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MAX6325CPA-MAX6325CSA-MAX6325ESA
1ppm/C / Low-Noise / +2.5V/+4.096V/+5V Voltage References
_______________General DescriptionThe MAX6325/MAX6341/MAX6350 are low-noise, preci-
sion voltage references with extremely low, 0.5ppm/°C
typical temperature coefficients and excellent, ±0.02%
initial accuracy. These devices feature buried-zener
technology for lowest noiseperformance. Load-regula-
tion specifications are guaranteed for source and sink
currents up to 15mA. Excellent line and load regulation
and low output impedance at high frequencies make
them ideal for high-resolution data-conversion systems
up to 16 bits.
The MAX6325 is set for a 2.500V output, the MAX6341
is set for a 4.096V output, and the MAX6350 is set for a
5.000V output. All three provide for the option of exter-
nal trimming and noise reduction.
________________________ApplicationsHigh-Resolution Analog-to-Digital
and Digital-to-Analog Converters
High-Accuracy Reference Standard
High-Accuracy Industrial and Process Control
Digital Voltmeters
ATE Equipment
Precision Current Sources
____________________________FeaturesUltra-Low, 1ppm/°C Max TempcoVery Low, 1.5µVp-p Noise (0.1Hz to 10Hz)
(MAX6325)±0.02% Initial Accuracy (MAX6350)±15mA Output Source and Sink CurrentLow, 18mW Power Consumption (MAX6325)Industry-Standard PinoutOptional Noise Reduction and Voltage TrimExcellent Transient Response8-Pin SO Package AvailableLow, 30ppm/1000h Long-Term StabilityStable for All Capacitive Loads
MAX6325/MAX6341/MAX6350
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V
Voltage References
__________Typical Operating Circuit
__________________Pin Configuration19-1203; Rev 0; 4/97
______________Ordering Information
MAX6325/MAX6341/MAX6350
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V
Voltage References
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—MAX6325(VIN= 10V, IOUT= 0mA, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°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.
(Voltages Referenced to GND)................................................................................-0.3V to 40V
OUT, TRIM..................................................................-0.3V to 12V
NR.................................................................................-0.3V to 6V
OUT ShortCircuit to GND Duration (VIN≤12V)..........Continuous
OUT Short Circuit to GND Duration (VIN≤40V)....................5sec
OUT Short Circuit to IN Duration (VIN≤12V)..............Continuous
Continuous Power Dissipation (TA= +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C)................727mW
SO (derate 5.88mW/°C above +70°C)............................471mW
CERDIP (derate 8.00mW/°C above +70°C)....................640mW
Operating Temperature Ranges
MAX63_ _ C_ A.......................................................0°C to +70°C
MAX63_ _ E_ A....................................................-40°C to +85°C
MAX63_ _ MJA..................................................-55°C to +125°C
Storage Temperature Range..............................-65°C to +150°C
Lead Temperature (soldering, 10sec)...............................+300°C
MAX6325/MAX6341/MAX6350
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V
Voltage References
ELECTRICAL CHARACTERISTICS—MAX6341(VIN= 10V, IOUT= 0mA, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
MAX6325/MAX6341/MAX6350
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V
Voltage References
ELECTRICAL CHARACTERISTICS—MAX6350(VIN= 10V, IOUT= 0mA, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)
Note 1:Temperature coefficient is measured by the box method; i.e., the maximum ΔVOUTis divided by ΔT x VOUT.
Note 2:Line regulation (ΔVOUT/ (VOUTx ΔVIN)) and load regulation (ΔVOUT/ (VOUTx ΔIOUT)) are measured with pulses and do not
include output voltage changes due to die-temperature changes.
Note 3:Noise specifications are 100% tested for the 10Hz to 1kHz bandwidth. Production testing in the 0.1Hz to 10Hz bandwidth is
available upon request.
Note 4:Temperature hysteresis is specified at TA= +25°C by measuring VOUTbefore and after changing temperature by +25°C
using the plastic DIP package.
MAX6325/MAX6341/MAX6350
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V
Voltage References
__________________________________________Typical Operating Characteristics(VIN= 10V, IOUT= 0mA, TA = +25°C, unless otherwise noted.)
MAX6325/MAX6341/MAX6350
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V
Voltage References
____________________________Typical Operating Characteristics (continued) (VIN= 10V, IOUT= 0mA, TA = +25°C, unless otherwise noted.)
