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AD7779ACPZ

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8-Channel Octal ADC Delta-Sigma 16ksps 24-bit Serial 64-Pin LFCSP EP Tray

  • Verpackung/Behälter :
  • LFCSP-64
  • Produkt der Kategorien :
  • Analog to Digital Converters (ADC)
  • RoHs Status:
  • Pb-free Halide free
  • Lagerbestand:
  • 24

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AD7779ACPZ Beschreibung

FEATURES
8-channel,24-bit simultaneous sampling analog-to-digital converter (ADC)
Single-ended or true differential inputs Programmable gain amplifier (PGA) per channel(gains of
1,2,4, and 8)
Low dc input current:±4nA Up to 16 kSPS output data rate (ODR) per channel Programmable ODRs and bandwidth Sample rate converter (SRC) for coherent sampling Sampling rate resolution up to 15.2 uSPS Low latency sinc3 filter path Adjustable phase synchronization Internal 2.5 V reference Two power modes High resolution mode Low power mode Optimizes power dissipation and performance Low resolution successive approximation (SAR) ADC for system and chip diagnostics Power supply Bipolar (±1.65V) or unipolar (3.3 V) supplies Digital input/output(1/O) supply:1.8Vto 3.6VPerformance temperature range:-40℃ to +105℃
Functional temperature range:-40℃to+125℃
Performance Combined ac and dc performance
108 dB signal-to-noise ratio(SNR)/dynamic range at 16 ksPS in high resolution mode
-109 dB total harmonic distortion(THD)
±7ppm integral nonlinearity(INL)
±40μV offset error
±0.1% gain error

±10 ppm/Ctypical temperature coefficient

APPLICATIONS
Circuit breakers
General-purpose data acquisition
Electroencephalography (EEG)
Industrial process control
GENERAL DESCRIPTION 

The AD7779ACPZ is an 8-channel, simultaneous sampling ADC. There are eight full sigma-delta(2-A) ADCs on chip. The AD7779
provides an ultralow input current to allow direct sensor connection. Each input channel has a programmable gain stageallowing gains of 1,2,4, and 8 to map lower amplitude sensor outputs into the full-scale ADC input range, maximizing thedynamic range of the signal chain. The AD7779ACPZ accepts Var from 1 V up to 3.6 V. The analog inputs accept unipolar(0 V to VauF) or true bipolar(±Vaf/2 V) analog input signals with 3.3V or ±1.65V analog supply voltages, respectively. The analog inputs can be configured to accept true differential or single-ended signals to match different sensor output configurations.
Each channel contains an ADC modulator and a sinc3, low latency digital filter. An SRC is provided to allow fine resolution control over the AD7779ACPZ ODR. This control can be used in applications where the ODR resolution is required to maintain coherency with
0.01Hz changes in the line frequency. The SRC is programmablethrough the serial port interface(SPI). The AD7779ACPZ implements two different interfaces:a data output interface and SPI control interface. The ADC data output interface is dedicated to trans-
mitting the ADC conversion results from the AD7779ACPZ to the processor. The SPI interface is used to write to and read from the AD7779ACPZ configuration registers and for the control and reading of data from the SAR ADC. The SPI interface can also be configured to output the Z-A conversion data.
The AD7779ACPZ includes a 12-bit SAR ADC. This ADC can be used for AD7779ACPZ diagnostics without having to decommission one of the Z-A ADC channels dedicated to system measurement func-tions. With the use of an external multiplexer, which can be controlled through the three general-purpose inputs/outputs pins
(GPIOs), and signal conditioning, the SAR ADC can be used to validate the 2-A ADC measurements in applications where functional safety is required. In addition, the AD7779ACPZ SAR ADCincludes as an internal multiplexer to sense internal nodes.
The AD7779ACPZ contains a 2.5 V reference and reference buffer. The reference has a typical temperature coefficient of 10 ppm/C.
The AD7779ACPZ offers two modes of operation: high resolution mode and low power mode. High resolution mode provides a higher dynamic range while consuming 10.75 mW per channel; low power mode consumes just 3.37 mW per channel at a reduced dynamic range specification.
The specified operating temperature range is-40℃ to +105°℃, although the device is operational up to +125C.
Note that throughout this data sheet, certain terms are used to refer to either the multifunction pins or a range of pins. The multi-
function pins, such as DCLKO/SDO, are referred to either by the entire pin name or by a single function of the pin, for example, DCLKO, when only that function is relevant. In the case of ranges of pins, AVSSx refers to the following pins: AVSS1A, AVSS1B, AVSS2A, AVSS2B, AVSS3, and AVSS4.

