OPA206ADR

The OPA206, OPA2206, and OPA4206 (OPAx206) are the next generation of the industry-standard OPAx277 family with the added feature of input overvoltage protection. These precision, bipolar, e‑trim™ op amps with super-beta inputs use TI’s proprietary trimming technology to achieve an input offset voltage of ±4 µV (typical) and an input offset voltage drift of ±0.08 µV/°C (typical). The input overvoltage protection activates when the input signal exceeds the supply range and protects up to 40 V beyond either supply. This feature eliminates the need for external circuitry to prevent amplifier damage, thereby reducing size and costs. The OPAx206 provide a speed-to-power ratio of 3.6 MHz for a mere 220 µA (typical). These devices also achieve a low voltage noise density of only 8 nV/√Hz at 1 kHz. The super-beta inputs of the OPAx206 have a very low input bias current of 100 pA (typical) and a current noise density of 110 fA/√Hz. The high performance of the OPAx206 make these devices an excellent 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 measurement units.

Applications

• Analog input module
• Mixed module (AI,AO,DI,DO)
• Lab and field Instrumentation
• Source measurement unit (SMU)
• Digital multimeter (DMM)
• Train control and management
• String inverter
• Data acquisition (DAQ)

Key features

• Integrated input overvoltage protection up to ±40 V beyond supplies
• e-trim™ operational amplifier 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 µVPP
• 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: 4.5 V to 36 V
• Temperature range: -40°C to +125°C