TC7129CPL View Datasheet(PDF) - Microchip Technology

Part Name

Description

MFG CO.

TC7129CPL

4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers

Microchip Technology 

TC7129

Integrate

De-integrate

Time

Overshoot due to zero-crossing between

clock pulses

Integrator Residue Voltage

Figure 4-9:

Zero Integrate

and Latch

Clock Pulses

Overshoot caused by comparator

delay of 1 clock pulse

Accuracy Errors in Dual-Slope Conversion.

INT1

Integrate

DE1

De-integrate REST X10 DE2 REST X10 DE3

Zero Integrate

TC7129

Integrator

Note: Shaded area greatly expanded in time and amplitude.

Figure 4-10:

Integration Waveform.

Residual Voltage

DS21459D-page 12

© 2006 Microchip Technology Inc.

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