TC7136中文资料Display A/D Converters数据手册Microchip规格书

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 &8486; 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

- Resolution on 200 mV Scale: 10µA- True Differential Input and Reference- Low Power Consumption: 500 µA at 9V- Direct LCD Driver for 4-1/2 Digits, Decimal PointsLow-Battery Indicator, and Continuity Indicator- Overrange and Underrange Outputs- Range Select Input: 10:1- High Common-Mode Rejection Ratio: 110dB- External Phase Compensation Not Required

简介

TC7136属于集成电路（IC）的显示驱动器。由制造生产的TC7136显示驱动器显示驱动器是一种集成电路 (IC)，可在微处理器 (MPU)、微控制器 (MCU) 或其他电路系统之间提供转换、接口和控制，用于 LCD、LED、OLED、DLP、真空荧光和 AMOLED 等显示器。可能的通信接口和协议包括模拟、BCD、I2C、并行、串行、SMBus、SPI 和 QSPI。