GENERAL DESCRIPTION

The TC850 is a monolithic CMOS analog-to-digital converter (ADC) with resolution of 15-bits plus sign. It combines a chopper-stabilized buffer and integrator with a unique multiple-slope integration technique that increases conversion speed. The result is 16 times improvement in speed over previous 15-bit, monolithic integrating ADCs (from 2.5 conversions per sec up to 40 per sec). Faster conversion speed is especially welcome in systems with human interface, such as digital scales.

FEATURES

■ 15-bit Resolution Plus Sign Bit

■ Up to 40 Conversions per Second

■ 12 Conversions per Second Guaranteed

■ Integrating ADC Technique

— Monotonic

— High Noise Immunity

— Auto-Zeroed Amplifiers Eliminate Offset Trimming

■ Wide Dynamic Range ...................................... 96dB

■ Low Input Bias Current ................................... 30pA

■ Low Input Noise ........................................... 30µVP-P

■ Sensitivity ....................................................... 100µV

■ Flexible Operational Control

— Continuous or On-Demand Conversions

— Data Valid Output

■ Bus Compatible, 3-State Data Outputs

— 8-Bit Data Bus

— Simple µP Interface

— Two Chip Enables

— Read ADC Result Like Memory

■ ± 5V Power Supply Operation ...................... 20mW

■ 40-Pin Dual-in-Line or 44-Pin PLCC Packages

TC850属于集成电路（IC） > 模数转换器（ADC）。微芯科技股份有限公司制造生产的TC850模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。