Dual, 5.5-MHz, high slew rate, low-noise, low-power, RRO precision JFET operational amplifier
Product details
Parameters
Package | Pins | Size
Features
- Best bandwidth and slew-rate-to-power ratio:
- gain-bandwidth product: 5.5 MHz
- Slew rate: 20 V/µs
- Low supply current: 475 µA (maximum)
- High precision:
- Very low offset: 150 µV (maximum)
- Very low offset drift: 1 µV/°C (maximum)
- Low input bias current: 2 pA
- Excellent noise performance:
- Very low voltage noise: 7 nV/√Hz
- Very low current noise: 0.8 fA/√ Hz
- Input-voltage range includes V– supply
- Single-supply operation: 4.5 V to 36 V
- Dual-supply operation: ±2.25 V to ±18 V
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Description
The OPA145 and OPA2145 (OPAx145) devices are part of a family of low-power JFET input amplifier that have excellent drift, low current noise, and pico-ampere input bias current. These features make the OPZx145 an excellent choice for amplifying small signals from high-impedance sensors.
The rail-to-rail output swing interfaces to modern, single-supply, precision, analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). In addition, the input range that includes V– allows designers to simplify power management and take advantage of the single-supply, low-noise JFET architecture.

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Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | OPAx145 High-Precision, Low-Noise, Rail-to-Rail Output, 5.5-MHz JFET Operational Amplifiers datasheet (Rev. E) | Oct. 29, 2020 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Speed up your op amp prototyping and testing with the 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 directly to existing circuits.
The (...)
Features
- Simplifies prototyping of SMT IC’s
- Supports 6 common package types
- Low Cost
Description
Features
- 3 packages to choose from: SC70-5, SOT23-5 and SOIC-8
- 12 circuit configurations to choose from: Noninverting, Inverting, Active Filters, Difference Amp, Comparator and more!
- Dual and single supply configurations
- PCB designed for High performance: Optimized for each function
- Multiple interface options (...)
Description
The Universal OPAMPEVM is a series of general purpose blank circuit boards that simplify prototyping circuits for a variety of IC package types. The evaluation module board design allows many different circuits to be constructed easily and quickly. Five models are offered with each targeted for (...)
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
- (...)
- 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 (...)
Features
- Senses Temperature between 25°C - 50°C
- Output: 0.05V - 3.25V
- Single 3.3V Supply with half-supply reference
Features
- Senses Temperature between 25°C - 50°C
- Output: 0.05V - 3.25V
- Single 3.3V Supply with half-supply reference
Features
- Senses Temperature between 0°C - 50°C
- Output: 0.05V - 3.25V
- Single 3.3V Supply with half-supply reference
Features
- Single 5V Supply
- Passes frequencies between 0.7Hz - 10Hz
- AC Gain: 90dB
Features
- Single 36V supply
- Input: 50mA to 1A
- Output: 0.25V to 5V
Features
- Single 5V supply with half-supply reference
- Input: -2.22mV to 2.27mV differential
- Output: 225mV - 4.72V
- Strain gauge resistance variation: 115 - 125 Ohms
- Gain: 1001V/V
Features
- Single 5V supply with half-supply reference
- Input: -2.22mV to 2.27mV differential
- Output: 225mV - 4.72V
- Strain gauge resistance variation: 115 - 125 Ohms
- Gain: 1001V/V
Features
- 30V Split supply with ground reference
- Input: +/-25mV to +/-10V
- Output: 25mV to 10V
Features
- 5V Split supply
- Input: +/-0.2mVpp to +/-4Vpp
- Output: 0.1V to 2V
Features
- 5V Single supply with half-supply reference
- Input: -2V to 2V
- Output: 0V to 5V
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOIC (D) | 8 | View options |
VSSOP (DGK) | 8 | 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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