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DATASHEET
Micropower Voltage Reference
ISL21010
The ISL21010 is a precision, low dropout micropower bandgap
voltage reference in a space-saving SOT-23 package. It
operates from a single 2.2V to 5.5V supply (minimum voltage
is dependent on voltage option) and provides a ±0.2%
accurate reference. The ISL21010 provides up to 25mA output
current sourcing with low 150mV dropout voltage.
Output voltage options include 1.024V, 1.2V, 1.5V, 2.048V,
2.5V, 3.0V, 3.3V and 4.096V. The low supply current and low
dropout voltage combined with high accuracy make the
ISL21010 ideal for precision battery powered applications.
Applications
• Battery management/monitoring
• Low power standby voltages
• Portable instrumentation
• Consumer/medical electronics
• Lower cost industrial and instrumentation
• Power regulation circuits
• Control loops and compensation networks
• LED/diode supply
Features
• Reference output voltages . . . . . . . . . . . 1.024V, 1.25V, 1.5V,
2.048V, 2.5V, 3.0V, 3.3V, 4.096V
• Precision 0.2% initial accuracy
• Input voltage range:
- ISL21010-10, -12, -15 -20 . . . . . . . . . . . . . . . . 2.2V to 5.5V
- ISL21010-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.6V to 5.5V
- ISL21010-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1V to 5.5V
- ISL21010-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4V to 5.5V
- ISL21010-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2V to 5.5V
• Output current source capability . . . . . . . . . . . . . . . . . . 25mA
• Operating temperature range. . . . . . . . . . . .-40°C to +125°C
• Output voltage noise (V
OUT
= 2.048V) . . . . . . . . . . . . . . 58µV
P-P
(0.1Hz to 10Hz)
• Supply current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48µA (typ)
• Tempco . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50ppm/°C
• Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Ld SOT-23
• Pb-free (RoHS compliant)
Related Literature
AN1819, “ISL21010XXEV1Z User Guide”
AN1883
, “Low-Side Low Cost Current Sense Amplifier”
FIGURE 1. TYPICAL APPLICATION DIAGRAM
Cb
1µF
Cl
+5.0V
SIGNAL INPUT
0V TO 5V
+5.0V
+5.0V
ISL28134
R
1
C
1
4.7nF
ADC
+AIN1
-AIN1 GND
VDDVREF
VIN VOUT
GND
ISL21010
50Ω
0.1µF TO 10µF
February 12, 2016
FN7896.4
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|Copyright Intersil Americas LLC 2011, 2014-2016. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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