OPA2206

Low Noise Precision Amplifier

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Low Noise Precision Amplifier

1 Features

Integrated input overvoltage protection for supply voltages up to ±40 V

Electronic trim? Op amp performance

Low offset voltage: 15μV (maximum limit)

Low offset voltage drift: ±0.2μV/°C (maximum limit)

super beta input

Input bias current: 0.4 mA (maximum limit)

Input current noise: 110 fA/√Hz

low noise

0.1-Hz to 10 Hz: 0.2 μVPP

Voltage Noise: 8 mV/√Hz

AOL, CMRR and PSRR: >126 dB (full temperature range)

Gain Bandwidth Product: 3.6 MHz

Low quiescent current: 220μA (maximum limit)

Slew rate: 4V/µs

Overload Power Limiter

Rail-to-rail output

EMI/RFI filtered input

Wide power supply: 4.5 V to 36 V

Temperature range: –40°C to +125°C

Available in Advanced (OPA2206) and Standard (OPA2206A)

2 applications

Analog input module

Hybrid modules (AI, AO, DI, DO)

Laboratory and Field Instruments

Source Measure Unit (SMU)

Digital Multimeter (DMM)

Train Control and Management

String inverter

Data Acquisition (DAQ)

3 Instructions

The OPA2206 is the next generation of the industry standard OPAx277 family with the added feature of input overvoltage protection. The device is a precision bipolar, e-trimmed operational amplifier with a super beta input. The device uses TI's proprietary trimming technique to achieve an input bias voltage of ±2µV (typ) and an input bias voltage drift of ±0.04µV/°C (typ). Input overvoltage protection activates when the input signal exceeds the supply range and provides protection against 40 V of either supply. This feature eliminates the need for external cumbersome circuitry to prevent damage to the amplifier.

Designed in a bipolar process, the OPA2206 can deliver an ultra-high-speed power ratio of 3.6 MHz with only 220µa. The device also achieves a low voltage noise density of only 8 nV/√ at 1 kHz. Thanks to the super beta input, the OPA2206 has a very low input bias current of 100 pA (typ) and a current noise density of 110 fA/√Hz.

The high performance of the OPA2206 makes this device ideal for systems that require high accuracy and low power consumption, such as high-density analog input modules in programmable logic controllers, field and portable instrumentation systems, and source-measure units. The OPA2205 is a related product with the same op amp core, without input protection, but with improved broadband noise (7.2 nV/√Hz).

Shenzhen Yujixin Electronics Co., Ltd.

Contact: Mr. Xiao

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