Datasheet

REF3212, REF3220
REF3225, REF3230
REF3233, REF3240
www.ti.com SBVS058C –JUNE 2005– REVISED AUGUST 2011
ELECTRICAL CHARACTERISTICS
Boldface limits apply over the listed temperature range.
At T
A
= +25°C, I
LOAD
= 0mA, and V
IN
= 5V, unless otherwise noted.
REF32xx
PARAMETER CONDITIONS MIN TYP MAX UNIT
REF3212 (1.25V)
OUTPUT VOLTAGE, V
OUT
1.2475 1.25 1.2525 V
Initial accuracy –0.2 0.01 0.2 %
NOISE
Output voltage noise f = 0.1Hz to 10Hz 17 µV
PP
Voltage noise f = 10Hz to 10kHz 24 µV
RMS
REF3220 (2.048V)
OUTPUT VOLTAGE, V
OUT
2.044 2.048 2.052 V
Initial accuracy –0.2 0.01 0.2 %
NOISE
Output voltage noise f = 0.1Hz to 10Hz 27 µV
PP
Voltage noise f = 10Hz to 10kHz 39 µV
RMS
REF3225 (2.5V)
OUTPUT VOLTAGE, V
OUT
2.495 2.50 2.505 V
Initial accuracy –0.2 0.01 0.2 %
NOISE
Output voltage noise f = 0.1Hz to 10Hz 33 µV
PP
Voltage noise f = 10Hz to 10kHz 48 µV
RMS
REF3230 (3V)
OUTPUT VOLTAGE, V
OUT
2.994 3 3.006 V
Initial accuracy –0.2 0.01 0.2 %
NOISE
Output voltage noise f = 0.1Hz to 10Hz 39 µV
PP
Voltage noise f = 10Hz to 10kHz 57 µV
RMS
REF3233 (3.3V)
OUTPUT VOLTAGE, V
OUT
3.293 3.3 3.307 V
Initial accuracy –0.2 0.01 0.2 %
NOISE
Output voltage noise f = 0.1Hz to 10Hz 43 µV
PP
Voltage noise f = 10Hz to 10kHz 63 µV
RMS
REF3240 (4.096V)
OUTPUT VOLTAGE, V
OUT
4.088 4.096 4.104 V
Initial accuracy –0.2 0.01 0.2 %
NOISE
Output voltage noise f = 0.1Hz to 10Hz 53 µV
PP
Voltage noise f = 10Hz to 10kHz 78 µV
RMS
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