190MHz Rail-to-Rail Output Amplifier with Disable
Product details
Parameters
Package | Pins | Size
Features
- (VS = 5V, Typical Values Unless Specified)
- Supply Current (No Load) 3.6mA
- Supply Current (Off Mode) 400μA
- Output Resistance (Closed Loop 1MHz) 0.186Ω
- −3dB BW (AV = 1) 190MHz
- Settling Time 33nsec
- Input Common Mode Voltage −0.2V to 4V
- Output Voltage Swing 40mV from Rails
- Linear Output Current 110mA
- Total Harmonic Distortion −60dBc
- Fully Characterized for 3V, 5V and ±5V
- No Output Phase Reversal with CMVR Exceeded
- Excellent Overdrive Recovery
- Off Isolation 1MHz −70dB
- Differential Gain 0.12%
- Differential Phase 0.045°
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Description
The LMH6639 is a voltage feedback operational amplifier with a rail-to-rail output drive capability of 110mA. Employing TI’s patented VIP10 process, the LMH6639 delivers a bandwidth of 190MHz at a current consumption of only 3.6mA. An input common mode voltage range extending to 0.2V below the V− and to within 1V of V+, makes the LMH6639 a true single supply op-amp. The output voltage range extends to within 30mV of either supply rail providing the user with a dynamic range that is especially desirable in low voltage applications.
The LMH6639 offers a slew rate of 172V/μs resulting in a full power bandwidth of approximately 28MHz. The LMH6639 also offers protection for the input transistors by using two anti-parallel diodes and a series resistor connected across the inputs. The TON value of 83nsec combined with a settling time of 33nsec makes this device ideally suited for multiplexing applications (see application note for details). Careful attention has been paid to ensure device stability under all operating voltages and modes. The result is a very well behaved frequency response characteristic for any gain setting including +1, and excellent specifications for driving video cables including harmonic distortion of −60dBc, differential gain of 0.12% and differential phase of 0.045°
Same functionality and pinout but is not an equivalent to the compared device:
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | LMH6639 190MHz Rail-to-Rail Output Amplifier with Disable datasheet (Rev. G) | Mar. 15, 2013 |
| Technical articles | How to reduce distortion in high-voltage, high-frequency signal generation for AWGs | Oct. 30, 2018 | |
| Technical articles | What are the advantages of using JFET-input amplifiers in high-speed applications? | Jun. 18, 2018 | |
| Technical articles | Unique active mux capability combines buffer and switch into one solution | Oct. 10, 2017 | |
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | Mar. 28, 2017 | |
| Technical articles | How to minimize filter loss when you drive an ADC | Oct. 20, 2016 | |
| More literature | Die D/S LMH6639 MDC 190Mhz Rail-Rail Output Amplifier With Disable | Sep. 28, 2012 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Texas Instruments offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Op Amps that are offered in the 5-/6-pin SOT-23 package. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired circuit (...)
Features
- Accommodates various high-speed Op Amp
- Allows quick and easy evaluation
- Serves as reference design to aid in high-speed PCB layout
- Utilizes surface-mount components
Description
Texas Instruments offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Op Amp that are offered in the 8-Pin SOIC package. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired circuit configuration. The (...)
Features
- Accommodates various high-speed Op Amp
- Allows quick and easy evaluation
- Serves as reference design to aid in high-speed PCB layout
- Utilizes surface-mount components
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) | 6 | 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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