| Allicdata Part #: | ISL267817IUZ-T7ATR-ND |
| Manufacturer Part#: |
ISL267817IUZ-T7A |
| Price: | $ 2.40 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Intersil |
| Short Description: | IC ADC 12BIT SPI/SRL 200K 8MSOP |
| More Detail: | 12 Bit Analog to Digital Converter 1 Input 1 SAR 8... |
| DataSheet: |  ISL267817IUZ-T7A Datasheet/PDF |
| Quantity: | 250 |
| 250 +: | $ 2.17950 |
| 500 +: | $ 1.95565 |
| 1250 +: | $ 1.64934 |
| 2500 +: | $ 1.56687 |
Specifications
| Number of A/D Converters: | 1 |
| Base Part Number: | ISL267817 |
| Supplier Device Package: | 8-MSOP |
| Package / Case: | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Operating Temperature: | -40°C ~ 85°C |
| Features: | -- |
| Voltage - Supply, Digital: | 5V |
| Voltage - Supply, Analog: | 5V |
| Reference Type: | External |
| Architecture: | SAR |
| Series: | -- |
| Ratio - S/H:ADC: | 1:1 |
| Configuration: | S/H-ADC |
| Data Interface: | SPI |
| Input Type: | Differential |
| Number of Inputs: | 1 |
| Sampling Rate (Per Second): | 200k |
| Number of Bits: | 12 |
| Part Status: | Active |
| Packaging: | Tape & Reel (TR) |
Description
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Data Acquisition – Analog to Digital Converters (ADC): ISL267817IUZ-T7A Application Field and Working Principle
Analog-to-digital converters (ADCs) are a vital component of data acquisition systems and are used to translate analog signals into digital signals that can then be used in computer systems and other digital devices. The ISL267817IUZ-T7A is an integrated circuit that is used as an analog-to-digital converter and is an example of a successive approximation register (SAR) ADC. This article will examine the application field and working principle of the ISL267817IUZ-T7A.
The ISL267817IUZ-T7A is specifically designed for data acquisition applications where sampling rates vary from a few kilohertz to tens of kilohertz. The device is particularly useful for digitizing signals from multiple transducers, such as resistive-bridge transducers and thermocouples, and can sample up to 80 channels simultaneously. The device is offered in a 64-pin LQFP package, providing a small form factor for equipment designers working in space-constrained applications. The device is also offered in a temperature-compensated temperature range (TTL) allowing it to accurately digitize even in temperature-varying conditions.
The ISL267817IUZ-T7A is an 8-bit, SAR ADC and as such, it has several features which enable it to accurately convert analog signals into digital signals. These features include an 800KSPS (kilo samples per second) sample rate, an 800mV analog input swing, a ± 4uVrms input noise level and a 1.6MHz reference frequency clock.
The device is powered by a 5V supply and is fully compliant with the international standards for converters (IEC61000-4-2 and -5). The device is also capable of being operated in a multiplexer channel configuration, allowing it to acquire data from multiple transducers at the same time.
The working principle of the ISL267817IUZ-T7A is based on the principle of successive approximation. The device uses an internal capacitor to hold the input voltage and an internal voltage-to-frequency converter to create an output equivalent to the input voltage. The output from the voltage-to-frequency converter is used to drive a counter, which is then incremented or decremented according to an internal algorithm.The output of the internal counter is then compared to the reference voltage and if they match then the output of the device is registered as the digital value equivalent to the input voltage. If the output of the internal counter and the reference voltage do not match then the output of the ADC will be adjusted accordingly until the output of the ADC matches the reference voltage.
In summary, the ISL267817IUZ-T7A is a highly accurate, 8-bit SAR ADC used for digitizing multiple transducers. It has a 800KSPS sample rate, an 800mV input swing, a ± 4uVrms noise level and a 1.6MHz reference frequency. The device is powered by a 5V supply and can be operated in a multiplexer channel configuration. The working principle of the ISL267817IUZ-T7A is based on the principle of successive approximation.
The specific data is subject to PDF, and the above content is for reference
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