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Name: ADS7844EB
Brand: Texas Instruments
SKU: ADS7844EB
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 ADS7844EB

Part No.:: ADS7844EB

Manufacturer:: Texas Instruments

Package:: 20-SSOP (0.154, 3.90mm Width)

Datasheet:: ADS7844EB.pdf

Description:: IC ADC 12BIT SAR 20SSOP

In Stock:: 3825

Quantity:: Add To Cart

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ADS7844EB Specifications

Packaging:
Bulk,Tube
Series:
-
Product Status:
Active
Number of Bits:
12
Sampling Rate(PerSecond):
200k
Number of Inputs:
4, 8
Input Type:
Differential, Single Ended
Data Interface:
SPI
Configuration:
MUX-S/H-ADC
Ratio-S/H:ADC:
1:1
Number of A/D Converters:
1
Architecture:
SAR
Reference Type:
External
Voltage-Supply Analog:
2.7V ~ 3.6V, 5V
Voltage-Supply Digital:
2.7V ~ 3.6V, 5V
Features:
-
Operating Temperature:
-40°C ~ 85°C

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ADS7844EB information

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ADS7844EB Typical application Circuitry Schematics

An analog-to-digital converter (ADC) with eight channels, twelve bits of sampling, and Serial Peripheral Interface (SPI) is called the ADS7844EB. Due to its small size, rapid speed, and low power consumption, it is a desirable option for many applications. Here are some general recommendations for connecting the ADS7844EB circuit:

1. Power Supply: The ADS7844EB operates with a single power supply between2.7V and 5.25V. Each power supply pin should be bypassed with a decoupling capacitor, typically a 10μF tantalum in parallel with a 0.1μF ceramic capacitor, placed as close to the pin as possible.

2. Inputs: The ADS7844EB provides eight single-ended inputs or four differential input channels. Inputs should be within the voltage range specified by the data sheet. Make sure your analog input signals are appropriately conditioned (buffered, filtered, etc.) based on your application needs.

3. Reference Voltage: The converter has a built-in 2.5V voltage reference, but you can also use an external one if needed.

4. Communication: The ADS7844EB uses an SPI-compatible interface for communication with microcontrollers or other digital devices. The interface includes four lines: OUT, DIN, SILK, and CS.

5. Control Signals: The control signal inputs, such as the chip select (CS) and conversion start (START), should be connected to your digital control circuit, which is often a microcontroller.

6. Outputs: The digital outputs from the ADC are provided over the OUT line.

Remember, the values of components and additional circuitry would depend on your specific application requirements. Always see the device data sheet for more detailed information.

In terms of PCB layout, proper care should be taken to separate the analog and digital ground planes to minimize noise and interference. It's also critical to use short, direct traces for high-speed signal lines, and to maintain good grounding practices.

The data sheet should always be consulted for the most accurate and complete details. This will provide you with important specifics on how to use and connect the ADS7844EB in your design.

ADS7844EB FAQ

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6. What is the process for return or replacement of ADS7844EB?

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 ADS7844EB we delivered, we will accept the replacement or return of the ADS7844EB 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 ADS7844EB.

(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