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FN6934
Rev.5.00
Jun 23, 2014
ISL21080
300nA NanoPower Voltage References
DATASHEET
FN6934 Rev.5.00 Page 1 of 21
Jun 23, 2014
The ISL21080 analog voltage references feature low supply
voltage operation at ultra-low 310nA typ, 1.5µA max operating
current. Additionally, the ISL21080 family features guaranteed
initial accuracy as low as ±0.2% and 50ppm/°C temperature
coefficient.
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.
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.
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, please see “Applications
Information” on page 14 and AN1533
, “X-Ray Effects on Intersil FGA
References”.
Applications
• Energy harvesting applications
• Wireless sensor network applications
• 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
• Lower cost industrial and instrumentation
• Power regulation circuits
• Control loops and compensation networks
• LED/diode supply
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:
- 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%
• 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
• Output voltage noise . . . . . . . . . . . . .30µV
P-P
(0.1Hz to 10Hz)
• 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)
Related Literature
• See AN1494, “Reflow and PC Board Assembly Effects on
Intersil FGA References”
• See AN1533
, “X-Ray Effects on Intersil FGA References”
• See AN1761
, “ISL21080XXEV1Z User’s Guide”
FIGURE 1. I
IN
vs V
IN
, 3 UNITS
0
100
200
300
400
500
V
IN
(V)
I
N
(nA)
UNIT 1
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
UNIT 2
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