Micropower Voltage Reference
ISL21010
Features
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.
• 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 (Coming Soon) . . . . . . 2.2V to 5.5V
- ISL21010-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2V to 5.5V
- ISL21010-25 (Coming Soon) . . . . . . . . . . . . . . 2.6V to 5.5V
- ISL21010-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1V to 5.5V
- ISL21010-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4V to 5.5V
- ISL21010-40 (Coming Soon) . . . . . . . . . . . . . . 4.2V to 5.5V
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.
• Output Current Source Capability . . . . . . . . . . . . . . . . . 25mA
• Operating Temperature Range. . . . . . . . . . .-40°C to +125°C
Applications
• Battery Management/Monitoring
• Low Power Standby Voltages
• Portable Instrumentation
• 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)
• Consumer/Medical Electronics
• Lower Cost Industrial and Instrumentation
• Power Regulation Circuits
• Control Loops and Compensation Networks
• LED/Diode Supply
ISL21010
VIN
VOUT
+5.0V
Cb
1µF
Cl
0.1µF - 10µF
GND
+5.0V
+5.0V
R1
50Ω
SIGNAL INPUT
0 – 5V
+AIN1
-AIN1
VREF
VDD
GND
ISL28134
C1
4.7nF
ADC
FIGURE 1. TYPICAL APPLICATION DIAGRAM
August 9, 2011
FN7896.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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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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