz to 1kHz 15 µVRMS To VOUT = 0.05% of final value, COUT = 50pF 230 µs INPUT Supply Voltage Range Inferred from line regulation test Quiescent Supply Current IOUT = 0 7.0 40.0 TA = +25°C 320 490 TA = -40°C to +125°C 380 650 V µA _______________________________________________________________________________________ 5 MAX6043 Precision High-Voltage Reference in SOT23 ELECTRICAL CHARACTERISTICS—VOUT = +10.0V (VIN = +15V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.05%) 9.9950 10.0000 10.0050 MAX6043B (0.1%) 9.9900 10.0000 10.0100 MAX6043C (0.5%) 9.9500 10.0000 10.0500 MAX6043A_10 3 15 MAX6043B_10 5 25 MAX6043C_10 10 65 TA = +25°C 1 6 TA = -40°C to +125°C 1.5 10 Sourcing, 0 ≤ IOUT ≤ 10mA TA = +25°C 16 Sinking, -0.6mA ≤ IOUT ≤ 0mA TA = +25°C UNITS OUTPUT Output Voltage Output-Voltage Temperature Coefficient (Note 2) Line Regulation (Note 4) Load Regulation (Note 4) OUT Short-Circuit Current IOUT = 0, TA = +25°C TA = -40°C to +125°C 12V ≤ VIN ≤ 40V TA = -40°C to +125°C TA = -40°C to +125°C ppm/°C ppm/V 70 70 170 V 900 ppm/mA 900 OUT shorted to GND 60 OUT shorted to IN -2 mA Thermal Hysteresis (Note 3) 150 ppm Long-Term Stability ∆t = 1000hr 150 ppm DYNAMIC CHARACTERISTICS Output Noise Voltage Turn-On Settling Time 0.1Hz to 10Hz 19 µVP-P 10Hz to 1kHz 30 µVRMS To VOUT = 0.05% of final value, COUT = 50pF 390 µs INPUT Supply Voltage Range Quiescent Supply Current Note 1: Note 2: Note 3: Note 4: 6 Inferred from line regulation test IOUT = 0 12.0 40.0 TA = +25°C 320 490 TA = -40°C to +125°C 390 650 V µA All devices are 100% production tested at TA = +25°C and guaranteed by design over TA = TMIN to TMAX as specified. Temperature coefficient is defined as ∆VOUT divided by the temperature range. Thermal hysteresis defined as the change in output voltage at TA = +25°C before and after cycling the device from TMAX to TMIN. Line and load regulation do not include the effect of self heating. _______________________________________________________________________________________ Precision High-Voltage Reference in SOT23 OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 10V) OUTPUT VOLTAGE (V) 2.5010 2.5005 2.5000 2.4995 2.4990 2.4985 2.4980 MAX6043 toc03 TA = +25°C 0 TA = -40°C -2 -4 -6 -8 -10 TA = +125°C -12 TA = +85°C -14 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) OUTPUT CURRENT (mA) LOAD REGULATION (SOURCING, VOUT = 2.5V) LOAD REGULATION (SINKING, VOUT = 10V) LOAD REGULATION (SINKING, VOUT = 2.5V) TA = +25°C 20 1.0 TA = +25°C -0.5 10 5 0 20 30 40 50 60 70 -3 -2 -3.0 0 -1 -2.0 -1.5 -1.0 -0.5 0 LINE REGULATION (VOUT = 2.5V) LINE REGULATION (VOUT = 10V) MINIMUM INPUT-OUTPUT DIFFERENTIAL vs. LOAD CURRENT (VOUT = 2.5V) TA = +125°C 0.0250 TA = +25°C TA = -40°C 0.200 0.100 TA = +25°C 0 TA = -40°C TA = +85°C -0.100 -0.0250 16 20 24 28 INPUT VOLTAGE (V) 32 36 40 ∆VOUT / VOUT = 0.1% 2.5 TA = -40°C 2.0 TA = +25°C 1.5 TA = +85°C TA = +125°C 1.0 0.5 0 -0.200 -0.0500 3.0 MINIMUM INPUT-OUTPUT DIFFERENTIAL (V) 0.400 ∆VOUT (mV) TA = +85°C 0 MAX6043 toc08 MAX6043 toc07 0.500 0.300 0.0500 12 -2.5 OUTPUT CURRENT (mA) 0.1000 8 TA = +85°C TA = +125°C -2.0 -4 TA = +125°C 4 -0.5 OUTPUT CURRENT (mA) 0.1500 0.0750 0 OUTPUT CURRENT (mA) 0.1750 0.1250 TA = -40°C 0.5 -1.5 -15 10 70 TA = +125°C -2.0 0 60 TA = +25°C -1.0 TA = +85°C -10 TA = +85°C 50 1.0 -5 TA = +125°C -1.5 40 MAX6043 toc09 -1.0 30 1.5 ∆VOUT (mV) 0 ∆VOUT (mV) TA = -40°C 0.5 20 2.0 TA = -40°C 15 10 0 MAX6043 toc05 25 MAX6043 toc04 1.5 ∆VOUT (mV) 2 -40 -25 -10 5 20 35 50 65 80 95 110 125 2.0 ∆VOUT (mV) 4 MAX6043 toc06 2.5015 THREE TYPICAL UNITS ∆VOUT (mV) THREE TYPICAL UNITS OUTPUT VOLTAGE (V) 10.005 10.004 10.003 10.002 10.001 10.000 9.999 9.998 9.997 9.996 9.995 9.994 9.993 9.992 9.991 9.990 MAX6043 toc01 2.5020 LOAD REGULATION (SOURCING, VOUT = 10V) MAX6043 toc02 OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 2.5V) 12 16 20 24 28 32 INPUT VOLTAGE (V) 36 40 0 20 40 60 80 LOAD CURRENT (mA) _______________________________________________________________________________________ 7 MAX6043 Typical Operating Characteristics (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) POWER-SUPPLY REJECTION RATIO vs. FREQUENCY (VOUT = 2.5V) TA = -40°C -20 1.5 TA = +85°C TA = +125°C 1.0 0.5 0 20 -80 -100 -100 -120 0.1 1 10 100 1000 0.1 1 10 100 1000 FREQUENCY (kHz) FREQUENCY (kHz) OUTPUT IMPEDANCE vs. FREQUENCY SUPPLY CURRENT vs. INPUT VOLTAGE (VOUT = 2.5V) SUPPLY CURRENT vs. INPUT VOLTAGE (VOUT = 10V) 0.1 TA = +85°C 320 280 240 200 160 120 80 TA = -40°C 440 TA = +25°C 1 10 100 1000 TA = +85°C 360 320 280 240 TA = +25°C 200 TA = -40°C 160 120 80 40 40 0 0.01 TA = +125°C 400 SUPPLY CURRENT (µA) SUPPLY CURRENT (µA) 1 TA = +125°C 440 400 360 MAX6043 toc14 MAX6043 toc13 480 MAX6043 toc15 LOAD CURRENT (mA) 10 0.1 -60 -80 60 40 100 0 0 4 8 12 16 20 24 28 32 36 40 0 4 12 16 20 24 28 32 36 40 8 FREQUENCY (kHz) INPUT VOLTAGE (V) INPUT VOLTAGE (V) SUPPLY CURRENT vs. TEMPERATURE (VOUT = 2.5V) SUPPLY CURRENT vs. TEMPERATURE (VOUT = 10V) OUTPUT NOISE-VOLTAGE DENSITY vs. FREQUENCY 380 360 340 320 300 380 360 340 320 300 280 280 260 260 240 240 -40 -25 -10 5 20 35 50 65 80 95 110 125 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) 10,000 MAX6043 toc18 VIN = 15V 400 SUPPLY CURRENT (µA) 400 420 OUTPUT NOISE-VOLTAGE DENSITY (nV/√Hz) 440 MAX6043 toc16 VIN = 5V MAX6043 toc17 OUTPUT IMPEDANCE (Ω) -60 -120 0 8 -40 PSRR (dB) PSRR (dB) TA = +25°C 420 -20 -40 2.0 440 0 MAX6043 toc11 ∆VOUT / VOUT = 0.1% 2.5 0 MAX6043 toc10 MINIMUM INPUT-OUTPUT DIFFERENTIAL (V) 3.0 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY (VOUT = 10V) MAX6043 toc12 MINIMUM INPUT-OUTPUT DIFFERENTIAL vs. LOAD CURRENT (VOUT = 10V) SUPPLY CURRENT (µA) MAX6043 Precision High-Voltage Reference in SOT23 VOUT = 10V 1000 VOUT = 2.5V 100 0.1 1 10 FREQUENCY (Hz) _______________________________________________________________________________________ 100 1000 Precision High-Voltage Reference in SOT23 0.1Hz TO 10Hz OUTPUT NOISE (VOUT = 2.5V) 0.1Hz TO 10Hz OUTPUT NOISE (VOUT = 10V) MAX6043 toc19 MAX6043 toc20 VOUT AC-COUPLED 1µV/div VOUT AC-COUPLED 4µV/div 1s/div LOAD TRANSIENT (VOUT = 2.5V) 1s/div LOAD TRANSIENT (VOUT = 10V) MAX6043 toc21 VIN = 5V COUT = 0µF VOUT 50mV/div AC-COUPLED 2.5V 20mA MAX6043 toc22 VIN = 15V COUT = 0µF VOUT 200mV/div AC-COUPLED 10V 20mA IOUT 10mA/div 0 IOUT 10mA/div 0 100µs/div LOAD TRANSIENT (VOUT = 2.5V) 100µs/div LOAD TRANSIENT (VOUT = 10V) MAX6043 toc23 VIN = 5V COUT = 1µF MAX6043 toc24 VIN = 15V COUT = 1µF VOUT 50mV/div AC-COUPLED 2.5V 20mA VOUT 100mV/div AC-COUPLED 10V 20mA IOUT 10mA/div 0 IOUT 10mA/div 0 100µs/div 100µs/div _______________________________________________________________________________________ 9 