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TLC7225IDW  模数转换器 (ADCs) 8Bit, 5 us Quad DAC, Parallel Input, Simultaneous Update, Binary Input Coding 24SOIC 25 to 85
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逻辑芯片
产品详情
型号TLC7225IDW
封装24-SOIC
品牌Texas Instruments
年份17+
描述模数转换器 (ADCs) 8-Bit, 5 us Quad DAC, Parallel Input, Simultaneous Update, Binary Input Coding 24-SOIC -25 to 85
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Texas Instruments TLC7225IDW

The TLC7225 consists of four 8-bit voltage-output digital-to-analog converters (DACs), with output buffer amplifiers and interface logic with double register-buffering.

Separate on-chip latches are provided for each of the DACs. Data is transferred into one of these data latches through a common 8-bit TTL/CMOS-compatible (5 V) input port. Control inputs A0 and A1 determine which DAC is loaded when WR\ goes low. Only the data held in the DAC registers determines the analog outputs of the converters. The double register buffering allows simultaneous update of all four outputs under control of LDAC\. All logic inputs are TTL- and CMOS-level compatible and the control logic is speed compatible with most 8-bit microprocessors. Each DAC includes an output buffer amplifier capable of driving up to 5 mA of output current.

The TLC7225 performance is specified for input reference voltages from 2 V to VDD - 4 V with dual supplies. The voltage-mode configuration of the DACs allow the TLC7225 to be operated from a single power-supply rail at a reference of 10 V.

The TLC7225 is fabricated in a LinBiCMOSTM process that has been specifically developed to allow high-speed digital logic circuits and precision analog circuits to be integrated on the same chip. The TLC7225 has a common 8-bit data bus with individual DAC latches. This provides a versatile control architecture for simple interface to microprocessors. All latch-enable signals are level triggered.

Combining four DACs, four operational amplifiers, and interface logic into a small, 0.3-inch wide, 24-terminal SOIC allows significant reduction in board space requirements and offers increased reliability in systems using multiple converters. The pinout optimizes board layout with all of the analog inputs and outputs at one end of the package and all of the digital inputs at the other.

The TLC7225C is characterized for operation from 0°C to 70°C. The TLC7225I is characterized for operation from -25°C to 85°C.

德克萨斯仪器tlc7225idw
的tlc7225由四位电压输出数模转换器(DAC),输出缓冲放大器和接口逻辑双登记缓冲。
单独的片内锁存器是提供每个DAC。数据通过一个通用的8位TTL / CMOS兼容(5 V)输入端口传输到这些数据锁中。控制输入A0和A1确定哪些DAC加载时,WR \去低。只有在DAC寄存器中保存的数据才能决定转换器的模拟输出。双缓冲允许登记的所有四个输出同时更新LDAC \控制下。所有逻辑输入都是TTL和CMOS电平兼容,控制逻辑与大多数8位微处理器兼容。每个DAC包括一个输出缓冲放大器,能够驱动高达5 mA的输出电流。
的tlc7225性能被指定为输入参考电压从2 V双电源VDD - 4 V。该DAC的电压模式配置允许tlc7225是从在10参考单电源轨V操作
这是一个tlc7225已发展到允许高速数字逻辑电路和精密模拟电路被集成在同一芯片linbicmostm工艺制作。有一个共同的tlc7225 8位数据总线与单个DAC锁存器。这为微处理器的简单接口提供了一个通用的控制架构。所有锁存使能信号都是电平触发的。
结合四个DAC、四个运算放大器,和接口逻辑为0.3英寸宽,小,24端SOIC允许显著减少板空间要求并提供使用多个转换器系统提高可靠性。引脚优化与所有的模拟输入和输出的一个包和所有的数字输入在另一端的电路板布局。
tlc7225c的特点是操作从0°C 70°C. tlc7225i特点是操作从25°C 85°C.
 
 
 

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