High Speed FET-Input Instrumentation Amplifier
Product details
Parameters
Package | Pins | Size
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
Description
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.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | High Speed FET-Input Instrumentation Amplifier datasheet | Sep. 27, 2000 |
Technical articles | What is an instrumentation amplifier? | Aug. 09, 2019 | |
E-book | The Signal e-book: A compendium of blog posts on op amp design topics | Mar. 28, 2017 | |
Technical articles | How to layout a PCB for an instrumentation amplifier | Oct. 14, 2016 | |
Technical articles | Dealing with rejection: Instrumentation amplifier PSRR and CMRR (Part I) | Nov. 25, 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Features
- Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Noise calculations
- Common unit translation
- Solves common amplifier circuit design problems
- Gain selections using standard resistors
- Filter configurations
- Total noise for common amplifier configurations
- (...)
The Common-Mode Input Range Calculator is pre-loaded (...)
Features
- Preloaded with 20 of TI’s most popular instrumentation amplifier specifications
- Customizable supply, gain, and voltage reference options
- Calculator displays output limitations graphically and numerically
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
PDIP (P) | 8 | View options |
SOIC (DW) | 16 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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