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ADS7805U

Name: ADS7805U
Rating: 4.7 (12 reviews)

IC ADC 16BIT SAR 28SOIC

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資料表 ADS7805U DataSheet
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規格

Part Status	Active
Number of Bits	16
Sampling Rate (Per Second)	100k
Number of Inputs	1
Input Type	Single Ended
Data Interface	Parallel
Configuration	S/H-ADC
Ratio - S/H:ADC	1:1
Number of A/D Converters	1
Architecture	SAR
Reference Type	External, Internal
Voltage - Supply, Analog	5V
Voltage - Supply, Digital	5V
Operating Temperature	-25°C ~ 85°C
Package / Case	28-SOIC (0.295", 7.50mm Width)
Supplier Device Package	28-SOIC
Mounting Type	Surface Mount
Base Product Number	ADS7805

概述

Description

The ADS7805U is a high-performance, 16-bit analog-to-digital converter (ADC) designed for precision data acquisition applications. It features a sampling rate of up to 100 kSPS (kilosamples per second) and operates on a single +5V supply. The device utilizes a successive approximation architecture, which allows for high speed and accuracy in converting analog signals to digital form.
Key features include low power consumption, an internal reference, and a flexible input signal range. The ADS7805U supports both unipolar and bipolar input configurations, making it versatile for various applications. It communicates with microcontrollers and digital signal processors via a parallel or serial interface, simplifying system integration.
Common applications include industrial automation, medical instrumentation, and any system requiring precise measurement of analog signals. Its compact package and user-friendly design make it suitable for space-constrained environments while maintaining high-performance standards.

Features

The ADS7805U is a 16-bit analog-to-digital converter (ADC) designed for high-speed, precision data acquisition. Key features include:
1. Sampling Rate: Capable of sampling at up to 1.0 MSPS.
2. Resolution: 16-bit resolution for accurate representation of analog signals.
3. Input Range: Supports a differential input range, enhancing noise immunity.
4. Single Supply Operation: Operates on a single +5V supply, simplifying design requirements.
5. Low Power Consumption: Designed for efficiency, making it suitable for battery-operated devices.
6. Serial Interface: Uses a standard serial interface (SPI), facilitating easy communication with microcontrollers.
7. Fast Conversion Time: Features a fast conversion time, enabling rapid data acquisition.
8. Internal Reference: Includes an integrated voltage reference for stable performance.
These features make the ADS7805U ideal for applications in industrial automation, medical instrumentation, and consumer electronics.

Package

The ADS7805U is available in a 28-lead SSOP (Shrink Small Outline Package) form factor. This compact package is designed for surface mounting and offers a smaller footprint suitable for various electronic applications.

Pinout

The ADS7805U is a 16-bit analog-to-digital converter (ADC) with a total of 28 pins. Here’s a brief overview of the pin functions:
1. VDD: Power supply voltage.
2. AGND: Analog ground.
3. DGND: Digital ground.
4. REF+: Positive reference voltage input.
5. REF-: Negative reference voltage input.
6. VIN+: Positive analog input voltage.
7. VIN-: Negative analog input voltage.
8. CLKIN: Clock input for the converter.
9. D0-D15: 16 data output pins (D0 is LSB, D15 is MSB).
10. CS: Chip select for initiating conversion.
11. RD: Read signal for outputting data.
12. WR: Write signal for controlling the internal operation.
13. LDAC: Load DAC for external use.
14. A0-A3: Address pins for configuration.
15. NPN_OUT: Output for internal circuitry.
16. TEST: Test mode pin for diagnostics.
This ADC is designed for applications requiring high precision in data acquisition.

Manufacturer

The ADS7805U is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments specializes in designing and producing a wide range of analog and digital semiconductor solutions, including microcontrollers, processors, and various types of sensors and signal processing components. Founded in 1930, TI has established itself as a major player in the electronics industry, focusing on innovation and technology for applications in various sectors such as automotive, industrial, communications, and consumer electronics. The ADS7805U itself is a high-resolution analog-to-digital converter (ADC) used in applications requiring precise signal conversion.

Application

The ADS7805U is a 12-bit analog-to-digital converter (ADC) used in applications such as industrial automation, process control, medical instrumentation, data acquisition systems, and consumer electronics. Its high-speed performance and precision make it suitable for measuring analog signals in environments requiring accurate digital representation, including sensor interfacing and signal processing.

Equivalent

Equivalent products to the ADS7805U include the AD7790, LTC2400, and MCP3208. These alternatives also offer high-resolution analog-to-digital conversion, suitable for similar applications. Always verify specifications like resolution, sampling rate, and interface compatibility when considering replacements.