Datasheet > TC500AIOG713

TC500AIOG713

更新时间： 2024-09-24 03:18:23

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
34页	635K
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Precision Analog Front Ends

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TC500AIOG713 数据手册

TC500/A/510/514

Precision Analog Front Ends

Features:

General Description:

• Precision (up to 17 bits) A/D Converter “Front

End”

TheTC500/A/510/514 family are precision analog front

ends that implement dual slope A/D converters having

a maximum resolution of 17 bits plus sign. As a

minimum, each device contains the integrator, zero

crossing comparator and processor interface logic. The

TC500 is the base (16-bit max) device and requires

both positive and negative power supplies. The

TC500A is identical to the TC500 with the exception

that it has improved linearity, allowing it to operate to a

maximum resolution of 17 bits. The TC510 adds an on-

board negative power supply converter for single-

supply operation. The TC514 adds both a negative

power supply converter and a 4-input differential

analog multiplexer.

• 3-Pin Control Interface to Microprocessor

• Flexible: User Can Trade-off Conversion Speed

for Resolution

• Single-Supply Operation (TC510/TC514)

• 4 Input, Differential Analog MUX (TC514)

• Automatic Input Voltage Polarity Detection

• Low Power Dissipation:

- (TC500/TC500A): 10 mW

- (TC510/TC514): 18 mW

• Wide Analog Input Range:

- ±4.2V (TC500A/TC510)

Each device has the same processor control interface

consisting of 3 wires: control inputs (A and B) and zero-

crossing comparator output (CMPTR). The processor

manipulates A, B to sequence the TC5XX through four

phases of conversion: auto-zero, integrate, de-inte-

grate and integrator zero. During the auto-zero phase,

offset voltages in the TC5XX are corrected by a closed

loop feedback mechanism. The input voltage is applied

to the integrator during the integrate phase. This

causes an integrator output dv/dt directly proportional

to the magnitude of the input voltage. The higher the

input voltage, the greater the magnitude of the voltage

stored on the integrator during this phase. At the start

of the de-integrate phase, an external voltage

reference is applied to the integrator and, at the same

time, the external host processor starts its on-board

timer. The processor maintains this state until a

transition occurs on the CMPTR output, at which time

the processor halts its timer. The resulting timer count

is the converted analog data. Integrator zero (the final

phase of conversion) removes any residue remaining

in the integrator in preparation for the next conversion.

• Directly Accepts Bipolar and Differential

Input Signals

Applications:

• Precision Analog Signal Processor

• Precision Sensor Interface

• High Accuracy DC Measurements

The TC500/A/510/514 offer high resolution (up to 17

bits), superior 50/60 Hz noise rejection, low-power

operation, minimum I/O connections, low input bias

currents and lower cost compared to other converter

technologies having similar conversion speeds.

DS21428D-page 1

12 3 4 5 6 7...34

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与TC500AIOG713相关器件

型号	品牌	获取价格	描述	数据表
TC500AIOI	MICROCHIP	获取价格	Precision Analog Front Ends with Dual Slope ADC
TC500AIOI713	MICROCHIP	获取价格	Precision Analog Front Ends with Dual Slope ADC
TC500AIOIOI713	MICROCHIP	获取价格	Precision Analog Front Ends
TC500AIPE	MICROCHIP	获取价格	Precision Analog Front Ends
TC500AIPF	MICROCHIP	获取价格	Precision Analog Front Ends
TC500AIPJ	MICROCHIP	获取价格	Precision Analog Front Ends
TC500CJE	MICROCHIP	获取价格	Precision Analog Front Ends with Dual Slope ADC
TC500COE	TELCOM	获取价格	PRECISION ANALOG FRONT ENDS
TC500COE	MICROCHIP	获取价格	Precision Analog Front Ends
TC500COE713	MICROCHIP	获取价格	Precision Analog Front Ends with Dual Slope ADC

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