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350
300
250
200
150
100
50
0
Dropout Voltage (mV)
0 5 10 15 20 25 30
Load Current (mA)
5 Ω
ADS7822
V
CC
CS
D
OUT
DCLOCK
V
REF
+In
–In
GND
+
+
1 F to 10 Fμ μ
1 F toμ
10 Fμ
3.3 V
0.1 Fμ
V
IN
V+
V
S
Microcontroller
REF3033
GND
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Reference
Design
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 3 Description
The REF30xx is a precision, low-power, low dropout
1
• microSize Package: SOT-23-3
voltage, reference family available in a tiny SOT-23-3
• Low Dropout: 1 mV
package. The REF30xx offers excellent temperature
• High Output Current: 25 mA
drift and initial accuracy while operating at a
quiescent current of 42 µA (typ).
• High Accuracy: 0.2%
• Low I
Q
: 42 µA (typ)
The low power consumption and the relatively high
precision make the REF30xx very attractive for loop-
• Excellent Specified Drift Performance:
powered industrial applications such as pressure and
– 50 ppm/°C (max) from 0°C to 70°C
temperature transmitter applications. The REF30xx is
– 75 ppm/°C (max) from –40°C to +125°C
easy to use in intrinsically safe and explosion-proof
applications because it does not require a load
2 Applications
capacitor to be stable. The REF30xx is specified over
the extended industrial temperature range of –40°C
• Temperature and Pressure Transmitters
to +125°C.
• Portable, Battery-powered Equipment
The REF30xx operates with supplies within 1 mV of
• Data Acquisition Systems
output voltage under zero-load conditions. The low
• Medical Equipment
dropout along with small size and low power
consumption make The REF30xx ideal for portable
• Handheld Test Equipment
and battery-powered applications.
Device Information
PART NUMBER PACKAGE BODY SIZE (NOM)
REF30xx SOT-23 (3) 2.92 mm × 1.30 mm
Typical Application Dropout Voltage vs Load Current
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.
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