TC7136A中文資料Display A/D Converters數(shù)據(jù)手冊Microchip規(guī)格書

描述 Description

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 μVP-P noise performance guarantees a \"rock solid\" reading.The auto-zero cycle guarantees a zero display readout for a 0V input.

特性 Features

- Fast Overrange Recovery, GuaranteedFirst 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 μVP-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

簡介

TC7136A屬于集成電路（IC）的顯示驅(qū)動器。由Microchip制造生產(chǎn)的TC7136A顯示驅(qū)動器顯示驅(qū)動器是一種集成電路 (IC)，可在微處理器 (MPU)、微控制器 (MCU) 或其他電路系統(tǒng)之間提供轉(zhuǎn)換、接口和控制，用于 LCD、LED、OLED、DLP、真空熒光和 AMOLED 等顯示器?？赡艿耐ㄐ沤涌诤蛥f(xié)議包括模擬、BCD、I2C、并行、串行、SMBus、SPI 和 QSPI。