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Name: AD7656A-1BSTZ
Brand: Analog Devices Inc.
SKU: AD7656A-1BSTZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Analog Devices Inc. AD7656A-1BSTZ

Part No.:: AD7656A-1BSTZ

Manufacturer:: Analog Devices Inc.

Package:: 64-LQFP

Datasheet:: AD7656A-1BSTZ.pdf

Description:: IC ADC 16BIT SAR 64LQFP

In Stock:: 3514

Quantity:: Add To Cart

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AD7656A-1BSTZ Specifications

Packaging:
Tray
Series:
iCMOS®
Product Status:
Active
Number of Bits:
16
Sampling Rate(PerSecond):
250k
Number of Inputs:
6
Input Type:
Single Ended
Data Interface:
SPI, Parallel, DSP
Configuration:
S/H-ADC
Ratio-S/H:ADC:
1:1
Number of A/D Converters:
6
Architecture:
SAR
Reference Type:
External, Internal
Voltage-Supply Analog:
5V
Voltage-Supply Digital:
5V
Features:
Simultaneous Sampling, True Bipolar
Operating Temperature:
-40°C ~ 85°C

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AD7656A-1BSTZ information

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AD7656A-1BSTZ Typical application Circuitry

AD7656A-1BSTZ

The AD7656A-1BSTZ is a high-performance, 16-bit analog-to-digital converter (ADC) with six independent input channels. It is designed for applications requiring simultaneous sampling of multiple analog signals, such as in industrial control systems, data acquisition systems, and medical instrumentation.

Key Features:

1. High Resolution: The AD7656A-1BSTZ offers 16-bit resolution, ensuring precise digital representation of analog signals.

2. Multiple Channels: It can sample multiple signals at once because it has six separate input channels.

3. Fast Sampling Rate: It is appropriate for high-speed data collecting applications, with a maximum sampling rate of 250 kSPS per channel.

4. Flexible Input Range: The ADC supports a variety of input ranges, including ±10V, ±5V, and ±2.5V, accommodating different signal amplitudes.

Application Scenario: Multichannel Temperature Monitoring System

In a temperature monitoring system for an industrial process, the AD7656A-1BSTZ can be used to simultaneously measure temperatures at multiple points using thermocouples.

Circuit Design:

1. Power Supply Connections: Connect a +5V supply to pin 49 (VDD) and ground to pin 33 (DGND) for the digital circuitry, and a +5V supply to pin 17 (AVDD) and ground to pin 1 (AGND) for the analog circuitry.

2. Analog Inputs: Connect the outputs of the thermocouples to the input channels (AIN0 to AIN5) on pins 2 to 7. Use appropriate signal conditioning circuits to match the thermocouple output range with the selected input range of the ADC.

3. Reference Voltage: Connect a precision reference voltage to pin 16 (REF) to set the ADC's full-scale range. A typical value is 5V for a ±10V input range.

4. Control Signals: Connect the CONVST (conversion start) pin 48 to a digital output of the microcontroller to initiate the conversion process. The BUSY pin 47 indicates when the ADC is busy converting.

5. Data Interface: Connect the parallel data output pins (D0 to D15) to the corresponding data input pins of the microcontroller or digital signal processor for data transfer. The RD (read) pin 46 and CS (chip select) pin 45 are used to control the data transfer process.

Design Considerations:

- Signal Conditioning: Use appropriate signal conditioning circuits to amplify and filter the thermocouple signals before feeding them into the AD7656A-1BSTZ.

- Reference Voltage Stability: Choose a stable and low-noise reference voltage to ensure accuracy in measurements.

- Power Supply Decoupling: Place decoupling capacitors close to the power supply pins to reduce noise and ensure stable operation.

- Data Transfer Timing: Ensure proper timing for the control signals and data transfer to avoid communication errors.

In summary, the AD7656A-1BSTZ is a versatile ADC suitable for multichannel temperature monitoring systems. By carefully considering signal conditioning, reference voltage stability, power supply decoupling, and data transfer timing, a reliable and accurate temperature monitoring system can be designed using the AD7656A-1BSTZ.

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6. What is the process for return or replacement of AD7656A-1BSTZ?

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(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 AD7656A-1BSTZ.

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

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