OP470GPZ vs OPA4227UA vs TLE2064CN Comparison

The OP470GPZ is a high-performance monolithic quad Operational Amplifier features exceptionally low voltage noise, offering comparable performance to PMI"s industry standard OP27. The OP470 features an input offset voltage below 0.4mV, excellent for a quad op-amp and an offset drift under 2µV/°C, guaranteed over the full military temperature range. Input bias is under 25nA which reduces errors due to signal source resistance. The OP470"s CMR of over 110dB and PSRR of less than 1.8µV/V significantly reduce errors due to ground noise and power supply fluctuations. Power consumption of the quad OP470 is half that of four OP27s, a significant advantage for power conscious applications. The OP470 is unity-gain stable with a gain-bandwidth product of 6MHz and a slew rate of 2V/µs.

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Industry standard quad pinouts

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5nV/√Hz at 1kHz Maximum low noise

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2µV/°C Maximum low offset voltage drift

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1000V/mV Minimum very high gain

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110dB Minimum outstanding CMR

The OPA4227UA is a high precision, low noise Operational Amplifier combines low noise and wide bandwidth with high precision to make them the ideal choice for applications requiring both AC and precision DC performance. The OPAx227 is unity-gain stable and features high slew rate (2.3V/µs) and wide bandwidth (8MHz). The OPAx228 is optimized for closed-loop gains of 5 or greater and offers higher speed with a slew rate of 10V/µs and a bandwidth of 33MHz. The OPAx227 series operational amplifier is ideal for professional audio equipment. In addition, low quiescent current and low cost make them ideal for portable applications requiring high precision. The OPAx227 series operational amplifier is pin-for-pin replacements for the industry standard OP-27 with substantial improvements across the board.

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3nV/√Hz Low noise

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5µs Setting time

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138dB High CMRR

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160dB High open-loop gain

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10nA Maximum Low input bias current

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75µV Maximum low offset voltage

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Green product and no Sb/Br

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.