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Name: AD7788ARMZ
Brand: Analog Devices Inc.
SKU: AD7788ARMZ
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. AD7788ARMZ

Part No.:: AD7788ARMZ

Manufacturer:: Analog Devices Inc.

Package:: 10-TFSOP, 10-MSOP (0.118, 3.00mm Width)

Datasheet:: AD7788ARMZ.pdf

Description:: IC ADC 16BIT SIGMA-DELTA 10MSOP

In Stock:: 2647

Quantity:: Add To Cart

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AD7788ARMZ Specifications

Packaging:
Bulk,Tube
Series:
-
Product Status:
Active
Number of Bits:
16
Sampling Rate(PerSecond):
16.6
Number of Inputs:
1
Input Type:
Differential
Data Interface:
SPI, DSP
Configuration:
ADC
Ratio-S/H:ADC:
-
Number of A/D Converters:
1
Architecture:
Sigma-Delta
Reference Type:
External
Voltage-Supply Analog:
2.5V ~ 5.25V
Voltage-Supply Digital:
2.5V ~ 5.25V
Features:
-
Operating Temperature:
-40°C ~ 85°C

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AD7788ARMZ information

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AD7788ARMZ Typical application Circuitry

AD7788ARMZ

The AD7788ARMZ is a compact, low-power, 24-bit analog-to-digital converter (ADC) designed for high-precision data acquisition in portable or battery-powered devices. It excels in applications requiring accurate sensor data conversion with minimal power consumption, such as in portable medical devices, environmental monitoring equipment, and industrial control systems. The AD7788ARMZ features a sigma-delta ADC, providing excellent noise rejection and ensuring high fidelity in signal conversion.

Key Specifications

1. Resolution: 24-bit sigma-delta ADC for precise data conversion.

2. Input Channels: Single fully differential input or two single-ended inputs, offering flexibility in sensor integration.

3. Data Rate: Programmable data rate up to 120 Hz, allowing users to balance between speed and power consumption.

4. Power Supply: Operates from a single 3.3V supply, compatible with battery-operated devices.

5. Interface: Serial peripheral interface (SPI) for easy connection to microcontrollers.

6. Power Modes: Multiple power-down modes for enhanced power management.

Application Scenario: Environmental Monitoring System

In an environmental monitoring system, the AD7788ARMZ is ideal for reading data from high-precision sensors, such as temperature, humidity, or gas concentration sensors. Its high resolution and low power consumption make it suitable for remote, battery-powered monitoring stations where accurate data collection is critical.

Detailed Circuit Connection for Environmental Monitoring System

1. Power Supply Configuration: Provide a stable 3.3V power supply to the VDD pin (pin 16) of the AD7788ARMZ. Use a low-noise linear regulator and bypass capacitors close to the pin to minimize supply noise, crucial for maintaining the ADC's precision.

2. Reference Voltage Setup: Connect a precise 2.5V reference to the REFIN+/REFIN- pins (pins 5 and 6). This reference voltage is vital as it directly affects the conversion accuracy. Decoupling capacitors should be added to stabilize the reference voltage.

3. Sensor Integration: For a differential input configuration, connect the sensor outputs to the AIN+/AIN- pins (pins 7 and 8). Use shielded cables if the sensor is located far from the AD7788ARMZ to reduce noise pickup.

4. SPI Communication: Interface the AD7788ARMZ with a microcontroller using the SPI pins: SCLK (pin 2), DIN (pin 3), DOUT (pin 4), and \CS (pin 1). Ensure that the SPI bus traces are kept as short as possible and away from noisy components to avoid signal corruption.

5. Clock Source: The AD7788ARMZ contains an internal clock, eliminating the need for an external clock source. This feature simplifies the design and reduces the component count.

6. Grounding Scheme: Implement a solid ground plane on the PCB to serve as a return path for both the analog and digital signals. Proper grounding is essential to minimize ground loop areas and reduce ADC performance degradation due to noise.

Design Considerations- Signal Integrity: Employ proper routing and shielding techniques to protect the analog input signals from noise, especially in a high-noise environment.

- Power Management: Utilize the AD7788ARMZ's power-down modes effectively in battery-powered applications to extend the operational life.

- Thermal Management: Although the AD7788ARMZ is low power, ensuring adequate thermal pathways in the design can prevent any potential overheating and ensure stable operation.

- PCB Layout: Careful PCB layout is critical. Keep the analog and digital sections separate, and route the digital lines away from the analog inputs to prevent digital noise from affecting the ADC performance.

Incorporating these considerations and connections into the design of an environmental monitoring system, the AD7788ARMZ can be effectively utilized to achieve high-precision, low-power data acquisition, making it an ideal choice for a wide range of applications requiring accurate sensor monitoring.

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6. What is the process for return or replacement of AD7788ARMZ?

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 AD7788ARMZ we delivered, we will accept the replacement or return of the AD7788ARMZ 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 AD7788ARMZ.

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

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations