INA333
- Low Offset Voltage: 25 µV (Maximum), G ≥ 100
- Low Drift: 0.1 µV/°C, G ≥ 100
- Low Noise: 50 nV/√Hz, G ≥ 100
- High CMRR: 100 dB (Minimum), G ≥ 10
- Low Input Bias Current: 200 pA (Maximum)
- 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+) –0.05 V
- Low Quiescent Current: 50 µA
- Operating Temperature: –40°C to +125°C
- RFI Filtered Inputs
- 8-Pin VSSOP and 8-Pin WSON Packages
The INA333 device is a low-power, precision instrumentation amplifier offering excellent accuracy. The versatile 3-operational amplifier 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 + (100 kΩ / RG).
The INA333 device provides very low offset voltage (25 µV, G ≥ 100), excellent offset voltage drift (0.1 µV/°C, G ≥ 100), and high common-mode rejection (100 dB at G ≥ 10). It operates with power supplies as low as 1.8 V (±0.9 V) and quiescent current is only 50 µA, making it ideal for battery-operated systems. Using autocalibration techniques to ensure excellent precision over the extended industrial temperature range, the INA333 device also offers exceptionally low noise density (50 nV/√Hz) that extends down to DC.
The INA333 device is available in both 8-pin VSSOP and WSON surface-mount packages and is specified over the TA = 40°C to +125°C temperature range.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
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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-010065 — High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design
TIDA-00440 — Leakage Current Measurement Reference Design for Determining Insulation Resistance
TIDA-01214 — Isolated, High-Accuracy Analog Input Module Reference Design Using 16-Bit ADC and Digital Isolator
TIPD170 — Single-Supply Strain Gauge in a Bridge Configuration Reference Design
TIPD166 — Single Supply Analog Input Module Reference Design with 16-Bit, 8-Channel ADC for PLC
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VSSOP (DGK) | 8 | Ultra Librarian |
WSON (DRG) | 8 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
Support & training
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