High precision operational amplifier

The op amps (short for operational amplifiers) have broad applications. For sensing small signals, low offset voltage and low noise are required. Our first IC, AT8551, is such a product. It has very low maximum offset voltage, <5µV (competition AD8551: 10µV); low noise, <0.75µVP-P @0.01Hz to 10Hz (competition AD8551: 1µVP-P @0Hz to 10Hz); high slew rate, 2.7V/µs (competition AD8551: 0.4µV/µs); high speed, 4.5MHz (competition AD8551: 1.5MHz); and, the best of all, low cost, $0.78 @1000pcs (competition AD8551: $1.25 @1000pcs).

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The AT8091/1N(single), AT8092/2N(dual), AT8094 (quad) are rail-to-rail output voltage feedback amplifiers offering ease of use and low cost. They have bandwidth and slew rate typically found in current feedback amplifiers. All have a wide input commonmode voltage range and output voltage swing, making them easy to use on single supplies as low as 2.5V. Despite being low cost, the AT809X series provide excellent overall performance. They offer wide bandwidth to 350MHz (G = +1) along with 0.1dB flatness out to 58MHz (G = +2) and offer a typical low power of 4.2mA/amplifier. 

Part Number Datasheet
AT8091 DATASHEET

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The AT8605ARTZ/AT8552 (dual version & shutdown) series of CMOS operational amplifiers use auto-zero techniques to simultaneously provide very low offset voltage (5μV max) and near-zero drift over time and temperature.  

Part Number Datasheet
AT8605ARTZ DATASHEET

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The AT82X families of products offer low voltage operation and rail-to-rail input and output, as well as excellent speed/power consumption ratio, providing an excellent bandwidth (14MHz) and slew rate of 10V/us. The op-amps are unity gain stable and feature an ultra-low input bias current. 

Part Number Datasheet
AT821 DATASHEET

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The AT8551/AT8552 (dual version) series of CMOS operational amplifiers use auto-zero techniques to simultaneously provide very low offset voltage (5uV max) and near-zero drift over time and temperature. This family of amplifiers has ultralow noise, offset and power.

Part Number Datasheet
AT8551 DATASHEET

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This AT8557 general-purpose CMOS operational amplifier provides ultralow noise, offset and power. The AT8557 uses auto-zero techniques to simultaneously provide very low offset voltage (50μV max) and near-zero drift over time and temperature.

Part Number Datasheet
AT8557 DATASHEET
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