MAX6043 Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) MAX6043 Precision High-Voltage Reference in SOT23 Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) LOAD TRANSIENT (VOUT = 2.5V) LOAD TRANSIENT (VOUT = 10V) MAX6043 toc25 VIN = 5V COUT = 0µF VOUT 50mV/div AC-COUPLED 2.5V IOUT 2mA/div 0 -2mA VOUT 100mV/div AC-COUPLED 10V IOUT 2mA/div 0 -2mA 200µs/div LOAD TRANSIENT (VOUT = 2.5V) MAX6043 toc26 VIN = 15V COUT = 0µF 400µs/div LINE TRANSIENT (VOUT = 2.5V) LOAD TRANSIENT (VOUT = 10V) MAX6043 toc28 MAX6043 toc27 VOUT 20mV/div AC-COUPLED 2.5V IOUT 2mA/div 0 5.5V VIN AC-COUPLED 500mV/div 4.5V VOUT 50mV/div AC-COUPLED 10V VOUT AC-COUPLED 10mV/div IOUT 2mA/div 0 -2mA -2mA LINE TRANSIENT (VOUT = 10V) 10µs/div 400µs/div 200µs/div TURN-ON TRANSIENT (VOUT = 2.5V) MAX6043 toc30 TURN-ON TRANSIENT (VOUT = 10V) MAX6043 toc31 COUT = 0µF 15.5V VIN AC-COUPLED 500mV/div 14.5V 5V VIN 2V/div 15V VIN 5V/div 0V 10V VOUT 1V/div 0V 10µs/div MAX6043 toc32 COUT = 0µF 0V VOUT 2.5V AC-COUPLED 10mV/div 10 MAX6043 toc29 VIN = 15V COUT = 1µF VIN = 5V COUT = 1µF VOUT 5V/div 0V 4µs/div 40µs/div ______________________________________________________________________________________ Precision High-Voltage Reference in SOT23 TURN-ON TRANSIENT (VOUT = 10V) TURN-ON TRANSIENT (VOUT = 2.5V) MAX6043 toc33 TURN-OFF TRANSIENT (VOUT = 2.5V) MAX6043 toc34 COUT = 1µF COUT = 1µF MAX6043 toc35 COUT = 0µF 15V 5V VIN 5V/div VIN 2V/div 0V 0V 2.5V 5V VIN 2V/div 0V 2.5V 10V VOUT 5V/div VOUT 1V/div 0V 0V VOUT 1V/div 0V 40µs/div 40µs/div TURN-OFF TRANSIENT (VOUT = 10V) 1µs/div TURN-OFF TRANSIENT (VOUT = 2.5V) MAX6043 toc36 TURN-OFF TRANSIENT MAX6043 toc37 MAX6043 toc38 COUT = 1µF COUT = 0µF COUT = 1µF 15V 15V 5V VIN 2V/div VIN 5V/div 0V 2.5V 0V VIN 5V/div 0V 10V 10V VOUT 1V/div VOUT 5V/div 0V 0V 0V 20ms/div 2µs/div 40ms/div LONG-TERM DRIFT (VOUT = 2.5V) LONG-TERM DRIFT (VOUT = 10V) 125 ∆ OUTPUT VOLTAGE (ppm) 125 100 75 50 25 0 -25 -50 -75 -100 -125 -150 XMAX6043 toc40 150 MAX6043 toc39 150 ∆ OUTPUT VOLTAGE (ppm) VOUT 5V/div 100 75 50 25 0 -25 -50 -75 -100 -125 -150 0 200 400 600 TIME (hr) 800 1000 0 200 400 600 800 1000 TIME (hr) ______________________________________________________________________________________ 11 MAX6043 Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25°C, unless otherwise noted.) Precision High-Voltage Reference in SOT23 MAX6043 Pin Description PIN NAME FUNCTION 1, 3 I.C. 2 GND 4 IN 5 OUTF Voltage-Reference Force Output. Connect OUTF to OUTS as close to the device as possible. OUTF and OUTS do not require a bypass capacitor for stability. 6 OUTS Voltage-Reference Sense Input Internally Connected. Do not connect externally. Ground Positive Power-Supply Input Applications Information Bypassing/Output Capacitance For the best line-transient performance, decouple the input with a 0.1µF ceramic capacitor as shown in the Typical Operating Circuit. Place the capacitor as close to IN as possible. When transient performance is less important, no capacitor is necessary. The MAX6043 does not require an output capacitor for stability and is stable with capacitive loads up to 100µF. In applications where the load or the supply can experience step changes, a larger output capacitor reduces the amount of overshoot (undershoot) and improves the circuit’s transient response. Place output capacitors as