19-2300; Rev 2; 6/03 Ultra-High-Precision SOT23 Series Voltage Reference Applications Features ♦ Tiny 6-Pin SOT23 Package ♦ Ultra-Low Temperature Drift: 7ppm/°C (max) ♦ ±0.04% Initial Accuracy ♦ Stable with Capacitive Loads ♦ Low 16µVP-P Noise (0.1Hz to 10Hz) (2.5V Output) ♦ 15mA Output Source Current ♦ Low 200mV Dropout Voltage ♦ Low 40µA Quiescent Current ♦ Wide 2.7V to 12.6V Supply Voltage ♦ Excellent Load Regulation: 0.001mV/mA Ordering Information PART TEMP RANGE Precision Regulators MAX6033AAUT_ _-T -40°C to +125°C 6 SOT23-6 A/D and D/A Converters MAX6033BAUT_ _-T -40°C to +125°C 6 SOT23-6 Power Supplies MAX6033CAUT_ _-T -40°C to +125°C 6 SOT23-6 Hard-Disk Drives High-Accuracy Industrial and Process Control PIN-PACKAGE Note: Two-number part suffix indicates output voltage option. SOT23 Package Top Marks appear at end of data sheet. Hand-Held Instruments Selector Guide SUFFIX VOLTAGE OUTPUT 25 2.500V 30 3.000V 41 4.096V 50 5.000V Typical Operating Circuit Pin Configuration SUPPLY INPUT TOP VIEW IN OUTS OUTF REFERENCE OUTPUT I.C.* 1 0.1µF* GND 2 MAX6033 MAX6033 6 OUTS 5 OUTF 4 IN 0.1µF (min) GND I.C.* 3 SOT23 *INPUT CAPACITOR IS OPTIONAL *I.C. = INTERNALLY CONNECTED: DO NOT USE ________________________________________________________________ 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 MAX6033 General Description The MAX6033 ultra-high-precision series voltage reference features a low 7ppm/°C (max) temperature coefficient and a low dropout voltage (200mV, max). Low temperature drift and low noise make the MAX6033 ideal for use with high-resolution ADCs or DACs. This device uses bandgap technology for low-noise performance and excellent accuracy. Laser-trimmed, highstability, thin-film resistors, and postpackage trimming guarantee excellent initial accuracy (±0.04%, max). The MAX6033 consumes only 40µA of supply current and sources up to 15mA. Series mode references save system power and use minimal external components compared to two-terminal shunt references. The MAX6033 is available in the miniature 6-pin SOT23 package and is offered over the automotive temperature range (-40°C to +125°C). MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +13V OUTF, OUTS to GND................................................-0.3V to +6V Continuous Power Dissipation (TA = +70°C) 6-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW Operating Temperature Range .........................-40°C to +125°C Storage Temperature Range .............................-65°C to +150°C Maximum Junction Temperature .....................................