Overview
The OPA4197-Q1 is a high-performance, quad-channel operational amplifier designed by Texas Instruments. It is part of the OPAx197-Q1 family, which includes the OPA197-Q1 and OPA2197-Q1. This device is AEC-Q100 qualified for automotive applications and offers outstanding DC precision and AC performance. The OPA4197-Q1 features a proprietary e-trim™ method for offset and offset temperature drift, ensuring minimal influence from inherent input transistor mismatch and errors during package molding. This operational amplifier is suitable for high-voltage industrial applications due to its robust features and wide operating temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage | ±2.25 V to ±18 V | 4.5 V to 36 V | V | |
| Offset Voltage | ±5 µV | ±250 µV | µV | |
| Offset Voltage Drift | ±0.2 µV/°C | µV/°C | ||
| Noise | 5.5 nV/√Hz at 1 kHz | nV/√Hz | ||
| Common-Mode Rejection | 140 dB | dB | ||
| Bias Current | ±5 pA | pA | ||
| Bandwidth | 10 MHz | MHz | ||
| Slew Rate | 20 V/µs | V/µs | ||
| Quiescent Current per Amplifier | 1 mA | 1.2 mA | mA | |
| Output Current | ±65 mA | mA | ||
| Capacitive Load Drive | Up to 1 nF | nF | ||
| Package | 14-pin TSSOP |
Key Features
- AEC-Q100 qualified for automotive applications
- Low offset voltage: ±5 µV (typical), ±250 µV (maximum)
- Low offset voltage drift: ±0.2 µV/°C
- Low noise: 5.5 nV/√Hz at 1 kHz
- High common-mode rejection: 140 dB
- Low bias current: ±5 pA
- Rail-to-rail input and output
- Wide bandwidth: 10 MHz
- High slew rate: 20 V/µs
- Low quiescent current: 1 mA per amplifier
- Wide supply range: ±2.25 V to ±18 V, 4.5 V to 36 V
- EMI/RFI filtered inputs
- Differential input-voltage range to supply rail
- High capacitive load drive capability: up to 1 nF
Applications
- Automotive systems
- High-voltage industrial applications
- DC/DC converters
- On-board (OBC) and wireless chargers
- Battery management systems (BMS)
Q & A
- What is the operating temperature range of the OPA4197-Q1?
The OPA4197-Q1 operates over a temperature range of –40°C to +125°C. - What is the typical offset voltage of the OPA4197-Q1?
The typical offset voltage is ±5 µV. - What is the bandwidth of the OPA4197-Q1?
The bandwidth is 10 MHz. - What is the slew rate of the OPA4197-Q1?
The slew rate is 20 V/µs. - What is the quiescent current per amplifier for the OPA4197-Q1?
The quiescent current per amplifier is 1 mA. - What is the maximum output current of the OPA4197-Q1?
The maximum output current is ±65 mA. - What type of package does the OPA4197-Q1 come in?
The OPA4197-Q1 comes in a 14-pin TSSOP package. - Is the OPA4197-Q1 AEC-Q100 qualified?
Yes, the OPA4197-Q1 is AEC-Q100 qualified for automotive applications. - What is the common-mode rejection ratio of the OPA4197-Q1?
The common-mode rejection ratio is 140 dB. - What is the capacitive load drive capability of the OPA4197-Q1?
The capacitive load drive capability is up to 1 nF.
