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MAX6034AEXR25+T-MAX6034BEXR25+
Precision, Micropower, Low-Dropout, SC70 Series Voltage Reference
General DescriptionThe MAX6034 family of precision, low-dropout, microp-
ower voltage references are available in the miniature
3-pin SC70 surface-mount package. They feature a
proprietary temperature coefficient curvature-correction
circuit and laser-trimmed, thin-film resistors that result
in a low temperature coefficient of 30ppm/°C (max) and
initial accuracy of ±0.20% (max). These devices are
available over the extended temperature range of -40°C
to +85°C.
The MAX6034 family of series-mode voltage references
typically draw only 90µA of supply current and can
source 1mA and sink 200µA of load current. Unlike
conventional shunt-mode (two terminal) references that
waste supply current and require an external resistor,
devices in the MAX6034 family offer supply current that
is virtually independent of supply voltage (16µA/V, max
variation) and do not require an external resistor. These
internally compensated devices do not require an
external compensation capacitor, but are stable with up
to 1µF of load capacitance. Eliminating the external
compensation capacitor saves valuable board space in
space-critical applications. The low dropout voltage
and supply-independent, ultra-low supply current make
the MAX6034 ideal for battery-powered applications.
ApplicationsHand-Held Equipment
Data-Acquisition Systems
Industrial and Process Control Systems
Battery-Operated Equipment
Hard-Disk Drives
FeaturesUltra-Small, 3-Pin SC70 Package±0.2% (max) Initial Accuracy30ppm/°C (max) Temperature Coefficient90µA Supply Current200mV (max) Dropout Voltage at 1mA Load
CurrentStable with CLOAD= 0 to 1µFNo Output Capacitor Needed
MAX6034
Precision, Micropower, Low-Dropout, SC70
Series Voltage Reference
Ordering Information19-2428; Rev 0; 4/02
PARTTEMP RANGE PI N -
PA C K A G E
TOP
MARKMAX6034AEXR21-T-40°C to +85°C3 SC70-3AJH
MAX6034BEXR21-T-40°C to +85°C3 SC70-3AJM
MAX6034AEXR25-T-40°C to +85°C3 SC70-3AJI
MAX6034BEXR25-T-40°C to +85°C3 SC70-3AJN
MAX6034AEXR30-T-40°C to +85°C3 SC70-3AJJ
MAX6034BEXR30-T-40°C to +85°C3 SC70-3AJO
MAX6034AEXR33-T-40°C to +85°C3 SC70-3AJK
MAX6034BEXR33-T-40°C to +85°C3 SC70-3AJP
MAX6034AEXR41-T-40°C to +85°C3 SC70-3AJL
MAX6034BEXR41-T-40°C to +85°C3 SC70-3AJQ
PARTVOUTINPUT VOLTAGE (V)MAX6034_EXR21-T2.0482.5 to 5.5
MAX6034_EXR25-T2.500(VOUT + 200mV) to 5.5
MAX6034_EXR30-T3.000(VOUT + 200mV) to 5.5
MAX6034_EXR33-T3.300(VOUT + 200mV) to 5.5
MAX6034_EXR41-T4.096(VOUT + 200mV) to 5.5
Selector GuideOUTGND
MAX6034
SC70TOP VIEW
Pin ConfigurationMAX6034*
*CAPACITOR IS OPTIONAL.
REFERENCE
OUT
OUT
GND
+SUPPLY INPUT (SEE SELECTOR GUIDE)
ypical Operating Circuit
MAX6034
Precision, Micropower, Low-Dropout, SC70
Series Voltage Reference
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS–MAX6034_21 (VOUT= 2.048V)
(VIN= 2.7V, IOUT= 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
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.
