Analogue to digital converter of the multi-slope type

Details Analogue to digital converter of the multi-slope type Analogue to digital converter of the multi-slope type

1988-02-09

1989-08-15

Shoop, Jr., William M.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341128, 341167, H03M 160

Patent

active

048579335

ABSTRACT:
An analogue to digital multi-slope converter has an integrator 10 to which an analogue input signal 30 is continuously applied. A reference voltage 36, 37 is superimposed onto the integrator input 30 in pulse form, being switched on and off according to a predetermined program controlled by a clock and modified by a comparator 11 such that reference voltage pulses occur in pairs of opposite polarity. The sequence of pulses is applied in such a manner that the final pulse of a sequence causes the integrator output to move towards a comparator 11 reference level, the reference voltage then being maintained until the reference level is reached after which a new cycle is started.

REFERENCES:
patent: 4161724 (1979-07-01), Smutny
patent: 4164733 (1979-08-01), Landsburg et al.
patent: 4354176 (1982-10-01), Aihara
patent: 4584566 (1986-04-01), Arcara

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