Ultralow Noise Precision High Speed Op Amps

DescripTion
The LT1028(gain of –1 stable)/LT1128(gain of +1 stable) achieve a new standard of excellence in noise performance with 0.85nV/√Hz 1kHz noise, 1.0nV/√Hz 10Hz noise. This ultralow noise is combined with excellent high speed specifications (gain-bandwidth product is 75MHz for LT1028, 20MHz for LT1128), distortion-free output, and true precision parameters (0.1µV/°C drift, 10µV offset voltage, 30 million voltage gain). Although the LT1028/ LT1128 input stage operates at nearly 1mA of collector current to achieve low voltage noise, input bias current is only 25nA.

The LT1028/LT1128’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 LT1028/LT1128’s contribution to total system noise will be negligible.

FEATURES

Voltage Noise
1.1nV/√Hz Max at 1kHz
0.85nV/√Hz Typ at 1kHz
1.0nV/√Hz Typ at 10Hz
35nVp-p Typ, 0.1Hz to 10Hz
Voltage and Current Noise 100% Tested
Gain-Bandwidth Product
LT1028: 50MHz Min
LT1128: 13MHz Min
Slew Rate
LT1028: 11V/µs Min
LT1128: 5V/µs Min
Offset Voltage: 40µV Max
Drift with Temperature: 0.8µV/°C Max
Voltage Gain: 7 Million Min
Available in 8-Pin SO Package




IC, OP AMP, PRECISION, 1028, DIP8;
Op Amp Type:Low Noise;
No. of Amplifiers:1;
Bandwidth:50MHz;
Slew Rate:15V/µs;
Supply Voltage Range:± 4V to ± 18V;
Amplifier Case Style:DIP;
No. of Pins:8;
Operating Temperature Range:0°C to +70°C;
SVHC:No SVHC (19-Dec-2011);
Amplifier Type:Precision;
Base Number:1028;
Gain Bandwidth:75kHz;
IC Generic Number:1028;
IC Temperature Range:Commercial;
Input Offset Voltage Max:0.125mV;
Logic Function Number:1028;
Operating Temperature Max:70°C;
Operating Temperature Min:0°C;
Operational Amplifier Features:Ultra Low Noise;
Package / Case:DIP;
Slew Rate:11V/µs;
Supply Voltage + Nom:15V;
Supply Voltage Max:22V;
Supply Voltage Min:8V;
Termination Type:Through Hole