Single low noise, high-speed, 12V CMOS operational amplifier
Product details
Parameters
Package | Pins | Size
Features
- BANDWIDTH: 20MHz
- SLEW RATE: 30V/µs
- FAST 16-Bit SETTLING TIME
- LOW NOISE: 6nV/
Hz (typ) at 100kHz - EXCELLENT CMRR, PSRR, and AOL
- RAIL-TO-RAIL OUTPUT
- CM RANGE INCLUDES GND
- THD+N: 0.0003% (typ) at 1kHz
- QUIESCENT CURRENT: 5.5mA/ch (max)
- SUPPLY VOLTAGE: 4V to 12V
- SHUTDOWN MODE (OPAx726): 6µA/ch
- APPLICATIONS
- OPTICAL NETWORKING
- TRANSIMPEDANCE AMPLIFIERS
- INTEGRATORS
- ACTIVE FILTERS
- A/D CONVERTER BUFFERS
- I/V CONVERTER FOR DACs
- PORTABLE AUDIO
- PROCESS CONTROL
- TEST EQUIPMENT
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Description
The OPA725 and OPA726 series op amps use a state-of-the-art 12V analog CMOS process, and combine outstanding ac performance with low bias current and excellent CMRR, PSRR, and AOL. The 20MHz Gain-Bandwidth (GBW) Product is achieved by using a proprietary and patent-pending output stage design. These characteristics allow excellent 16-bit settling times for driving 16-bit Analog-to-Digital Converters (ADCs).
Excellent ac characteristics, such as 20MHz GBW, 30V/µs slew rate and 0.0003% THD+N make the OPA725 and OPA726 well-suited for communication, high-end audio, and active filter applications. With bias current of less than 200pA, they are well-suited for use as transimpedance (I/V-conversion) amplifiers for monitoring optical power in ONET applications.
The OPA725 and OPA726 op amps can be used in single-supply applications from 4V up to 12V, or dual-supply from ±2V to ±6V. The output swings to within 150mV of the rails, maximizing dynamic range. The shutdown versions (OPAx726) reduce the quiescent current to less than 6µA and feature a reference pin for easy shutdown operation with standard CMOS logic in dual supply applications.
The OPA725 (single) is available in SOT23-5 and SO-8 [ackages, and the OPA2725 (dual) is available in MSOP-8 (Q1 ’04) and SO-8 packages. The OPA726 (single with shutdown) is available in MSOP-8 and SO-8. The OPA2726 (dual with shutdown) is available in MSOP-10. All versions are specified for operation from –40°C to +125°C.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | OPA725 and OPA726 Series: Very Low-Noise, High-Speed, 12V CMOS Op Amp datasheet (Rev. B) | Jan. 08, 2004 |
| Technical articles | What is an op amp? | Jan. 21, 2020 | |
| Technical articles | How to lay out a PCB for high-performance, low-side current-sensing designs | Feb. 06, 2018 | |
| Technical articles | Low-side current sensing for high-performance cost-sensitive applications | Jan. 22, 2018 | |
| Technical articles | Voltage and current sensing in HEV/EV applications | Nov. 22, 2017 | |
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | Mar. 28, 2017 | |
| Application note | High-Voltage Signal Conditioning for Low-Voltage ADCs (Rev. B) | May 18, 2015 | |
| Application note | OPA725, OPA2725, OPA726, OPA2726 EMI Immunity Performance (Rev. A) | Nov. 02, 2012 | |
| Application note | High-Voltage Signal Conditioning for Low Voltage ADCs | Jun. 15, 2004 |
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 (...)
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
- (...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SOIC (D) | 8 | View options |
| SOT-23 (DBV) | 5 | 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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