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OPA2991SIRUGR is a dual-channel, 40V, 4.5MHz bandwidth low-power operational amplifier suitable for high-precision signal conditioning, industrial control, and automotive electronics applications. This device is packaged in a 10-X2QFN (2×1.5mm) package, supports rail-to-rail input/output (RRIO), and features excellent DC accuracy and low noise characteristics, making it an ideal choice for sensor interfaces, data acquisition systems, and motor control circuits.

OPA2991SIRUGR Features

• Low offset voltage: ±125µV

• Low offset voltage drift: ±0.3µV/°C

• Low noise: 10.8nV/√Hz at 1 kHz

• High common-mode rejection: 130dB

• Low bias current: ±10 pA

• Rail-to-rail input and output

• Wide bandwidth: 4.5 MHz GBW

• High slew rate: 21 V/µs

• High capacitive load drive: 1 nF

• Supports multiplexer/comparator inputs

– The amplifier operates with differential inputs up to the power supply rail

– The amplifier can be used in open-loop mode or as a comparator

• Low quiescent current: 560 µA per amplifier

• Wide supply voltage range: ±1.35 V to ±20 V, 2.7 V to 40 V

• Robust EMIRR performance: EMI/RFI filters on input and power pins

• Differential and common-mode input voltage range relative to the power rail

OPA2991SIRUGR Parameters

Number of channels: 2

Supply voltage range: 2.7V to 40V (single supply)  

Input offset voltage: ±125µV (typical), 0.75mV (maximum)  

Gain-bandwidth product (GBW): 4.5MHz  

Slew rate: 21V/µs  

Output current: ±75mA  

Package: 10-X2QFN (2×1.5mm)

OPA2991SIRUGR Applications

• Low-power audio preamplifiers

• Multiplexed data acquisition systems

• Test and measurement equipment

• ADC driver amplifiers

• SAR ADC reference buffers

• Programmable logic controllers

• High-side and low-side current sensing

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.