Overview
The OPA2990IDR is a dual, high-voltage, low-power operational amplifier produced by Texas Instruments. It is part of the OPAx990 family, which includes the OPA990, OPA2990, and OPA4990. These devices are designed for high-voltage industrial applications, offering excellent DC precision and AC performance. The OPA2990IDR is available in an 8-pin SOIC (D) package and operates over a wide temperature range from –40°C to 125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOIC (D), 8 pins |
| Operating Temperature Range | –40°C to 125°C |
| Offset Voltage | ±300 µV (typ) |
| Offset Voltage Drift | ±0.6 µV/°C (typ) |
| Noise | 30 nV/√Hz at 1 kHz |
| Common-Mode Rejection Ratio | 115 dB |
| Bias Current | ±10 pA |
| Bandwidth | 1.1 MHz GBW |
| Slew Rate | 4.5 V/µs |
| Quiescent Current | 120 µA per amplifier |
| Supply Voltage Range | ±1.35 V to ±20 V, 2.7 V to 40 V |
| EMIRR Performance | 78 dB at 1.8 GHz |
Key Features
- Low offset voltage: ±300 µV
- Low offset voltage drift: ±0.6 µV/°C
- Low noise: 30 nV/√Hz at 1 kHz
- High common-mode rejection: 115 dB
- Low bias current: ±10 pA
- Rail-to-rail input and output
- MUX-friendly/comparator inputs
- Amplifier operates with differential inputs up to supply rail
- Amplifier can be used in open-loop or as comparator
- Wide bandwidth: 1.1-MHz GBW
- High slew rate: 4.5 V/µs
- Low quiescent current: 120 µA per amplifier
- Wide supply voltage range: ±1.35 V to ±20 V, 2.7 V to 40 V
- Robust EMIRR performance: 78 dB at 1.8 GHz
- Differential and common-mode input voltage range to supply rail
Applications
- Multiplexed data-acquisition systems
- Test and measurement equipment
- Motor drive: power stage and control modules
- Power delivery: UPS, server, and merchant network power
- ADC driver and reference buffer amplifier
- Programmable logic controllers
- Analog input and output modules
- High-side and low-side current sensing
- High precision comparator
Q & A
- What is the operating temperature range of the OPA2990IDR?
The operating temperature range of the OPA2990IDR is from –40°C to 125°C.
- What is the typical offset voltage of the OPA2990IDR?
The typical offset voltage of the OPA2990IDR is ±300 µV.
- What is the common-mode rejection ratio (CMRR) of the OPA2990IDR?
The CMRR of the OPA2990IDR is 115 dB.
- What is the bandwidth of the OPA2990IDR?
The bandwidth of the OPA2990IDR is 1.1 MHz GBW.
- What is the slew rate of the OPA2990IDR?
The slew rate of the OPA2990IDR is 4.5 V/µs.
- What is the quiescent current per amplifier of the OPA2990IDR?
The quiescent current per amplifier of the OPA2990IDR is 120 µA.
- What is the supply voltage range of the OPA2990IDR?
The supply voltage range of the OPA2990IDR is ±1.35 V to ±20 V, 2.7 V to 40 V.
- Can the OPA2990IDR be used as a comparator?
- What are some common applications of the OPA2990IDR?
The OPA2990IDR is commonly used in multiplexed data-acquisition systems, test and measurement equipment, motor drive systems, power delivery systems, and as ADC drivers and reference buffer amplifiers.
- What is the EMIRR performance of the OPA2990IDR at 1.8 GHz?
The EMIRR performance of the OPA2990IDR at 1.8 GHz is 78 dB.
