Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

The OPA2191IDR is a low-power, 36V, e-trim™ CMOS precision operational amplifier introduced by Texas Instruments, packaged in an SOIC-8 package, and part of the OPAx191 series (including the OPA191, OPA2191, and OPA4191). This chip features ultra-low offset voltage, high common-mode rejection ratio (CMRR), and rail-to-rail input/output (RRIO) characteristics, making it widely applicable in industrial control, medical equipment, high-precision instruments, and audio systems.

OPA2191IDR Core Features

• Dual CMOS inputs with 1 kHz noise as low as 15 nV/√Hz

• Ultra-low offset voltage: typical ±5 µV, maximum ±25 µV

• Ultra-low drift: ±0.1 µV/°C (typical), with excellent long-term stability

• Rail-to-rail input/output, allowing signals to swing to the power supply rails, enhancing dynamic range

• Wide power supply range: single supply 4.5 V to 36 V, dual supply ±2.25 V to ±18 V

• Low quiescent current: 140 µA per channel, suitable for battery-powered or power-constrained systems

• High common-mode rejection: 140 dB; open-loop gain 145 dB; PSRR 130 dB

• Bandwidth: 2.5 MHz GBW; slew rate 5 V/µs; capable of driving a 1 nF capacitive load stably

• EMI/RFI filtered input terminals, enhancing immunity to interference in harsh industrial environments

• Package: 8-pin SOIC (tape and reel) 

OPA2191IDR Applications

• Analogue input modules

• Mixed-signal modules (AI, AO, DI, DO)

• Data acquisition (DAQ)

• Source measurement units (SMU)

• Pressure transmitters

• Train control and management systems

• Laboratory and field instruments

• 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.