36V precision op amp cuts LF noise to ultra-low levels
The low input offset voltage holds over temperature and input common mode range: TCVOS is 0.5 μV/°C maximum and CMRR is 124 dB minimum. Open loop gain is typically 142 dB, enabling the device to achieve less than 1 ppm nonlinearity.
The amp has 15 MHz gain-bandwidth product and employs slew enhancement circuitry to achieve up to 30 V/µsec slew rate. The part draws 7.2 mA, which can be reduced during periods of non-use to 6.2 μA using its shutdown pin.
The LT6018 is specified for operation from 8V to 33V supplies, for industrial (–40°C to 85°C) and extended (–40°C to 125°C) temperature ranges. It is available in SO-8E with exposed centre pad for enhanced heat dissipation, and space-saving 4 x 3 mm DFN packages. It is priced starting at $3.25 (1000).
Linear Technology; www.linear.com/product/LT6018
next; feature list…
Ultralow voltage noise
30 nVp-p noise: 0.1 Hz to 10 Hz
1.2 nV/√Hz typical at 1 kHz
Maximum offset voltage: 50 μV
Maximum offset voltage drift: 0.5 μV/°C
CMRR: 124 dB (minimum)
AVOL: 132 dB (minimum)
Slew rate: 30 V/µsec
Gain-bandwidth product: 15 MHz
Wide supply range: 8V to 33V
Ultralow THD: –115 dB at 1 kHz
Unity gain stable
Low power shutdown: 6.2 μA
SO-8E and 4 × 3 mm 12-lead DFN packages
4.5 kV HBM and 2 kV CDM tolerant
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