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Name: ADS7809U
Brand: Texas Instruments
SKU: ADS7809U
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments ADS7809U

Part No.:: ADS7809U

Manufacturer:: Texas Instruments

Package:: 20-SOIC (0.295, 7.50mm Width)

Datasheet:: ADS7809U.pdf

Description:: IC ADC 16BIT SAR 20SOIC

In Stock:: 3843

Quantity:: Add To Cart

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ADS7809U Specifications

Packaging:
Bulk,Tube
Series:
-
Product Status:
Active
Number of Bits:
16
Sampling Rate(PerSecond):
100k
Number of Inputs:
1
Input Type:
Single Ended
Data Interface:
SPI, DSP
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
Features:
-
Operating Temperature:
-40°C ~ 85°C

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ADS7809U information

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ADS7809U Typical application Circuitry

Texas Instruments produces the 12-bit, low-power ADS7809U Analog-to-Digital Converter (ADC). This IC uses a successive approximation register (SAR) architecture to provide high-speed conversion while maintaining good power efficiency.

Utilization of the ADS7809U:

Given its high-speed, low-power nature, and excellent conversion accuracy, the ADS7809U is widely used in:

1. Data Acquisition Systems: Due to its accuracy and speed, it is widely used in data acquisition systems.

2. Process Control: It's a good fit for process control applications where speed and precision are crucial.

3. Medical Instrumentation: The ADS7809U also finds use in medical instruments where precision ADCs are required.

Main Characteristics of the ADS7809U:

1. 12-Bit ADC: The ADS7809U contains a 12-bit ADC which provides high-resolution conversion.

2. Fast Conversion Time: The ADC conversion rate is 1.25µs, allowing for high-speed data acquisition.

3. Low Power Consumption: This chip operates at a 5V power supply with low power consumption, ideal for battery-powered systems.

4. DIP Package: The ADS7809U comes in a 28-PIN DIP package, making it easy to prototype.

Example Circuit Connection for a Data Acquisition Application:

In a data acquisition system, the ADS7809U can be connected as follows:

1. Power Supply: Connect the +VCC pin (Pin 28) and the -VCC pin (Pin 14) to the positive and negative terminals of the 5V power supply respectively. The GND pin (Pin 7) should be connected to the system ground.

2. Analog Input: Connect the analog input signal to the VIN pin (Pin 20).

3. Clock Source: A clock source should be connected to the CLK IN pin (Pin 27). This clock source should be a square wave with a frequency as per the desired sampling rate.

4. Digital Output: The digital output of the converter can be read from the DB0-DB11 pins (Pins 8-13, 15-18).

Design Considerations for the Circuit:

When designing a circuit with the ADS7809U, it's important to consider the following:

1. Analog Signal Quality: Ensure the quality of the analog signal being fed to the VIN pin to get accurate conversion results.

2. Power Supply Noise: Power supply noise can interfere with the ADC conversion, so it's crucial to use a stable and noise-free power supply. Decoupling capacitors can be used to reduce noise.

3. Clock Source Stability: The stability of the clock source is crucial for accurate conversion and to meet the timing requirements of the ADC.

4. PCB Layout: A good PCB layout can enhance signal integrity and reduce noise interference.

In summary, the ADS7809U is a 12-bit ADC that offers high speed and accuracy, making it an excellent choice for a variety of applications that require fast and accurate analog-to-digital conversion.

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6. What is the process for return or replacement of ADS7809U?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the ADS7809U we delivered, we will accept the replacement or return of the ADS7809U only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of ADS7809U.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations