REF-01 Datasheet, PDF (1/8 Pages) Analog Devices – +10V Precision Viltage Reference

FEATURES
■ _{Trimmed Output ±0.3%}
■ _{Low Drift—5ppm/°C Typ}
■ _{Low Noise—3ppm(P-P)}
■ _{High Line Rejection}
■ _{Temperature Output—REF-02}
■ _{Low Supply Current 1.4mA Max}
U
APPLICATIO S
■ _{A/D and D/A Converters}
■ _{Precision Regulators}
■ _{Constant Current Sources}
■ _{V/F Converters}
■ _{Bridge Excitation}
TYPICAL APPLICATIO
REF-01/REF-02
Precision
Voltage References
DESCRIPTIO
The REF-01/REF-02 are precision 10V and 5V bandgap
references which provide stable output voltages over a
wide range of operating conditions. Output voltage is
accurate to ±0.3% with a low 5ppm/°C typical temperature
coefficient. The REF-01 and REF-02 are excellent choices
for applications where low drift, moderate accuracy, low
power consumption and low cost are considerations.
The REF-02 includes a temperature output pin which
provides a linear voltage proportional to absolute tem-
perature.
For lower drift and higher accuracy references, please see
the LT1019 and LT1021 data sheets.
, LTC and LT are registered trademarks of Linear Technology Corporation.
15V 412Ω*
1/2W
5V
REF-02
IN
OUT
GND
Ultra Linear Strain Gauge Amplifier
A1^†
LT307
350Ω
BRIDGE
ACTIVE
ELEMENT
R3
2M
R2
20k
–
R4
A2
20k
LT1001
+
R5
2M
R6
2M**
*REDUCES REFERENCE AND AMPLIFIER LOADING.
**IF R6 = R3, BRIDGE IS NOT LOADED BY R2 AND R4.
†_{A1 VOS AND DRIFT ARE NOT CRITICAL.}
–5V
357Ω*
1/2W
–15V
GAIN = 100
TA01a
Output Voltage Temperature Drift
1.003
1.002
1.001
0°C TO 70°C BOX GUARANTEED FOR
REF-01E AND REF-02E (8.5ppm/°C)
1.000
0.999
0.998
FULL TEMP RANGE BOX GUARANTEED FOR
REF-01A AND REF-02A (8.5ppm/°C)
0.997
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
TA01b
1