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TC7116 Series 9 V 7-Segment 3-1/2 Digit Analog-to-Digital Converter - PDIP-40

Nom du fabricant: Microchip
Emballage standard:
Product Variant Information section
Code de date: 1913
Product Specification Section
Caractéristiques techniques
Attributes Table
Interface: Parallel
No of Channels: 1
Supply Voltage: 9V
Rated Current: 800µA
Operating Temp Range: 0°C to 70°C
Storage Temperature Range: -65°C to +150°C
Style d'emballage :  PDIP-40
Méthode de montage : Through Hole
Fonctionnalités et applications

Analog to digital converters take real world signals and convert them into 0’s and 1’s, so that they may be manipulated by digital equipment.

Whether you are listening to a CD or scanning a picture to your computer, the ADC is converting the analog signal (Sound and light) to a digital source. The opposite is also true. If you take a digital signal and need to convert it back to an Analog source you need a DAC.

The ADC/DCA converter takes samples from the analog signal from time to time. Each sample is converted into a number, based on its voltage level.

The more sampling points that are used, the higher the sampling rate. The value of each sampled point is stored on a fixed-length variable. So, if you are using an 8-bit analog-to-digital converter, the lowest value will be zero and the highest value will be 255. If a 16-bit analog-to-digital converter is used, the lowest value will be zero and the highest value will be 65,535.

The TC7116A/TC7117A are 3-1/2 digit CMOS analog-to-digital converters (ADCs)containing all the active components necessary to construct a 0.05% resolution measurement system. Seven-segment decoders, polarity and digit drivers, voltage reference, and clock circuit are integrated on-chip. The TC7116A drives liquid crystal displays (LCDs) and includes a backplane driver. The TC7117A drives common anode light emitting diode (LED) displays directly with an 8mA drive current per segment. These devices incorporate a display hold (HLDR) function. The displayed reading remains indefinitely, as long as HLDR is held high. Conversions continue, but output data display latches are not updated. The reference low input (V –REF) is not available as it is with the TC7106/7107. V –REF is tied internally to analog common in the TC7116A/7117A devices. The TC7116A/7117A reduces linearity error to less than 1 count. 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 current and a 10 12 Ω input impedance. The 15 µVP-P noise performance guarantees a "rock solid" reading. The auto-zero cycle guarantees a zero display reading with a 0V input. The TC7116A and TC7117A feature a precision, low-drift internal reference, and are functionally identical to the TC7116/TC7117.A low-drift external reference is not normally  required with the TC7116A/TC7117A.

The Microchip TC7116CPL is a 3-1/2 digital CMOS AD converter which is offered in a 40 pin Plastic DIP package.

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3,35 $
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Product Variant Information section