OPA140

11MHz 单电源、低噪声、精密轨至轨输出 JFET 放大器

The , OPA2140, and OPA4140 operational amplifier op amp family is a series of low-power JFET input amplifiers that features good drift and low input bias current. The rail-to-rail output swing and input range that includes V– allow designers to take advantage of the low-noise characteristics of JFET amplifiers while also interfacing to modern, single-supply, precision analog-to-digital converters ADCs and digital-to-analog converters DACs.

The OPA140 achieves 11-MHz unity-gain bandwidth and 20-V/µs slew rate while consuming only 1.8 mA typical of quiescent current. It runs on a single 4.5-V to 36-V supply or dual ±2.25-V to ±18-V supplies.

All versions are fully specified from –40°C to 125°C for use in the most challenging environments. The OPA140 single is available in the 5-pin SOT-23, 8-pin VSSOP, and 8-pin SOIC packages; the OPA2140 dual is available in both 8-pin VSSOP and 8-pin SOIC packages; and the OPA4140 quad is available in the 14-pin SOIC and 14-pin TSSOP packages.

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Very Low Offset Drift: 1 µV/°C Maximum

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Very Low Offset: 120 µV

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Low Input Bias Current: 10 pA Maximum

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Very Low 1/f Noise: 250 nVPP, 0.1 Hz to 10 Hz

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Low Noise: 5.1 nV/√Hz

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Slew Rate: 20 V/µs

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Low Supply Current: 2 mA Maximum

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Input Voltage Range Includes V– Supply

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Single-Supply Operation: 4.5 V to 36 V

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Dual-Supply Operation: ±2.25 V to ±18 V

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No Phase Reversal

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Industry-Standard SOIC Packages

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VSSOP, TSSOP, and SOT-23 Packages