Overview
The OPA2388IDGKR is a dual, 10-MHz, CMOS, zero-drift, zero-crossover, true rail-to-rail input and output (RRIO) precision operational amplifier produced by Texas Instruments. This device is part of the OPAx388 family, which includes the OPA388 and OPA4388. The OPA2388 is designed to offer ultra-low offset voltage, zero drift, and high common-mode rejection ratio (CMRR), making it suitable for precision applications.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Input Offset Voltage (VOS) | ±0.25 | µV |
| Input Offset Voltage Drift (dVOS/dT) | ±0.005 | µV/°C |
| Common-Mode Rejection Ratio (CMRR) | 140 dB | |
| Input Voltage Noise Density (eN) | 7.0 | nV/√Hz at 1 kHz |
| Gain Bandwidth (GBW) | 10 MHz | |
| Slew Rate (SR) | 5 V/µs | |
| Settling Time (tS) to 0.01% | 2 µs | |
| Supply Voltage Range | 2.5 V to 5.5 V (single supply), ±1.25 V to ±2.75 V (dual supply) | |
| Quiescent Current per Amplifier | 1.7 mA to 2.6 mA | |
| Package Options | SOIC-8, VSSOP-8 |
Key Features
- Ultra-low offset voltage: ±0.25 µV
- Zero drift: ±0.005 µV/°C
- Zero crossover and true RRIO
- Low noise: 7.0 nV√Hz at 1 kHz, no 1/f noise
- Fast settling time: 2 µs to 0.01%
- High CMRR: 140 dB
- EMI/RFI filtered inputs
- Industry-standard packages: SOIC-8 and VSSOP-8
Applications
- Merchant network and server power supplies
- Notebook PC power adapter design
- Weigh scales
- Lab and field instrumentation
- Battery testing
- Electronic thermometers and temperature transmitters
Q & A
- What is the input offset voltage of the OPA2388?
The input offset voltage of the OPA2388 is typically ±0.25 µV.
- What is the input offset voltage drift of the OPA2388?
The input offset voltage drift of the OPA2388 is typically ±0.005 µV/°C.
- What is the common-mode rejection ratio (CMRR) of the OPA2388?
The CMRR of the OPA2388 is 140 dB.
- What is the gain bandwidth of the OPA2388?
The gain bandwidth of the OPA2388 is 10 MHz.
- What is the slew rate of the OPA2388?
The slew rate of the OPA2388 is 5 V/µs.
- What is the settling time of the OPA2388 to 0.01%?
The settling time of the OPA2388 to 0.01% is 2 µs.
- What are the supply voltage ranges for the OPA2388?
The supply voltage ranges for the OPA2388 are 2.5 V to 5.5 V (single supply) and ±1.25 V to ±2.75 V (dual supply).
- What are the typical quiescent current values for the OPA2388?
The typical quiescent current values for the OPA2388 range from 1.7 mA to 2.6 mA.
- In what packages is the OPA2388 available?
The OPA2388 is available in SOIC-8 and VSSOP-8 packages.
- What are some common applications of the OPA2388?
The OPA2388 is commonly used in merchant network and server power supplies, notebook PC power adapter design, weigh scales, lab and field instrumentation, battery testing, and electronic thermometers and temperature transmitters.
