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US 11,005,438 B2Granted
Active saturation prevention of pulse-mode transimpedance amplifiers
AssigneeApple Inc.
InventorIdo Luft
Life of this patent
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Abstract
An apparatus includes a Transimpedance Amplifier (TIA), an input interface and input masking circuitry. The TIA is configured to convert input current pulses into output voltage pulses. The input interface is configured to receive a control signal indicative of one or more time intervals. The input masking circuitry is configured to prevent the input current pulses from saturating the TIA during the one or more time intervals indicated by the control signal.
Claims12
An apparatus, comprising:
- a Transimpedance Amplifier (TIA), configured to convert input current pulses into output voltage pulses;
- an input interface, configured to receive a control signal indicative of one or more time intervals;
- and
- input masking circuitry, configured to prevent the input current pulses from saturating the TIA, and from appearing on an output of the TIA, during the one or more time intervals indicated by the control signal.
1 more element
A method, comprising:
- converting input current pulses into output voltage pulses using a Transimpedance Amplifier (TIA);
- receiving a control signal indicative of one or more time intervals;
- and
- preventing the input current pulses from saturating the TIA, and from appearing on an output of the TIA, during the one or more time intervals indicated by the control signal.
1 more element
Dependencies are inferred from the claim text.