LT1125 - Quad Low Noise, High Speed Precision Op Amps
Features
- 100% Tested Low Voltage Noise:
2.7nV/√Hz Typ
4.2nV/√Hz Max - Slew Rate: 4.5V/μs Typ
- Gain-Bandwidth Product: 12.5MHz Typ
- Offset Voltage,
Prime Grade: 70μV Max
Low Grade: 100μV Max - High Voltage Gain: 5 Million Min
- Supply Current Per Amplifier: 2.75mA Max
- Common Mode Rejection: 112dB Min
- Power Supply Rejection: 116dB Min
- Available in 8-Pin SO Package
Typical Application
Description
The LT®1124 dual and LT1125 quad are high performance op amps that offer higher gain, slew rate and bandwidth than the industry standard OP-27 and competing OP‑270/ OP-470 op amps. In addition, the LT1124/LT1125 have lower IB and IOS than the OP-27; lower VOS and noise than the OP-270/OP-470.
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. Slew rate, gain bandwidth and 1kHz noise are 100% tested for each individual amplifier. Consequently, the specifications of even the lowest cost grades (the LT1124C and the LT1125C) have been spectacularly improved compared to equivalent grades of competing amplifiers.
Power consumption of the LT1124 is one-half of two OP-27s. Low power and high performance in an 8-pin SO package make the LT1124 a first choice for surface mounted systems and where board space is restricted.
For a decompensated version of these devices, with three times higher slew rate and bandwidth, please see the LT1126/LT1127 data sheet.
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 |
|---|---|---|---|---|---|
| LT1125ACN#PBF | N-14 | N | C | 05-08-1510 (N14) | Yes |
| LT1125CN#PBF | N-14 | N | C | 05-08-1510 (N14) | Yes |
| LT1125CSW#PBF | SW-16 | SW | C | 05-08-1620 (SW16) | Yes |
| LT1125CSW#TRPBF | SW-16 | SW | C | 05-08-1620 (SW16) | Yes |
| LT1125MPSW | SW-16 | SW | MP | 05-08-1620 (SW16) | No |
| LT1125MPSW#PBF | SW-16 | SW | MP | 05-08-1620 (SW16) | Yes |
| LT1125MPSW#TR | SW-16 | SW | MP | 05-08-1620 (SW16) | No |
| LT1125MPSW#TRPBF | SW-16 | SW | MP | 05-08-1620 (SW16) | 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 | |
|---|---|---|---|---|---|---|
| LT1125ACN#PBF | N-14 | C | $8.83 | $7.15 | Yes | |
| LT1125CN#PBF | N-14 | C | $7.00 | $5.70 | Yes | |
| LT1125CSW#PBF | SW-16 | C | $7.67 | $6.20 | Yes | |
| LT1125CSW#TRPBF | SW-16 | C | $6.26 | Yes | ||
| LT1125MPSW | SW-16 | MP | $23.01 | $18.72 | No | |
| LT1125MPSW#PBF | SW-16 | MP | $23.01 | $18.72 | Yes | |
| LT1125MPSW#TR | SW-16 | MP | $18.78 | No | ||
| LT1125MPSW#TRPBF | SW-16 | MP | $18.78 | 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.Click here to view our complete list of demo boards
Applications
- Two and Three Op Amp Instrumentation Amplifiers
- Low Noise Signal Processing
- Active Filters
- Microvolt Accuracy Threshold Detection
- Strain Gauge Amplifiers
- Direct Coupled Audio Gain Stages
- Tape Head Preamplifiers
- Infrared Detectors
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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:
LT1125
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.
