ISL28218

40V Precision Single Supply Rail-to-Rail Output Low Power Operational Amplifiers

Product Status: Mass Production

OVERVIEW

The ISL28118, ISL28218 are single and dual, low-power precision amplifiers optimized for single-supply applications. These devices feature a common mode input voltage range extending to 0.5V below the V- rail, a rail-to-rail differential input voltage range for use as a comparator and rail-to-rail output voltage swing, which makes them ideal for single-supply applications where input operation at ground is important.

These op amps feature low power, low offset voltage and low temperature drift, making them the ideal choice for applications requiring both high DC accuracy and AC performance. These amplifiers are designed to operate over a single supply range of 3V to 40V or a split supply voltage range of +1.8V/-1.2V to ±20V. The combination of precision and small footprint provides the user with outstanding value and flexibility relative to similar competitive parts.

Applications for these amplifiers include precision instrumentation, data acquisition, precision power supply controls and industrial controls.

Both parts are offered in 8 Ld SOIC and 8 Ld MSOP packages. All devices are offered in standard pin configurations and operate across the extended temperature range of -40°C to +125°C.

KEY FEATURES

  • Rail-to-rail output    <10mV
  • Below-ground (V-) input capability to -0.5V, ground sensing
  • Single-supply range 3V to 40V
  • Low current consumption 850µA
  • Low noise voltage 5.6nV/√Hz
  • Low noise current 355fA/√Hz
  • Low input offset voltage
    • ISL28118 150µV (max)
    • ISL28218 230µV (max)
  • Superb offset voltage temperature drift
    • ISL28118 1.2µV/°C (max)
    • ISL28218 1.4µV/°C (max)
  • Operating temperature range -40°C to +125°C
  • No phase reversal
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    APPLICATIONS

  • Precision instruments
  • Medical instrumentation
  • Data acquisition
  • Power supply control
  • Industrial process control

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL28218
Basic Information
Production Status
Mass Production
# of Devices/ Channels
2
Bandwidth (MHz)
4
Slew Rate (V/μs)
1.2
VS (min)
3 V
VS (max)
40 V
IS (per amp)
0.85 mA
Noise VN (nV/√Hz)
5.6
IBIAS
-230 nA
IBIAS (max)
-575 nA
Max Offset Voltage
0.23 mV
IOUT
16 mA
Rail-to-Rail Input
No
Rail-to-Rail Output
Yes
PSRR (dB)
124
CMRR (dB)
118
Thermal Shutdown
No
Gain Min
1
AVOL (dB)
136
Enable
No
Topology
VFA
Qualification Level
Standard
Can Sample
YES
Temperature Range
-40 to +125

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