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Name: AD7944BCPZ-RL7
Brand: Analog Devices Inc.
SKU: AD7944BCPZ-RL7
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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Analog Devices Inc. AD7944BCPZ-RL7

Part No.:: AD7944BCPZ-RL7

Manufacturer:: Analog Devices Inc.

Package:: 20-WFQFN Exposed Pad, CSP

Datasheet:: AD7944BCPZ-RL7.pdf

Description:: IC ADC 14BIT SAR 20LFCSP

In Stock:: 3467

Quantity:: Add To Cart

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AD7944BCPZ-RL7 Specifications

Packaging:
Tape & Reel (TR)
Series:
PulSAR®
Product Status:
Active
Number of Bits:
14
Sampling Rate(PerSecond):
2.5M
Number of Inputs:
1
Input Type:
Pseudo-Differential
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:
2.375V ~ 2.625V
Voltage-Supply Digital:
2.375V ~ 2.625V
Features:
-
Operating Temperature:
-40°C ~ 85°C

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AD7944BCPZ-RL7 information

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AD7944BCPZ-RL7 Typical application Circuitry

AD7944BCPZ-RL7

The AD7944BCPZ-RL7 is a high-performance, 14-bit analog-to-digital converter (ADC) with a fast serial interface. It is designed for applications requiring precise and rapid conversion of analog signals to digital form, such as in data acquisition systems, medical devices, and industrial automation.

Key Specifications of the AD7944BCPZ-RL7:

- Resolution: 14-bit accuracy ensures detailed analog-to-digital conversion.

- Sampling Rate: Capable of up to 1 MSPS (Mega Samples Per Second), enabling quick data acquisition.

- Power Efficiency: Low power consumption is ideal for energy-sensitive applications.

- Interface: Serial interface (SPI compatible) facilitates easy data transfer.

- Supply Voltage: Operates with a 5V power supply for compatibility with various systems.

- Input Range: Single-ended input range simplifies signal interfacing.

- Package: Compact LFCSP package is suitable for space-constrained applications.

- Temperature Range: Appropriate for industrial temperature ranges.

Application Scenario - Portable Medical Device:

In a portable medical device, such as a handheld ECG monitor, the AD7944BCPZ-RL7 can be used to digitize analog signals from ECG sensors, providing accurate and real-time heart rate monitoring.

Detailed Circuit Connection:

1. Power Supply Integration: Connect the AD7944BCPZ-RL7 VDD pin to a 3.3V supply to power the ADC, optimizing power consumption in the portable device. Ensure the GND pin is grounded for stable operation.

2. Sensor Interface: Attach the AIN pin to the output of the ECG sensor to capture the heart's electrical signals accurately.

3. Serial Interface Configuration: Link the SCLK, SDI, and SDO pins to the corresponding SPI pins on a microcontroller for efficient data communication. The CNV pin should be connected to a control signal for initiating conversions.

4. Reference Voltage Setup: Connect a stable reference voltage to the REF pin to set the ADC's full-scale range, crucial for maintaining measurement accuracy.

Circuit Design Considerations:

1. Signal Conditioning: Implement appropriate signal conditioning circuits to match the ECG sensor outputs to the ADC's input range, ensuring accurate heart rate readings.

2. Noise Minimization: Utilize decoupling capacitors near the power supply pins and employ filtering techniques to reduce noise in the analog signals, essential for clear ECG signals.

3. Reference Stability: Choose a reference voltage source with low temperature drift and low noise to ensure consistent accuracy across different operating conditions.

4. PCB Layout: Design the PCB layout to minimize noise coupling, keeping analog and digital sections separate and using a ground plane to reduce interference, critical for high-quality ECG signals.

5. Data Transfer Optimization: Optimize the SPI interface connections to ensure reliable and fast data transfer, crucial for real-time monitoring in portable medical devices.

By incorporating the AD7944BCPZ-RL7 into a portable medical device, engineers can achieve accurate and rapid digitization of ECG signals, enhancing the device's capability for real-time heart rate monitoring and diagnostics.

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6. What is the process for return or replacement of AD7944BCPZ-RL7?

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 AD7944BCPZ-RL7 we delivered, we will accept the replacement or return of the AD7944BCPZ-RL7 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 AD7944BCPZ-RL7.

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

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(1)Inform us within 90 days

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