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MAX6325ESA+ |MAX6325ESAMAXN/a3avai1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V Voltage References
MAX6341CSA+N/AN/a2500avai1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V Voltage References
MAX6341ESA+ |MAX6341ESAMAXIMN/a50avai1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V Voltage References
MAX6350CPA+ |MAX6350CPAMAXIMN/a8avai1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V Voltage References
MAX6350ESA+ |MAX6350ESAMAXIMN/a5avai1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V Voltage References


MAX6341CSA+ ,1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V Voltage ReferencesMAX6325/MAX6341/MAX63501ppm/°C, Low-Noise, +2.5V/+4.096V/+5VVoltage References
MAX6341ESA+ ,1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V Voltage ReferencesApplications Ordering InformationHigh-Resolution Analog-to-Digital MAXand Digital-to-Analog Convert ..
MAX6342LUT-T ,Microprocessor reset circuit with power-fail comparator. Reset threshold 4.63V. Push-pull active-low reset output, manual-reset input.Applicationsreset thresholds from 2.33V to 4.63V (see Selector Guides 1, 2).Portable ComputersInser ..
MAX6342MUT-T ,Microprocessor reset circuit with power-fail comparator. Reset threshold 4.38V. Push-pull active-low reset output, manual-reset input.ELECTRICAL CHARACTERISTICS(V = +1.0V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical ..
MAX6342TUT-T ,Microprocessor reset circuit with power-fail comparator. Reset threshold 3.08V. Push-pull active-low reset output, manual-reset input.Applicationsreset thresholds from 2.33V to 4.63V (see Selector Guides 1, 2).Portable ComputersInser ..
MAX6343MUT+ ,6-Pin µP Reset Circuit with Power-Fail ComparatorELECTRICAL CHARACTERISTICS(V = +1.0V to +5.5V, T = -40°C to +125°C, unless otherwise noted. Typical ..
MB15E06 ,Single Serial Input PLL Frequency Synthesizer On-Chip 2.5 GHz PrescalerFUJITSU SEMICONDUCTORDS04-21336-2EDATA SHEETASSPSingle Serial InputPLL Frequency SynthesizerOn-Chip ..
MB15E06PFV1 ,Single Serial Input PLL Frequency Synthesizer On-Chip 2.5 GHz PrescalerFUJITSU SEMICONDUCTORDS04-21336-2EDATA SHEETASSPSingle Serial InputPLL Frequency SynthesizerOn-Chip ..
MB15E07 ,Single Serial Input PLL Frequency Synthesizer FUJITSU SEMICONDUCTORDS04-21343-1EDATA SHEETASSPSingle Serial InputPLL F ..
MB15E07SLPFV1 ,Single Serial Input PLL Frequency Synthesizer On-Chip 2.5 GHz PrescalerFUJITSU SEMICONDUCTORDS04-21358-3EDATA SHEETASSPSingle Serial Input PLL Frequency SynthesizerOn-chi ..
MB15F02L ,Dual Serial Input PLL Frequency Synthesizer FUJITSU SEMICONDUCTORDS04–21353–1EDATA SHEETASSPDual Serial Input PL ..
MB15F02SLPFV1 ,Dual Serial Input PLL Frequency SynthesizerFUJITSU SEMICONDUCTORDS04-21356-3EDATA SHEETASSPDual Serial InputPLL Frequency SynthesizerMB15F02SL ..

MAX6325ESA+-MAX6341CSA+-MAX6341ESA+-MAX6350CPA+-MAX6350ESA+
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V Voltage References
AVAILABLE
General Description
The 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 2.5V output, the MAX6341 is
set for a 4.096V output, and the MAX6350 is set for a
5V output. All three provide for the option of external
trimming and noise reduction.
________________________Applications
High-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/1000hr Long-Term StabilityStable for All Capacitive Loads
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V
Voltage References
REFERENCE OUT
GND
*OPTIONAL
TRIM
OUT
8V TO 36V INPUT2.2μF2.2μF
MAX6325
MAX6341
MAX6350
Typical Operating Circuit
OUTNR
TRIMGND
I.C.
I.C.IN
I.C.
MAX6325
MAX6341
MAX6350
DIP/SO
TOP VIEW
I.C. = INTERNALLY CONNECTED; DO NOT USE
Ordering Information
Ordering Information continued at end of data sheet.
MAX6325CPA
MAX6325CSA0°C to +70°C
0°C to +70°C1.0
8 Plastic DIP
8 SO
MAX6325EPA-40°C to +85°C1.58 Plastic DIP
PARTTEMP. RANGE
MAX
TEMPCO
(ppm/°C)
PIN-
PACKAGE
MAX6325ESA-40°C to +85°C1.58 SO
MAX6325MJA-55°C to +125°C2.58 CERDIP
19-1203; Rev 1; 1/01
Pin Configuration
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 Short-Circuit to GND Duration (VIN≤12V)..........Continuous
OUT Short-Circuit to GND Duration (VIN≤40V)........................5s
OUT Short-Circuit to IN Duration (VIN≤12V)..............Continuous
Continuous Power Dissipation (TA= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C)......727mW
8-Pin SO (derate 5.88mW/°C above +70°C)...................471mW
8-Pin 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, 10s)...................................+300°C
Load Regulation (Note 2)ΔVOUT/
ΔIOUTppm/mA
+25°C
+25°C5+25°CtONTurn-On Settling TimeTo ±0.01% of final value
µVRMS1.32.8+25°CenOutput Noise Voltage (Note 3)µVp-p1.5±15±25C, E, MΔVOUTTrim-Adjustment Range3.0C, E, MIINSupply Current1.82.7+25°C30M
10Hz ≤f ≤1kHz
0.1Hz ≤f ≤10Hz
(Figure 1)C
ppm/
1000hr
315M+25°C
ΔVOUT/tLong-Term StabilityC
+25°CTemperature Hysteresisppm20(Note 4)MEC+25°C
10V ≤VIN≤36VMEC
MAX6325MJA1.02.5M
8V ≤VIN≤10V
CONDITIONS
MAX6325E_A
MAX6325C_A
MAX6325
ppm/V 18+25°C
ΔVOUT/
ΔVINLine Regulation (Note 2)
ppm/°C0.751.5ETCVOUTOutput Voltage Temperature
Coefficient (Note 1)
0.51.0C
Output VoltageVOUT2.4992.5002.501V
C, E, M
PARAMETERSYMBOLMINTYPMAXUNITS
Input Voltage RangeVIN836V
Sourcing: 0mA ≤IOUT≤15mA
Sinking: -15mA ≤IOUT≤0mA
MAX6325/MAX6341/MAX6350
MAX6325/MAX6341/MAX6350
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V
Voltage References
(Note 4)4.0954.0964.097VOUTOutput Voltage+25°CppmTemperature Hysteresis0.51.0
MAX6341
Output Voltage Temperature
Coefficient (Note 1)TCVOUTE0.751.5ppm/°C
+25°C
+25°C1018
MAX6341C_A
MAX6341E_A
CONDITIONSppm/
1000hr
8V ≤VIN≤10V
Long-Term StabilityΔVOUT/t+25°C
Line Regulation (Note 2)ΔVOUT/
ΔVINppm/V
(Figure 1)
0.1Hz ≤f ≤10Hz
10Hz ≤f ≤1kHz836VINInput Voltage Range
+25°C1.92.9IINC, E, M3.2mA
Trim-Adjustment Range
UNITSMINTYPMAXSYMBOLPARAMETER
ΔVOUTC, E, M±24±40mV
2.4µVp-pOutput Noise Voltage (Note 3)en+25°C
2.04.0µVRMS
C, E, M
ELECTRICAL CHARACTERISTICS—MAX6341
(VIN= +10V, IOUT= 0mA, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.)1.02.5MAX6341MJA
To ±0.01% of final valueTurn-On Settling TimetON+25°C8µs303545
+25°C25
10V ≤VIN≤36VC7810
Supply Current1617391617718
+25°C
Sourcing: 0mA ≤IOUT≤15mA
Sinking: -15mA ≤IOUT≤0mA
ΔVOUT/
ΔIOUTLoad Regulation (Note 2)ppm/mA
MAX6325/MAX6341/MAX6350
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 4)4.9995.0005.001VOUTOutput Voltage+25°CppmTemperature Hysteresis0.51.0
MAX63500.751.5
+25°C
+25°C1018
MAX6350C_A
MAX6350E_A
CONDITIONSppm/
1000hr
8V ≤VIN≤10V
Long-Term StabilityΔVOUT/t+25°C
Line Regulation (Note 2)ΔVOUT/
ΔVINppm/V
(Figure 1)
To ±0.01% of final value836VINInput Voltage Range
+25°C2.03.0Supply CurrentIINC, E, M3.3mA
Trim-Adjustment Range
UNITSMINTYPMAXSYMBOLPARAMETER
ΔVOUTC, E, M±30±50mVµsTurn-On Settling TimetON+25°C
C, E, M3035457
+25°C25810V ≤VIN≤36V101616171729
0.1Hz ≤f ≤10Hz
10Hz ≤f ≤1kHz
3.0µVp-pOutput Noise Voltage (Note 3)en+25°C
2.55.0µVRMS
Output Voltage Temperature
Coefficient (Note 1)TCVOUTppm/°C1.02.5MAX6350MJA
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 guaranteed by design.
