LTC1047 - Dual Micropower Zero-Drift Operational Amplifier with Internal Capacitors
Features
- No External Components Required
- Maximum Offset Voltage:
10µV - Maximum Offset Voltage Drift:
50nV/°C - Supply Current: 80µA
- Minimum CMRR: 110dB
- Minimum PSRR 110dB
- Single Supply Operation 4.75V to 16V
- Common Mode Range Includes GND
- Output Swings to GND
- Typical Overload Recovery Time 70ms
- Pin Compatible with Industry Standard Dual Op Amps
Typical Application
Description
The LTC®1047 is a micropower, high performance dual zero-drift operational amplifier. The sample-and-hold capacitors usually required by other chopper amplifiers are integrated on-chip, minimizing the need for external components.
The LTC1047 has a typical offset voltage of 3µV, drift of 10nV/°C, input noise voltage typically 3.5µVP-P, and typical voltage gain of 150dB. The common mode rejection is 110dB minimum, with minimum power supply rejection of 105dB. The LTC1047 also offers a 0.2V/µs slew rate and a gain bandwidth product of 200kHz. Overload recovery time from saturation is 70ms, four times faster than chopper amplifiers with external capacitors.
The LTC1047 is available in a standard plastic 8-pin PDIP as well as a 16-pin SW package. The LTC1047 is a plug-in replacement for most dual op amps with improved DC performance and substantial power savings.
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 |
|---|---|---|---|---|---|
| LTC1047CN8#PBF | N-8 | N | C | 05-08-1510 (N8) | Yes |
| LTC1047CSW#PBF | SW-16 | SW | C | 05-08-1620 (SW16) | Yes |
| LTC1047CSW#TRPBF | SW-16 | SW | C | 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 | |
|---|---|---|---|---|---|---|
| LTC1047CN8#PBF | N-8 | C | $6.00 | $4.85 | Yes | |
| LTC1047CSW#PBF | SW-16 | C | $6.85 | $5.40 | Yes | |
| LTC1047CSW#TRPBF | SW-16 | C | $5.46 | 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
- Thermocouple Amplifiers
- Electronic Scales
- Battery Powered Instrumentation
- Strain Gauge Amplifiers
- Remote Located Sensors
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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:
LTC1047
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.