Product details

Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 12 Total supply voltage (Min) (+5V=5, +/-5V=10) 4 Rail-to-rail In to V-, Out GBW (Typ) (MHz) 20 Slew rate (Typ) (V/us) 30 Vos (offset voltage @ 25 C) (Max) (mV) 3 Iq per channel (Typ) (mA) 4.3 Vn at 1 kHz (Typ) (nV/rtHz) 10 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 4 Features Input bias current (Max) (pA) 200 CMRR (Typ) (dB) 94 Output current (Typ) (mA) 40 Architecture CMOS
Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 12 Total supply voltage (Min) (+5V=5, +/-5V=10) 4 Rail-to-rail In to V-, Out GBW (Typ) (MHz) 20 Slew rate (Typ) (V/us) 30 Vos (offset voltage @ 25 C) (Max) (mV) 3 Iq per channel (Typ) (mA) 4.3 Vn at 1 kHz (Typ) (nV/rtHz) 10 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 4 Features Input bias current (Max) (pA) 200 CMRR (Typ) (dB) 94 Output current (Typ) (mA) 40 Architecture CMOS
SOIC (D) 8 19 mm² 3.91 x 4.9 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6
  • BANDWIDTH: 20MHz
  • SLEW RATE: 30V/µs
  • FAST 16-Bit SETTLING TIME
  • LOW NOISE: 6nV/Hz (typ) at 100kHz
  • EXCELLENT CMRR, PSRR, and AOL
  • RAIL-TO-RAIL OUTPUT
  • CM RANGE INCLUDES GND
  • THD+N: 0.0003% (typ) at 1kHz
  • QUIESCENT CURRENT: 5.5mA/ch (max)
  • SUPPLY VOLTAGE: 4V to 12V
  • SHUTDOWN MODE (OPAx726): 6µA/ch
  • APPLICATIONS
    • OPTICAL NETWORKING
    • TRANSIMPEDANCE AMPLIFIERS
    • INTEGRATORS
    • ACTIVE FILTERS
    • A/D CONVERTER BUFFERS
    • I/V CONVERTER FOR DACs
    • PORTABLE AUDIO
    • PROCESS CONTROL
    • TEST EQUIPMENT

All trademarks are the property of their respective owners.

  • BANDWIDTH: 20MHz
  • SLEW RATE: 30V/µs
  • FAST 16-Bit SETTLING TIME
  • LOW NOISE: 6nV/Hz (typ) at 100kHz
  • EXCELLENT CMRR, PSRR, and AOL
  • RAIL-TO-RAIL OUTPUT
  • CM RANGE INCLUDES GND
  • THD+N: 0.0003% (typ) at 1kHz
  • QUIESCENT CURRENT: 5.5mA/ch (max)
  • SUPPLY VOLTAGE: 4V to 12V
  • SHUTDOWN MODE (OPAx726): 6µA/ch
  • APPLICATIONS
    • OPTICAL NETWORKING
    • TRANSIMPEDANCE AMPLIFIERS
    • INTEGRATORS
    • ACTIVE FILTERS
    • A/D CONVERTER BUFFERS
    • I/V CONVERTER FOR DACs
    • PORTABLE AUDIO
    • PROCESS CONTROL
    • TEST EQUIPMENT

All trademarks are the property of their respective owners.

The OPA725 and OPA726 series op amps use a state-of-the-art 12V analog CMOS process, and combine outstanding ac performance with low bias current and excellent CMRR, PSRR, and AOL. The 20MHz Gain-Bandwidth (GBW) Product is achieved by using a proprietary and patent-pending output stage design. These characteristics allow excellent 16-bit settling times for driving 16-bit Analog-to-Digital Converters (ADCs).

Excellent ac characteristics, such as 20MHz GBW, 30V/µs slew rate and 0.0003% THD+N make the OPA725 and OPA726 well-suited for communication, high-end audio, and active filter applications. With bias current of less than 200pA, they are well-suited for use as transimpedance (I/V-conversion) amplifiers for monitoring optical power in ONET applications.

The OPA725 and OPA726 op amps can be used in single-supply applications from 4V up to 12V, or dual-supply from ±2V to ±6V. The output swings to within 150mV of the rails, maximizing dynamic range. The shutdown versions (OPAx726) reduce the quiescent current to less than 6µA and feature a reference pin for easy shutdown operation with standard CMOS logic in dual supply applications.

The OPA725 (single) is available in SOT23-5 and SO-8 [ackages, and the OPA2725 (dual) is available in MSOP-8 (Q1 ’04) and SO-8 packages. The OPA726 (single with shutdown) is available in MSOP-8 and SO-8. The OPA2726 (dual with shutdown) is available in MSOP-10. All versions are specified for operation from –40°C to +125°C.

The OPA725 and OPA726 series op amps use a state-of-the-art 12V analog CMOS process, and combine outstanding ac performance with low bias current and excellent CMRR, PSRR, and AOL. The 20MHz Gain-Bandwidth (GBW) Product is achieved by using a proprietary and patent-pending output stage design. These characteristics allow excellent 16-bit settling times for driving 16-bit Analog-to-Digital Converters (ADCs).

Excellent ac characteristics, such as 20MHz GBW, 30V/µs slew rate and 0.0003% THD+N make the OPA725 and OPA726 well-suited for communication, high-end audio, and active filter applications. With bias current of less than 200pA, they are well-suited for use as transimpedance (I/V-conversion) amplifiers for monitoring optical power in ONET applications.

The OPA725 and OPA726 op amps can be used in single-supply applications from 4V up to 12V, or dual-supply from ±2V to ±6V. The output swings to within 150mV of the rails, maximizing dynamic range. The shutdown versions (OPAx726) reduce the quiescent current to less than 6µA and feature a reference pin for easy shutdown operation with standard CMOS logic in dual supply applications.

The OPA725 (single) is available in SOT23-5 and SO-8 [ackages, and the OPA2725 (dual) is available in MSOP-8 (Q1 ’04) and SO-8 packages. The OPA726 (single with shutdown) is available in MSOP-8 and SO-8. The OPA2726 (dual with shutdown) is available in MSOP-10. All versions are specified for operation from –40°C to +125°C.

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Technical documentation

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Type Title Date
* Data sheet OPA725 and OPA726 Series: Very Low-Noise, High-Speed, 12V CMOS Op Amp datasheet (Rev. B) 08 Jan 2004
Technical article What is an op amp? 21 Jan 2020
Technical article How to lay out a PCB for high-performance, low-side current-sensing designs 06 Feb 2018
Technical article Low-side current sensing for high-performance cost-sensitive applications 22 Jan 2018
Technical article Voltage and current sensing in HEV/EV applications 22 Nov 2017
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Application note High-Voltage Signal Conditioning for Low-Voltage ADCs (Rev. B) 18 May 2015
Application note OPA725, OPA2725, OPA726, OPA2726 EMI Immunity Performance (Rev. A) 02 Nov 2012
Application note High-Voltage Signal Conditioning for Low Voltage ADCs 15 Jun 2004

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

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PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

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Design tool

CIRCUIT060013 — Inverting amplifier with T-network feedback circuit

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Design tool

CIRCUIT060015 — Adjustable reference voltage circuit

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SOIC (D) 8 View options
SOT-23 (DBV) 5 View options

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