REF3312 Datasheet, PDF (6/18 Pages) Texas Instruments – 3.9μA, SC70-3, 30ppm/°C Drift VOLTAGE REFERENCE

REF3312, REF3318
REF3320, REF3325
REF3330, REF3333
SBOS392A – AUGUST 2007 – REVISED SEPTEMBER 2007
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TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C and V_IN = +5V. REF3325 is used for typical characteristic measurements, unless otherwise noted.
90
80
70
60
50
40
30
20
10
0
10
PSRR vs FREQUENCY
I_LOAD = 1mA
C_LOAD = 1mF
100
1k
10k
Frequency (Hz)
Figure 7.
100k
2.503
2.502
OUTPUT VOLTAGE vs LOAD CURRENT
V_S = 5V
2.501
2.500
+125°C
2.499
2.498
+25°C
2.497
2.496
-40°C
2.495
-5.0
-2.5
0
2.5
5.0
Load Current (mA)
Figure 9.
0.1Hz TO 10Hz NOISE
2.503
2.502
OUTPUT vs SUPPLY
I_LOAD = 0mA
2.501
2.500
+125°C
2.499
2.498
2.497
+25°C
-40°C
2.496
2.495
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Supply (V)
Figure 8.
STEP RESPONSE
C_L = 1μF STARTUP
V_IN
V_OUT
400ms/div
Figure 10.
LINE TRANSIENT
(C_L = 1μF, I_OUT = 0mA)
V_IN
V_OUT
1s/div
Figure 11.
100ms/div
Figure 12.
6
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