OPA128KM Ultra-Low Bias Current Op Amp 0.15 pA 500 μV TO-99-8 Texas Instruments Operational Amplifier
Price:
Based on current price
MOQ:
1
Delivery Time:
3-5 work days
Brand:
Texas Instruments
Product Description
OPA128KM Ultra-Low Bias Current Operational Amplifier
The OPA128KM from Texas Instruments is a precision BiFET operational amplifier featuring ultra-low input bias current of 0.15 pA and low offset voltage of 500 μV. This single-channel amplifier operates on dual supply voltages from ±5V to ±18V, making it ideal for high-impedance applications requiring exceptional accuracy.
Key Features & Performance
- Ultra-low input bias current: 0.15 pA for minimal loading effects
- Low offset voltage: 500 μV maximum for precision applications
- Wide supply range: ±5V to ±18V dual supply operation
- Gain bandwidth: 1 MHz with 3 V/μs slew rate
- Excellent noise performance: 92 nV/√Hz input voltage noise
- High PSRR and CMRR: 90 dB for superior power supply rejection
- Output current: 10 mA per channel drive capability
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Product Category | Instrumentation Amplifier |
| Series | OPA128 |
| Package Type | TO-99-8 |
| Mounting Style | Through Hole |
| Technology | BiFET |
| Number of Channels | 1 Channel |
| Amplifier Type | Ultra Low Bias Current Amplifier |
| Operating Supply Current | 1.5 mA |
| Maximum Operating Temperature | +70°C |
| Minimum Operating Temperature | 0°C |
| Input Offset Voltage | 500 μV |
| Input Bias Current | 0.15 pA |
| Gain Bandwidth Product | 1 MHz |
| Slew Rate | 3 V/μs |
| Power Supply Rejection Ratio | 90 dB |
| Common Mode Rejection Ratio | 90 dB |
| Output Current per Channel | 10 mA |
| Input Voltage Noise Density | 92 nV/√Hz |
| Input Noise Current Density | 0.00016 pA/√Hz |
Application Areas
This precision operational amplifier is specifically designed for applications requiring ultra-low input bias current and high accuracy, including:
- High-impedance sensor interfaces
- Photodiode preamplifiers
- Precision integrators and filters
- Medical instrumentation equipment
- Test and measurement systems
- Portable and battery-powered devices
Packaged in TO-99-8 metal can for optimal thermal performance and electromagnetic shielding, the OPA128KM delivers reliable operation in demanding industrial and scientific environments.
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