Overview
The OPA4197IPWR is a precision operational amplifier produced by Texas Instruments. It belongs to the OPAx197 family, which includes the OPA197, OPA2197, and OPA4197. These devices are known for their outstanding DC precision and AC performance, making them suitable for high-voltage, industrial applications. The OPA4197IPWR is a quad-channel operational amplifier with rail-to-rail input and output, low offset voltage, and high common-mode rejection ratio (CMRR). It operates over a wide temperature range of -40°C to 125°C and is packaged in a 14-pin TSSOP (Thin Shrink Small Outline Package).
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | OPA4197IPWR |
| Package Type | TSSOP-14 |
| Number of Channels | 4 |
| Operating Temperature Range | -40°C to 125°C |
| Total Supply Voltage | 4.5V to 36V, ±2.25V to ±18V |
| Offset Voltage (Max) | ±0.25 mV |
| Offset Voltage Drift (Typ) | ±0.5 µV/°C |
| Input Bias Current (Max) | 20 pA |
| Quiescent Current per Channel (Typ) | 1 mA |
| Bandwidth (Typ) | 10 MHz |
| Slew Rate (Typ) | 20 V/µs |
| Output Current (Typ) | 65 mA |
| Common-Mode Rejection Ratio (Min) | 120 dB |
| Noise at 1 kHz (Typ) | 5.5 nV/√Hz |
Key Features
- Rail-to-Rail Input and Output: Allows the amplifier to operate with input and output voltages that range from the negative to the positive supply rail.
- Low Offset Voltage and Drift: Maximum offset voltage of ±0.25 mV and a typical offset voltage drift of ±0.5 µV/°C, ensuring high precision.
- Low Noise: 5.5 nV/√Hz at 1 kHz, which is beneficial for applications requiring low noise levels.
- High Common-Mode Rejection Ratio (CMRR): Minimum CMRR of 120 dB, providing good immunity to common-mode noise.
- Low Bias Current: Typical input bias current of ±5 pA, reducing the impact on the input signal.
- Wide Bandwidth and High Slew Rate: 10-MHz bandwidth and a slew rate of 20 V/µs, suitable for high-frequency applications.
- High Capacitive Load Drive Capability: Can drive capacitive loads up to 1 nF, making it robust for various applications.
- EMI- and RFI-Filtered Inputs: Provides protection against electromagnetic interference and radio-frequency interference.
Applications
The OPA4197IPWR is designed for high-voltage, industrial applications where precision and robust performance are critical. Some typical applications include:
- Industrial Automation: Used in control systems, sensors, and actuators due to its high precision and robustness.
- Medical Equipment: Suitable for medical devices requiring low noise and high precision, such as ECG and EEG machines.
- Aerospace and Defense: Applied in various military and aerospace applications where high reliability and performance are essential.
- Test and Measurement Equipment: Used in oscilloscopes, signal generators, and other test equipment due to its high bandwidth and low noise characteristics.
Q & A
- What is the operating temperature range of the OPA4197IPWR?
The operating temperature range is -40°C to 125°C.
- What is the typical offset voltage of the OPA4197IPWR?
The typical offset voltage is ±25 µV, with a maximum of ±0.25 mV.
- What is the bandwidth of the OPA4197IPWR?
The bandwidth is typically 10 MHz.
- What is the slew rate of the OPA4197IPWR?
The slew rate is typically 20 V/µs.
- Can the OPA4197IPWR drive high capacitive loads?
Yes, it can drive capacitive loads up to 1 nF.
- What is the common-mode rejection ratio (CMRR) of the OPA4197IPWR?
The minimum CMRR is 120 dB.
- Is the OPA4197IPWR EMI- and RFI-filtered?
Yes, it has EMI- and RFI-filtered inputs.
- What is the quiescent current per channel for the OPA4197IPWR?
The typical quiescent current per channel is 1 mA.
- What is the output current capability of the OPA4197IPWR?
The typical output current is 65 mA.
- In what package is the OPA4197IPWR available?
The OPA4197IPWR is available in a 14-pin TSSOP (Thin Shrink Small Outline Package).
