Product details

Number of channels (#) 2 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 4.5 Vos (offset voltage @ 25 C) (Max) (mV) 0.015 GBW (Typ) (MHz) 3.6 Features EMI Hardened, Super Beta, e-Trim™ Slew rate (Typ) (V/us) 4 Rail-to-rail Out Offset drift (Typ) (uV/C) 0.04 Iq per channel (Typ) (mA) 0.22 Vn at 1 kHz (Typ) (nV/rtHz) 7.2 CMRR (Typ) (dB) 140 Rating Catalog Operating temperature range (C) -40 to 125 Input bias current (Max) (pA) 400 Output current (Typ) (mA) 25 Architecture Bipolar THD + N @ 1 kHz (Typ) (%) 0.0004
Number of channels (#) 2 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 4.5 Vos (offset voltage @ 25 C) (Max) (mV) 0.015 GBW (Typ) (MHz) 3.6 Features EMI Hardened, Super Beta, e-Trim™ Slew rate (Typ) (V/us) 4 Rail-to-rail Out Offset drift (Typ) (uV/C) 0.04 Iq per channel (Typ) (mA) 0.22 Vn at 1 kHz (Typ) (nV/rtHz) 7.2 CMRR (Typ) (dB) 140 Rating Catalog Operating temperature range (C) -40 to 125 Input bias current (Max) (pA) 400 Output current (Typ) (mA) 25 Architecture Bipolar THD + N @ 1 kHz (Typ) (%) 0.0004
VSSOP (DGK) 8 15 mm² 3 x 4.9
  • e-trim™ operational amplifier performance
    • Low offset voltage: 25 µV (max), 15 µV (max, high grade)
    • Low offset voltage drift: ±0.5 µV/°C (max), ±0.2 µV/°C (max, high grade)
  • Super beta inputs
    • Input bias current: 500 pA (max)
    • Input current noise: 110 fA/√Hz
  • Low noise
    • 0.1 to 10-Hz: 0.2 µVPP
    • Voltage noise: 7.2 nV/√Hz
  • AOL, CMRR, and PSRR: > 126 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
  • Available in standard grade (OPAx205A) and high grade (OPA2205, preview)
  • e-trim™ operational amplifier performance
    • Low offset voltage: 25 µV (max), 15 µV (max, high grade)
    • Low offset voltage drift: ±0.5 µV/°C (max), ±0.2 µV/°C (max, high grade)
  • Super beta inputs
    • Input bias current: 500 pA (max)
    • Input current noise: 110 fA/√Hz
  • Low noise
    • 0.1 to 10-Hz: 0.2 µVPP
    • Voltage noise: 7.2 nV/√Hz
  • AOL, CMRR, and PSRR: > 126 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
  • Available in standard grade (OPAx205A) and high grade (OPA2205, preview)

The OPA205, OPA2205, and OPA4205 (OPAx205) are the next generation of the industry-standard OPAx277 family. These devices are precision, bipolar e-trim™ operational amplifiers with super-beta inputs. The devices use TI’s proprietary trimming technology to achieve an input offset voltage of ±4 µV (typical) and ±2 µV (typical, high grade), and an input offset voltage drift of ±0.08 µV (typical) and ±0.04 µV (typical, high grade).

Designed on a bipolar process, the OPAx205 provide 3.6‑MHz gain bandwidth for a mere 220 µA of quiescent current. The devices also achieve a low voltage noise density of only 7.2 nV/√Hz at 1 kHz. The super-beta inputs of the OPAx205 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 OPAx205 makes these devices an excellent choice for systems requiring high precision and low power consumption, such as flow and pressure transmitters, portable data acquisition (DAQ) systems, and high-density source measurement units (SMU). The OPA206 and OPA2206 are related devices with the same op amp core, but with the additional feature of input overvoltage protection of ±40 V above the supplies.

The OPA205, OPA2205, and OPA4205 (OPAx205) are the next generation of the industry-standard OPAx277 family. These devices are precision, bipolar e-trim™ operational amplifiers with super-beta inputs. The devices use TI’s proprietary trimming technology to achieve an input offset voltage of ±4 µV (typical) and ±2 µV (typical, high grade), and an input offset voltage drift of ±0.08 µV (typical) and ±0.04 µV (typical, high grade).

Designed on a bipolar process, the OPAx205 provide 3.6‑MHz gain bandwidth for a mere 220 µA of quiescent current. The devices also achieve a low voltage noise density of only 7.2 nV/√Hz at 1 kHz. The super-beta inputs of the OPAx205 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 OPAx205 makes these devices an excellent choice for systems requiring high precision and low power consumption, such as flow and pressure transmitters, portable data acquisition (DAQ) systems, and high-density source measurement units (SMU). The OPA206 and OPA2206 are related devices with the same op amp core, but with the additional feature of input overvoltage protection of ±40 V above the supplies.

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* Data sheet OPAx205 2-µV, 0.04-µV/°C, Low-Power, Super Beta, Bipolar, e-trim™ Op Amps datasheet (Rev. E) PDF | HTML 09 Dec 2022
Technical article How to improve efficiency and precision with bipolar op amps 23 Jun 2021
Application note Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. C) PDF | HTML 13 Apr 2021
Application note High-Voltage Signal Conditioning for Low-Voltage ADCs (Rev. B) PDF | HTML 18 May 2015
Application note Precision Absolute Value Circuits 02 Oct 2000

Design & development

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Evaluation board

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User guide: PDF
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Simulation model

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Calculation tool

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Calculation tool

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Simulation tool

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