(Voltages Referenced to GND)
IN...........................................................................-0.3V to +6.0V
OUT.............................................................-0.3V to (VIN+ 0.3V)
Output Short Circuit to GND or IN..............................Continuous
Continuous Power Dissipation (TA= +70°C)
3-Pin SC70 (derate 2.9mW/°C above +70°C).............235mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
OUTPUT
MAX6034A_21 (±0.2%)2.0442.0482.052Output VoltageVOUTTA = +25°CMAX6034B_21 (±0.4%)2.0402.0482.056V
MAX6034A_21730Output Voltage Temperature
Coefficient (Note 2)TCVOUTMAX6034B_21775ppm/°C
Line RegulationΔVOUT/
ΔVIN2.5V ≤ VIN ≤ 5.5V33220µV/V
Sourcing: 0 ≤ IOUT ≤ 1mA0.251.0Load RegulationΔVOUT/
ΔIOUTSinking: 0 ≤ IOUT ≤ 200µA2.162mV/mA
Short to GND12OUT Short-Circuit CurrentISCShort to IN4mA
Temperature HysteresisΔVOUT/
cycle(Note 3)100ppm
Long-Term StabilityΔVOUT/
time1000hr at TA = +25°C90ppm/
1000hr
DYNAMIC
f = 0.1Hz to 10Hz45µVP-PNoise VoltageeOUTf = 10Hz to 10kHz46µVRMS
Ripple RejectionΔVOUT/
ΔVINVIN = 2.7V ±100mV, f = 120Hz80dB
Turn-On Settling TimetRTo VOUT = 0.1% of final value,
COUT = 50pF85µs
Capacitive-Load Stability RangeCOUT(Note 4)01µF
INPUT
Supply Voltage RangeVINGuaranteed by line-regulation test2.55.5V
Quiescent Supply CurrentIIN85115µA
Change in Supply Current Per
Change in Input VoltageΔIIN/ΔVIN2.5V ≤ VIN ≤ 5.5V4.116µA/V
MAX6034
Precision, Micropower, Low-Dropout, SC70
Series Voltage Reference
ELECTRICAL CHARACTERISTICS–MAX6034_25 (VOUT= 2.500V)
(VIN= 2.7V, IOUT= 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
OUTPUT
MAX6034A_25 (±0.2%)2.4952.5002.505Output VoltageVOUTTA = +25°CMAX6034B_25 (±0.4%)2.4902.5002.510V
MAX6034A_25730Output Voltage Temperature
Coefficient (Note 2)TCVOUTMAX6034B_25775ppm/°C
Line RegulationΔVOUT/
ΔVIN(VOUT + 200mV) ≤ VIN ≤ 5.5V40250µV/V
Sourcing: 0 ≤ IOUT ≤ 1mA0.221.0Load RegulationΔVOUT/
ΔIOUTSinking: 0 ≤ IOUT ≤ 200µA2.58mV/mA
Short to GND12OUT Short-Circuit CurrentISCShort to IN4mA
Dropout VoltageVIN -
VOUTIOUT = 1mA (Note 5)70200mV
Temperature HysteresisΔVOUT/
cycle(Note 3)100ppm
Long-Term StabilityΔVOUT/
time1000hr at TA = +25°C90ppm/
1000hr
DYNAMIC
f = 0.1Hz to 10Hz55µVP-PNoise VoltageeOUTf = 10Hz to 10kHz64µVRMS
Ripple RejectionΔVOUT/
ΔVINVIN = 2.7V ±100mV, f = 120Hz80dB
Turn-On Settling TimetRTo VOUT = 0.1% of final value,
COUT = 50pF140µs
Capacitive-Load Stability RangeCOUT(Note 4)01µF
INPUT
Supply Voltage RangeVINGuaranteed by line-regulation testVOUT
+ 0.25.5V
Quiescent Supply CurrentIIN85115µA
Change in Supply Current Per
Change in Input VoltageΔIIN/ΔVIN(VOUT + 200mV) ≤ VIN ≤ 5.5V4.216µA/V
MAX6034
Precision, Micropower, Low-Dropout, SC70
Series Voltage Reference
ELECTRICAL CHARACTERISTICS–MAX6034_30 (VOUT= 3.000V)
