LT1677 - Low Noise, Rail-to-Rail Precision Op Amp
Features
- Rail-to-Rail Input and Output
- 100% Tested Low Voltage Noise:
3.2nV/rtHz Typ at 1kHz
4.5nV/rtHz 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
Typical Application
Description
The LT1677 features the lowest noise performance available for a rail-to-rail operational amplifier: 3.2nV/rtHz 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.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LT1677CN8#PBF | N-8 | N | C | 05-08-1510 (N8) | Yes |
| LT1677CS8#PBF | SO-8 | S8 | C | 05-08-1610 (S8) | Yes |
| LT1677CS8#TRPBF | SO-8 | S8 | C | 05-08-1610 (S8) | Yes |
| LT1677IN8#PBF | N-8 | N | I | 05-08-1510 (N8) | Yes |
| LT1677IS8#PBF | SO-8 | S8 | I | 05-08-1610 (S8) | Yes |
| LT1677IS8#TRPBF | SO-8 | S8 | I | 05-08-1610 (S8) | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LT1677CN8#PBF | N-8 | C | $2.60 | $2.15 | Yes | |
| LT1677CS8#PBF | SO-8 | C | $2.60 | $2.15 | Yes | |
| LT1677CS8#TRPBF | SO-8 | C | $2.21 | Yes | ||
| LT1677IN8#PBF | N-8 | I | $2.80 | $2.35 | Yes | |
| LT1677IS8#PBF | SO-8 | I | $2.80 | $2.35 | Yes | |
| LT1677IS8#TRPBF | SO-8 | I | $2.41 | Yes | ||
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC417B | DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp | $25.00 | |
| Buy Now | |||
Applications
- Low Noise Signal Processing
- Microvolt Accuracy Threshold Detection
- Strain Gauge Amplifiers
- Tape Head Preamplifiers
- Direct Coupled Audio Gain Stages
- Infrared Detectors
- Battery-Powered Microphones
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Design Tools
LTspice
LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice
Models for the following parts are available in LTspice:
LT1677
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