close to the device as possible for best performance. Supply Current The MAX6043 consumes 320µA of quiescent supply current. This improved efficiency reduces power dissipation and extends battery life. Thermal Hysteresis Thermal hysteresis is the change in the output voltage at TA = +25°C before and after the device is cycled over its entire operating temperature range. Hysteresis is caused by differential package stress appearing across the bandgap core transistors. The typical thermal hysteresis value is 150ppm. 12 Turn-On Time The MAX6043 typically turns on and settles to within 0.05% of the preset output voltage in 150µs. Short-Circuited Outputs The MAX6043 features a short-circuit-protected output. Internal circuitry limits the output current to 60mA when short-circuiting the output. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error In a data converter application, the reference voltage of the converter must stay within a certain limit to keep the error in the data converter smaller than the resolution limit through the operating temperature range. Figure 1 shows the maximum allowable reference-voltage temperature coefficient to keep the conversion error to less than 1 LSB, as a function of the operating temperature range (TMAX - TMIN) with the converter resolution as a parameter. The graph assumes the reference-voltage temperature coefficient as the only parameter affecting accuracy. In reality, the absolute static accuracy of a data converter is dependent on the combination of many parameters such as integral nonlinearity, differential nonlinearity, offset error, gain error, as well as voltage-reference changes. ______________________________________________________________________________________ Precision High-Voltage Reference in SOT23 MAX6043 10,000 1000 100 TEMPERATURE COEFFICIENT (ppm/°C) 8 BIT 10 10 BIT 12 BIT 1 14 BIT 16 BIT 0.1 18 BIT 0.01 1 10 20 BIT 100 OPERATING TEMPERATURE RANGE (TMAX - TMIN) (°C) Figure 1. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error ______________________________________________________________________________________ 13 MAX6043 Precision High-Voltage Reference in SOT23 Ordering Information (continued) PART TEMP RANGE PINPACKAGE TOP MARK MAX6043AAUT33-T -40°C to +125°C 6 SOT23-6 ABSA MAX6043BAUT33-T -40°C to +125°C 6 SOT23-6 ABDS MAX6043CAUT33-T -40°C to +125°C 6 SOT23-6 ABDT MAX6043AAUT41-T -40°C to +125°C 6 SOT23-6 ABSB MAX6043BAUT41-T -40°C to +125°C 6 SOT23-6 ABDU MAX6043CAUT41-T -40°C to +125°C 6 SOT23-6 ABDV MAX6043AAUT50-T -40°C to +125°C 6 SOT23-6 ABSC MAX6043BAUT50-T -40°C to +125°C 6 SOT23-6 ABDW MAX6043CAUT50-T -40°C to +125°C 6 SOT23-6 ABDX MAX6043AAUT10-T -40°C to +125°C 6 SOT23-6 ABSD MAX6043BAUT10-T -40°C to +125°C 6 SOT23-6 ABDY MAX6043CAUT10-T -40°C to +125°C 6 SOT23-6 ABDZ Typical Operating Circuit INPUT SUPPLY IN OUTF OUTS REFERENCE OUTPUT (SEE ORDERING INFORMATION) MAX6043 0.1µF* GND *INPUT CAPACITOR IS OPTIONAL. Chip Information TRANSISTOR COUNT: 152 PROCESS: BiCMOS 14 ______________________________________________________________________________________ Precision High-Voltage Reference in SOT23 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 ____________________ 15 © 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. MAX6043 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.)