Overview
The OPA2130UA/2K5 is a dual-channel, low-power, precision FET-input operational amplifier produced by Texas Instruments. This component is part of the OPAx130 series, which includes single, dual, and quad versions, offering maximum design flexibility. The OPA2130UA/2K5 is designed for general-purpose, portable, and battery-operated applications, particularly those with high source impedance. It features input cascode circuitry that provides excellent common-mode rejection and is free from phase inversion and overload problems common in other FET-input op amps.
Key Specifications
| Parameter | Min | Max | Unit | ||
|---|---|---|---|---|---|
| Supply Voltage (Dual Supply) | ±2.25 | ±15 | ±18 | V | |
| Supply Voltage (Single Supply) | 4.5 | 30 | 36 | V | |
| Operating Temperature | -40 | 25 | 85 | °C | |
| Input Offset Voltage (VOS) | ±0.2 | - | ±1 | mV | |
| Input Offset Voltage Drift (dVOS/dT) | ±2 | - | ±10 | μV/°C | |
| Power-Supply Rejection Ratio (PSRR) | ±2 | - | ±20 | μV/V | |
| Input Bias Current (IB) | ±5 | - | ±20 | pA | |
| Quiescent Current (IQ) per Amplifier | 530 | - | 650 | μA | |
| Output Voltage Swing (RL = 10kΩ) | (V+) - 2 | (V+) - 1.5 | (V-)+1 | (V-)+1.2 | V |
| Short-Circuit Current | - | - | ±18 | mA |
Key Features
- Low quiescent current: 530μA per amplifier
- Low input offset voltage: ±1mV max
- High open-loop gain: 123dB (RL = 10kΩ)
- High common-mode rejection ratio (CMRR): 90dB min
- FET input with low input bias current: IB = 20pA max
- Excellent bandwidth: 1MHz
- Wide supply range: ±2.25V to ±18V (dual supply), 4.5V to 36V (single supply)
- Single, dual, and quad versions available for design flexibility
Applications
- Data acquisition (DAQ)
- Flow transmitter
- Lab and field instrumentation
- Electrocardiogram (ECG)
Q & A
- What is the typical quiescent current of the OPA2130UA/2K5?
The typical quiescent current is 530μA per amplifier.
- What is the maximum input offset voltage of the OPA2130UA/2K5?
The maximum input offset voltage is ±1mV.
- What is the common-mode rejection ratio (CMRR) of the OPA2130UA/2K5?
The CMRR is 90dB minimum.
- What is the bandwidth of the OPA2130UA/2K5?
The bandwidth is 1MHz.
- What is the supply voltage range for the OPA2130UA/2K5?
The supply voltage range is ±2.25V to ±18V for dual supply and 4.5V to 36V for single supply.
- What types of packages are available for the OPAx130 series?
The OPAx130 series is available in single, dual, and quad versions.
- What are some common applications of the OPA2130UA/2K5?
Common applications include data acquisition, flow transmitters, lab and field instrumentation, and electrocardiograms (ECG).
- What is the input bias current of the OPA2130UA/2K5?
The input bias current is approximately 5pA at room temperature and increases with temperature.
- How does the OPA2130UA/2K5 handle high source impedance?
The OPA2130UA/2K5 is designed to handle high source impedance effectively, making it suitable for applications with such requirements.
- What is the operating temperature range of the OPA2130UA/2K5?
The operating temperature range is -40°C to 85°C.
