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Texas Instruments
Texas Instruments OPA4131NA Quad General-Purpose FET-Input Operational Amplifier – 4MHz, 10V/µs, 14-Pin SOIC
Texas Instruments OPA4131NA is a quad general-purpose FET-input operational amplifier featuring four independent amplifier channels, 4MHz typical bandwidth, 10V/µs slew rate, 50pA maximum input bias current and a wide ±4.5V to ±18V supply range. Supplied in a 14-pin SOIC surface-mount package for precision analog, instrumentation, filtering and signal-conditioning applications.
Stock: 0SKU: SEN-TEXAS-INSTRUMENTS-OPA2131NAModel: OPA4131NA
BDT 310BDT 320
Final pricing may vary by configuration, quantity, delivery and project requirements.
Product overview
Texas Instruments OPA4131NA Quad FET-Input Operational Amplifier
The Texas Instruments OPA4131NA is a high-performance, general-purpose quad FET-input operational amplifier containing four independent amplifier channels in a single package. It combines very low input bias current, low offset voltage and good dynamic performance for precision analog and signal-conditioning applications.
The OPA4131NA features a typical 4MHz gain-bandwidth product, 10V/µs slew rate, and a wide supply range of ±4.5V to ±18V. Its FET-input architecture provides extremely low input bias current, making it particularly useful with high-impedance signal sources.
Product Specifications
| Manufacturer | Texas Instruments |
| Part Number | OPA4131NA |
| Series | OPAx131 |
| Product Type | General-Purpose Operational Amplifier |
| Amplifier Type | FET-Input Op Amp |
| Number of Channels | 4 (Quad) |
| Gain-Bandwidth Product | 4MHz Typical |
| Slew Rate | 10V/µs Typical |
| Input Bias Current | 50pA Maximum |
| Input Offset Voltage | 750µV Maximum |
| Supply Voltage Range | ±4.5V to ±18V |
| Total Supply Range | 9V to 36V |
| Voltage Noise at 1kHz | 15nV/√Hz Typical |
| Rail-to-Rail | No |
| Operating Temperature | -40°C to +85°C |
| Package | 14-Pin SOIC (D) |
| Mounting Type | Surface Mount (SMD) |
Quad FET-Input Architecture
The OPA4131NA integrates four independent operational amplifiers into one device. Its FET inputs provide extremely low input bias current, helping minimize loading errors when working with high-impedance sensors, filters and analog signal sources.
Wide Supply Voltage Range
The device supports supplies from ±4.5V to ±18V, corresponding to a total supply range of 9V to 36V. This makes it suitable for a broad range of industrial, instrumentation and general-purpose analog circuits.
Good Dynamic Performance
With a typical 4MHz gain-bandwidth product and 10V/µs slew rate, the OPA4131NA provides useful dynamic performance for signal conditioning, filtering, buffering and amplification.
Typical Applications
- Analog Signal Conditioning
- High-Impedance Sensor Interfaces
- Active Filters
- Instrumentation Circuits
- Data Acquisition Systems
- Industrial Control Electronics
- Analog Buffer and Amplifier Circuits
- Test and Measurement Equipment
- Electronic Equipment Repair