OPA333
- Low Offset Voltage: 10 µV (Maximum)
- Zero Drift: 0.05 µV/°C (Maximum)
- 0.01-Hz to 10-Hz Noise: 1.1 µVPP
- Quiescent Current: 17 µA
- Single-Supply Operation
- Supply Voltage: 1.8 V to 5.5V
- Rail-to-Rail Input/Output
- microSize Packages: SC70 and SOT23
The OPAx333 series of CMOS operational amplifiers use a proprietary auto-calibration technique to simultaneously provide very low offset voltage (10 µV, maximum) and near-zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high-impedance inputs that have a common-mode range 100 mV beyond the rails, and rail-to-rail output that swings within 50 mV of the rails. Single or dual supplies as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V) can be used. These devices are optimized for low-voltage, single-supply operation.
The OPAx333 family offers excellent CMRR without the crossover associated with traditional complementary input stages. This design results in superior performance for driving analog-to-digital converters (ADCs) without degradation of differential linearity.
The OPA333 (single version) is available in the 5-pin SOT-23, SOT, and 8-pin SOIC packages, while the OPA2333 (dual version) is available in the 8-pin VSON, SOIC, and VSSOP packages. All versions are specified for operation from 40°C to 125°C.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
AMP-PDK-EVM — Amplifier performance development kit evaluation module
The amplifier performance development kit (PDK) is an evaluation module (EVM) kit to test common operational amplifier (op amp) parameters and is compatible with most op amps and comparators. The EVM kit offers a main board with several socketed daughtercard options to fit package needs, allowing (...)
DIP-ADAPTER-EVM — DIP adapter evaluation module
Speed up your op amp prototyping and testing with the DIP adapter evaluation module (DIP-ADAPTER-EVM), which provides a fast, easy and inexpensive way to interface with small surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them (...)
DIYAMP-EVM — Universal do-it-yourself (DIY) amplifier circuit evaluation module
The DIYAMP-EVM is an evaluation module (EVM) family that provides engineers and do it yourselfers (DIYers) with real-world amplifier circuits, enabling you to quickly evaluate design concepts and verify simulations. It is available in three industry-standard packages (SC70, SOT-23 and SOIC) (...)
REF6025EVM-PDK — REF6025 voltage reference evaluation module
OPAx333 TINA-TI Reference Design (Rev. G)
TINA-TI Reference Design Companion for Temperature Sensing with NTC Circuit (Rev. C)
TINA-TI Reference Design Companion for Temperature Sensing with PTC Circuit (Rev. B)
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
OPAMP-NOISECALC — Noise Calculator
This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:
- A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
Supported products & hardware
Products
LCD & OLED display power & drivers
General-purpose op amps
Precision op amps (Vos<1mV)
CIRCUIT060001 — Single-supply, low-side, unidirectional current-sensing circuit
CIRCUIT060002 — Temperature sensing with NTC thermistor circuit
CIRCUIT060003 — Temperature sensing with PTC thermistor circuit
CIRCUIT060004 — Low-noise and long-range PIR sensor conditioner circuit
CIRCUIT060005 — High-side current sensing with discrete difference amplifier circuit
CIRCUIT060006 — Bridge amplifier circuit
CIRCUIT060007 — Low-side bidirectional current-sensing circuit
CIRCUIT060008 — Full-wave rectifier circuit
CIRCUIT060009 — Half-wave rectifier circuit
CIRCUIT060010 — PWM generator circuit
CIRCUIT060011 — Single-supply, second-order, multiple feedback high-pass filter circuit
CIRCUIT060012 — Single-supply, 2nd-order, multiple feedback low-pass filter circuit
CIRCUIT060014 — Voltage-to-current (V-I) converter circuit with MOSFET
CIRCUIT060016 — Non-inverting microphone pre-amplifier circuit
CIRCUIT060017 — Dual-supply, discrete, programmable gain amplifier circuit
CIRCUIT060018 — Photodiode amplifier circuit
CIRCUIT060019 — Inverting op amp with non-inverting positive reference voltage circuit
CIRCUIT060020 — Inverting amplifier circuit
CIRCUIT060043 — Low-level voltage-to-current converter circuit
CIRCUIT060074 — High-side current sensing with comparator circuit
CIRCUIT060075 — High-speed overcurrent detection circuit
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Many TI reference designs include the OPA333
Use our reference design selection tool to review and identify designs that best match your application and parameters.
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
SOIC (D) | 8 | Ultra Librarian |
SOT-23 (DBV) | 5 | Ultra Librarian |
SOT-SC70 (DCK) | 5 | Ultra Librarian |
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