+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 = 2.500V (VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage SYMBOL VOUT Output-Voltage Accuracy CONDITIONS TA = +25°C TA = +25°C MAX6033A Output Voltage Temperature Coefficient TCVOUT MAX6033B VIN TYP 2.5000 MAX 2.5010 MAX6033B 2.4950 2.5000 2.5050 V 2.5000 2.5025 MAX6033C 2.4975 MAX6033A -0.04 +0.04 MAX6033B -0.2 +0.2 MAX6033C -0.1 +0.1 TA = -40oC to +85oC 1.5 7 TA = -40oC to +125oC 2.5 10 TA = -40oC to +85oC 3 10 7 15 TA = -40oC to +85oC 6 20 TA = -40oC to +125oC 10 o o TA = -40 C to +125 C MAX6033C Input Voltage Range MIN 2.4990 UNITS MAX6033A 2.7 Inferred from line regulation specification Line Regulation ∆VOUT/ ∆VIN 2.7V ≤ VIN ≤ 12.6V Load Regulation ∆VOUT/ ∆IOUT -100µA ≤ IOUT ≤ 15mA 0.001 TA = +25°C VOUT = 0.1%, IOUT = 1mA Dropout Voltage (Note 2) VDO o TA = -40 C to +85 C VOUT = 0.1%, IOUT = 10mA Quiescent Supply Current 2 IIN 0.02 0.2 0.3 0.4 mV/mA V 0.5 TA = -40oC to +125oC TA = +25oC o o µV/V 0.05 0.1 TA = -40°C to +125°C V 25 50 TA = -40°C to +125°C ppm/°C 40 12.6 3 TA = +25°C % 40 o 60 TA = -40 C to +85 C 75 TA = -40oC to +125oC 85 µA VOUT = 0 90 VOUT = VIN -2 0.1Hz ≤ f ≤ 10Hz 16 µVP-P 10Hz ≤ f ≤ 1kHz 12 µVRMS VOUT settles to ±0.01% of final value 500 µs Temperature Hysteresis (Note 3) 150 ppm Long-Term Stability ∆t = 1000hr 40 ppm Output Short-Circuit Current ISC Output-Voltage Noise en Turn-On Settling Time tON _______________________________________________________________________________________ mA Ultra-High-Precision SOT23 Series Voltage Reference (VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage SYMBOL VOUT CONDITIONS TA = +25oC TA = +25oC Output-Voltage Accuracy MAX6033A Output-Voltage Temperature Coefficient TCVOUT MAX6033B VIN 3.2V ≤ VIN ≤ 12.6V Load Regulation ∆VOUT/ ∆IOUT -100µA ≤ IOUT ≤ 15mA Quiescent Supply Current IIN 3.0012 MAX6033B 2.9940 3.0000 3.0060 3.0000 3.0030 MAX6033C 2.9970 MAX6033A -0.04 +0.04 MAX6033B -0.2 +0.2 MAX6033C -0.1 1.5 7 TA = -40oC to +125oC 2.5 10 TA = -40oC to +85oC 3 10 7 15 TA = -40oC to +85oC 6 20 TA = -40oC to +125oC 10 40 o ∆VOUT = 0.1% 3.2 TA = +25°C UNITS V % +0.1 TA = -40oC to +85oC Inferred from line regulation specification Line Regulation VDO MAX 3.0000 TA = -40 C to +125 C ∆VOUT/ ∆VIN Dropout Voltage (Note 2) TYP 2.9988 o MAX6033C Input Voltage Range MIN MAX6033A ppm/°C 12.6 4 TA = -40°C to +125°C V 30 µV/V 60 TA = +25°C 0.002 TA = -40°C to +125°C 0.06 0.12 IOUT = 1mA 0.02 0.2 IOUT = 10mA 0.2 0.4 40 60 TA = +25°C TA = -40°C to +85°C mV/mA V µA 75 TA = -40°C to +125°C 85 VOUT = 0 90 VOUT = VIN -2 0.1Hz ≤ f ≤ 10Hz 24 µVP-P 10Hz ≤ f ≤ 1kHz 15 µVRMS VOUT settles to ±0.01% of final value 600 µs Temperature Hysteresis (Note 3) 150 ppm Long-Term Stability ∆t = 1000hr 40 ppm Output Short-Circuit Current ISC Output-Voltage Noise en Turn-On Settling Time tON mA ELECTRICAL CHARACTERISTICS—VOUT = 4.096V (VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage SYMBOL VOUT Output-Voltage Accuracy CONDITIONS TA = +25°C TA = +25°C MIN TYP MAX MAX6033A 4.0943 4.0960 4.0977 MAX6033B 4.0878 4.0960 4.1042 4.0960 4.1001 MAX6033C 4.0919 MAX6033A -0.04 +0.04 MAX6033B -0.2 +0.2 MAX6033C -0.1 +0.1 UNITS V % _______________________________________________________________________________________ 3 MAX6033 ELECTRICAL