MAX6126AASA21 ,Ultra-High-Precision, Ultra-Low-Noise, Series Voltage ReferenceFeaturesThe MAX6126 is an ultra-low-noise, high-precision, low- Ultra-Low 1.3µV Noise (0.1Hz to 10 ..
MAX6126AASA25+ ,Ultra-High-Precision, Ultra-Low-Noise, Series Voltage ReferenceMAX6126 Ultra-High-Precision, Ultra-Low-Noise,Series Voltage Reference
MAX6126AASA50 ,Ultra-High-Precision, Ultra-Low-Noise, Series Voltage ReferenceApplicationsGNDS 4 5 I.C.*High-Resolution A/D and D/A ConvertersATE EquipmentSO/µ MAXHigh-Accuracy ..
MAX6126B25+ ,Ultra-High-Precision, Ultra-Low-Noise, Series Voltage ReferenceFeaturesThe MAX6126 is an ultra-low-noise, high-precision, low- ● Ultra-Low 1.3μV Noise (0.1Hz to 1 ..
MAX6126B30+ ,Ultra-High-Precision, Ultra-Low-Noise, Series Voltage ReferenceElectrical Characteristics—MAX6126_21 (V = 2.048V)OUT(V = 5V, C = 0.1μF, I = 0, T = T to T , unless ..
MAX6126B50 ,Ultra-High-Precision, Ultra-Low-Noise, Series Voltage ReferenceGeneral Description Beneits and
MAZS0510M ,Silicon planar typeFeatures•SS-mini type 2-pin package•Low noise type•V rank classified (V = 2.4 V to 39 V)Z Z
MAZS0510-M ,Silicon planar typeElectrical characteristics within part numbers T = 25°CaTemperature coefficientZener voltage Rever ..
MAZS0560M ,Silicon planar typeElectrical Characteristics T = 25°Ca Parameter Symbol Conditions Min Typ Max UnitForward voltage V ..
MAZS0620M ,Silicon planar typeAbsolute Maximum Ratings T = 25°Ca1.2 ± 0.1Parameter Symbol Rating Unit1.6 ± 0.1Instanious forward ..
MAZS068 ,Small-signal deviceelectrical characteristicsZK Zwithin part numbersZener operating resistance R I Specified value ΩZ ..
MAZS150 ,Small-signal deviceElectrical characteristics within part numbers T = 25°C±3°CaTemperatureReverse Zener operatingcoef ..
MAX6126AASA21-MAX6126AASA50
Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference
General DescriptionThe MAX6126 is an ultra-low-noise, high-precision, low-
dropout voltage reference. This family of voltage refer-
ences feature curvature-correction circuitry and
high-stability, laser-trimmed, thin-film resistors that
result in 3ppm/°C (max) temperature coefficients and
an excellent ±0.02% (max) initial accuracy. The propri-
etary low-noise reference architecture produces a low
flicker noise of 1.3µVP-Pand wideband noise as low as
60nV/√Hz(2.048V output) without the increased supply
current usually found in low-noise references. Improve
wideband noise to 35nV/√Hzand AC power-supply
rejection by adding a 0.1µF capacitor at the noise
reduction pin. The MAX6126 series mode reference
operates from a wide 2.7V to 12.6V supply voltage
range and load-regulation specifications are guaran-
teed to be less than 0.025Ωfor sink and source cur-
rents up to 10mA. These devices are available over the
automotive temperature range of -40°C to +125°C.
The MAX6126 typically draws 380µA of supply current
and is available in 2.048V, 2.500V, 3.000V, 4.096V, and
5.000V output voltages. These devices also feature
dropout voltages as low as 200mV. Unlike conventional
shunt-mode (two-terminal) references that waste supply
current and require an external resistor, the MAX6126
offers supply current that is virtually independent of
supply voltage and does not require an external resis-
tor. The MAX6126 is stable with 0.1µF to 10µF of load
capacitance.
The MAX6126 is available in the tiny 8-pin µMAX, as
well as 8-pin SO packages.
ApplicationsHigh-Resolution A/D and D/A Converters
ATE Equipment
High-Accuracy Reference Standard
Precision Current Sources
Digital Voltmeters
High-Accuracy Industrial and Process Control
FeaturesUltra-Low 1.3µVP-PNoise (0.1Hz to 10Hz, 2.048V
Output)Ultra-Low 3ppm/°C (max) Temperature Coefficient±0.02% (max) Initial Accuracy Wide (VOUT+ 200mV) to 12.6V Supply Voltage
RangeLow 200mV (max) Dropout Voltage380µA Quiescent Supply Current10mA Sink/Source-Current CapabilityStable with CLOAD= 0.1µF to 10µFLow 20ppm/1000hr Long-Term Stability0.025Ω(max) Load Regulation20µV/V (max) Line RegulationForce and Sense Outputs for Remote Sensing
MAX6126
Ultra-High-Precision, Ultra-Low-Noise,
Series Voltage Reference
Pin Configuration
Ordering Information19-2647; Rev 2; 6/03
Ordering Information continued at end of data sheet.
MAX6126
Ultra-High-Precision, Ultra-Low-Noise,
Series Voltage Reference
ABSOLUTE MAXIMUM RATINGSStresses 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.
(All voltages referenced to GND)
GNDS....................................................................-0.3V to +0.3V
IN...........................................................................-0.3V to +13V
OUTF, OUTS, NR........-0.3V to the lesser of (VIN+ 0.3V) or +6V
Output Short Circuit to GND or IN..........................................60s
Continuous Power Dissipation (TA= +70°C)
8-Pin µMAX (derate 4.5mW/°C above +70°C) ............362mW
8-Pin SO (derate 5.88mW/°C above +70°C) ...............471mW
Operating Temperature Range ........................-40°C to +125°C
Junction Temperature .....................................................+150°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
ELECTRICAL CHARACTERISTICS—MAX6126_21 (VOUT= 2.048V)
MAX6126
Ultra-High-Precision, Ultra-Low-Noise,
Series Voltage Reference
ELECTRICAL CHARACTERISTICS—MAX6126_21 (VOUT= 2.048V) (continued)
ELECTRICAL CHARACTERISTICS—MAX6126_25 (VOUT= 2.500V)
MAX6126
Ultra-High-Precision, Ultra-Low-Noise,
Series Voltage Reference
ELECTRICAL CHARACTERISTICS—MAX6126_25 (VOUT= 2.500V) (continued)(VIN= 5V, CLOAD= 0.1µF, IOUT= 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
ELECTRICAL CHARACTERISTICS—MAX6126_30 (VOUT= 3.000V)(VIN= 5V, CLOAD= 0.1µF, IOUT= 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
MAX6126
Ultra-High-Precision, Ultra-Low-Noise,
Series Voltage Reference
ELECTRICAL CHARACTERISTICS—MAX6126_30 (VOUT= 3.000V) (continued)(VIN= 5V, CLOAD= 0.1µF, IOUT= 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
ELECTRICAL CHARACTERISTICS—MAX6126_41 (VOUT= 4.096V)(VIN= 5V, CLOAD= 0.1µF, IOUT= 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
MAX6126
Ultra-High-Precision, Ultra-Low-Noise,
Series Voltage Reference
ELECTRICAL CHARACTERISTICS—MAX6126_41 (VOUT= 4.096V) (continued)(VIN= 5V, CLOAD= 0.1µF, IOUT= 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
MAX6126
Ultra-High-Precision, Ultra-Low-Noise,
Series Voltage Reference
ELECTRICAL CHARACTERISTICS—MAX6126_50 (VOUT= 5.000V)(VIN= 5.5V, CLOAD= 0.1µF, IOUT= 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
MAX6126
Ultra-High-Precision, Ultra-Low-Noise,
Series Voltage Reference
ELECTRICAL CHARACTERISTICS—MAX6126_50 (VOUT= 5.000V) (continued)(VIN= 5.5V, CLOAD= 0.1µF, IOUT= 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
Note 2:Thermal hysteresis is defined as the change in +25°C output voltage before and after cycling the device from TMAXto TMIN.
Note 3:Dropout voltage is defined as the minimum differential voltage (VIN- VOUT) at which VOUTdecreases by 0.1% from its
original value at VIN= 5.0V (VIN= 5.5V for VOUT= 5.0V).
Typical Operating Characteristics(VIN= 5V for MAX6126_21/25/30/41, VIN= 5.5V for MAX6126_50, CLOAD= 0.1µF, IOUT= 0, TA= +25°C, unless otherwise specified.)
(Note 5)
Typical Operating Characteristics (continued)(VIN= 5V for MAX6126_21/25/30/41, VIN= 5.5V for MAX6126_50, CLOAD= 0.1µF, IOUT= 0, TA= +25°C, unless otherwise specified.)
(Note 5)
MAX6126
Ultra-High-Precision, Ultra-Low-Noise,
Series Voltage Reference
MAX6126A_50
OUTPUT VOLTAGE TEMPERATURE DRIFT
(VOUT = 5.000V) (µMAX)MAX6126 toc04
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
MAX6126_21
LOAD REGULATION
MAX6126 toc05
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE (V)0-5
MAX6126_50
LOAD REGULATION
MAX6126 toc06
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE (V)0-5
MAX6126_50
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX6126 toc10
PSRR (dB)
MAX6126_21
SUPPLY CURRENT vs. INPUT VOLTAGE
MAX6126 toc11
INPUT VOLTAGE (V)
SUPPLY CURRENT (108642
MAX6126_50
SUPPLY CURRENT vs. INPUT VOLTAGE
MAX6126 toc12
SUPPLY CURRENT (106842
MAX6126_25
DROPOUT VOLTAGE
vs. SOURCE CURRENT
MAX6126 toc07
SOURCE CURRENT (mA)
DROPOUT VOLTAGE (mV)963
015
