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US 8,836,425 B2Granted
Instrumentation input systems
AssigneeAnalog Devices, Inc.
InventorBarrie Gilbert
Life of this patent
Estimating the term…
Abstract
A variable gain amplifier has an attenuator having an input and a series of tap points, and a series of low-inertia switches, each switch coupled to a corresponding one of the tap points to steer outputs from the attenuator to an output terminal. An amplifier has an input cell, a load coupled to an output of the input cell, a buffer having an input coupled to the load, a feedback network coupled between an output of the buffer and the input cell, and a variable filter cell coupled to the input cell.
Claims11
A variable gain amplifier comprising:
- an attenuator having an input and a series of tap points;
- a series of low-inertia switches, each switch coupled to a corresponding one of the tap points to steer outputs from the attenuator to an output terminal;
- and
- one or more control signals connected to the series of low-inertia switches each low-inertia switch being coupled to one of the control signals, the control signals selecting the switches to steer the outputs.
1 more element
An amplifier comprising:
- an input cell;
- a load coupled to an output of the input cell;
- a buffer having an input coupled to the load;
- a feedback network coupled between an output of the buffer and the input cell;
- and
- a variable filter cell directly connected to the input cell.
3 more elements
Dependencies are inferred from the claim text.