Overview
The OPA4137UA/2K5E4 is a quad operational amplifier from Texas Instruments, part of the OPA137 series. These FET-input operational amplifiers are designed for low-cost and miniature applications, offering high performance in a compact package. The OPA4137UA/2K5E4 is available in a 14-pin SOIC package and is RoHS compliant. It is suitable for a wide range of general-purpose applications due to its excellent speed, low quiescent current, and high open-loop gain.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | TA = –40°C to +85°C | ±1.5 | ±3 | ±2.5 | mV |
| Input Bias Current (IB) | 5 | pA | |||
| Quiescent Current | 220 | µA/channel | |||
| Open-Loop Gain (AOL) | VO = –13.8V to 13.9V | 86 | 94 | dB | |
| Gain-Bandwidth Product (GBW) | 1 | MHz | |||
| Slew Rate (SR) | G = 1 | 3.5 | V/µs | ||
| Settling Time (0.1%) | G = 1, 10V Step, CL = 100pF | 8 | µs | ||
| Temperature Range | Specified Range | –40 | +85 | °C | |
| Supply Voltage Range | ±2.25V to ±18V | V | |||
| Package Type | 14-pin SOIC |
Key Features
- FET Input: Low input bias current of 5pA.
- Low Offset Voltage: Input offset voltage as low as ±1.5mV.
- Wide Supply Range: Operates from ±2.25V to ±18V (or +4.5V to +36V single supply).
- Low Quiescent Current: 220µA per channel.
- Excellent Speed/Power: Gain-bandwidth product of 1MHz and slew rate of 3.5V/µs.
- Input to Positive Supply: Input common-mode voltage range includes the positive supply, suitable for single-supply applications.
- MicroSIZE Packages: Available in SOT-23-5, MSOP-8, SO-8, and DIP packages.
- Single, Dual, and Quad Versions: Identical specifications for maximum design flexibility.
Applications
The OPA4137UA/2K5E4 is suitable for a wide range of general-purpose applications, including but not limited to:
- Audio and video circuits
- Medical equipment
- Industrial control systems
- Test and measurement equipment
- Single-supply applications where the input common-mode voltage range is critical.
Power supply pins should be bypassed with 10nF ceramic capacitors or larger to ensure stable operation. The completely independent circuitry in dual and quad versions ensures normal performance even when one amplifier in the package is overdriven or short-circuited.
Q & A
- What is the input bias current of the OPA4137UA/2K5E4?
The input bias current is 5pA.
- What is the typical quiescent current per channel for the OPA4137UA/2K5E4?
The typical quiescent current per channel is 220µA.
- What is the gain-bandwidth product of the OPA4137UA/2K5E4?
The gain-bandwidth product is 1MHz.
- What is the slew rate of the OPA4137UA/2K5E4?
The slew rate is 3.5V/µs.
- What is the operating temperature range of the OPA4137UA/2K5E4?
The specified operating temperature range is –40°C to +85°C.
- What are the available package types for the OPA4137UA/2K5E4?
The OPA4137UA/2K5E4 is available in a 14-pin SOIC package.
- Is the OPA4137UA/2K5E4 RoHS compliant?
Yes, the OPA4137UA/2K5E4 is RoHS compliant.
- What is the typical settling time for a 10V step with a 100pF load capacitor?
The typical settling time is 8µs for 0.1% and 10µs for 0.01%.
- Can the OPA4137UA/2K5E4 be used in single-supply applications?
Yes, the OPA4137UA/2K5E4 can be used in single-supply applications due to its input common-mode voltage range including the positive supply.
- How should the power supply pins be bypassed for stable operation?
The power supply pins should be bypassed with 10nF ceramic capacitors or larger.
