Analog Devices,inc.

Colin S McIntosh

Colin Charles Price

Jeremy Richard Gorbold

Katherine O'Riordan

James Stegen

Robert Parle

Niall McDermott

A battery monitoring system and method are disclosed. A battery monitor compares data in parallel register files. If voltage deviation above a certain threshold is detected in one register file, the system generates an alert that a fault exists upstream in the system. In order to better detect errors, the system may intentionally alter the voltages on the batteries to be monitored.

Channel verification of multiple channels on one chip

A test mode control circuit for reconfiguring a device pin of an integrated circuit chip which is initially configured in a test mode includes an input register for applying trim/configuring data to one or more components on an integrated circuit chip; a device pin; an output register for receiving output data from an integrated circuit on an integrated circuit chip which integrated circuit has had one or more of its elements trimmed/reconfigured; an I/O logic circuit for controlling the device pin to operate as a test pin to selectively deliver the trim/configuring data to the input register and receive output data form the output register; a programmable ray including a plurality of logic state elements for permanently mapping a selected set of the trim/configuring data from the input register, the programmable array including a test bit; and a switching system for applying the trim/configuring data to the one or more components on the integrated circuit when the test bit is in a first, test mode and for applying the permanently mapped trim/configuring data to the components in a second, normal mode.

Test mode control circuit for reconfiguring a device pin of an integrated circuit chip

An improved successive approximation analogue-to-digital converter system including a D/A converter and a comparison capability, wherein a first trial value is stored in a successive approximation register and a comparison is made of relative amplitude of D/A converter output with respect to analogue signal amplitude, and an iterative process is performed in which a subsequent trial value is stored in the successive approximation register before the comparison is repeated. The improvement comprises conducting only one comparison for each trial, with the subsequent trial value for a plurality of iterations being greater than one-half the first trial value, such that a first trial value determined in error is corrected during subsequent iterations. Apparatus implementing the improved successive approximation A/D is also described.

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The Mount, United Kingdom

Colin S McIntosh