Overview
The OPA4192IPWR is a precision operational amplifier from Texas Instruments, part of the OPAx192 family which includes the OPA192 and OPA2192. This device is known for its high precision and robust performance, making it suitable for a variety of high-voltage industrial applications. The OPA4192IPWR offers outstanding DC precision and AC performance, including rail-to-rail input/output, low offset voltage, and high bandwidth.
Available in a 14-pin TSSOP (PW) package, this op-amp is designed to operate over a wide supply voltage range from ±2.25 V to ±18 V and from +4.5 V to +36 V. It is specified to operate from –40°C to +125°C, ensuring reliability in diverse environmental conditions.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Input Offset Voltage | ±5 µV | µV |
| Input Offset Voltage Drift | ±0.2 µV/°C | µV/°C |
| Noise | 5.5 nV/√Hz at 1 kHz | nV/√Hz |
| Common-Mode Rejection Ratio (CMRR) | 140 dB | dB |
| Input Bias Current | ±5 pA | pA |
| Bandwidth (GBW) | 10 MHz | MHz |
| Slew Rate | 20 V/µs | V/µs |
| Quiescent Current per Amplifier | 1 mA | mA |
| Supply Voltage Range | ±2.25 V to ±18 V, +4.5 V to +36 V | V |
| Output Current | ±65 mA | mA |
| Capacitive Load Drive Capability | Up to 1 nF | nF |
Key Features
- Low Offset Voltage: ±5 µV, ensuring high precision in DC applications.
- Low Offset Voltage Drift: ±0.2 µV/°C, maintaining stability over temperature changes.
- Low Noise: 5.5 nV/√Hz at 1 kHz, suitable for high-sensitivity applications.
- High Common-Mode Rejection Ratio (CMRR): 140 dB, providing excellent rejection of common-mode signals.
- Low Bias Current: ±5 pA, minimizing the impact on input signals.
- Rail-to-Rail Input and Output: Allows the input and output signals to swing to the supply rails.
- Wide Bandwidth: 10 MHz GBW, supporting high-frequency applications.
- High Slew Rate: 20 V/µs, enabling fast response times.
- Low Quiescent Current: 1 mA per amplifier, efficient for power-sensitive designs.
- Wide Supply Voltage Range: ±2.25 V to ±18 V and +4.5 V to +36 V, flexible for various power supply configurations.
- EMI/RFI Filtered Inputs: Reduces electromagnetic interference and radio-frequency interference.
- Differential Input Voltage Range to Supply Rail: Enhances the operational range of the input signals.
- High Capacitive Load Drive Capability: Up to 1 nF, suitable for driving capacitive loads.
Applications
- Multiplexed Data-Acquisition Systems: Ideal for systems that require high precision and low noise.
- Test and Measurement Equipment: Suitable for precision measurement instruments.
- High-Resolution ADC Driver Amplifiers: Optimized for driving analog-to-digital converters.
- SAR ADC Reference Buffers: Used in successive approximation register analog-to-digital converters for stable reference voltages.
- Programmable Logic Controllers (PLCs): Enhances the precision and reliability of PLC systems.
- High-Side and Low-Side Current Sensing: Suitable for current sensing applications in industrial settings.
- High Precision Comparator: Can be used in comparator circuits requiring high precision and stability.
Q & A
- What is the typical input offset voltage of the OPA4192IPWR?
The typical input offset voltage is ±5 µV.
- What is the input offset voltage drift of the OPA4192IPWR?
The input offset voltage drift is ±0.2 µV/°C.
- What is the noise level of the OPA4192IPWR at 1 kHz?
The noise level is 5.5 nV/√Hz at 1 kHz.
- What is the common-mode rejection ratio (CMRR) of the OPA4192IPWR?
The CMRR is 140 dB.
- What is the slew rate of the OPA4192IPWR?
The slew rate is 20 V/µs.
- What is the quiescent current per amplifier for the OPA4192IPWR?
The quiescent current per amplifier is 1 mA.
- What is the supply voltage range for the OPA4192IPWR?
The supply voltage range is ±2.25 V to ±18 V and +4.5 V to +36 V.
- What is the maximum output current of the OPA4192IPWR?
The maximum output current is ±65 mA.
- What is the capacitive load drive capability of the OPA4192IPWR?
The capacitive load drive capability is up to 1 nF.
- In what temperature range can the OPA4192IPWR operate?
The OPA4192IPWR can operate from –40°C to +125°C.
