RH1028M

PRODUCTION

Ultralow Noise Precision High Speed Op Amps

Data Sheet (Rev. G) Product Selection Table
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Overview

  • Voltage Noise
    • 1.6nV/rt Hz Max. at 1kHz
    • 0.9nV/rt Hz Typ. at 1kHz
    • 4.7nV/ rtHz Typ. at 10Hz
  • Gain-Bandwidth Product
    • RH1028: 50MHz Min.
    • RH1128: 11MHz Min.
  • Slew Rate
    • RH1028: 11V/µs Min.
    • RH1128: 4.5V/µs Min.
  • Offset Voltage: 80µV Max.
  • Drift with Temperature: 1.0µV/°C Max.
  • Voltage Gain: 5 Million Min.

Radiation Performance

  • Total Ionizing Dose (TID) Tolerance, per TM1019.8, MIL-STD-883:
    - 200kRad (Si), per condition A at 50Rads(Si)/sec

The RH1028 (gain of -1 stable) /RH1128 (gain of +1 stable) achieve a new standard of excellence in noise performance with 0.9nV/√Hz 1kHz noise, 1.0nV/√Hz 10Hz noise. This ultralow noise is combined with excellent high speed specifications (gain-bandwidth product is 75MHz for RH1028, 20MHz for RH1128), distortion-free output, and true precision parameters (0.25μV/°C drift, 20μV offset voltage, 25 million voltage gain). Although the RH1028/RH1128 input stage operates at nearly 1mA of collector current to achieve low voltage noise, input bias current is only 50nA.

The RH1028/RH1128’s voltage noise is less than the noise of a 50Ω resistor. Therefore, even in very low source impedance transducer or audio amplifier applications, the RH1028/RH1128’s contribution to total system noise will be negligible.

Applications

  • Low Noise Frequency Synthesizers
  • Infrared Detectors
  • Accelerometer and Gyro Amplifiers
  • 350Ω Bridge Signal Conditioning
RH1028M
Ultralow Noise Precision High Speed Op Amps
Product Package 1
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Documentation

Data Sheet 1

Application Note 1

Controlled Drawings 2

Spec Notice 1

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • RH1028
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