Device Information
 
 
ISL28148 Printer Friendly Version
 
4.5MHz, Single Precision Rail-to-Rail Input-Output (RRIO) Op Amps with Very Low Input Bias Current
 
Datasheets,
Related Docs
& Simulations		DescriptionKey
Features		Parametric
Data		Application
Diagrams		Related
Devices
 
 
Ordering Information
Green/Pb(Lead free) Device  Available in RoHS/Pb-Free
 Buy direct from Intersil  Check distributor inventory  Request samples
Part No. Design-In
Status		 Temp. Package MSL Price
US $		 PB Free
ISL28148EVAL1Z Active   Eval Board N/A Contact Us PB Free iBuy Disti-Buy  
ISL28148FHZ-T7 Active Full-Range Ind 6 Ld SOT-23 T+R 2 0.58 PB Free iBuy Disti-Buy  
ISL28148FHZ-T7A Active Full-Range Ind 6 Ld SOT-23 T+R 2 0.58 PB Free iBuy Disti-Buy  
ISL28148FIZ-T7 Active Full-Range Ind 6 Ld WLCSP T+R 1 0.84 PB Free iBuy 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
 
  Description

The ISL28148, ISL28248 and ISL28448 are 4.5MHz low-power single, dual and quad operational amplifiers. The parts are optimized for single supply operation from 2.4V to 5.5V, allowing operation from one lithium cell or two Ni-Cd batteries.

The single, dual and quad feature an Input Range Enhancement Circuit (IREC) which enables them to maintain CMRR performance for input voltages greater than the positive supply. The input signal is capable of swinging 0.25V above the positive supply and to 100mV below the negative supply with only a slight degradation of the CMRR performance. The output operation is rail-to-rail.

The parts draw minimal supply current (900μA per amplifier) while meeting excellent DC accuracy, AC performance, noise and output drive specifications. The ISL28148 features an enable pin that can be used to turn the device off and reduce the supply current to a maximum of 16μA. Operation is guaranteed over -40°C to +125°C temperature range.

 
  Key Features
 
  • 4.5MHz gain bandwidth product
  • 900μA supply current (per amplifier)
  • 1.8mV maximum offset voltage
  • 1pA typical input bias current
  • Down to 2.4V single supply operation
  • Rail-to-rail input and output
  • Enable pin (ISL28148 SOT-23 package only)
  • -40°C to +125°C operation
  • Pb-free (RoHS compliant)
Related Documentation
 
Datasheet(s)   Datasheet(s):
 
Evaluation Board(s)   Evaluation Board(s):
 
Technical Homepage   Technical Homepage:
 
 
  Parametric Data
BW (MHz)4.5
SR (V/μs)4
VS (min) (V)2.4
VS (max) (V)5.5
IS (per amp) (mA)1.1
Noise VN (nV/√Hz)28
IBIAS (μA).000001
VOS (max) (mV)1.8
# of Devices/ Channels1
IOUT (mA)75
VOUT (V)4.99
Rail-to-Rail InputY
Rail-to-Rail OutputY
PSRR (dB)98
CMRR (dB)98
Thermal ShutdownN
Gain AV (min)1
AVOL or AZOL (dB or V/mV)580
EnableY
 
  Application Block Diagrams
 
 
 
Applications
 
  • Low-end audio
  • 4mA to 20mA current loops
  • Medical devices
  • Sensor amplifiers
  • ADC buffers
  • DAC output amplifiers
 
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