INA333-HT
- Low Offset Voltage: 25 μV (max at 25°C), G ≥ 100
- Low Drift: 0.2 µV/°C, G ≥ 1000
- Low Noise: 55 nV/√Hz, G ≥ 100
- High CMRR: 100 dB (min at 25°C), G ≥ 10
- Supply Range: +1.8 V to +5.5 V
- Input Voltage: (V–) +0.1 V to (V+) –0.1 V
- Output Range: (V–) +0.05 V to (V+) –0.05V
- Low Quiescent Current: 198 µA
- RFI Filtered Inputs
The INA333 is a low-power, precision instrumentation amplifier offering excellent accuracy. The versatile 3-op amp design, small size, and low power make it ideal for a wide range of portable applications.
A single external resistor sets any gain from 1 to 1000. The INA333 is designed to use an industry-standard gain equation: G = 1 + (100kΩ/RG).
The INA333 provides very low offset voltage (25 µV at 25°C, G ≥ 100), excellent offset voltage drift (0.2 µV/°C, G ≥ 100), and high common-mode rejection (100 dB at 25°C, G ≥ 10). It operates with power supplies as low as 1.8 V (±0.9V), and quiescent current is only 50 µA—ideal for battery-operated systems. Using autocalibration techniques to ensure excellent precision over the extended industrial temperature range, the INA333 also offers exceptionally low noise density (55 nV/√Hz) that extends down to dc.
The INA333 is is specified over the TA = –55°C to +210°C temperature range.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | Micro-Power, Zerø-Drift, Rail-to-Rail Out datasheet (Rev. C) | 22 Oct 2013 | |
* | Radiation & reliability report | INA333SHKJ Reliability Report | 07 May 2012 | |
* | Radiation & reliability report | INA333SHKQ Reliability Report | 07 May 2012 | |
* | Radiation & reliability report | INA333SJD Reliability Report | 07 May 2012 | |
Application note | Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps | PDF | HTML | 27 Jul 2021 | |
E-book | The Signal e-book: A compendium of blog posts on op amp design topics | 28 Mar 2017 | ||
EVM User's guide | Harsh Environment Acquisition Terminal (H.E.A.T.) System Evaluation Kit (Rev. D) | 24 Jul 2015 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
INA333 TINA-TI Reference Design (Rev. F)
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
Supported products & hardware
Products
Precision op amps (Vos<1mV)
General-purpose op amps
Audio op amps
Transimpedance amplifiers
High-speed op amps (GBW ≥ 50 MHz)
Power op amps
Video amplifiers
Line drivers
Transconductance amplifiers & laser drivers
Fully differential amplifiers
Precision ADCs
Biosensing AFEs
High-speed ADCs (≥10 MSPS)
Receivers
Touchscreen controllers
Difference amplifiers
Instrumentation amplifiers
Audio line receivers
Analog current-sense amplifiers
Digital power monitors
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors with integrated shunt resistor
Die & wafer services
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
TIDA-00002 — Harsh Environment Acquisition Terminal (HEAT) EVM Platform for High Temperature Applications
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
B0QFN (JD) | 8 | Ultra Librarian |
CFP (HKJ) | 8 | Ultra Librarian |
CFP (HKQ) | 8 | Ultra Librarian |
DIESALE (KGD) | — |
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