OPA828 - 36 V, High-Precision, Low-Noise, Low Bias Current, JFET-Input 50 MHz OP AMP

The OPA828 JFET is the next generation OPA627 and OPA827 operational amplifier (op amp),combining high speed with high dc precision and ac performance. This op amp supplies low-offsetvoltage (220 µV maximum), low-drift over temperature (0.5 µV/°C typical), low bias current (1 pAtypical), and low noise (4.3 nV/√Hz typical) with only340-nV_PP 0.1- to 10-Hz noise. The OPA828 operates over a wide supply-voltagerange, ±4 V to ±18 V on a supply current (5.5 mA/channel typical).

AC characteristics, including a 50-MHz gain bandwidth product (GBW), a slew rate of 150V/µs, and precision dc characteristics, make the OPA828 an excellent choice for a variety ofsystems. These include high-speed and high-resolution data-acquisition systems, such as 16-bit to18-bit mixed signal systems, transimpedance (I/V-conversion) amplifiers, filters, precision ±10-Vfront ends, and high-impedance sensor-interface applications.

The OPA828 is available in the industry-standard 8-pin SOIC surface-mount package and isspecified from –40°C to +125°C.

• Low Input Voltage Noise Density:
  4.3 nV/√Hz at 1 kHz
• Input Voltage Noise:
  0.1 Hz to 10 Hz: 120 nV_RMS
• Low Input Bias Current: 1 pA
• Input Offset Voltage: 15 µV
• Input Offset Drift: 0.5 µV/°C
• MUX-Friendly Inputs
• Gain Bandwidth: 50 MHz
• Slew Rate: 150 V/µs
• 16-bit Settling Time: 175 ns
• Overload Supply Current Limit
• Wide Supply Voltage Range: ±4 V to ±18 V
• Package: 8-pin SOIC

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