CHARACTERISTICS—VOUT = 3.000V MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference ELECTRICAL CHARACTERISTICS—VOUT = 4.096V (continued) (VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MAX6033A Output-Voltage Temperature Coefficient TCVOUT MAX6033B MAX6033C Input-Voltage Range VIN ∆VOUT/ ∆VIN 4.3V ≤ VIN ≤ 12.6V Load Regulation ∆VOUT/ ∆IOUT -100µA ≤ IOUT ≤ 15mA VDO MIN MAX 1.5 7 TA = -40oC to +125oC 2.5 10 TA = -40oC to +85oC 3 10 TA = -40oC to +125oC 7 15 TA = -40oC to +85oC 6 20 TA = -40oC to +125oC 10 Inferred from line regulation specification Line Regulation Dropout Voltage (Note 2) TYP TA = -40oC to +85oC ∆VOUT = 0.1% 4.3 TA = +25°C TA = -40oC to +125oC Quiescent Supply Current IIN 0.002 TA = -40oC to +125oC ISC Output-Voltage Noise en Turn-On Settling Time tON 30 0.08 0.15 IOUT = 1mA 0.02 0.2 IOUT = 10mA 0.2 0.4 40 60 TA = -40°C to +85°C 75 85 TA = -40oC to +125oC Output Short-Circuit Current 40 60 TA = +25°C ppm/°C 12.6 6 TA = +25°C UNITS VOUT = 0 90 VOUT = VIN -2 V µV/V mV/mA V µA mA 0.1Hz ≤ f ≤ 10Hz 32 µVP-P 10Hz ≤ f ≤ 1kHz 22 µVRMS VOUT settles to ±0.01% of final value 800 µs Temperature Hysteresis (Note 3) 150 ppm Long-Term Stability ∆t = 1000hr 40 ppm ELECTRICAL CHARACTERISTICS—VOUT = 5.000V (VIN = 5.5V, COUT = 0.1µF, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage SYMBOL VOUT Output-Voltage Accuracy CONDITIONS TA = +25°C TA = +25°C MAX6033A Output-Voltage Temperature Coefficient TCVOUT MAX6033B MAX6033C Input Voltage Range 4 VIN MIN TYP MAX MAX6033A 4.9980 5.000 5.0020 MAX6033B 4.9900 5.000 5.0100 MAX6033C 4.9950 5.000 5.0050 MAX6033A -0.04 MAX6033B -0.2 +0.2 MAX6033C -0.1 +0.1 1.5 7 TA = -40oC to +125oC 2.5 10 TA = -40oC to +85oC 3 10 7 15 TA = -40oC to +85oC 6 20 TA = -40oC to +125oC 10 40 o TA = -40 C to +125 C Inferred from line regulation specification V +0.04 TA = -40oC to +85oC o UNITS 5.2 _______________________________________________________________________________________ 12.6 % ppm/°C V Ultra-High-Precision SOT23 Series Voltage Reference (VIN = 5.5V, COUT = 0.1µF, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS Line Regulation ∆VOUT/ ∆VIN 5.2V ≤ VIN ≤ 12.6V Load Regulation ∆VOUT/ ∆IOUT -100µA ≤ IOUT ≤ 15mA Dropout Voltage (Note 2) VDO ∆VOUT = 0.1% Quiescent Supply Current IIN MIN TYP MAX 7 50 TA = +25°C TA = -40oC to +125oC TA = +25°C 0.003 TA = -40oC to +125oC ISC Output-Voltage Noise en Turn-On Settling Time tON 0.1 0.2 IOUT = 1mA 0.02 0.2 IOUT = 10mA 0.2 0.4 40 60 TA = -40°C to +85°C mV/mA V µA 75 o TA = -40 C to +125 C Output Short-Circuit Current µV/V 100 TA = +25°C o UNITS 85 VOUT = 0 90 VOUT = VIN -2 mA 0.1Hz ≤ f ≤ 10Hz 40 µVP-P 10Hz ≤ f ≤ 1kHz 26 µVRMS VOUT settles to ±0.01% of final value 1000 µs Temperature Hysteresis (Note 3) 150 ppm Long-Term Stability ∆t = 1000hr 40 ppm Note 1: MAX6033 is 100% production tested at TA = +25°C and is guaranteed by design for TA = TMIN to TMAX as specified. Note 2: Dropout Voltage is the