(VIN= 5V, IOUT= 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
OUTPUT
MAX6034A_30 (±0.2%)2.9943.0003.006Output VoltageVOUTTA = +25°CMAX6034B_30 (±0.4%)2.9883.0003.012V
MAX6034A_30730Output Voltage Temperature
Coefficient (Note 2)TCVOUTMAX6034B_30775ppm/°C
Line RegulationΔVOUT/
ΔVIN(VOUT + 200mV) ≤ VIN ≤ 5.5V43280µV/V
Sourcing: 0 ≤ IOUT ≤ 1mA0.301.3
Load RegulationΔVOUT/
ΔIOUTSinking: 0 ≤ IOUT ≤ 200µA2.68mV/mA
Short to GND13
OUT Short-Circuit CurrentISCShort to IN4mA
Dropout Voltage V IN - V OU TIOUT = 1mA (Note 5)70200mV
Temperature HysteresisΔVOUT/
cycle(Note 3)100ppm
Long-Term StabilityΔVOUT/
time1000hr at TA = +25°C90ppm/
1000hr
DYNAMIC
f = 0.1Hz to 10Hz66µVP-PNoise VoltageeOUTf = 10Hz to 10kHz80µVRMS
Ripple RejectionΔVOUT/
ΔVINVIN = 5V ±100mV, f = 120Hz76dB
Turn-On Settling TimetRTo VOUT = 0.1% of final value,
COUT = 50pF165µs
Capacitive-Load Stability RangeCOUT(Note 4)01µF
INPUT
Supply Voltage RangeVINGuaranteed by line-regulation testVOUT
+ 0.25.5V
Quiescent Supply CurrentIIN95125µA
Change in Supply Current Per
Change in Input VoltageΔIIN/ΔVIN(VOUT + 200mV) ≤ VIN ≤ 5.5V4.516µA/V
MAX6034
Precision, Micropower, Low-Dropout, SC70
Series Voltage Reference
ELECTRICAL CHARACTERISTICS–MAX6034_33 (VOUT= 3.300V)
(VIN= 5V, IOUT= 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
OUTPUT
MAX6034A_33 (±0.2%)3.2933.3003.307Output VoltageVOUTTA = +25°CMAX6034B_33 (±0.4%)3.2873.3003.313V
MAX6034A_33730Output Voltage Temperature
Coefficient (Note 2)TCVOUTMAX6034B_33775ppm/°C
Line RegulationΔVOUT/
ΔVIN(VOUT + 200mV) ≤ VIN ≤ 5.5V45300µV/V
Sourcing: 0 ≤ IOUT ≤ 1mA0.31.3Load RegulationΔVOUT/
ΔIOUTSinking: 0 ≤ IOUT ≤ 200µA38.6mV/mA
Short to GND13OUT Short-Circuit CurrentISCShort to IN4mA
Dropout VoltageV IN - V OU TIOUT = 1mA (Note 5)70200mV
Temperature HysteresisΔVOUT/
cycle(Note 3)100ppm
Long-Term StabilityΔVOUT/
time1000hr at TA = +25°C90ppm/
1000hr
DYNAMIC
f = 0.1Hz to 10Hz73µVP-PNoise VoltageeOUTf = 10Hz to 10kHz88µVRMS
Ripple RejectionΔVOUT/
ΔVINVIN = 5V ±100mV, f = 120Hz76dB
Turn-On Settling TimetRTo VOUT = 0.1% of final value,
COUT = 50pF200µs
Capacitive-Load Stability RangeCOUT(Note 4)01µF
INPUT
Supply Voltage RangeVINGuaranteed by line-regulation testVOUT
+ 0.25.5V
Quiescent Supply CurrentIIN95125µA
Change in Supply Current Per
Change in Input VoltageΔIIN/ΔVIN(VOUT + 200mV) ≤ VIN ≤ 5.5V3.816µA/V
MAX6034
Precision, Micropower, Low-Dropout, SC70
Series Voltage Reference
ELECTRICAL CHARACTERISTICS–MAX6034_41 (VOUT= 4.096V)
(VIN= 5V, IOUT= 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
OUTPUT
MAX6034A_41 (±0.2%)4.0884.0964.104Output VoltageVOUTTA = +25°CMAX6034B_41 (±0.4%)4.0804.0964.112V
MAX6034A_41730Output Voltage Temperature
Coefficient (Note 2)TCVOUTMAX6034B_41775ppm/°C
Line RegulationΔVOUT/
ΔVIN(VOUT + 200mV) ≤ VIN ≤ 5.5V50350µV/V
