TI OPA2206ADR

OPA206, OPA2206, and OPA4206 (OPAx206) are the next-generation successors to the industry-standard OPAx277 family, with the addition of input overvoltage protection. These precision bipolar e-trim™ op amps with super-beta inputs leverage TI's proprietary trimming technology to achieve a typical input offset voltage of ±4 μV and a typical input offset voltage drift of ±0.08 μV/°C. When the input signal exceeds the supply range, the input overvoltage protection activates to protect the amplifier against voltages up to 40 V beyond either supply rail. This feature eliminates the need for external circuitry to prevent amplifier damage, reducing board space and cost.

The OPAx206 delivers a speed-to-power ratio of 3.6 MHz at only 220 μA (typical). These devices also achieve a low voltage noise density of just 8 nV/√Hz at 1 kHz. The OPAx206's super-beta inputs feature a very low typical input bias current of 100 pA and a current noise density of 110 fA/√Hz.

The high performance of the OPAx206 makes it an ideal choice for systems requiring high precision 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 OPA205 and OPA2205 are related devices sharing the same op amp core but without input protection, offering improved wideband noise performance (7.2 nV/√Hz).

• Integrated input overvoltage protection, withstands ±40 V beyond supply voltage
• e-trim™ op amp performance
  • Low offset voltage: 25 μV (max)
  • Low offset voltage drift: ±0.5 μV/°C (max)
• Super-beta inputs
  • Input bias current: 500 pA (max)
  • Input current noise: 110 fA/√Hz
• Low noise
  • 0.1 Hz to 10 Hz: 0.2 μVₚ₋ₚ
  • Voltage noise: 8 nV/√Hz
• AOL, CMRR, and PSRR: > 124 dB (full temperature range)
• Gain bandwidth product: 3.6 MHz
• Low quiescent current: 240 μA (max)
• Slew rate: 4 V/μs
• Overload power limiter
• Rail-to-rail output
• EMI and RFI filtered inputs
• Wide supply range: 4.5 V to 36 V
• Temperature range: -40°C to +125°C

• Analog input modules
• Mixed modules (AI, AO, DI, DO)
• Laboratory and field instruments
• Source measure units (SMU)
• Digital multimeters (DMM)
• Train control and management
• String inverters
• Data acquisition (DAQ)