DATASHEET
ISL21080
300nA NanoPower Voltage References
FN6934
Rev.7.00
Sep 28, 2018
The ISL21080 analog voltage references feature low supply
voltage operation at ultra-low 310nA typical, 1.5µA maximum
operating current. Additionally, the ISL21080 family features
ensured initial accuracy as low as ±0.2% and 50ppm/°C
temperature coefficient.
Features
• Reference output voltage . . . . . . . . 0.900V, 1.024V, 1.250V,
1.500V, 2.048V, 2.500V, 3.000V, 3.300V, 4.096V, 5.000V
• Initial accuracy:
These references are ideal for general purpose portable
applications to extend battery life at lower cost. The ISL21080
is provided in the industry standard 3 Ld SOT-23 pinout.
- ISL21080-09 and -10 . . . . . . . . . . . . . . . . . . . . . . . . . ±0.7%
- ISL21080-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.6%
- ISL21080-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.5%
- ISL21080-20 and -25 . . . . . . . . . . . . . . . . . . . . . . . . . ±0.3%
- ISL21080-30, -33, -41, and -50 . . . . . . . . . . . . . . . . . ±0.2%
The ISL21080 output voltages can be used as precision
voltage sources for voltage monitors, control loops, standby
voltages for low power states for DSP, FPGA, Datapath
Controllers, microcontrollers, and other core voltages: 0.9V,
1.024V, 1.25V, 1.5V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V, and
5.0V.
• Input voltage range:
- ISL21080-09 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0V to 5.5V
- ISL21080-10, -12, -15, -20 and -25. . . . . . . . . 2.7V to 5.5V
- ISL21080-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2V to 5.5V
- ISL21080-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5V to 5.5V
- ISL21080-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V to 8.0V
- ISL21080-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V to 8.0V
Special Note: Post-assembly X-ray inspection may lead to permanent
changes in device output voltage and should be minimized or
avoided. For further information, see “Applications Information” on
page 15 and AN1533, “X-Ray Effects on Intersil FGA References”.
Applications
• Output voltage noise . . . . . . . . . . . . .30µV (0.1Hz to 10Hz)
P-P
• Energy harvesting applications
• Wireless sensor network applications
• Supply current . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5µA (max)
• Tempco . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50ppm/°C
• Output current capability . . . . . . . . . . . . . . . . . . . . . . . . ±7mA
• Operating temperature range. . . . . . . . . . . . . -40°C to +85°C
• Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Ld SOT-23
• Pb-Free (RoHS compliant)
• Low power voltage sources for controllers, FPGA, ASICs, or
logic devices
• Battery management/monitoring
• Low power standby voltages
• Portable Instrumentation
• Consumer/medical electronics
• Wearable electronics
Related Literature
• Lower cost industrial and instrumentation
• Power regulation circuits
For a full list of related documents, visit our website:
• ISL21080 family product page
• Control loops and compensation networks
• LED/diode supply
500
400
300
200
100
0
UNIT 1
UNIT 2
UNIT 3
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
(V)
V
IN
FIGURE 1. I vs V , THREE UNITS
IN IN
FN6934 Rev.7.00
Sep 28, 2018
Page 1 of 23
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