minimum input voltage at which VOUT changes ≤ 0.1% from VOUT at VIN = 5V (VIN = 5.5V for VOUT = 5V). Note 3: Temperature Hysteresis is defined as the change in +25°C output voltage before and after cycling the device from TMAX to TMIN. Typical Operating Characteristics (VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = +25°C, unless otherwise specified.) (Note 4) OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 5V) 2.5040 MAX6033 toc03 3 TYPICAL UNITS 2.5035 2.5030 OUTPUT VOLTAGE (V) 5.0010 5.0008 5.0006 5.0004 5.0002 5.0000 4.9998 4.9996 4.9994 4.9992 4.9990 4.9988 4.9986 4.9984 4.9982 4.9980 LOAD REGULATION (VOUT = 2.5V) MAX6033 toc02 3 TYPICAL UNITS MAX6033 toc01 2.5010 2.5008 2.5006 2.5004 2.5002 2.5000 2.4998 2.4996 2.4994 2.4992 2.4990 2.4988 2.4986 2.4984 2.4982 2.4980 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 2.5V) TA = +125°C 2.5025 2.5020 2.5015 TA = +85°C 2.5010 TA = -40°C 2.5005 TA = +25°C 2.5000 2.4995 2.4990 -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) -2 0 2 4 6 8 10 12 14 16 18 20 OUTPUT CURRENT (mA) _______________________________________________________________________________________ 5 MAX6033 ELECTRICAL CHARACTERISTICS—VOUT = 5.000V (continued) Typical Operating Characteristics (continued) (VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = +25°C, unless otherwise specified.) (Note 4) 5.003 5.002 TA = +85°C TA = -40°C TA = +25°C 4.999 500 TA = +85°C 400 TA = +125°C 300 TA = +25°C 200 100 4.998 TA = -40°C 0 2 4 6 8 10 12 14 16 18 20 4 OUTPUT CURRENT (mA) -40 -40 -50 -60 200 150 100 120 -50 -60 105 90 75 60 30 15 10 100 1000 SUPPLY CURRENT vs. INPUT VOLTAGE (VOUT = 5V) TA = +125°C TA = +25°C 200 180 0.01 0.1 1 10 100 1000 0 1 2 3 4 5 6 7 8 9 10 11 12 13 FREQUENCY (kHz) INPUT VOLTAGE (V) 0.1Hz TO 10Hz OUTPUT NOISE (VOUT = 2.5V) 0.1Hz TO 10Hz OUTPUT NOISE (VOUT = 5V) MAX6033 toc11 MAX6033 toc12 160 TA = +85°C 140 VOUT 4µV/div 120 100 VOUT 10µV/div TA = +125°C 80 60 40 20 0 TA = -40°C TA = +25°C 0 1 2 3 4 5 6 7 8 9 10 11 12 13 1s/div INPUT VOLTAGE (V) 6 TA = -40°C 0 MAX6033 toc10 220 -100 0.001 TA = +85°C 45 -90 1 10 12 14 16 18 20 8 135 -90 FREQUENCY (kHz) 6 150 -80 0.1 4 SUPPLY CURRENT vs. INPUT VOLTAGE (VOUT = 2.5V) -70 0.01 2 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY (VOUT = 5V) -80 0.001 TA = -40°C OUTPUT CURRENT (mA) -70 -100 TA = +25°C 0 SUPPLY CURRENT (µA) -30 TA = +85°C OUTPUT CURRENT (mA) -20 -30 350 300 250 10 12 14 16 18 20 -10 PSRR (dB) PSRR (dB) -20 8 MAX6033 toc08 -10 6 0 MAX6033 toc07 0 400 0 2 0 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY (VOUT = 2.5V) TA = +125°C 500 450 50 0 -2 MAX6033 toc06 600 DROPOUT VOLTAGE (mV) 5.004 DROPOUT VOLTAGE (mV) OUTPUT VOLTAGE (V) 5.005 600 550 MAX6033 toc05 TA = +125°C 5.000 700 MAX6033 toc04 5.006 5.001 DROPOUT VOLTAGE vs. OUTPUT CURRENT (VOUT = 5V) DROPOUT VOLTAGE vs. OUTPUT CURRENT (VOUT = 2.5V) MAX6033 toc09 LOAD REGULATION (VOUT = 5V) SUPPLY CURRENT (µA) MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference _______________________________________________________________________________________ 1s/div Ultra-High-Precision SOT23 Series Voltage Reference LOAD TRANSIENT (VOUT = 2.5V) LOAD TRANSIENT (VOUT = 2.5V) MAX6033 toc13 MAX6033 toc14 VIN = 5V COUT = 0.1µF VIN = 5V COUT = 0.1µF VOUT 50mV/div AC-COUPLED 2.5V VOUT 50mV/div AC-COUPLED 2.5V 1mA IOUT 1mA/div -100µA 10mA IOUT 10mA/div 0 1ms/div 400µs/div LOAD TRANSIENT (VOUT = 2.5V) LOAD TRANSIENT (VOUT = 2.5V) MAX6033 toc15 VIN = 5V COUT = 10µF MAX6033 toc16 VIN = 5V COUT = 10µF VOUT 20mV/div AC-COUPLED 2.5V VOUT 50mV/div AC-COUPLED 2.5V 1mA 10mA IOUT 1mA/div -100µA IOUT 10mA/div 0 400µs/div 1ms/div LINE TRANSIENT (VOUT = 2.5V) LINE TRANSIENT (VOUT = 5V) MAX6033 toc17 5.5V MAX6033 toc18 COUT = 0.1µF 6.5V COUT = 0.1µF 4.5V VIN 500mV/div AC-COUPLED 5.5V VIN 500mV/div AC-COUPLED 2.5V VOUT 10mV/div AC-COUPLED 5V VOUT 10mV/div AC-COUPLED 400µs/div 1ms/div _______________________________________________________________________________________ 7 MAX6033 Typical Operating Characteristics (continued) (VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = +25°C, unless otherwise specified.) (Note 4) Typical Operating Characteristics (continued) (VIN = 5V, COUT = 0.1µF, IOUT = 0, TA = +25°C, unless otherwise specified.) (Note 4) TURN-ON TRANSIENT (VOUT = 2.5V) TURN-ON TRANSIENT (VOUT = 5V) MAX6033 toc19 5V MAX6033 toc21 MAX6033 toc20 5.5V VIN 2V/div VIN 2V/div 0 5V VIN 2V/div 0 0 VOUT 1V/div 2.5V 100µs/div COUT = 10µF 2ms/div 400µs/div TURN-ON TRANSIENT (VOUT = 5V) 2.50040 5.5V 2.50035 VIN 2V/div 0 COUT = 10µF 5.0009 5.0008 5.0006 2.50020 5.0005 2.50015 5 TYPICAL UNITS 5.0007 2.50025 VOUT (V) VOUT 2V/div 5 TYPICAL UNITS 2.50030 0 5V LONG-TERM STABILITY vs. TIME (VOUT = 5V) LONG-TERM STABILITY vs. TIME (VOUT = 2.5V) MAX6033 toc22 5.0004 2.50010 5.0003 2.50005 5.0002 2.50000 5.0001 2.49995 5.0000 4.9999 2.49990 2ms/div VOUT 1V/div 2.5V 0 COUT = 0.1µF 0 COUT = 0.1µF MAX6033 toc23 0 VOUT 2V/div 5V 0 100 200 300 400 500 600 700 800 900 1000 TIME (HOURS) 0 100 200 300 400 500 600 700 800 900 1000 TIME (HOURS) Note 4: Many of the MAX6033 Typical Operating Characteristics are similar. The extremes of these characteristics are found in the MAX6033 (2.5V output) and the MAX6033 (5V output). The Typical Operating Characteristics of the remainder of the MAX6033 family typically lie between these two extremes and can be estimated based on their output voltages. 8 MAX6033 toc24 TURN-ON TRANSIENT (VOUT = 2.5V) VOUT (V) MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference _______________________________________________________________________________________ Ultra-High-Precision SOT23 Series Voltage Reference PIN NAME 1, 3 I.C. 2 GND 4 IN FUNCTION IN Internally Connected. Do not connect externally. MAX6033 Pin Description ISOURCE MAX6033 OUTF Ground Positive Power-Supply Input 5 OUTF Voltage