Download Datasheets TC7136A Device 
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Home - Analog & Interface Products - Mixed Signal Devices - Display A/D Converters - TC7136A Device, download datasheet

Download Datasheets TC7136A Device


The TC7136 and TC7136A are low-power,3-1/2 digit with liquid crystal display (LCD)drivers with analog-to-digital converters.These devices incorporate an "integrator output zero"phase which guarantees overrange recovery.The performance of existing TC7126,TC7126A and ICL7126-based systems may be upgraded with minor changes to external,passive components. The TC7136A has an improved internal zener reference voltage circuit which maintains the analog common temperature drift to 35ppm/C (typical)and 75 ppm/C (maximum).This represents an improvement of two to four times over similar 3-1/2 digit converters.The costly,space-consuming external reference source may be removed. The TC7136/A limits linearity error to less than 1 count on 200mV or 2V full-scale ranges.Roll-over error the difference in readings for equal magnitude but opposite polarity input signals is below 1 count. High-impedance differential inputs offer 1 pA leakage currents and a 10 12 ? input impedance.The differential reference input allows ratiometric measurements for ohms or bridge transducer measurements.The 15 VP-P noise performance guarantees a "rock solid" reading.The auto-zero cycle guarantees a zero display readout for a 0V input.

Datasheet and Other Documentation

Status

In Production

Specification Chart

# Per Package

GBWP

IQ Typ

VOS Max

Operating Voltage

Temp. Range

1

9

0.5

-

3 1/2

2000

Additional Features

Fast Overrange Recovery, Guaranteed
First Reading Accuracy
Low Temperature Drift Internal Reference
TC7136 70 ppm/C Typ.
TC7136A 35ppm/C Typ.
Guaranteed Zero Reading With Zero Input
Low Noise: 15 VP-P
High Resolution: 0.05%
Low Input Leakage Current: 1pA Typ. 10pA Max
Precision Null Detectors With True Polarity at Zero
High-Impedance Differential Input
Convenient 9V Battery Operation With Low Power
Dissipation: 500 Typ. 900W Max

Package Options

40 PDIP(P), 44 PLCC(L), 44 PQFP(QF)



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