Feature

  • 8-channel, 24-bit simultaneous sampling analog-to-digital converter (ADC)
  • Single-ended or true differential inputs
  • Programmable gain amplifier (PGA) per channel (gains of 1, 2, 4, and 8)
  • Low dc input current
    • ±1.5 nA (differential)
    • ±4 nA (single-ended)
  • Up to 16 kSPS output data rate (ODR) per channel
  • Programmable ODRs and bandwidth
  • Sample rate converter (SRC) for coherent sampling
    • Sampling rate resolution up to 15.2 µSPS
  • Low latency sinc3 filter path
  • Adjustable phase synchronization
  • Internal 2.5 V reference
  • Two power modes optimizing power dissipation and performance: high resolution mode and low power mode
  • Low resolution successive approximation (SAR) ADC for system and chip diagnostics
  • Power supply
    • Bipolar (±1.65 V) or unipolar (3.3 V) supplies
    • Digital input/output (I/O) supply: 1.8 V to 3.6 V
    • Performance temperature range: –40°C to +105°C
    • Functional temperature range: –40°C to +125°C
  • Performance
    • Combined ac and dc performance
    • 108 dB signal-to-noise ratio (SNR)/dynamic range at 16 kSPS in high resolution mode
    • −109 dB total harmonic distortion (THD)
    • ±7 ppm integral nonlinearity (INL)
    • ±40 µV offset error
    • ±0.1% gain error±10 ppm/°C typical temperature coefficient
    • ±10 ppm/°C typical temperature coefficient

Anwendungen

  • Circuit breakers
  • General-purpose data acquisition
  • Electroencephalography (EEG)
  • Industrial process control

AD7779ACPZ Pinout
(Bild: Pinout)

AD7779ACPZ Block Diagram
(Bild: Diagram)

Technische Parameter

  • Number of Bits
  • 24
  • Sampling Rate (Per Second)
  • 16k
  • Number of Inputs
  • 8
  • Input Type
  • Differential, Single Ended
  • Data Interface
  • Serial
  • Configuration
  • PGA-ADC
  • Ratio S/H:ADC
  • 1:1
  • Number of A/D Converters
  • 8
  • Architecture
  • Sigma-Delta
  • Reference Type
  • External, Internal
  • Voltage Supply, Analog
  • ??1.65V, 2.2V ~ 3.6V
  • Features
  • Simultaneous Sampling
  • Operating Temperature
  • -40??C ~ 125??C
  • Package / Case
  • 64-WFQFN Exposed Pad, CSP
  • Supplier Device Package
  • 64-LFCSP (9x9)
  • Mounting Type
  • Surface Mount

AD7779ACPZ Datasheet

AD7779ACPZ Verwandte besondere

Ratings and Reviews (1)

  • 5 / 5
  • 5 Stars 100%
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  • **rcad***
    2018-07-22

    Great product, fast shipping, highly recommended!

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  • 90 Tage Qualitätsgarantie für alle Produkte.

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Verpackung

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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

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We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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Garantien

1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.

FAQ:

Q: How does Jotrin guarantee that AD7779ACPZ is the original manufacturer or agent of AD?
We have a professional business development department to strictly test and verify the qualifications of AD original manufacturers and agents. All AD suppliers must pass the qualification review before they can publish their AD7779ACPZ devices; we pay more attention to the channels and quality of AD7779ACPZ products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of AD7779ACPZ chips? Including AD original factory information, Analog to Digital Converters (ADC) application, AD7779ACPZ pictures?
You can use Jotrin's intelligent search engine, or filter by Precision A/D Converters ; Simultaneous Sampling A/D Converters category, or find it through Analog Devices, Inc Information page.
Q: Are the AD's AD7779ACPZ price and stock displayed on the platform accurate?
The AD's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for AD7779ACPZ, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
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TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of AD7779ACPZ?
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 AD7779ACPZ we delivered, we will accept the replacement or return of the AD7779ACPZ 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 AD7779ACPZ.
(3)The AD7779ACPZ 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
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as AD7779ACPZ datasheet pdf, AD7779 pin diagram?
Need any After-Sales service, please feel free contact us: sales@jotrin.com

Analog Devices, Inc

AD
Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized module used in test and measurement equipment. In 1967, the company published the first issue of its...
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