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PDF REF3233 Data sheet ( Hoja de datos )

Número de pieza REF3233
Descripción (REF3212 - REF3240) SOT23-6 SERIES VOLTAGE REFERENCE
Fabricantes Burr-Brown 
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No Preview Available ! REF3233 Hoja de datos, Descripción, Manual

REF3212, REF3220
REF3225, REF3230
REF3233, REF3240
SBVS058B −JUNE 2005 − REVISED FEBRUARY 2006
4ppm/°C, 100µA, SOT23-6
SERIES VOLTAGE REFERENCE
FEATURES
D EXCELLENT SPECIFIED DRIFT
PERFORMANCE:
7ppm/°C (max) at 0°C to +125°C
20ppm/°C (max) at −40°C to +125°C
D MICROSIZE PACKAGE: SOT23-6
D HIGH OUTPUT CURRENT: +10mA
D HIGH ACCURACY: 0.01%
D LOW QUIESCENT CURRENT: 100µA
D LOW DROPOUT: 5mV
APPLICATIONS
D PORTABLE EQUIPMENT
D DATA ACQUISITION SYSTEMS
D MEDICAL EQUIPMENT
D TEST EQUIPMENT
GND_F 1
GND_S 2
ENABLE 3
REF3212
REF3220
REF3225
REF3230
REF3233
REF3240
6 OUT_F
5 OUT_S
4 IN
DESCRIPTION
The REF32xx is a very low drift, micropower, low-dropout,
precision voltage reference family available in the tiny
SOT23-6 package.
The small size and low power consumption (120µA max)
of the REF32xx make it ideal for portable and
battery-powered applications. This reference is stable with
any capacitive load.
The REF32xx can be operated from a supply as low as
5mV above the output voltage, under no load conditions.
All models are specified for the wide temperature range of
−40°C to +125°C.
AVAILABLE OUTPUT VOLTAGES
PRODUCT
VOLTAGE
REF3212
1.25V
REF3220
2.048V
REF3225
2.5V
REF3230
3.0V
REF3233
3.3V
REF3240
4.096V
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright 2005−2006, Texas Instruments Incorporated
www.ti.com

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REF3233 pdf
www.ti.com
REF3212, REF3220
REF3225, REF3230
REF3233, REF3240
SBVS058B −JUNE 2005 − REVISED FEBRUARY 2006
TYPICAL CHARACTERISTICS
At TA = +25°C, ILOAD = 0mA, VIN = +5V power supply, REF3225 is used for typical characteristics, unless otherwise noted.
TEMPERATURE DRIFT
(0_C to +125_C)
TEMPERATURE DRIFT
(40_ C to +125_ C)
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
Drift (ppm/_C)
0.12
OUTPUT VOLTAGE ACCURACY
vs TEMPERATURE
0.08
0.04
0
0.04
0.08
0.12
50
25
0 +25 +50 +75
Temperature (_C)
+100 +125
130
120
110
100
90
80
70
50
25
QUIESCENT CURRENT
vs TEMPERATURE
0 +25 +50 +75
Temperature (_ C)
+100 +125
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Drift (ppm/_C)
160
140
120
100
80
60
40
20
0
15
10
DROPOUT VOLTAGE
vs LOAD CURRENT
5 0
5
Load Current (mA)
+125_C
+25_ C
40_C
10 15
100
90
80
70
60
50
40
30
20
10
1
POWER−SUPPLY REJECTION RATIO
vs FREQUENCY
10 100 1k 10k 100k
Frequency (Hz)
5

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REF3233 arduino
www.ti.com
VIN
0.1µF
ADS7822
VREF
VCC
+In
In
GND
CS
DOUT
DCLOCK
REF3212, REF3220
REF3225, REF3230
REF3233, REF3240
SBVS058B −JUNE 2005 − REVISED FEBRUARY 2006
5
+
1µF to 10µF
3.3V
VS
53
6 REF3233 4
21
GND
+
1µF to 10µF
Microcontroller
V+
0.47µF
Figure 6. Basic Data Acquisition System 1
2.5V
VIN
34
5
REF3212 6 VOUT = 1.25V
21
GND
0.1µF
0V to 1.25V
ADS8324
VREF
VCC
+In
In
GND
CS
DOUT
DCLOCK
2.5V Supply
5
VS
+
1µF to 10µF
Microcontroller
+
1µF to 10µF
Figure 7. Basic Data Acquisition System 2
1k
VIN
0.22µF
23
1 REF3240 4
+5V
56
VOUT = 4.096V
1k10
+5V
THS4031
500
5V
22µF
10
VREF
ADS8381
6800pF
0.1µF
1µF
Figure 8. REF3240 Provides an Accurate Reference for Driving the ADS8381
11

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