tc7129 Microchip Technology Inc., tc7129 Datasheet - Page 12
tc7129
Manufacturer Part Number
tc7129
Description
4-1/2 Digit Analog-to-digital Converters With On-chip Lcd Drivers
Manufacturer
Microchip Technology Inc.
Datasheet
1.TC7129.pdf
(28 pages)
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Figure 4-9:
Figure 4-10:
DS21459D-page 12
TC7129
TC7129
Note: Shaded area greatly expanded in time and amplitude.
Zero Integrate
and Latch
Time
Integrate
Accuracy Errors in Dual-Slope Conversion.
Integration Waveform.
Integrate
INT
1
De-integrate
De-integrate
DE
1
Clock Pulses
Integrator
REST X10
DE
Overshoot due to zero-crossing between
clock pulses
Residual Voltage
2
REST
Overshoot caused by comparator
delay of 1 clock pulse
Integrator Residue Voltage
X10
© 2006 Microchip Technology Inc.
DE
3
Zero Integrate