OP1177ARZ vs OP777ARZ vs TLE2061AID Comparison

The OP1177ARZ is a low input bias current Operational Amplifier featuring extremely low offset voltage and drift, low noise and low power consumption. Outputs are stable with capacitive loads of over 1000pF with no external compensation. Supply current is less than 500µA per amplifier at 30V. Internal 500R series resistors protect the inputs, allowing input signal levels several volts beyond either supply without phase reversal. It offers the widest specified temperature range of any high precision amplifier in surface-mount packaging. All versions are fully specified for operation from -40°C to +125°C for the most demanding operating environments.

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60µV Maximum low offset voltage

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0.7µV/°C Maximum very low offset voltage drift

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2nA Maximum low input bias current

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8nV/√Hz Typical low noise

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400µA Low supply current

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Unity gain stable

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No phase reversal

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Inputs internally protected beyond supply voltage

The OP777ARZ is a Single Precision Operational Amplifier features micropower operation and rail-to-rail output ranges. This amplifier provides improved performance over the industry standard OP07 with ±15V supplies and offers the further advantage of true single-supply operation down than any other high-voltage precision bipolar amplifier. Outputs are stable with capacitive loads of over 500pF. 500R series resistors protect the inputs, allowing input signal levels several volts above the positive supply without phase reversal. Applications for this amplifier include both line-powered and portable instrumentation, remote sensor signal conditioning and precision filters.

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Low offset voltage (100V maximum)

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Low input bias current (10nA maximum)

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Single-supply operation (3 to 30V)

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Dual-supply operation (±5 to ±15V)

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Low supply current (300A/amplifier maximum)

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Unity gain stable

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No phase reversal

The TLE206x series of low-power JFET-input operational amplifiers doubles the bandwidth of the earlier generation TL06x and TL03x BiFET families without significantly increasing power consumption. Texas Instruments Excalibur process also delivers a lower noise floor than the TL06x and TL03x. On-chip zener trimming of offset voltage yields precision grades for dc-coupled applications. The TL206x devices are pin-compatible with other TI BiFETs; they can be used to double the bandwidth of TL06x and TL03x circuits, or to reduce power consumption of TL05x, TL07x, and TL08x circuits by nearly 90%. BiFET operational amplifiers offer the inherently-higher input impedance of the JFET-input transistors, without sacrificing the output drive associated with bipolar amplifiers. This makes them better suited for interfacing with high-impedance sensors or very low-level ac signals. They also feature inherently better ac response than bipolar or CMOS devices having comparable power consumption. The TLE206x family features a high-output-drive circuit capable of driving 100- loads at supplies as low as ±5 V. This makes them uniquely suited for driving transformer loads in modems and other applications requiring good ac characteristics, low power, and high output drive. Because BiFET operational amplifiers are designed for use with dual power supplies, care must be taken to observe common-mode input voltage limits and output swing when operating from a single supply. DC biasing of the input signal is required and loads should be terminated to a virtual ground node at mid-supply. Texas Instruments TLE2426 integrated virtual ground generator is useful when operating BiFET amplifiers from single supplies. The TLE206x are fully specified at ±15 V and ±5 V. For operation in low-voltage and/or single-supply systems, Texas Instruments LinCMOS families of operational amplifiers (TLC- and TLV-prefixes) are recommended. When moving from BiFET to CMOS amplifiers, particular attention should be paid to slew rate and bandwidth requirements, and output loading. The Texas Instrument TLV2432 and TLV2442 CMOS operational amplifiers are excellent choices to consider.