INA111:High Speed FET-Input Instrumentation Amplifier

The INA111 is a high speed, FET-input instrumentation amplifier offering excellent performance.

The INA111 uses a current-feedback topology providing extended bandwidth (2MHz at G = 10) and fast settling time (4us to 0.01% at G = 100). A single external resistor sets any gain from 1 to over 1000.

Offset voltage and drift are laser trimmed for excellent DC accuracy. The INA111's FET inputs reduce input bias current to under 20pA, simplifying input filtering and limiting circuitry.

The INA111 is available in 8-pin plastic DIP, and SOL-16 surface-mount packages, specified for the -40°C to +85°C temperature range.

Features
  • FET INPUT: IB = 20pA max
  • HIGH SPEED: TS = 4us (G = 100, 0.01%)
  • LOW OFFSET VOLTAGE: 500uV max
  • LOW OFFSET VOLTAGE DRIFT: 5uV/°C max
  • HIGH COMMON-MODE REJECTION: 106dB min
  • 8-PIN PLASTIC DIP, SOL-16 SOIC
  • APPLICATIONS
    • MEDICAL INSTRUMENTATION
    • DATA ACQUISITION
  • MEDICAL INSTRUMENTATION
  • DATA ACQUISITION
Parametrics
keyINA111
Number of Channels (#)1
Vs (Min) (V)12
Vs (Max) (V)36
CMRR (Min) (dB)106
Input Offset (+/-) (Max) (uV)500
Input Offset Drift (+/-) (Max) (uV/C)5
Input Bias Current (+/-) (Max) (nA)0.02
Noise at 1kHz (Typ) (nV/rt(Hz))10
Iq (Typ) (mA)3.3
Bandwidth at Min Gain (Typ) (MHz)2
Gain (Min) (V/V)1
Gain (Max) (V/V)1000
Gain Error (+/-) (Max) (%)2
RatingCatalog
Operating Temperature Range (C)-40 to 85
Package GroupPDIP SOIC
Approx. Price (US$)4.80 | 1ku
Package Size: mm2:W x L (PKG)See datasheet (PDIP)
Noise at 0.1 Hz - 10 Hz (Typ) (uVpp)1
Gain Non-Linearity (+/-) (Max) (%)0.005
Datasheet?(1)
TitleTypeSize (KB)Date
High Speed FET-Input Instrumentation AmplifierPDF75227 Sep 2000
Selection & solution guides?(1)
TitleTypeSize (KB)Date
Analog Signal Chain Guide (Rev. B)PDF600011 Jul 2013
Models?(3)
TitleTypeSize (KB)Date
INA111 PSpice Model (Rev. A)ZIP34?KB21 Sep 2011
INA111 TINA-TI Reference Design (Rev. B)TSC99?KB21 Sep 2011
INA111 TINA-TI Spice Model (Rev. A)ZIP5?KB21 Sep 2011
Software?(1)
Development tools?(2)
NamePart#Type
Calculate Input Common-Mode Range of Instrumentation AmplifiersINA-CMV-CALCCalculation Tools
SPICE-Based Analog Simulation ProgramTINA-TICircuit Design & Simulation
Ordering Information
Part #Preproduction / Production MaterialStatusTemp(oC)Price | QTYPackage | PinsDevice MarkingPackage QTY | Carrier
INA111APProductionACTIVE5.52 | 1kuPDIP?(P)INA111AP50 | TUBE
INA111APG4ProductionACTIVE5.52 | 1kuPDIP?(P)INA111AP50 | TUBE
INA111AUProductionACTIVE-40 to 855.80 | 1kuSOIC?(DW)INA111AU40 | TUBE
INA111AU/1KProductionACTIVE-40 to 854.80 | 1kuSOIC?(DW)INA111AU1000 | LARGE T&R
INA111AU/1KE4ProductionACTIVE-40 to 854.80 | 1kuSOIC?(DW)INA111AU1000 | LARGE T&R
INA111AU/1KG4ProductionACTIVE-40 to 854.80 | 1kuSOIC?(DW)INA111AU1000 | LARGE T&R
INA111AUE4ProductionACTIVE-40 to 855.80 | 1kuSOIC?(DW)INA111AU40 | TUBE
INA111BPProductionACTIVE8.42 | 1kuPDIP?(P)INA111BP50 | TUBE
INA111BPG4ProductionACTIVE8.42 | 1kuPDIP?(P)INA111BP50 | TUBE
INA111BUProductionACTIVE7.70 | 1kuSOIC?(DW)INA111BU40 | TUBE
INA111BUE4ProductionACTIVE7.70 | 1kuSOIC?(DW)INA111BU40 | TUBE
High Speed FET-Input Instrumentation Amplifier INA111
所选封装材料的热学和电学性质 DCP010505B
模拟信号链路产品指南 (Rev. B) BQ24392
INA111 PSpice Model INA111
INA111 TINA-TI Reference Design INA111
INA111 TINA-TI Spice Model INA111
INA111
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