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. a U 4 .D at h S a t e e
m o c
Monolithic Peak Detector with Reset-and-Hold Mode PKD01
FUNCTIONAL BLOCK DIAGRAM
+IN –IN OUTPUT V+ V–
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FEATURES Monolithic Design for Reliability and Low Cost High Slew Rate: 0.5 V/ s Low Droop Rate TA = 25؇ C: 0.1 mV/ms T A = 125؇ C: 10 mV/ms Low Zero-Scale Error: 4 mV Digitally Selected Hold and Reset Modes Reset to Positive or Negative Voltage Levels Logic Signals TTL and CMOS Compatible Uncommitted Comparator On-Chip Available in Die Form
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– CMP + LOGIC GND
DET GATED "gm" AMP
–IN +IN
– +
–IN +IN
GENERAL DESCRIPTION
The PKD01 tracks an analog input signal until a maximum amplitude is reached. The maximum value is then retained as a peak voltage on a hold capacitor.