ISL21090B75

Ultra Low Noise, Precision Voltage Reference

OVERVIEW

The ISL21090 is a ultra low noise, high DC accuracy precision voltage reference with wide input voltage range. The ISL21090 uses the new Intersil Advanced Bipolar technology to achieve sub 1.0µVP-P (1.25V option) 0.1Hz to 10Hz noise with an initial voltage accuracy of 0.02% (2.5V option).

The ISL21090 offers 1.25V, 2.5V, 5.0V and 7.5V output voltage options with 7ppm/°C temperature coefficient and also provides excellent line and load regulation. These devices are offered in an 8 Ld SOIC package.

The ISL21090 is ideal for high-end instrumentation, data acquisition and processing applications requiring high DC precision where low noise performance is critical.

KEY FEATURES

  • Reference output voltage option
  • 1.25V, 2.5V, 5.0V and 7.5V
  • Initial accuracy:
  • ISL21090-12: ±0.03%
  • ISL21090-25: ±0.02%
  • ISL21090-50: ±0.025%
  • ISL21090-75: ±0.035%
  • Output voltage noise (0.1Hz to 10Hz): 1.0µVP-P typ (1.25V option)
  • Supply current : 750µA (1.25V option)
  • Temperature coefficient: 7ppm/°C max
  • Output current capability: 20mA
  • Line regulation: 6ppm/V (1.25V option)
  • Load regulation: 2.5ppm/mA (1.25V option)
  • Operating temperature range: -40°C to +125°C

PARAMETRICS

Parameters
ISL21090B75
Basic Information
Production Status
Mass Production
VOUT (V)
7.5
Temperature Coefficient
7 ppm/°C
IS (max)
1.30 mA
VS (min)
9 V
VS (max)
36 V
Min Operating Temperature
-40 °C
Max Operating Temperature
125 °C
LTD Stability (ppm)
20
Initial Accuracy (% Vout)
0.035
Output Noise (typ)
6.2 µVPP
Technology
Bipolar
ISOURCE (max) (mA)
20
ISINK (max) (mA)
10
Low Frequency Noise
6.2 µVPP
Qualification Level
Standard
Supply Voltage Vs Range (V)
9 to 36
Initial Accuracy (mV)
.263 mV
Temperature Range
-40 to +125

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