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AD7928BRU

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8-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 20-Lead TSSOP

  • Package/Case :
  • TSSOP-20
  • Product Categories :
  • Precision A/D Converters ; Multiplexed A/D Converters
  • RoHs Status:
  • Lead free / RoHS Compliant
  • In-stock:
  • 762

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AD7928BRU Product Details

The conversion process and data acquisition are controlled using CS and the serial clock signal, allowing the device to easily interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and conversion is also initiated at this point. There are no pipeline delays associated with the part.

The AD7908/AD7918/AD7928BRU use advanced design techniques to achieve very low power dissipation at maximum throughput rates. At maximum throughput rates, the AD7908/AD7918/AD7928BRU consume 2 mA maximum with 3 V supplies; with 5 V supplies, the current consumption is 2.7 mA maximum.

Through the configuration of the control register, the analog input range for the part can be selected as 0 V to REFIN or 0 V to 2 × REFIN, with either straight binary or twos complement output coding. The AD7908/AD7918/AD7928BRU each feature eight single-ended analog inputs with a channel sequencer to allow a preprogrammed selection of channels to be converted sequentially.

The conversion time for the AD7908/AD7918/AD7928BRU is determined by the SCLK frequency, which is also used as the master clock to control the conversion.

Product Highlights

  • High Throughput with Low Power Consumption. The AD7908/ AD7918/AD7928BRU offer up to 1 MSPS throughput rates. At the maximum throughput rate with 3 V supplies, the AD7908/ AD7918/AD7928BRU dissipate just 6 mW of power maximum.
  • Eight Single-Ended Inputs with a Channel Sequencer. A sequence of channels can be selected, through which the ADC cycles and converts on.
  • Single-Supply Operation with VDRIVE Function. The AD7908/ AD7918/AD7928BRU operate from a single 2.7 V to 5.25 V supply. The VDRIVE function allows the serial interface to connect directly to either 3 V or 5 V processor systems independent of AVDD.
  • Flexible Power/Serial Clock Speed Management. The conversion rate is determined by the serial clock, allowing the conversion time to be reduced through the serial clock speed increase. The parts also feature various shutdown modes to maximize power efficiency at lower throughput rates. Current consumption is 0.5 μA max when in full shutdown.
  • No Pipeline Delay. The parts feature a standard successive approximation ADC with accurate control of the sampling instant via a CS input and once off conversion control.

Feature

  • Fast throughput rate: 1 MSPS
  • Specified for AVDD of 2.7 V to 5.25 V
  • Low Power:6.0 mW max at 1 MSPS with 3 V supply13.5 mW max at 1 MSPS with 5 V supply
  • Eight (single-ended) inputs with sequencer
  • Wide input bandwidth: AD7928, 70 dB min SINAD at 50 kHz input frequency
  • Flexible power/serial clock speed management
  • No pipeline delays
  • High speed serial interface SPI®/QSPI™/MICROWIRE™/DSP compatible

AD7928BRU Pinout
(Picture: Pinout)

AD7928BRU Block Diagram
(Picture: Diagram)

Technical Parameters

  • Channels
  • 8
  • Resolutionbits
  • 12
  • Sample Ratemax | SPS
  • 1M
  • ADC SNR in dBFStyp | dBFS
  • -
  • INL in LSBtyp | LSBs
  • -
  • Device Architecture
  • SAR
  • Input Type
  • Single-Ended
  • Data Output Interface
  • Serial SPI
  • Powertyp | W
  • 13.5m

AD7928BRU Documents

  • AD7928 Technical Documentation/Data sheet

AD7928BRU Related Products

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Guarantees

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.

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Q: How does Jotrin guarantee that AD7928BRU 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 AD7928BRU devices; we pay more attention to the channels and quality of AD7928BRU products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of AD7928BRU chips? Including AD original factory information, Precision A/D Converters ; Multiplexed A/D Converters application, AD7928BRU pictures?
You can use Jotrin's intelligent search engine, or filter by Precision A/D Converters ; Multiplexed A/D Converters category, or find it through Analog Devices, Inc Information page.
Q: Are the AD's AD7928BRU 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 AD7928BRU, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Q: What is the process for returns or replacement of AD7928BRU?
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 AD7928BRU we delivered, we will accept the replacement or return of the AD7928BRU 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 AD7928BRU.
(3)The AD7928BRU 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.
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Analog Devices, Inc

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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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