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.
+25°C
Sourcing: 0mA ≤IOUT≤15mA
Sinking: -15mA ≤IOUT≤0mA
ppm/mAΔVOUT/
ΔIOUTLoad Regulation (Note 2)
MAX6325/MAX6341/MAX6350
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.)
MAX6350
NORMALIZED OUTPUT VOLTAGE
vs. TEMPERATURE
MAX6325 -01
TEMPERATURE (°C)
OUT
(mV)
OUT
(ppm)105-3558545125
MAX6350
CHANGE IN OUTPUT VOLTAGE
vs. OUTPUT CURRENT
MAX6325-07
IOUT (mA)
OUT
TA = +25°C
TA = -40°CTA = +85°C
MAX6341
NORMALIZED OUTPUT VOLTAGE
vs. TEMPERATURE
MAX6325 -02
TEMPERATURE (°C)
OUT
(mV)
OUT
(ppm)105-3558545125
MAX6325
NORMALIZED OUTPUT VOLTAGE
vs. TEMPERATURE
MAX6325 03
TEMPERATURE (°C)
OUT
(mV)
OUT
(ppm)105-3558545125
MAX6341
CHANGE IN OUTPUT VOLTAGE
vs. OUTPUT CURRENT
MAX6325-06
IOUT (mA)
OUTTA = +25°C
TA = -40°C
TA = +85°C
MAX6325
CHANGE IN OUTPUT VOLTAGE
vs. OUTPUT CURRENT
MAX6325-05
IOUT (mA)
OUT
TA = +85°C
TA = -40°CTA = +25°C
CHANGE IN OUTPUT VOLTAGE
vs. INPUT VOLTAGE
MAX6325-04
VIN (V)
OUT
(ppm)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX6325-08
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
MAX6325MAX6341
MAX6350
SUPPLY CURRENT vs. TEMPERATURE
MAX6325-09
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
MAX6341
MAX6350
MAX6325
MAX6325/MAX6341/MAX6350
MAX6325/MAX6341/MAX6350
1ppm/°C, Low-Noise, +2.5V/+4.096V/+5V
Voltage References1M10k
FREQUENCY (Hz)
1001k100k
OUTPUT IMPEDANCE vs. FREQUENCY
MAX6325-14
OUTPUT IMPEDANCE (
ISINK = 5mA
ISOURCE = 5mA1001k10k
MAX6325
OUTPUT NOISE-VOLTAGE
DENSITY vs. FREQUENCY
MAX6325-10
FREQUENCY (Hz)
CNR = 0μF
CNR = 1μF
OUTPUT NOISE DENSITY (nV/
Hz)
1201001k10k
RIPPLE REJECTION
vs. FREQUENCY (CNR = 1μF)
MAX6325-13
FREQUENCY (Hz)
RIPPLE REJECTION (dB)
MAX6341
MAX6325
MAX63501001k10k
MAX6341
OUTPUT NOISE-VOLTAGE
DENSITY vs. FREQUENCY
MAX6325-11
FREQUENCY (Hz)
CNR = 0μF
CNR = 1μF
OUTPUT NOISE DENSITY (nV/
Hz)
1001001k10k
MAX6350
OUTPUT NOISE-VOLTAGE
DENSITY vs. FREQUENCY
MAX6325-12
FREQUENCY (Hz)
CNR = 0μF
CNR = 1μF
OUTPUT NOISE DENSITY (nV/
Hz)1001k10k
RIPPLE REJECTION
vs. FREQUENCY (CNR = 0μF)
MAX6325-15
FREQUENCY (Hz)
RIPPLE REJECTION (dB)
MAX6325MAX6341
MAX6350
MAX6325
0.1Hz to 10Hz NOISE
OUT
, 0.5
V/div
MAX6325-16
1s/div
COUT = CNR = 0μF
MAX6341
0.1Hz to 10Hz NOISE
OUT
, 1
V/div
MAX6325-17
1s/div
COUT = CNR = 0μF
MAX6350
0.1Hz to 10Hz NOISE
OUT
, 1
V/div
1s/div
MAX6325-18
COUT = CNR = 0μF
____________________________Typical Operating Characteristics (continued)
(VIN= +10V, IOUT= 0mA, TA = +25°C, unless otherwise noted.)
MAX6325/MAX6341/MAX6350
MAX6325/MAX6341/MAX6350
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