Overview
The OPA124UAE4 is a precision monolithic FET operational amplifier produced by Texas Instruments. It utilizes the Difet (dielectrical isolation) manufacturing process, which ensures outstanding DC and AC performance characteristics. This amplifier is designed for use in critical instrumentation applications, offering superior performance in terms of bias current, noise, voltage offset, drift, open-loop gain, and common-mode rejection compared to BIFET and CMOS amplifiers.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Noise | 6 nV/√Hz (at 10 kHz) | nV/√Hz |
| Input Bias Current | 1 pA max | pA |
| Input Offset Voltage | 250 µV max | µV |
| Offset Voltage Drift | 2 µV/°C max | µV/°C |
| Open-Loop Gain | 120 dB min | dB |
| Common-Mode Rejection Ratio | 100 dB min | dB |
| Supply Voltage Range | ±5V to ±15V | V |
| Operating Temperature Range | -25°C to 85°C | °C |
| Package Type | 8-Pin SOIC |
Key Features
- Low noise: 6 nV/√Hz at 10 kHz
- Low input bias current: 1 pA max
- Low offset voltage: 250 µV max
- Low drift: 2 µV/°C max
- High open-loop gain: 120 dB min
- High common-mode rejection ratio: 100 dB min
- Unique cascode circuitry for high precision input specifications and reduced susceptibility to flicker noise
- Laser trimming of thin-film resistors for low offset and drift
Applications
- Precision photodiode preamplifiers
- Medical equipment
- Optoelectronics
- Data acquisition systems
- Test equipment
Q & A
- What is the input noise of the OPA124UAE4? The input noise is 6 nV/√Hz at 10 kHz.
- What is the maximum input bias current of the OPA124UAE4? The maximum input bias current is 1 pA.
- What is the maximum input offset voltage of the OPA124UAE4? The maximum input offset voltage is 250 µV.
- What is the offset voltage drift of the OPA124UAE4? The offset voltage drift is 2 µV/°C max.
- What is the open-loop gain of the OPA124UAE4? The open-loop gain is 120 dB min.
- What is the common-mode rejection ratio of the OPA124UAE4? The common-mode rejection ratio is 100 dB min.
- In what package types is the OPA124UAE4 available? The OPA124UAE4 is available in an 8-Pin SOIC package.
- What are the typical applications of the OPA124UAE4? Typical applications include precision photodiode preamplifiers, medical equipment, optoelectronics, data acquisition systems, and test equipment.
- What is the operating temperature range of the OPA124UAE4? The operating temperature range is -25°C to 85°C.
- Is the OPA124UAE4 still in production? The OPA124UAE4 is obsolete and no longer manufactured, but substitutes are available.
