Features and Benefits
- Ultra Low Voltage Noise: 1nV/√Hz
- Low Distortion: HD2/HD3<–90dBC at 4VP-P,1MHz into 1kΩ
- High Slew Rate: 180V/μs
- GBW = 420MHz
- –3dB Frequency (AV = +1): 330MHz
- n Input Common Mode Range Includes Negative Rail
- Output Swings Rail-to-Rail
- Supply Current: 5.5mA/Channel Typ
- Operating Supply Range: 2.8V to 11.75V
- Input Offset Voltage: 95μV Max
- Offset Drift :0.4μV/°C
- Low Power Shutdown
- Very High Open Loop Gain: 9V/μV (139dB), RL = 1kΩ
- Operating Temp Range: –40°C to 125°C
- Single in 8-Lead SOIC, TSOT-23, 2mm × 2mm DFN. Duals in 3mm × 3mm DFN, MS8E
The LTC6226 are very fast, low noise rail-to-rail output, unity gain stable single/dual op amps, with a gainbandwidth product of 420MHz and a slew rate of 180V/μs. The low input referred voltage noise of only 1nV/√Hz and low distortion of less than –90dBC for 4VP-P signals at 1MHz makes them ideal for applications that require high dynamic range and deal with very fast signals, such as driving A/D converters.
The combination of low offset, low offset drift, high gain (139dB) and high CMRR (114dB) make these excellent devices for high dynamic range applications.
The LTC6226 family maintains excellent performance for supply voltages of 2.8V to 11.75V and the devices are fully specified at supplies of 3V, 5V and 10V (±5V).
With an input range extending to the negative rail and rail-to-rail output stage, the operational amplifier can accommodate wide swinging signals, and true single supply operation.
For space constrained applications, the amplifiers come in 2mm × 2mm DFN (single) and 3mm × 3mm DFN (dual) packages. The devices are also available in 8-lead SOIC,TSOT-23 and MS8E.
These amplifiers can be used as replacements for many high speed op amps to improve speed, noise and dynamic range.
- Optical Electronics: Fast AC-Coupled Transimpedance Amplifiers
- Driving High Dynamic Range A/D Converters
- Active Filters
- Video Amplifiers
- Low Voltage Low Distortion Amplification
Markets and Technologies
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The EVAL-LTC6226S8/EVAL-LTC6228IS8 allow the evaluation of the LTC6226 and the LTC6228, 8-lead, single channel, small outline integrated circuit (SOIC_N), 150 mil op amps. The EVAL-LTC6226S8 and EVAL-LTC6228IS8 are prepopulated boards on a buffer configuration with a post low-pass filter. This configuration allows the LTC6226 and the LTC6228 to be used as a high speed analog-to-digital converter (ADC) drivers. The EVAL-LTC6226S8/EVAL-LTC6228IS8 support other typical configurations of an op amp and have provisions for typical applications of the LTC6226 and the LTC6228, which include an active filter. The SHDN_N pin can be shunt to the VCC pin or the VEE pin, or to an external voltage drive.
The 4-layer EVAL-LTC6226S8/EVAL-LTC6228IS8 accept edge mounted, Subminiature Version A (SMA) connectors on both inputs and outputs to provide an efficient connection to the test equipment and other circuitry. In addition, the EVAL-LTC6226S8/EVAL-LTC6228IS8 have sufficient test points for signal pins and groundings.
Optimized power and ground planes ensure low noise and high speed operation. Component placement and power supply bypassing are optimized for maximum circuit flexibility and performance. The EVAL-LTC6226S8/EVAL-LTC6228IS8 accept C0402 or C0603 surface-mount technology (SMT) components and C1206 bypass capacitors for C8 and C9.
All components are placed on the primary side of the EVAL-LTC6226S8/EVAL-LTC6228IS8, and no components are placed on the secondary side. The EVAL-LTC6226S8 and EVAL-LTC6228IS8 evaluation boards are identical except for the on-board devices.
For full details on the LTC6226 and the LTC6228, see the LTC6226 and the LTC6228 data sheets, which must be consulted in conjunction with the user guide when using the EVAL-LTC6226S8/EVAL-LTC6228IS8.
Documentation & Resources
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Models for the following parts are available in LTspice:
Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.
Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.