Sourcing: 0 ≤ IOUT ≤ 1mA0.351.5
Load RegulationΔVOUT/
ΔIOUTSinking: 0 ≤ IOUT ≤ 200µA3.49.8mV/mA
Short to GND13
OUT Short-Circuit CurrentISCShort to IN7mA
Dropout VoltageV IN - V OU TIOUT = 1mA (Note 5)70200mV
Temperature HysteresisΔVOUT/
cycle(Note 3)100ppm
Long-Term StabilityΔVOUT/
time1000hr at TA = +25°C90ppm/
1000hr
DYNAMIC
f = 0.1Hz to 10Hz90µVP-PNoise VoltageeOUTf = 10Hz to 10kHz105µVRMS
Ripple RejectionΔVOUT/
ΔVINVIN = 5V ±100mV, f = 120Hz73dB
Turn-On Settling TimetRTo VOUT = 0.1% of final value,
COUT = 50pF260µs
Capacitive-Load Stability RangeCOUT(Note 4)01µF
INPUT
Supply Voltage RangeVINGuaranteed by line-regulation testVOUT
+ 0.25.5V
Quiescent Supply CurrentIIN95125µA
Change in Supply Current Per
Change in Input VoltageΔIIN/ΔVIN(VOUT + 200mV) ≤ VIN ≤ 5.5V4.716µA/V
Note 1:All devices are 100% production tested at TA= +25°C and are guaranteed by design for TA= TMINto TMAXas specified.
Note 2:Temperature coefficient is measured by the “box” method, i.e. the maximum ΔVOUT/ VOUTis divided by the maximum ΔT.
Note 3:Temperature hysteresis is defined as the change in +25°C output voltage after cycling the device from TMINto TMAX.
Note 4:Not production tested. Guaranteed by design.
Note 5:Dropout voltage is defined as the minimum differential voltage (VIN - VOUT) at which VOUTdecreases by 0.2% from its
original value at VIN= 5.0V (VIN= 2.7V for MAX6034_25).
MAX6034
Precision, Micropower, Low-Dropout, SC70
Series Voltage Reference
Typical Operating Characteristics
(VIN= 2.7V for MAX6034_21/25, VIN= 5V for MAX6034_30/33/41, IOUT= 0, TA= +25°C, unless otherwise noted.) (Note 6)
MAX6034 toc09
SOURCE CURRENT (mA)
DROPOUT VOLTAGE (V)321
MAX6034_41
DROPOUT VOLTAGE vs. SOURCE CURRENT
(VOUT = 4.096V)TA = +85°C
TA = +25°C
TA = -40°C
MAX6034 toc08
SINK CURRENT (mA)
DROPOUT VOLTAGE (V)
MAX6034_25
DROPOUT VOLTAGE vs. SINK CURRENT
(VOUT = 2.500V)
TA = +85°C
TA = +25°C
TA = -40°C
MAX6034 toc07
SOURCE CURRENT (mA)
DROPOUT VOLTAGE (V)321
MAX6034_25
DROPOUT VOLTAGE vs. SOURCE CURRENT
(VOUT = 2.500V)
TA = +85°C
TA = +25°C
TA = -40°C
SUPPLY CURRENT vs. TEMPERATUREMAX6034 toc06
TEMPERATURE (°C)
SUPPLY CURRENT (3510-15
VIN = 5.5V
VIN = 2.7V
MAX6034 toc05
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
SUPPLY CURRENT
vs. SUPPLY VOLTAGE4002006008001000
MAX6034_41
LONG-TERM DRIFT
(VOUT = 4.096V)MAX6034 toc04
TIME (hr)
OUTPUT VOLTAGE (V)
MAX6034_21
LONG-TERM DRIFT
(VOUT = 2.048V)
MAX6034 toc03
TIME (hr)
OUTPUT VOLTAGE (V)
MAX6034 toc02
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)3510-15
MAX6034_41
OUTPUT VOLTAGE TEMPERATURE DRIFT
(VOUT = 4.096V)
THREE TYPICAL PARTS
MAX6034 toc01
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)3510-15
MAX6034_21
OUTPUT VOLTAGE TEMPERATURE DRIFT
(VOUT = 2.048V)
THREE TYPICAL PARTS
