Overview
The OPA237NA/3KG4 is part of Texas Instruments' MicroAmplifier™ series, specifically designed for single-supply, battery-operated, and space-limited applications. This op-amp is ideal for use in portable devices, PCMCIA cards, medical instruments, and test equipment due to its compact size and robust performance characteristics. The OPA237 series offers low offset voltage, low quiescent current, and a wide supply range, making it versatile for various general-purpose applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage | VCM = 2.5V | ±250 | ±750 | µV | |
| Supply Range (Single Supply) | +2.7V | +36V | V | ||
| Supply Range (Dual Supply) | ±1.35V | ±18V | V | ||
| Quiescent Current (per amplifier) | 170 | 350 | µA | ||
| Bandwidth | 1.5MHz | ||||
| Operating Temperature Range | -40°C | +85°C | °C | ||
| Package Type | SOT-23-5 |
Key Features
- Micro-size, miniature packages: Available in SOT23-5 and SO-8 for single versions, and MSOP-8 and SO-8 for dual versions.
- Low offset voltage: Maximum of 750µV.
- Wide supply range: Operates from single supply (+2.7V to +36V) or dual supply (±1.35V to ±18V).
- Low quiescent current: Maximum of 350µA per amplifier.
- Wide bandwidth: 1.5MHz.
- High stability with capacitive loads: Can drive large capacitive loads up to 10,000pF in single-supply applications.
- Independent circuitry: Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.
Applications
- Battery-powered instruments
- Portable devices
- PCMCIA cards
- Medical instruments
- Test equipment
Q & A
- What is the input offset voltage of the OPA237NA/3KG4? The input offset voltage is ±250µV to ±750µV.
- What is the supply range for the OPA237NA/3KG4? It operates from +2.7V to +36V for single supply and ±1.35V to ±18V for dual supply.
- What is the quiescent current of the OPA237NA/3KG4? The quiescent current is a maximum of 350µA per amplifier.
- What is the bandwidth of the OPA237NA/3KG4? The bandwidth is 1.5MHz.
- What are the typical applications of the OPA237NA/3KG4? Typical applications include battery-powered instruments, portable devices, PCMCIA cards, medical instruments, and test equipment.
- What packages are available for the OPA237NA/3KG4? It is available in SOT23-5 and SO-8 packages.
- How stable is the OPA237NA/3KG4 with capacitive loads? It can drive large capacitive loads up to 10,000pF in single-supply applications.
- What is the operating temperature range of the OPA237NA/3KG4? The operating temperature range is -40°C to +85°C.
- Is the OPA237NA/3KG4 suitable for high-side and low-side current sensing? Yes, it can be used for both high-side and low-side current sensing.
- How should the power supply pins be bypassed for the OPA237NA/3KG4? The power supply pins should be bypassed with 10nF ceramic capacitors.
