Features and Benefits
- Rail-to-Rail Input and Output
- 100% Tested Low Voltage Noise:
- 3.2nV/√Hz Typ at 1kHz
- 4.5nV/√Hz Max at 1kHz
- Offset Voltage: 60µV Max
- Low VOS Drift: 0.2µV/°C Typ
- Low Input Bias Current: 20nA Max
- Wide Supply Range: 3V to ±18V
- High AVOL: 7V/µV Min, RL = 10k
- High CMRR: 109dB Min
- High PSRR: 108dB Min
- Gain Bandwidth Product: 7.2MHz
- Slew Rate: 2.5V/µs
- Operating Temperature Range: –40°C to 85°C
The LT1677 features the lowest noise performance available for a rail-to-rail operational amplifier: 3.2nV/√Hz wideband noise, 1/f corner frequency of 13Hz and 90nV peak-to-peak 0.1Hz to 10Hz noise. Low noise is combined with outstanding precision: 20µV offset voltage and 0.2µV/°C drift, 130dB common mode and power supply rejection and 7.2MHz gain bandwidth product. The common mode range exceeds the power supply by 100mV.
The voltage gain of the LT1677 is extremely high, 19 million (typical) driving a 10k load.
In the design, processing and testing of the device, particular attention has been paid to the optimization of the entire distribution of several key parameters. Consequently, the specifications have been spectacularly improved compared to competing rail-to-rail amplifiers.
- Low Noise Signal Processing
- Microvolt Accuracy Threshold Detection
- Strain Gauge Amplifiers
- Tape Head Preamplifiers
- Direct Coupled Audio Gain Stages
- Infrared Detectors
- Battery-Powered Microphones
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
R334 Reliability Data3/22/2018
DC417B - Demo Manual2/1/2012
High Voltage Amplifiers9/10/2013
Consider New Precision Amplifiers for Updated Industrial Equipment Designs9/1/2009 LT Journal
New Rail-to-Rail Output Op Amps Bring Precision Performance to Low Voltage Systems5/1/2000 LT Journal
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:
LT1677 Companion Parts
Recommended Related Parts
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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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.