25μA Micropower Voltage References
ISL21070
Features
The ISL21070 voltage references are analog voltage
references featuring low supply voltage operation at ultra-low
25μA max operating current.
• Reference Output Voltage
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.600V, 2.048V, 2.500V
• Initial Accuracy: 0.600V. . . . . . . . . . . . . . . . . . . . . . . . . . ±1.0%
• Initial Accuracy: 2.048V. . . . . . . . . . . . . . . . . . . . . . . . .±0.25%
Additionally, the ISL21070 family features guaranteed initial
accuracy as low as ±0.2% and 30ppm/°C temperature
coefficient.
• Initial Accuracy: 2.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . ..±0.2%
• Input Voltage Range
- ISL21070-06 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
- ISL21070-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
- ISL21070-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
These references are ideal for general purpose applications for
performance at lower cost. The ISL21070 is provided in an
industry standard 3 Ld SOT-23 pinout.
The ISL21070 offers output voltages that can be used as
precision voltage sources for control loops, standby voltages
for low power states for DSP, FPGA, Data path Controllers,
Microcontrollers and other core voltages: 0.600V, 2.048V, and
2.5V.
• Output Voltage Noise. . . . . . . . . . . . .30μVP-P (0.1Hz to 10Hz)
• Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25μA (Max)
• Tempco (0.600V only) . . . . . . . . . . . . . . . . . . . . . . . 50ppm/°C
• Tempco (all others) . . . . . . . . . . . . . . . . . . . . . . . . . 30ppm/°C
• Output Current Capability . . . . . . . . . . . . . . . . . . . . . . . ±10mA
• Operating Temperature Range. . . . . . . . . . . .-40°C to +85°C
• Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Ld SOT-23
• Pb-Free (RoHS compliant)
Applications*(see page 10)
• Battery Management/Monitoring
• Low Power Standby Voltages
• Portable Instrumentation
Related Literature*(see page 10)
• Consumer/Medical Electronics
• Wearable Electronics
• AN1533, “X-Ray Effects on Intersil FGA References”
• AN1494, “Reflow and PC Board Assembly Effects on Intersil
FGA References”
• Lower Cost Industrial and Instrumentation
• Power Regulation Circuits
• Control Loops and Compensation Networks
• LED/Diode Supply
2.5020
2.5015
TYP
2.5010
2.5005
2.5000
2.4995
LOW
HIGH
2.4990
-40 -30 -20 -10
0
10 20 30 40 50 60 70 80
TEMPERATURE (°C)
FIGURE 1. V
vs TEMPERATURE NORMALIZED to +25°C
OUT
July 1, 2011
FN7599.2
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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