Overview
The OPA4234UA/2K5G4 from Texas Instruments is a quad-channel, general-purpose operational amplifier designed for low-cost, single-supply, low-voltage applications. Fabricated on a state-of-the-art CMOS process, these op amps are optimized for low-power consumption and high performance. They are particularly suited for a wide range of applications requiring rail-to-rail input and output operation, high bandwidth, and low noise.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VCM = 2.5V | ±40 | ±100 | ±250 | µV |
| Input Bias Current (IB) | VCM = 2.5V | –15 | –30 | –50 | nA |
| Power Supply Range (VS) | 2.7 | 36 | V | ||
| Quiescent Current (IQ) | IO = 0, VS = +5V | 250 | 300 | µA | |
| Gain-Bandwidth Product (GBW) | CL = 100pF | 0.35 | MHz | ||
| Slew Rate (SR) | 0.2 | V/µs | |||
| Operating Temperature Range | –40 | 85 | °C | ||
| Storage Temperature Range | –55 | 125 | °C |
Key Features
- Low power consumption with a quiescent current of 250µA to 300µA per amplifier.
- Wide supply range: Single supply from 2.7V to 36V and dual supply from ±1.35V to ±18V.
- Rail-to-rail input and output operation, allowing the output to swing to within 50mV of the supply rails.
- High bandwidth with a gain-bandwidth product of 0.35MHz and a slew rate of 0.2V/µs.
- Low input offset voltage and input bias current, making it suitable for precision applications.
- Excellent phase margin and stability with high load capacitance.
- Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.
- Available in various surface-mount packages including SO-14 and TSSOP-14.
Applications
- Driving Analog-to-Digital (A/D) converters and providing I/V conversion at the output of Digital-to-Analog (D/A) converters.
- Data acquisition and audio processing.
- Communications and active filter designs.
- Test equipment and general-purpose analog circuitry.
- PCMCIA cards and other low-power, low-voltage applications.
Q & A
- What is the typical quiescent current of the OPA4234UA/2K5G4?
The typical quiescent current is 250µA to 300µA per amplifier.
- What is the operating temperature range of the OPA4234UA/2K5G4?
The operating temperature range is from –40°C to +85°C.
- What are the available package options for the OPA4234UA/2K5G4?
The op amp is available in SO-14 and TSSOP-14 surface-mount packages.
- What is the gain-bandwidth product of the OPA4234UA/2K5G4?
The gain-bandwidth product is 0.35MHz.
- Is the OPA4234UA/2K5G4 suitable for high load capacitance applications?
Yes, it has excellent phase margin and stability with high load capacitance.
- What is the slew rate of the OPA4234UA/2K5G4?
The slew rate is 0.2V/µs.
- Can the OPA4234UA/2K5G4 operate on a single supply?
Yes, it can operate on a single supply from 2.7V to 36V.
- What are some common applications of the OPA4234UA/2K5G4?
Common applications include driving A/D converters, data acquisition, audio processing, communications, and test equipment.
- How does the OPA4234UA/2K5G4 perform in terms of input offset voltage?
The input offset voltage is typically ±100µV, making it suitable for precision applications.
- Is the OPA4234UA/2K5G4 available in tape and reel packaging?
Yes, it is available in tape and reel packaging, such as the /2K5 option which indicates 2500 devices per reel.
