EL8170

Micropower, Single Supply, Rail-to-Rail Input-Output Instrumentation Amplifier

Product Status: Mass Production

OVERVIEW

The EL8170 and EL8173 are micropower instrumentation amplifiers optimized for single supply operation over the +2.4V to +5.5V range. Inputs and outputs can operate rail-to-rail. As with all instrumentation amplifiers, a pair of inputs provide very high common-mode rejection and are completely independent from a pair of feedback terminals. The feedback terminals allow zero input to be translated to any output offset, including ground. A feedback divider controls the overall gain of the amplifier.

The EL8170 is compensated for a gain of 100 or more, and the EL8173 is compensated for a gain of 10 or more. The EL8170 and EL8173 have bipolar input devices for best offset and 1/f noise performance.

The amplifiers can be operated from one lithium cell or two Ni-Cd batteries. The EL8170 and EL8173 input range includes ground to slightly above positive rail. The output stage swings to ground and positive supply (no pull-up or pull-down resistors are needed).

KEY FEATURES

  • 95µA maximum supply current
  • Maximum offset voltage
  • 200µV (EL8170)
  • 1000µV (EL8173)
  • Maximum 3nA input bias current
  • 396kHz -3dB bandwidth (G = 10)
  • 192kHz -3dB bandwidth (G = 100)
  • Single supply operation
  • Input voltage range is rail-to-rail
  • Output swings rail-to-rail
  • Pb-Free (RoHS Compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
EL8170
Basic Information
Production Status
Mass Production
iSim Model
YES
# of Devices/ Channels
1
Bandwidth (MHz)
0.192
Slew Rate (V/μs)
0.55
VS (min)
2.4 V
VS (max)
5.5 V
IS (per amp)
0.095 mA
Noise VN (nV/√Hz)
58
IBIAS
0.7 nA
Max Offset Voltage
0.2 mV
IOUT
26 mA
VOUT (V)
4.99
Rail-to-Rail Input
Yes
Rail-to-Rail Output
Yes
PSRR (dB)
104
CMRR (dB)
114
Gain Min
100
Enable
No
Gain Error/Measurment Error Max
0.35
Qualification Level
Standard
Can Sample
YES
Temperature Range
-40 to +125

Below you will find information to support the development of your application.

You can find an explanation of orderable part numbers here.

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Hardware Design Support

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