RH1028M/RH1128M Ultralow Noise Precision High Speed Op Amps DescriptionAbsolute MAxiMuM rAtings(Note 1) The RH1028(gain of –1 stable)/RH1128(gain of +1 stable) Supply Voltage (–55°C to 125°C)..±16V achieve a new standard of excellence in noise performance Differential Input Current (Note 9) ...±25mA with 0.9nV/√Hz 1kHz noise, 1.0nV/√Hz 10Hz noise. This Input Voltage ..Equal to Supply Voltage ultralow noise is combined with excellent high speed speci- Output Short-Circuit Duration .. Indefinite fications (gain-bandwidth product is 75MHz for RH1028, Operating Temperature Range.. –55°C to 125°C 20MHz for RH1128), distortion-free output, and true preci- Storage Temperature Range ... –65°C to 150°C sion parameters (0.25µV/°C drift, 20µV offset voltage, 25 Lead Temperature (Soldering, 10 sec) .. 300°C million voltage gain). Although the RH1028/RH1128 input L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. stage operates at nearly 1mA of collector current to achieve All other trademarks are the property of their respective owners. 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. burn-in circuitpAcKAge inForMAtion 10k TOP VIEW 16V NC 1 10 NC – 3 – 8 VOS TRIM 2 9 VOS TRIM –IN 3 + 8 V+ 7 200Ω +IN 4 7 OUT 4 + 5 V– 5 6 OVERCOMP 10k –16V W PACKAGE RH1028 BI 10-LEAD CERPAC tAble 1: electricAl chArActeristics(Preirradiation) VS = ±15V, VCM = 0V, unless otherwise noted.TA = 25°CSUB-–55°C ≤ TA ≤ 125°CSUB-SYMBOL PARAMETERCONDTIONSNOTES MINTYPMAX GROUP MINTYPMAX GROUP UNITS VOS Input Offset Voltage 2 20 80 1 45 180 2, 3 µV ∆VOS Long-Term Input Offset 3 0.3 µV/MO ∆Time Voltage Stability ∆VOS Average Input Offset 8 0.25 1.0 µV/°C ∆Temp Voltage Drift IOS Input Offset Current VCM = 0V 18 150 1 30 200 2, 3 nA IB Input Bias Current VCM = 0V ±50 ±400 1 ±100 ±600 2, 3 nA en Input Noise Voltage fO = 10Hz 5 1.0 2.5 nV/√Hz Density fO = 1000Hz, 100% Tested 0.9 1.6 nV/√Hz rh10281128fe For more information www.linear.com/RH1028M 1 Document Outline Description Electrical Characteristics