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Name: AD7705BRZ
Brand: Analog Devices Inc.
SKU: AD7705BRZ
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. AD7705BRZ

Part No.:: AD7705BRZ

Manufacturer:: Analog Devices Inc.

Package:: 16-SOIC (0.295, 7.50mm Width)

Datasheet:

Description:: IC ADC 16BIT SIGMA-DELTA 16SOIC

In Stock:: 3487

Quantity:: Add To Cart

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AD7705BRZ Specifications

Packaging:
Bulk,Tube
Series:
-
Product Status:
Active
Number of Bits:
16
Sampling Rate(PerSecond):
500
Number of Inputs:
2
Input Type:
Differential
Data Interface:
SPI, DSP
Configuration:
MUX-PGA-ADC
Ratio-S/H:ADC:
-
Number of A/D Converters:
1
Architecture:
Sigma-Delta
Reference Type:
External
Voltage-Supply Analog:
2.7V ~ 3.3V, 5V
Voltage-Supply Digital:
2.7V ~ 3.3V, 5V
Features:
PGA
Operating Temperature:
-40°C ~ 85°C

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AD7705BRZ information

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AD7705BRZ Typical application Circuitry

The AD7705BRZ is a prominent dual-channel, 16-bit, sigma-delta analog-to-digital converter (ADC). This ADC is notable for its ability to handle low bandwidth input signals with impressive precision.

Applications where AD7705BRZ shines:

1. Industrial measurement systems

2. Battery-operated devices

3. Temperature monitoring with RTDs

4. Digital weigh scales

5. Liquid level sensing

Key attributes of the AD7705BRZ:

1. Two fully differential input channels

2. Integrated programmable gain amplifier (PGA)

3. Onboard digital filter

4. Low power consumption

5. Compatibility with SPI serial interfaces

Envision integrating the AD7705BRZ in a digital weigh scale system:

1. Differential Inputs: The load cell's output should connect to the ADC's differential inputs. Utilize Ain1+ (Pin 3) and Ain1- (Pin 2) for one such connection.

2. Power Supply: The VCC pin (Pin 16) must link to a positive voltage supply. Correspondingly, the GND pin (Pin 15) should be grounded.

3. Data Communication: To retrieve digital data, make sure the DOUT/DRDY pin (Pin 14) is connected to the microcontroller's SPI input line. Transmit commands to the AD7705BRZ using the DIN pin (Pin 13).

4. Clock Input: The external clock signal needs to be provided at the MCLK IN pin (Pin 4). The choice of clock frequency directly impacts the ADC's output rate.

5. Chip Control: For manually resetting the chip, interface with the RESET pin (Pin 12). During SPI communication, the CS pin (Pin 11) is invaluable for selecting the chip.

Pivotal design elements with the AD7705BRZ:

- Electromagnetic Interference (EMI): Given the AD7705BRZ's precision nature, EMI can distort readings. Opt for shielded cables and proper grounding to mitigate this.

- Supply Voltage Stability: A stable supply voltage ensures the AD7705BRZ performs at its best. Consider using voltage regulators and decoupling capacitors.

- Clock Source Integrity: The purity and stability of the clock source can make or break your measurements. Prioritize a noise-free, stable clock.

- Thermal Aspects: While the AD7705BRZ typically operates cool, confined spaces can lead to heat accumulation. Ensure adequate ventilation if necessary.

To conclude, the AD7705BRZ offers an exemplary blend of precision and flexibility for myriad applications. Attentive design considerations can extract the finest performance from this ADC.

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6. What is the process for return or replacement of AD7705BRZ?

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 AD7705BRZ we delivered, we will accept the replacement or return of the AD7705BRZ 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 AD7705BRZ.

(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