Device Information
 
 
ISL28273 Printer Friendly Version
Dual Channel Micro-power, Single Supply, Rail-to-Rail Input and Output (RRIO) Instrumentation Amplifier
 
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Datasheet
Adobe Acrobat Document ISL28273
Dual and Quad Channel Micropower, Single Supply, Rail-to-Rail Input and Output (RRIO) Instrumentation Amplifiers
BW (MHz).24
SR (V/μs).6
VS (min) (V)2.4
VS (max) (V)5.5
IS (per amp) (mA).078
Noise VN (nV/√Hz)210
IBIAS (μA).001
VOS (max) (mV).6
# of Devices/ Channels2
IOUT (mA)29
VOUT (V)4.99
Rail-to-Rail InputY
Rail-to-Rail OutputY
PSRR (dB)95
CMRR (dB)110
Thermal ShutdownN
Gain AV (min)10
EnableN
 

Product Information

Key Features
  • 150μV Max Offset Voltage (ISL28270, ISL28470)
  • 600μV Max Offset Voltage (ISL28273)
  • 2.5nA Max Input Bias Current (ISL28270, ISL28470)
  • 110dB CMRR
  • 0.7μV/°C Offset Voltage Temperature Co-efficient
  • 240kHz -3dB Bandwidth (G = 100) ISL28270, ISL28470
  • 230kHz -3dB Bandwidth (G = 10) ISL28273
  • Single Supply Operation
  • Rail-to-Rail Input and Output (RRIO)
  • Pb-Free (RoHS Compliant)
Description

The ISL28270 and ISL28273 are dual channel micropower instrumentation amplifiers (in-amps) and the ISL28470 is a quad channel in-amp optimized for single supply operation over the +2.4V to +5.5V range.

All three devices feature an Input Range Enhancement Circuit (IREC) which maintains CMRR performance for input voltages equal to the positive supply and down to 50mV above the negative supply rail. The input signal is capable of swinging above the positive supply rail and to 10mV above the negative supply with only a slight degradation of the CMRR performance. The output operation is rail-to-rail.

The ISL28273 is compensated for a minimum gain of 10 or more. For higher gain applications, the ISL28270 and ISL28470 are compensated for a minimum gain of 100. The in-amps have bipolar input devices for best offset and excellent 1/f noise performance. The amplifiers can be operated from one lithium cell or two Ni-Cd batteries.

Pricing / Packaging / Samples / Ordering

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Part No.Design-In
Status		Temp.PackageMSLPrice
US $		PB Free
ISL28273FAZ Active Full-Range Ind 16 Ld QSOP 3 1.84 PB Free Buy Direct Disti-Buy Sample
ISL28273FAZ-T7 Active Full-Range Ind 16 Ld QSOP T+R 3 1.84 PB Free Disti-Buy  
ISL28273INEVAL1Z Active   Eval Board N/A Contact Us PB Free Buy Direct Disti-Buy  
The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice.
MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020
SMD = Standard Microcircuit Drawing

Technical Documentation

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Application Block Diagrams
Applications
  • Battery or Solar-Powered Systems
  • Strain Gauge
  • Sensor Signal Conditioning
  • Medical Devices
  • Industrial Instrumentations
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