Reference Force Output. Short OUTF to OUTS as close to the device as possible. Bypass OUTF with 0.1µF (min) capacitor to GND. 6 OUTS Voltage Reference Sense OUTS GND Figure 1. Precision Current Source Applications Information 3V SUPPLY Bypassing/Load 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 MAX6033 family requires a minimum output capacitance of 0.1µF for stability and is stable with capacitive loads (including the bypass capacitance) of 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. VDD IN MAX6033 OUT GND REF MAX5143 DAC OUT ANALOG OUTPUT GND Figure 2. 14-Bit High-Resolution DAC and Positive Reference from a Single 3V Supply Supply Current The quiescent supply current of the MAX6033 series reference is typically 40µA and is virtually independent of the supply voltage. In the MAX6033 family, the load current is drawn from the input only when required, so supply current is not wasted and efficiency is maximized at all input voltages. This improved efficiency reduces power dissipation and extends battery life. When the supply voltage is below the minimum-specified input voltage (as during turn-on), the devices can draw up to 150µA beyond the nominal supply current. The input voltage source must be capable of providing this current to ensure reliable turn-on. Output-Voltage Hysteresis Output voltage 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 temperature hysteresis value is 150ppm. Turn-On Time These devices typically turn on and settle to within 0.01% of their final value in >1µs. The turn-on time can increase up to 2ms with the device operating at the minimum dropout voltage and the maximum load. Precision Current Source Figure 1 shows a typical circuit providing a precision current source. The OUTF output provides the bias current for the bipolar transistor. OUTS senses the voltage across the resistor and adjusts the current sourced by OUTF accordingly. High-Resolution DAC and Reference from Single Supply Figure 2 shows a typical circuit providing both the power supply and reference for a high-resolution DAC. A MAX6033 with 2.5V output provides the reference voltage for the DAC. _______________________________________________________________________________________ 9 MAX6033 Ultra-High-Precision SOT23 Series Voltage Reference Chip Information SOT23 Package Top Marks PART 10 TOP MARK MAX6033AAUT25 ABDF MAX6033AAUT30 ABDG MAX6033AAUT41 ABDH MAX6033AAUT50 ABDI MAX6033BAUT25 AAXL MAX6033BAUT30 AAXM MAX6033BAUT41 AAXN MAX6033BAUT50 AAXO MAX6033CAUT25 AAXH MAX6033CAUT30 AAXI MAX6033CAUT41 AAXJ MAX6033CAUT50 AAXK TRANSISTOR COUNT: 656 PROCESS: BiCMOS ______________________________________________________________________________________ Ultra-High-Precision SOT23 Series Voltage Reference 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 © 2003 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. MAX6033 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.)