Overview
The OPA2342UA/2K5, produced by Texas Instruments, is a dual-channel, low-cost, low-power operational amplifier designed for miniature applications. It belongs to the OPA342 series, which includes single, dual, and quad versions, offering design flexibility. These rail-to-rail CMOS operational amplifiers are ideal for various applications requiring high-speed operation and low power consumption.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VCM = VS/2 | ±1 | ±6 | mV | |
| Input Offset Voltage vs Temperature (dVOS/dT) | ±3 | µV/°C | |||
| Power Supply Rejection Ratio (PSRR) | VS = 2.7V to 5.5V, VCM < (V+) -1.8V | 30 | 200 | µV/V | |
| Input Bias Current (IB) | ±0.2 | pA | |||
| Quiescent Current (IQ) per amplifier | IO = 0A | 150 | 250 | µA | |
| Operating Temperature Range | -40 | +85 | °C | ||
| Storage Temperature Range | -65 | +150 | °C | ||
| Thermal Resistance (θJA) | MSOP-8 Surface Mount | 150 | °C/W |
Key Features
- Rail-to-rail input and output, enabling operation over the full power supply range.
- Low power consumption with a quiescent current of 250µA max per amplifier.
- High-speed operation with a bandwidth of 1 MHz.
- Low input bias current of 0.2 pA.
- Completely independent circuitry in dual and quad versions for minimal crosstalk.
- Available in various packages including MSOP-8, SO-8, and TSSOP-14.
Applications
The OPA2342UA/2K5 is well-suited for a variety of applications, including:
- Driving sampling Analog-to-Digital Converters (ADCs).
- General-purpose and audio applications.
- Providing I/V conversion at the output of Digital-to-Analog Converters (DACs).
- Low-power, miniature electronic designs.
Q & A
- What is the input offset voltage of the OPA2342UA/2K5?
The input offset voltage is ±1 mV to ±6 mV. - What is the quiescent current per amplifier?
The quiescent current per amplifier is 150 µA to 250 µA. - What is the operating temperature range of the OPA2342UA/2K5?
The operating temperature range is -40°C to +85°C. - What are the available package types for the OPA2342UA/2K5?
The available packages include MSOP-8, SO-8, and TSSOP-14. - Is the OPA2342UA/2K5 suitable for high-speed applications?
Yes, it has a bandwidth of 1 MHz, making it suitable for high-speed applications. - What is the input bias current of the OPA2342UA/2K5?
The input bias current is ±0.2 pA. - Can the OPA2342UA/2K5 be used in audio applications?
Yes, it is well-suited for general-purpose and audio applications. - What is the power supply rejection ratio (PSRR) of the OPA2342UA/2K5?
The PSRR is 30 µV/V to 200 µV/V. - Is the OPA2342UA/2K5 RoHS compliant?
Yes, it is RoHS compliant as defined by Texas Instruments. - What is the thermal resistance (θJA) of the MSOP-8 package?
The thermal resistance (θJA) of the MSOP-8 package is 150 °C/W.
