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REF02 Schematic ( PDF Datasheet ) - Maxim Integrated

Teilenummer REF02
Beschreibung Precision Voltage References
Hersteller Maxim Integrated
Logo Maxim Integrated Logo 




Gesamt 9 Seiten
REF02 Datasheet, Funktion
19-0887; Rev 7; 4/07
+5V, +10V Precision
Voltage References
General Description
The REF01/REF02 are industry-standard precision volt-
age references. The stable 10V output of the REF01
can be adjusted over a ±6% range with minimal effect
on temperature stability. The 5V output REF02 can also
be adjusted over a ±6% range. The 10V REF01 has a
single-supply operation over an input voltage range of
13V to 33V, while the 5V REF02 has a single-supply
operation over an input voltage range of 7V to 33V.
Both devices offer a low-current drain of 1mA. The
REF02 also provides a TEMP pin whose output voltage
varies linearly with temperature, making this device
suitable for a wide variety of temperature-sensing and
control applications. For new designs, refer to the
MAX6035 or MAX6143 data sheets.
PART
TEMP RANGE
MAX TEMPCO
(ppm/°C)
REF01EP
0°C to +70°C
8.5
REF01EP+
0°C to +70°C
8.5
REF01HP
0°C to +70°C
25
REF01HP+
0°C to +70°C
25
REF01HSA
0°C to +70°C
25
REF01HSA+
0°C to +70°C
25
REF01CP
0°C to +70°C
65
REF01CP+
0°C to +70°C
65
REF01CSA
0°C to +70°C
65
REF01CSA+
0°C to +70°C
65
REF01CESA
-40°C to +85°C
65
REF01CESA+
-40°C to +85°C
65
+Denotes a lead-free package.
Ordering Information continued at end of data sheet.
Features
Pretrimmed to +5V, +10V
Excellent Temperature Stability: 3ppm/°C (typ)
Low Noise: 10µVP-P (REF02)
Short-Circuit Protected
Linear Temperature Transducer Output (REF02)
Ordering Information
INITIAL ERROR
(mV)
±30
±30
±50
±50
±50
±50
±100
±100
±100
±100
±100
±100
PIN-PACKAGE
8 Plastic DIP
8 Plastic DIP
8 Plastic DIP
8 Plastic DIP
8 SO
8 SO
8 Plastic DIP
8 Plastic DIP
8 SO
8 SO
8 SO
8 SO
PKG
CODE
P8-2
P8-2
P8-2
P8-2
S8-2
S8-2
P8-2
P8-2
S8-2
S8-2
S8-2
S8-2
Applications
Analog-to-Digitial Converters
Digitial-to-Analog Converters
Digital Voltmeters
Voltage Regulators
Threshold Detectors
Typical Operating Circuit
+15V
2
VIN
6
VO
OUTPUT
REF01
REF02 TRIM 5
GND
4
RP
10k
REFERENCE WITH TRIMMED OUTPUT.
________________________________________________________________ Maxim Integrated Products 1
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.






REF02 Datasheet, Funktion
+5V, +10V Precision
Voltage References
ELECTRICAL CHARACTERISTICS–REF02 (continued)
(VIN = +15V, TA = TMIN to TMAX, IL = 0mA, unless otherwise noted.)
Note 5: Guaranteed by design.
Note 6: Line and load regulation specifications include the effect of self heating. 100% production tested at TA = +25°C and guaranteed
by design for TA = TMIN to TMAX, as specified.
Note 7: Limit current in or out of pin 3 to 50nA and capacitance on pin 3 to 30pF.
Note 8: VOT is defined as the absolute difference between the maximum output voltage and the minimum output voltage over the
specified temperature range expressed as a percentage of 5V. Guaranteed by design.
VOT
=
⎣⎢
VMAX - VMIN
5V
⎦⎥
×
100
Note 9: TCVO is defined as VOT divided by the temperature range. Guaranteed by design.
Output Adjustment
The REF02 trim terminal can be used to adjust the out-
put voltage over a 5V ±300mV range. This feature
allows the system designer to trim system errors by set-
ting the reference to a voltage other than 5V (refer to
the Typical Operating Circuit).
Adjustment of the output does not significantly affect
the temperature performance of the device. Typically,
the temperature coefficient change is 0.7ppm/°C for
100mV of output adjustment.
Temperature Voltage Output
The REF02 provides a temperature-dependent output
voltage on the TEMP pin. This voltage is proportional to
the absolute temperature, and has a scale factor of
approximately 2.1mV/°C (Figure 1).
Output Voltage = 2.1(T + 273)mV
where T = Temperature in °C.
880
830
780
730
680
630
580
530
480
430
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Figure 1. REF02 Temperature/Voltage Output vs. Temperature
6 _______________________________________________________________________________________

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