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FN7896 Rev 4.00 Page 1 of 35
February 12, 2016
FN7896
Rev 4.00
February 12, 2016
ISL21010
Micropower Voltage Reference
DATASHEET
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
Verzeichnis
- ・ Konfiguration des Pinbelegungsdiagramms on Seite 3
- ・ Abmessungen des Paketumrisses on Seite 35
- ・ Teilenummerierungssystem on Seite 3
- ・ Markierungsinformationen on Seite 3
- ・ Typisches Anwendungsschaltbild on Seite 33
- ・ Technische Daten on Seite 5 Seite 6 Seite 7 Seite 8
- ・ Anwendungsbereich on Seite 33
- ・ Elektrische Spezifikation on Seite 5 Seite 6 Seite 7 Seite 8 Seite 9
