REF3012 Datasheet, PDF (1/26 Pages) Texas Instruments – 50ppm/C Max, 50UA in SOT23-3 CMOS VOLTAGE REFERENCE

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REF3012, REF3020, REF3025, REF3030, REF3033, REF3040
SBVS032G – MARCH 2002 – REVISED NOVEMBER 2015
REF30xx 50-ppm/°C Max, 50-μA, CMOS Voltage Reference in SOT-23-3
1 Features
•1 microSize Package: SOT-23-3
• Low Dropout: 1 mV
• High Output Current: 25 mA
• High Accuracy: 0.2%
• Low I_Q: 42 µA (typ)
• Excellent Specified Drift Performance:
– 50 ppm/°C (max) from 0°C to 70°C
– 75 ppm/°C (max) from –40°C to +125°C
2 Applications
• Temperature and Pressure Transmitters
• Portable, Battery-powered Equipment
• Data Acquisition Systems
• Medical Equipment
• Handheld Test Equipment
3 Description
The REF30xx is a precision, low-power, low dropout
voltage, reference family available in a tiny SOT-23-3
package. The REF30xx offers excellent temperature
drift and initial accuracy while operating at a
quiescent current of 42 µA (typ).
The low power consumption and the relatively high
precision make the REF30xx very attractive for loop-
powered industrial applications such as pressure and
temperature transmitter applications. The REF30xx is
easy to use in intrinsically safe and explosion-proof
applications because it does not require a load
capacitor to be stable. The REF30xx is specified over
the extended industrial temperature range of –40°C
to +125°C.
The REF30xx operates with supplies within 1 mV of
output voltage under zero-load conditions. The low
dropout along with small size and low power
consumption make The REF30xx ideal for portable
and battery-powered applications.
PART NUMBER
REF30xx
Device Information
PACKAGE
BODY SIZE (NOM)
SOT-23 (3)
2.92 mm × 1.30 mm
Typical Application
3.3 V
REF3033
V+
GND
5Ω
+ _{1 μF to}
10 μF
V_REF
V_CC
0.1 μF
ADS7822
V_S
+
1 μF to 10 μF
V_IN
+In
CS
–In
D_OUT
GND DCLOCK
Microcontroller
Dropout Voltage vs Load Current
350
300
250
200
150
100
50
0
0
5
10
15
20
25
30
Load Current (mA)
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.