Overview
The OPA2387DSGR, part of the OPAx387 family of precision amplifiers from Texas Instruments, is designed to deliver state-of-the-art performance with unparalleled long-term stability. This amplifier features zero-drift technology, ensuring minimal offset voltage and drift. With a low quiescent current of 570 µA per amplifier, it achieves a bandwidth of 5.7 MHz, making it ideal for high-precision applications such as 16-bit to 24-bit analog to digital converters (ADCs).
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Series | OPA2387 |
| Number of Channels | 2 Channel |
| GBP - Gain Bandwidth Product | 5.7 MHz |
| SR - Slew Rate | 2.8 V/us |
| CMRR - Common Mode Rejection Ratio | 140 dB |
| Ib - Input Bias Current | 150 pA (maximum, tested) |
| Vos - Input Offset Voltage | ±2 µV (maximum, tested) |
| en - Input Voltage Noise Density | 8.5 nV/√Hz |
| Supply Voltage - Max | 5.5 V |
| Supply Voltage - Min | 1.7 V |
| Operating Supply Current | 570 µA |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +125°C |
| Shutdown | No Shutdown |
| Mounting Style | SMD/SMT |
| Moisture Sensitive | Yes |
| Output Type | Rail to Rail |
| PSRR - Power Supply Rejection Ratio | 0.05 µV/V |
| THD plus Noise | 0.002 % |
Key Features
- Ultra-low offset voltage: ±2 µV (maximum, tested)
- Zero drift: ±0.003 µV/°C
- Low-input bias current: 150 pA (maximum, tested)
- Low noise: 8.5 nV√ Hz at 1 kHz
- No 1/f noise: 177 nV PP (0.1 Hz to 10 Hz)
- Common-mode input range ±100 mV beyond supply rails
- Gain bandwidth: 5.7 MHz
- Quiescent current: 570 µA per amplifier
- Single supply: 1.7 V to 5.5 V, Dual supply: ±0.85 V to ±2.75 V
- EMI and RFI filtered inputs
Applications
The OPA2387DSGR is particularly suited for high-precision applications, including 16-bit to 24-bit analog to digital converters (ADCs), precision instrumentation, medical devices, and any system requiring low noise and high stability. Its flat bias current over temperature makes it ideal for high input impedance applications where minimal calibration is necessary.
Q & A
- What is the gain bandwidth product of the OPA2387DSGR? The gain bandwidth product is 5.7 MHz.
- What is the input offset voltage of the OPA2387DSGR? The input offset voltage is ±2 µV (maximum, tested).
- What is the quiescent current of the OPA2387DSGR? The quiescent current is 570 µA per amplifier.
- What is the operating temperature range of the OPA2387DSGR? The operating temperature range is -40°C to +125°C.
- Does the OPA2387DSGR have EMI and RFI filtered inputs? Yes, it does.
- What is the common-mode input range of the OPA2387DSGR? The common-mode input range is ±100 mV beyond supply rails.
- What is the slew rate of the OPA2387DSGR? The slew rate is 2.8 V/us.
- Is the OPA2387DSGR moisture sensitive? Yes, it is.
- What is the output type of the OPA2387DSGR? The output type is rail to rail.
- What is the power supply rejection ratio (PSRR) of the OPA2387DSGR? The PSRR is 0.05 µV/V.
