AD7927
Info: : PRODUCTION
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AD7927

8-Channel, 200 kSPS, 12-Bit ADC with Sequencer in 20-Lead TSSOP

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $3.76
Features
  • Fast throughput rate: 200 kSPS
  • Specified for AVDD of 2.7V to 5.25V
  • Low power
    3.6 mW maximum at 200 kSPS with 3 V supply
    7.5 mW maximum at 200 kSPS with 5 V supply
  • 8 (single-ended) inputs with sequencer
  • Flexible power/serial clock speed management
  • No pipeline delays
  • Wide input bandwidth
    • 70 dB minimum SINAD at 50 kHz input frequency
  • High speed serial interface SPI-, QSPI-, MICROWIRE-, DSP-compatible
  • Shutdown mode: 0.5 μA maximum
  • 20-lead TSSOP
  • Qualified for automotive applications
Additional Details
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The AD7927 is a 12-bit, high speed, low power, 8-channel, successive approximation ADC. The part operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 200 kSPS. The part contains a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 8 MHz.

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 the conversion is also initiated at this point. There are no pipeline delays associated with the part.

The AD7927 uses advanced design techniques to achieve very low power dissipation at maximum throughput rates. At maximum throughput rates, the AD7927 consumes 1.2 mA maximum with 3 V supplies; with 5 V supplies, the current consumption is 1.5 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 AD7927 features 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 AD7927 is determined by the SCLK frequency, as this is also used as the master clock to control the conversion. The conversion time may be as short as 800 ns with a 20 MHz SCLK.

PRODUCT HIGHLIGHTS

  1. High Throughput with Low Power Consumption. The AD7927 offers up to 200 kSPS throughput rates. At the maximum throughput rate with 3 V supplies, the AD7927 dissipates 3.6 mW of power maximum.
  2. Eight Single-Ended Inputs with a Channel Sequencer. A consecutive sequence of channels can be selected on which the ADC cycles and converts.
  3. Single-Supply Operation with VDRIVE Function. The AD7927 operates 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.
  4. 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 part also features various shutdown modes to maximize power efficiency at lower throughput rates. Current consumption is 0.5 μA maximum when in full shutdown.
  5. No Pipeline Delay. The part features a standard successive approximation ADC with a CS input pin, which allows for accurate control of each sampling instant.
Part Models 4
1ku List Price Starting From $3.76

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD7927BRUZ
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AD7927BRUZ-REEL
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AD7927BRUZ-REEL7
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AD7927WYRUZ-REEL7
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Filter by Model

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Part Models

Product Lifecycle

PCN

Feb 11, 2011

- 10_0005

Halogen Free Material Change for TSSOP Products Assembled at Amkor

AD7927BRUZ

PRODUCTION

AD7927BRUZ-REEL

PRODUCTION

AD7927BRUZ-REEL7

PRODUCTION

Feb 8, 2010

- 04_0080

Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.

AD7927BRUZ

PRODUCTION

AD7927BRUZ-REEL

PRODUCTION

AD7927BRUZ-REEL7

PRODUCTION

Jan 16, 2012

- 11_0244

Halogen Free Material Change for Select TSSOP Products Assembled at Amkor

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Feb 11, 2011

- 10_0005

arrow down

Halogen Free Material Change for TSSOP Products Assembled at Amkor

AD7927BRUZ

PRODUCTION

AD7927BRUZ-REEL

PRODUCTION

AD7927BRUZ-REEL7

PRODUCTION

Feb 8, 2010

- 04_0080

arrow down

Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.

AD7927BRUZ

PRODUCTION

AD7927BRUZ-REEL

PRODUCTION

AD7927BRUZ-REEL7

PRODUCTION

Jan 16, 2012

- 11_0244

arrow down

Halogen Free Material Change for Select TSSOP Products Assembled at Amkor

Evaluation Kit

Evaluation Kits 1

EVAL-AD7927

AD7927 Evaluation kit

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EVAL-AD7927

AD7927 Evaluation kit

Product Detail

The EVAL-AD7927CBZ is a fully featured evaluation kit for the AD7927. This board operates in stand alone mode or in conjunction with the Evaluation Controller board . When operated with the Evaluation Controller board, software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the Evaluation Controller board.


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