Overview
The OPA4340UA/2K5G4, produced by Texas Instruments, is part of the OPA340 series of rail-to-rail CMOS operational amplifiers. These amplifiers are optimized for low-voltage, single-supply operation, making them ideal for a variety of applications. The OPA4340UA is a quad version, offering four independent operational amplifiers in a single package, which enhances design flexibility and minimizes crosstalk and interaction between channels.
The device operates on a single supply as low as 2.5V and features a wide input common-mode voltage range that extends 500mV below ground and 500mV above the positive supply. This, combined with its rail-to-rail output capability within 1mV of the supply rails, makes it highly versatile.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VS = 5V | ±150 | ±500 | µV | |
| Input Bias Current (IB) | ±0.2 | ±10 | pA | ||
| Power Supply Range (VS) | 2.7 | 5 | V | ||
| Operating Voltage Range | 2.5 | 5.5 | V | ||
| Quiescent Current (IQ) | IO = 0, VS = +5V | 750 | 950 | 1100 | µA |
| Bandwidth (BW) | 5.5 | MHz | |||
| Slew Rate (SR) | 6 | V/µs | |||
| Temperature Range | –40 | +85 | °C | ||
| Output Voltage Swing | RL = 100kΩ | 1 | 5 | mV |
Key Features
- Rail-to-Rail Output: Output voltage swing is within 1mV of the supply rails with a 100kΩ load.
- Low Voltage Operation: Operates on a single supply as low as 2.5V.
- High Bandwidth and Slew Rate: Features a bandwidth of 5.5 MHz and a slew rate of 6 V/µs.
- Low Quiescent Current: Quiescent current is only 750 µA per channel.
- Independent Channels: Dual and quad versions have completely independent circuitry for lowest crosstalk and freedom from interaction.
- Compact Packages: Available in various compact packages including SOT-23, SOIC, MSOP, and SSOP.
- Wide Input Common-Mode Voltage Range: Extends 500mV below ground and 500mV above the positive supply.
Applications
- Driving A/D Converters: Ideal for driving sampling analog-to-digital (A/D) converters.
- PCMCIA Cards: Suitable for use in PCMCIA card applications.
- Data Acquisition: Used in data acquisition systems.
- Process Control: Applied in process control systems.
- Audio Processing: Well-suited for audio processing applications.
- Communications: Utilized in communications equipment.
- Active Filters: Employed in active filter designs.
- Test Equipment: Used in various test equipment applications.
Q & A
- What is the minimum operating voltage for the OPA4340UA?
The minimum operating voltage for the OPA4340UA is 2.5V.
- What is the typical quiescent current per channel for the OPA4340UA?
The typical quiescent current per channel is 750 µA.
- What is the bandwidth of the OPA4340UA?
The bandwidth of the OPA4340UA is 5.5 MHz.
- What is the slew rate of the OPA4340UA?
The slew rate of the OPA4340UA is 6 V/µs.
- What are the typical applications of the OPA4340UA?
The OPA4340UA is typically used in driving A/D converters, PCMCIA cards, data acquisition, process control, audio processing, communications, active filters, and test equipment.
- What are the available package types for the OPA4340UA?
The OPA4340UA is available in 16-pin SSOP and 14-pin SOIC surface mount packages.
- What is the temperature range for the OPA4340UA?
The specified temperature range for the OPA4340UA is –40°C to +85°C, with an operating range of –55°C to +125°C.
- How does the OPA4340UA handle crosstalk between channels?
The dual and quad versions of the OPA4340UA feature completely independent circuitry for lowest crosstalk and freedom from interaction between channels.
- What is the output voltage swing capability of the OPA4340UA?
The output voltage swing is within 1mV of the supply rails with a 100kΩ load.
- What is the input common-mode voltage range for the OPA4340UA?
The input common-mode voltage range extends 500mV below ground and 500mV above the positive supply.
